Ecotron SPVR OM 2013-Dec-9.qxd
Transcription
Ecotron SPVR OM 2013-Dec-9.qxd
Owner’s Manual DKH DKV 010 020 030 040 050 060 080 100 120 150 175 200 250 300 350 400 500 010 020 030 040 050 060 080 100 120 150 175 FOR MODELS RKH 010 020 030 040 050 060 080 100 120 150 175 200 250 300 350 400 500 With Supervisaire® CONTROLLERS with REMOTE TERMINALS Prg Esc For future reference, write your model number* here _____________ write your serial number* here ______________ write your ref number* here ______________ *See Product Description - Unit Nameplate. Data subject to change without notice. Dectron, Inc. July 2013 1 DK/DKV/RK Series Dehumidifier Owners Manual NOTE: For your convenience this manual is organized into tasks arranged in a workable order. Most material relevant to a single task is on one page or a group of sequential pages. Please feel free to attach copies of the appropriate pages to the task work-order. To the Owner: This manual contains important instructions in installing, operating, and maintaining your Ecotron® and system. Please read the entire manual carefully and if you have any questions contact your local Ecotron representative. Your warranty is valid only if conditions explained in this manual are met. To the Installer: This manual contains vital instructions for installing and starting up the Ecotron® and system. Please read the entire manual carefully and if you have any questions contact your local Ecotron representative. Your customer’s satisfaction is at stake and the Ecotron® warranty may be void if conditions explained in this manual are not met. Should any statement in this manual conflict with local codes, the codes take precedence. Please contact Ecotron or your local Ecotron representative. Data subject to change without notice. 2 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Contents Ecotron® DK Series Make-up Air Dehumidifiers Dectron Inc., the inventor of Ecotron®, is a company committed to being the absolute best at what they do - providing leading expertise and quality products to customers who need to control high humidity efficiently. Today’s Ecotron® represents years of intensive research and development by a team of highly qualified experts. Dectron has the only large-scale dehumidifier testing and environmental simulation laboratory in the industry. Every Ecotron® model line has been developed in this laboratory, and every customer’s unit is fully factory tested before shipment. The Ecotron® is available in a broad range of standard products for industrial and commercial applications. We also have a team of highly skilled engineering and manufacturing professionals who are dedicated to custom design projects. Page 4 9 Product Description Unit Nameplate Installation Unpacking & Locating Temporary Storage Clearances Location Locate Remote Condenser Ducts Wiring Piping Refrigerant Piping Evacuation & Charging Adding Oil Cooling Fluid Heating Fluid Drain Fuel Gas Startup Contents Supervisaire® Controller Interface Display Address Pre-Startup Adjustments Occupied Periods Clock Adjust Air Flow Condenser Thermostats Flow Rates & Switches Pre-Startup Checklist Enable Operation Set Point Adjustment Read Sensors Expansion Valve Adjustment Startup Report & Warranty Registration Warranty Operation Contents Maintenance Schedule Supervisaire® Controller User Interface Map Set Point Adjustment Read Sensors Start, Stop, Reset Supervisaire® Controller Messages Supervisaire® Diagnostics Sensor Response Curves Isolation Valves 10 10 10 11 14 17 21 32 33 34 35 36 39 40 41 42 44 45 47 48 50 54 56 57 59 60 61 62 67 69 71 72 82 85 86 87 88 89 100 101 Data subject to change without notice. Dectron, Inc. July 2013 3 DK/DKV/RK Series Dehumidifier Owners Manual Product Description DESCRIPTION Make-Up Air Humidity Control The Ecotron® DK/RK Series makeup air dehumidifier is a precision engineered product, finely tuned to the conditions in any application to achieve maximum performance and energy savings. The installation of this state-of-theart equipment must be performed by experienced heating, ventilation and air conditioning (HVAC) factory trained technician. The DK/RK Series is designed to treat make-up air removing moisture and reducing the relative humidity level of the discharge air. In conjunction with proper building design, this helps to reduce high humidity, condensation and their accompanying problems. How the Ecotron® Works In the Ecotron®, warm humid air passes through the dehumidifying coil and is cooled below its dew point, thereby condensing moisture. The heat captured by this process is combined with the heat generated from the compressor power consumption. This recovered heat is then partially used to reheat the air. The excess heat is then rejected to an air-cooled or water-cooled condenser. The DK Series: Δ Removes moisture efficiently over a wide range of entering air conditions. Δ Reduces the running time of the main air conditioning system, saving energy and operating and maintenance costs. Δ Supplies treated outdoor air as required by ventilation codes. Δ Helps improve product/process quality. Δ Helps reduce building repair and production maintenance costs. Δ Dehumidifies even when cooling is not required. Δ Pressurizes the facility to prevent infiltration of untreated air. Δ Helps provide a comfortably dry working environment. Δ Contributes to space cooling. Δ Can be installed indoors or out doors (rooftop model). Δ Can be added to existing air conditioning systems without complicated tie-ins. Δ Uses state-of-the-art heavy duty scroll compressor technology for reliability and energy savings. Δ Is constructed with a unique modular coil design which permits custom designs at lower cost. Δ Low silhouette evaporators for maximum moisture removal. DK Series - Customized for Every Project The DK Series units offer solutions for a broad range of humidity control applications (see Applications). To provide the best product at a competitive price, Dectron has used a modular approach to the design of the DK Series. Each DK unit is customized for a particular project. By drawing on a stock of modular components including coils, enclosures and other key submodules, Dectron can rapidly respond to customer requests for make-up air treatment. In addition Dectron has a Custom Division, staffed by a team of highly skilled engineering and manufacturing professionals who are dedicated to full custom design projects. No matter what the requirements Dectron has the system solution . . . wherever humidity control is critical. Contact your local Ecotron representative for more information on Ecotron® DK Series. The DK Series has been designed to provide the flexibility to handle the extremely wide range of input air conditions that can be expected when using make-up air. When properly installed according to instructions, the Ecotron® will give years of trouble-free operation. Data subject to change without notice. 4 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier How the Ecotron® Works In the Ecotron®, warm humid air passes through the dehumidifying coil and is cooled below its dew point, thereby condensing moisture. The heat captured by this process is combined with the heat generated from the compressor power consumption. This recovered heat is then available for recycling back to the supply airstream, contributing to space heating. The DK unit is also capable of rejecting this heat to an air-cooled (optional) or water-cooled (optional) condenser, resulting in space cooling. When properly installed according to Ecotron’s instructions, the Ecotron® will give years of trouble-free operation. Ecotron® dehumidifiers feature standard microprocessor control. For the owner this means precise automatic control, high reliability, and ease-ofuse. For the installer and service person this means simpler installation and startup and built-in diagnostics and troubleshooting in the unlikely event that service is required. DESCRIPTION Product description Horizontal Configuration The DK/RK Series Features: Δ Standard operator panel Δ Δ Δ Δ Δ Energy efficiency Little maintenance required Simple operation Simple installation The basic DK/RK series Ecotron® units offer dehumidification of building air. The optional cooling mode offers space cooling. Δ An optional hot-water heating system is available to make use of a building boiler system for heating. This factory modification must be ordered at time of Vertical Configuration purchase. Δ Ecotron® DK/RK series units are supplied with heat exchangers, air filter(s), and all controls. Δ An optional outdoor-air intake system includes an automatic damper to stop the outdoor-air flow during unoccupied periods. Δ A microprocessor control system automatically Δ Energy consumption determines the proper operating mode, based on conThe Ecotron® DK/RK series offers a temperature and ditions and occupation. A simple connection to buildhumidity monitoring system that insures the unit is ing management systems is available. working only as necessary. Data subject to change without notice. Dectron, Inc. July 2013 5 DK/DKV/RK Series Dehumidifier Owners Manual Product Description Major Options DESCRIPTION Basic DK/RK series unit A built-in clock may control the intake of outdoor air to occupied periods only. reheat coil supply air supply blower outdoor air The basic DK/RK series unit controls the humidity of the outdoor air delivered to the space. When dehumidification is required, the evaporator chills the incoming air to remove moisture. Heat is returned to the air stream after the dehumidification. evaporator DK/RK Series unit with Air-Cooled Cooling Option supply air reheat coil outdoor air With Air-Cooled Cooling Option, the DK/RK series unit is able to dehumidify and cool the delivered outdoor air. The heat removed can be put back into the airstream, as with a basic unit, or it can be delivered to a remote air-cooled heat exchanger. remote condenser supply blower evaporator DK/RK series unit with Fluid-Cooled Cooling Option supply air outdoor air With Fluid-Cooled Cooling Option, the DK/RK series unit is able to dehumidify and cool the delivered outdoor air. The heat removed can be put back into the airstream, as with a basic unit, or it can be delivered to an internal heat exchanger and thus to a flow of water or other fluid by others. reheat coil evaporator supply blower heat-sink fluid Data subject to change without notice. 6 Dectron, Inc. July 2013 DK/DKV/RK Series Dehumidifier Major Options Product Description DK/RK Series unit with DryCooler Cooling Option supply air reheat coil outdoor air With DryCooler Cooling Option, the DK/RK series unit is able to dehumidify and cool the delivered outdoor air. The heat removed can be put back into the airstream, as with a basic unit, or it can be delivered to a remote air-cooled heat exchanger via a flow of glycol solution. DryCooler evaporator DK/RK Series unit with Variable-Reheat Option remote condenser supply air reheat coil outdoor air Variable reheat is available as an adjunct to a cooling option. The heat removed can be put back into the airstream in variable amounts, with the remainder delivered to a cooling heat exchanger. supply blower evaporator DK/RK Series unit with Fluid-Source/Sink Heat-Pump Option supply air reheat coil outdoor air Heat rejected from the dehumidification or cooling processes is delivered to a stream of water or other fluid. For air heating, the refrigeration system can be reversed to move heat from the stream of water or other fluid into the air stream. supply blower evaporator/ condenser supply blower evaporator/ condenser heat-source fluid Data subject to change without notice. Dectron, Inc. July 2013 7 DESCRIPTION Owners Manual DK/DKV/RK Series Dehumidifier Owners Manual Product Description Major Options DESCRIPTION DK/RK Series unit with Heating Option reheat coil supply blower outdoor air With Heating Option, the DK/RK series unit is able to heat incoming outdoor air with electric heaters, with a hot-water (by others) heat exchanger, with a steam (by others) heat exchanger, with a gas boiler via a pumped-glycol solution, or with an indirect gas-fired furnace. evaporator exhaust air supply air With Enthalpy-Wheel Option, the DK/RK series unit is able to transfer heat and moisture between the incoming outdoor-air stream and the exhaust-air stream, thus saving energy. exhaust blower outdoor air DK/RK Series unit with Enthalpy-Wheel Option wheel reheat coil evaporator supply blower Data subject to change without notice. 8 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Product Description DESCRIPTION Special Operating Sequence CSA and ETL Label Model Nomenclature: ixx-sss-vv D = indoor cabinet R = outdoor cabinet KH = 100% outdoor air dehumidifier with horizontal cabinet KV = 100% outdoor air dehumidifier with vertical cabinet nominal moisture removal capacity in lbs./hr. 2 = 208V 3 = 230V 4 = 208-230V 5 = 208-230V 6 = 230V 7 = 460V 8 = 575V 9 = 208V B = 380V C = 416V V = 220V 1Φ 1Φ 1Φ 3Φ 3Φ 3Φ 3Φ 3Φ 3Φ 3Φ 3Φ 60Hz 60Hz 60Hz 60Hz 60Hz 60Hz 60Hz 60Hz 50Hz 60Hz 50Hz Name plate on corner Horizontal Indoor Unit Name plate on corner spar or inside weather door DRY-O-TRON ® If assistance is needed, have model, serial number, and Ref. number before calling. MODEL #: SERIAL #: REF. #: I.D. Important branch circuit information D 460 V ac, 3 ph, 60 Hz ELECTRICAL RATING COMPRESSOR LRA RLA COMPRESSOR LRA RLA COMPRESSOR LRA RLA COMPRESSOR LRA RLA BLOWER MOTOR HP FLA BLOWER MOTOR HP FLA BLOWER MOTOR HP FLA COND. FAN MOTOR HP FLA COND. FAN MOTOR HP FLA PUMP MOTOR HP FLA ENTHALPY MOTOR HP FLA ELECTRIC HEATER kW A Outdoor Unit Component specifications. Name plate on corner 1 PH Vertical Indoor Unit Max. L.A.T. (°F) SERVICE POWER SPACE HEATING COIL PSIG Max. Replace with belt of same type and size when necessary. MCA A 15 MAX. FUSE/CKT. BKR.* A *(HACR type per NEC) R-22 FACTORY CHARGE lbs R-22 TOTAL SYSTEM CHARGE lbs AIR VOLUME CFM BELT SIZE WIRING DIAGRAM AIR TEMP. °F R.H. % MAX. LENGTH OF REF. LINES (ONE WAY) BETWEEN D.O.T. & REMOTE CONDENSER: ft LINE SIZE: AIR COOLED COND. MODEL #: For units with air-cooled air conditioning, subtract the amount given by “R-22 Factory Charge” from the amount given by “R-22 Total System Charge”. The difference must be added to the Ecotron® at installation. See Installation - Piping - Refrigerant. This amount of refrigerant is supplied by others. HOT GAS: in LIQUID: in REFRIGERANT DESIGN PRESSURES: HIGH/LOW 300/150 PSIG For units with air-cooled air-conditioning, the tubes connecting the Ecotron® to the remote condenser must be exactly as shown here. Consult Dectron before exceeding the maximum length of tube or changing the tube diameters. COMFORMS TO ANSI/UL STD 1995 CERTIFIED TO STD CAN/CSA- 50379 C22.2 NO. 236 FABRIQUÉ AU CANADA / MADE IN CANADA Nameplate specifications supersede any other specifications or statements found in this manual. Data subject to change without notice. Dectron, Inc. July 2013 9 DK/DKV/RK Series Dehumidifier Installation Unpacking and Locating INSTALLATION Important! Inspect your unit immediately for shipping damage. Claims for shipping damage must be made with the shipping company. Ecotron is not responsible for shipping damage. Your unit has been factory tested for proper operation. Inspect the unit carefully upon arrival. Notify the carrier immediately if shipping damage is suspected. If internal damage is suspected, indicate “contingent on internal inspection” when signing for the shipment. Keep copies of all documents, including photographs of any damage. Δ Storage It is best not to store your Ecotron® for long periods. If it must be stored, both indoor and outdoor units should be stored indoors in a space that is safe from accidental damage or vandalism. Where more than one Ecotron® units are stored together, maintain proper inventory identification since each Ecotron® is designed to a particular job specification. Minimum Service Accessa ft (m) Size 1 010 - 030 Owners Manual 2 (0.6) 040 - 060 Δ Unpacking On a level surface, remove external crating materials. Remove any fasteners securing the unit to the freight skid. Important! Locate your unit where it will be protected from damage. Allow adequate space for service. (See below.) Care must be taken to separate any fresh air intake from sources of contamination, such as drain vents and burner flues. Δ Select a suitable location for the unit, where the unit will not be subject to damage. • The heat exchangers of watercooled units must be protected from freezing, including during electric power failures. • The recommended minimum room temperature for operation of vertical units is 70°F (21°C). • Allow service access clearances as shown in the diagrams below. • Additional requirements may apply to units with combustion devices. See the appropriate manual appendix. Δ Mechanical Room Adequate space MUST be planned in advance for the mechanical room and duct work. If inadequate space is provided, then ductwork cannot be properly installed and the system will not function satisfactorily. Service access to the equipment is also very important for everything from air-filter replacement to maintenance and service checks. Δ Minimum Temperature All indoor units must be installed in a room with a minimum temperature of 65°F (18°C) for reliable refrigerant feed. Minimum Service Accessa ft (m) 2 3 4 3b (1) 3b (1) 2 (0.6) 3 (1) 3 (1) 3 (1) 3 (1) 080 and larger 5 (1.5) 3b (1) 4 (1.2) 3 (1) a - all access doors must be able to open to at least 90°. b - (Canada) 1 meter (USA) 36 inches for 0 to 150 volts to ground, 42 inches for more than 150V to ground, or per NEC Table 110-26, whichever is greater. 4 1 2 All sizes 3b (1) 2 (.6) a - access doors must be able to open to at least 90°. b - (Canada) 1 meter (USA) 36 inches for 0 to 150volts to ground, 42 inches for more than 150V to ground, or per NEC Table 110-26, whichever is greater. Minimum lengths of straight duct apply. See Installation - Ducts Vertical unit Minimum lengths of straight duct apply. See Installation - Ducts. 1 L Horizontal unit AC C DO ESS OR 1 ICA TR EC EL SS R O DO CE AC AC C DO ESS OR OIL &C ER OR OW DO BL ESS C AC L AC C DO ESS OR ICA TR EC EL S S CE AC R O DO AC C DO ESS OR 2 (electrical enclosure position may vary) OR SS RE OR MP S DO O C ES C AC 2 1 Data subject to change without notice. 10 Dectron, Inc. July 2013 DK/DKV/RK Series Dehumidifier Unpacking and Locating INSTALLATION ry . pl ay ut Sa Ecotron ® DRY-O-TRON va e 10 ft m Exclusion zone for exhausts of other equipment Cooling Tower BOILER • For outdoor units with hooded air intakes allow at least 3 feet (1 meter) of clear space around the hood for smooth intake air flow. • Intake air hoods should be suitably separated from such sources of contamination as drain vents and burner flues. See appropriate codes and standards. • Do not locate the unit in such a way that the exhaust from a cooling tower or other machinery will be drawn into its intake. Installation m Owners Manual La yo 10 ft • Do not locate the unit in such a way that the exhaust from a building will be drawn into its intake. Ecotron® va r e pl m Sa La yo ut 10 ft m ay Ecotron® y. Exclusion zone for intakes of other equipment, where the Ecotron® is equipped with a combustion device BOILER For units equipped with gas boilers or gas furnaces, • do not locate other machinery in such a way that combustion products will be drawn into them • do not locate building-ventilation intakes in such a way that combustion products will be drawn into them. Data subject to change without notice. Dectron, Inc. July 2013 11 DK/DKV/RK Series Dehumidifier Owners Manual Installation Unpacking and Locating Sound and Vibration Elimination Install anti-vibration springs or pads such as machinery cork, rubber pads or other approved isolation materials to isolate the Ecotron® from the supporting structure (see drawing at right). INSTALLATION IMPORTANT! Do not mount the unit on a plywood sheet or any other material that will resonate. Install flexible duct to all duct connections of the Ecotron® to prevent sound and vibration transmission. Use aerofoil-type turning vanes on all elbows. Elbows and acoustic insulation can be used to further reduce noise where necessary. See Installation - Unit-Duct Connections. Condensate Drain Connection Allow a minimum 12-inch clearance for the bottom drain connection. A P-trap must be installed and filled with water to prevent air from entering the Ecotron® (which is under negative pressure) and to assure proper drainage of the condensate. Failure to do so will cause the drain pan to overflow. On vertical units, the internal P-trap is factory-installed. Ecotron ENCLOSURE BASE ENCLOSURE BASE ENCLOSURE BASE ANTI-VIBRATION PAD ANTI-VIBRATION PAD STRUCTURAL IRON SUPPORT STRUCTURAL IRON SUPPORT NEVER SUPPORT AN Ecotron® ON PLYWOOD. ENCLOSURE BASE DRAIN PAN INSULATION INSULATION STRAINER 1 1/2" SINK TYPE Use any pipe or tube suitable for the amount of condensate. Schedule 40 PVC or ABS plastic pipe is frequently used. Slope the condensate drain line at least 1/4 inch per foot. The drain line must discharge through an air gap to a vented open pipe. Horizontal units only P-traps in vertical units are internal ALLOW MINIMUM 12 IN CLEARANCE P-TRAP (BY OTHERS) Pour at least one gallon of clean water into the evaporator drain pan to fill the P-trap and to test the drain for leaks. If no leaks are found, initial the check list in Start-up - Pre-startup Checklist. Data subject to change without notice. 12 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Unpacking and Locating Installation Lifting C O Sa N m M ST AY R pl U e VA CT RY IO . N INSTALLATION Some units may be provided with lifting eyes. Where this is the case, lift only with the lifting eyes. Note: The lifting eyes are integral to the unit. Cables, chains, shackles, clevises, pads, frames, hoists, tensioners, etc., are by others. Note: Spreaders and frames are essential to prevent excess force on the lifting eyes and to prevent crushing of the cabinet. Note: It is imperative that the base of the unit not be allowed to bend or twist. Use take-ups to keep the base straight. Note: Use pads and/or blocks to prevent cabinet damage. Note: Some units may require the placement of drains or pads before placing the unit. See Isolators and Drains. pads and/or blocks lifting eyes Note: quantity and location may vary. Data subject to change without notice. Dectron, Inc. July 2013 13 DK/DKV/RK Series Dehumidifier Installation Owners Manual Condenser Unpacking and Locating Units with Air Conditioning Option Only. Some units may have a DryCooler rather than a remote condenser. In that case, please refer to the DryCooler appendix. Caution: Do not handle the condenser with a forklift - the heat exchanger may be damaged. Caution: Be very careful not to bend or damage the exposed heat-exchanger fins. 1. Unload from the truck with chains hooked to the eyes of all the lifting brackets on top, as shown at right. 2. Carefully set the condenser on wooden blocks on level ground. 3. Locate the remaining legs and associated hardware, included. 4. Attach all the legs. 5. Change the rigging to the outboard lifting eyes. Carefully tilt the condenser over onto its legs. Be very careful not to damage the exposed heat-exchanger fins. Before lowering the condenser, be sure the legs will not be bent. 6. Attach the remaining lifting brackets. 7. Using spreader bars (by others) and the outboard eyes of all lifting brackets, lift to final location. Maintain chain/cable tensions to prevent bending or bowing of the condenser. Beams, bars, cables, chains, etc. are by others. N br um Sa ac be m ke r ts of ple m leg ay s va an ry d . INSTALLATION 2. For horizontal air-flow units, lift to final location. For vertical air-flow units, continue with steps below. N br um Sa ac be m ke r ts of ple m leg ay s va an ry d . If you suspect the unit was damaged in transit, immediately notify the freight carrier and file a claim with the carrier. Lift evenly using all lifting eyes. Do not allow bending or bowing of the condenser. Data subject to change without notice. 14 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Locate Remote Condenser Installation Vertical Air-Flow Units DRY-O-TRON ® MODEL #: SERIAL #: D I.D. 460 V ac, 3 ph, 60 Hz ELECTRICAL RATING COMPRESSOR LRA COMPRESSOR RLA LRA RLA COMPRESSOR LRA RLA COMPRESSOR LRA RLA BLOWER MOTOR HP FLA BLOWER MOTOR HP FLA BLOWER MOTOR HP FLA COND. FAN MOTOR HP FLA COND. FAN MOTOR HP FLA PUMP MOTOR ENTHALPY MOTOR ELECTRIC HEATER HP FLA HP FLA kW A Max. L.A.T. (°F) SERVICE POWER SPACE HEATING COIL PSIG Max. MCA A 15 MAX. FUSE/CKT. BKR.* A *(HACR type per NEC) R-22 FACTORY CHARGE lbs AIR VOLUME CFM BELT SIZE WIRING DIAGRAM REFRIGERANT DESIGN PRESSURES: HIGH/LOW 300/150 PSIG 50379 COMFORMS TO ANSI/UL STD 1995 CERTIFIED TO STD CAN/CSAC22.2 NO. 236 LR 45671 FABRIQUÉ AU CANADA / MADE IN CANADA REF.: POOL # 1: E.W.T.: ft² POOL # 3: °F E.W.T.: ft² POOL # 4: E.W.T.: °F E.W.T.: AIR TEMP.: °F R.H.: POOL # 2: ft² °F ft² °F % R-22 TOTAL SYSTEM CHARGE: lbs OIL TO BE ADDED AT START-UP: oz OIL TYPE: MAX. LENGTH OF REF. LINES (ONE WAY) BETWEEN D.O.T. & REMOTE CONDENSER: ft LINE SIZE: AIR COOLED COND. MODEL #: HOT GAS: in LIQUID: in INSTALLATION The length of the tubes connecting the remote air-cooled condenser to the Ecotron® must not exceed that shown on the Ecotron® nameplate (See Product Description - Unit Nameplate.) Select a suitable location for the condenser, where (a) it will not be subject to damage from traffic, falling ice, or vandalism, (b) it will not be in the vicinity of steam, hot air, or fume exhausts, and (c) where hot air from the condenser will not be drawn into the Ecotron®, and (d) where air flow will not be impeded by accumulations of ice and snow. Any supporting structure must be suitable for the weight of the condenser. Allow at least twice the width of the condenser fan of clear space around the condenser for smooth intake air flow and service accessibility. Spacing requirements are also subject to applicable electrical codes. Allow at least 10 feet (3 meters) of open space above the unit for exhaust air flow. The condenser should be mounted level to within ¼ bubble. Shim as necessary. The condenser legs should be bolted to the supporting structure. Note 1: The clearance in front of the electrical enclosure must be the greatest of: a) twice the width of a fan, or b) (Canada) the greater of 1 meter or the distance specified by CEC 2-238, or c) (U.S) the greater of 36 inches for supply voltage no more than 150V to ground (e.g. 230V condensers), or 42 inches for supply voltage above 150V to ground (e.g. 460V condensers), or the distance specified by NEC 110-26, or d) the distance specified by other applicable code. Top View any overhanging obstruction 2W Side View 2W C 2W S W O a N m M ST pl AY R U e VA CT s RY IO . N Note 1 minimum 10 ft (3 m) The condenser should not be enclosed within a solid fence or wall, since such structures promote recirculation of air. If a solid fence or wall must be installed, it must be no closer to the condenser than “2W” (twice the width of the condenser fan) shown above, and must not extend lower than 12 inches (30 cm) above grade. Fences lower than 12 inches above grade may cause recirculation of heated air and a corresponding reduction in performance. Vegetation under a fence must be kept short. Never stack two or more vertical air flow condensers. minimum 12 in. (30 cm) Data subject to change without notice. Dectron, Inc. July 2013 15 DK/DKV/RK Series Dehumidifier Owners Manual Installation Locate Remote Condenser Horizontal Air Flow Units DRY-O-TRON ® MODEL #: The length of the tubes connecting the remote air-cooled condenser to the Ecotron® must not exceed that shown on the Ecotron® nameplate (See Product Description - Unit Nameplate.) Select a suitable location for the condenser, where (a) it will not be subject to damage from traffic, falling ice, or vandalism, (b) it will not be in the vicinity of steam, hot air, or fume exhausts, and (c) where hot air from the ocndenser will not be drawn into the Ecotron®, and (d) where air flow will not be restricted. Any supporting structure must be suitable for the weight of the condenser. Allow clear space as shown below. Spacing requirements are also subject to applicable electrical codes. Do not point the fans of a horizontal air-flow condenser within 60° of the direction of the prevailing wind. The condenser should be mounted level to within ¼ bubble. Shim as necessary. The condenser should be bolted to the supporting structure. SERIAL #: D I.D. 460 V ac, 3 ph, 60 Hz ELECTRICAL RATING COMPRESSOR LRA COMPRESSOR RLA LRA RLA COMPRESSOR LRA RLA COMPRESSOR LRA RLA BLOWER MOTOR HP FLA BLOWER MOTOR HP FLA BLOWER MOTOR HP FLA COND. FAN MOTOR COND. FAN MOTOR PUMP MOTOR HP FLA HP FLA HP ENTHALPY MOTOR FLA HP ELECTRIC HEATER FLA kW A Max. L.A.T. (°F) SERVICE POWER SPACE HEATING COIL PSIG Max. MCA A 15 MAX. FUSE/CKT. BKR.* A *(HACR type per NEC) R-22 FACTORY CHARGE lbs AIR VOLUME CFM BELT SIZE WIRING DIAGRAM REFRIGERANT DESIGN PRESSURES: HIGH/LOW 300/150 PSIG 50379 COMFORMS TO ANSI/UL STD 1995 CERTIFIED TO STD CAN/CSAC22.2 NO. 236 LR 45671 FABRIQUÉ AU CANADA / MADE IN CANADA REF.: POOL # 1: E.W.T.: ft² POOL # 3: °F E.W.T.: ft² POOL # 4: E.W.T.: °F E.W.T.: AIR TEMP.: °F R.H.: POOL # 2: ft² °F ft² °F % lbs R-22 TOTAL SYSTEM CHARGE: oz OIL TO BE ADDED AT START-UP: OIL TYPE: MAX. LENGTH OF REF. LINES (ONE WAY) BETWEEN D.O.T. & REMOTE CONDENSER: ft LINE SIZE: AIR COOLED COND. MODEL #: W 3W 3W = three times the width of the fan C Sa 2W = twice the width of the fan minimum 10 ft (3 m) O N m M ST p AY R U les VA CT RY IO . N 2W any obstruction W any adjacent structure minimum 10 ft (3 m) Note 1 Side View of Dual Fan Row Condenser Note 1 Side View of Single Fan Row Condenser any obstruction INSTALLATION Note 1: The clearance in front of the electrical enclosure must be the greatest of: a) (Canada) the greater of 1 meter or the distance specified by CEC 2-238, or b) (U.S) the greater of 36 inches for supply voltage no more than 150V to ground (e.g. 230V condensers), or 42 inches for supply voltage above 150V to ground (e.g. 460V condensers), or the distance specified by NEC 110-26, or c) the distance specified by other applicable code. The condenser should not be enclosed within a solid fence or wall, since such structures promote recirculation of air. If a solid fence or wall must be installed, it must not extend lower than 12 inches (30 cm) above grade. Fences lower than 12 inches above grade may cause recirculation of heated air and a corresponding reduction in performance. Vegetation under a fence must be kept short. Never place a horizontal air flow condenser behind another one. minimum 12 in. (30 cm) Data subject to change without notice. 16 Dectron, Inc. July 2013 HOT GAS: in LIQUID: in Owners Manual DK/DKV/RK Series Dehumidifier Ducting Setup IMPORTANT: The shape and size of the ducts is very important, especially the parts that connect to the unit. The following recommendations are based on industry standards, and apply to all air-moving machinery. Δ Duct design must conform to the ASHRAE low-pressure, low-velocity duct standards. If there is a question concerning duct design, sizing, choice of materials, air velocities, or static pressures contact Dectron for assistance. Air velocities should be kept low to allow good air movement and low noise. Higher static pressures result in higher power requirements and increased noise. The maximum external static pressure is specified for each unit. Static pressures higher than specified may reduce air flow below the minimum acceptable value. Select grilles, registers, and diffusers for low static pressure loss, required throw, and specified air flow. The Ecotron® is suitable for use with any duct material, subject to the requirements of this section and standard practice. Standard galvanized steel duct is recommended. Where located in areas below room temperature, ductwork must be insulated on the outside with 2- inch fiberglass wrap with FSK facing. All ducts must be designed to be dry. All seams must be sealed. If a below-grade duct system is used, transite or PVC-coated, round metal ductwork should be used. Δ Flexible duct connectors Use flexible duct connectors to attach the ducts to the Ecotron®. Install the flexible duct in such a way as to prevent mechanical loads from being applied to the unit, and to prevent unit vibration from being transmitted to the ductwork. Δ Some units may have dampers to close off one or more ducts. Use care to assemble ducts so that these dampers will not be obstructed. The hoods over the outdoor-air instakes and exhaust-air ports of outdoor units must be assembled to allow proper damper movement. Intake Duct Indoor units will have intake ducts. Poor intake-duct design can prevent proper dehumidification by causing uneven air distribution over the evaporator. Reduced capacity and/or equipment damage may result. It is very important to allow straight length in the return duct as shown. There should be no elbows, transitions, offsets, or other flow interruptions closer than 2.5 X WIDTH of the return duct opening. If turning vanes are not used in elbows, allow a length of straight duct equal to at least 5 X WIDTH. The straight length is not required for units with side, top, or bottom return-air connections. Horizontal Unit Vertical Unit WI WIDTH DT H TH X 2.5 H IDT WID 2.5 XW Duct Isolator Duct Isolator Turning Vanes Turning Vanes Data subject to change without notice. Dectron, Inc. July 2013 17 INSTALLATION Δ Duct material DK/DKV/RK Series Dehumidifier Owners Manual Installation Supply Duct Refer to AMCA1 guidelines for system-effect considerations. Ducting Horizontal Unit Where duct is to be insulated, insulate the outside of the duct only. To prevent an unexpected reduction of airflow, allow a section of straight duct with a length five times the blower width leaving the Ecotron®. There should be no elbows, transitions, offsets, duct heaters, or other flow interruptions closer that five times the width of the blower. On special order, Ecotron may be able to provide bottom, top, or side discharge blowers. On special order, Ecotron may be able to offer reversed blower rotation. Vertical Unit Elbow, tee, etc. W ID TH 5 X WIDTH INSTALLATION Duct Isolator Duct Isolator Some units may have dampers to close off one or more ducts. Use care to assemble ducts so that these dampers will not be obstructed. The hoods over the outdoor-air instakes and exhaust-air ports of outdoor units must be assembled to allow proper damper movement. 1. Air Movement and Control Association International, Inc. 30 West University Drive Arlington Heights, Illinois 60004-1893 Data subject to change without notice. 18 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Ducting Installation Duct Heater Horizontal Unit Duct Isolator INSTALLATION Some units may have external duct heaters (by others). It is important to locate the heater at least five times the duct width away from the blower or any air flow interruptions such as elbows and transitions. Failure to allow sufficient separation may result in a) inadequate room heating due to cycling the heater’s over-temperature protection, b) hot spots in the heater, leading to eventual failure c) immediate failure. External heaters installed by Dectron are specially designed for close coupling to the blower. Vertical Unit TH ID W 5 X WIDTH Duct Heater (by others) Duct Isolator Data subject to change without notice. Dectron, Inc. July 2013 19 DK/DKV/RK Series Dehumidifier Installation Owners Manual Ducting Standard Practice 2.5 W or more RETURN DUCT W WRONG RIGHT Turning Vanes The air will not be evenly distributed over the evaporator. Vanes and straight length allow air to flow evenly. Always install vibration isolator. Always install vibration isolator. RETURN DUCT INSTALLATION RIGHT WRONG The air will not be evenly distributed over the evaporator. Vanes and straight length allow air to flow evenly. Turning Vanes 20° or less 30° or more WRONG RIGHT Air cannot follow this steep angle. Air can follow this transition. SUPPLY DUCT Always install flexible duct connection. 5W or more W WRONG RIGHT Reduction of airflow will result from the elbow being too close. Sufficient straight length allows proper air flow. Flexible duct connection absorbs vibration. Interior Surface Temperatures to Prevent Condensation Operating Condition Minimum Surface Temperature °F (Room Dew Point °F) Relative Humidity % 40 50 60 Room Dry Bulb Temperature °F 72 76 80 51 57 62 59 65 70 (46) (52) (57) 55 61 66 (50) (56) (61) 84 (54) (60) (65) 62 68 73 88 (57) (63) (68) 65 72 77 (60) (67) (72) Data subject to change without notice. 20 Dectron, Inc. July 2013 Owners Manual Field Wiring Diagram DK/DKV/RK Series Dehumidifier Wiring Installation Each Ecotron® has an associated field wiring diagram, included with the original documents. Details of each connection are shown on the following pages. SA MP ON LE LY INSTALLATION Heating valve Use care in wiring a heating valve. See Installation Wiring - Control Signals. Condenser control wire size (AWG) length Number of condenser fans (ft) 1 2 3 4 5 6 10 20 20 20 20 20 18 20 20 20 20 20 18 14 30 20 20 20 20 18 14 40 20 20 20 18 16 12 50 20 20 20 18 14 10 60 20 20 20 16 14 10 70 20 20 18 16 14 10 80 20 20 18 16 12 10 90 20 20 18 16 12 10 100 20 20 18 14 12 10 110 20 20 16 14 12 10 Data subject to change without notice. Dectron, Inc. July 2013 21 DK/DKV/RK Series Dehumidifier Installation No field wiring of Ecotron® internal circuits is necessary. Only power and remote-control circuits are completed in the field. Important! Use only copper wire to connect the unit. The power input lugs are not sized for use with other wire. For units with factory supplied disconnects, follow instructions inside the disconnect. Important! INSTALLATION Ground the unit using the grounding lug provided. Important! Always cover the electrical components with plastic before drilling or sawing the electrical enclosure. Do not allow metal chips to fall into the enclosure. Important! For units with air-cooled air conditioning, refer to the remote condenser manual. Owners Manual Wiring Power Important! Δ Insure phase voltage For units with air-cooled air conditioning, wire the remote condenser according to the wiring diagram provided with it. Insure that the fan motors turn in the correct direction. The Ecotron® complies with NEMA MG-1 and other standards for applied voltage. The applied voltage should be within ±10% of the nominal voltage shown on the nameplate. See ANSI C84.1. Phase voltages must be balanced within 2%. Δ Use properly sized wire Refer to the unit nameplate for electrical ratings. Size wire according to applicable codes, with allowance for voltage drops. Unit terminal voltage should be nominal ±10% under all conditions, including compressor starting. Δ 208V units A 230V Ecotron® is designed to run on 208V also. In this case it is necessary to select the 208V primary tap on the control transformers. See the wiring diagram for the unit. A minimum of 187V is required for compressor starting (see NEMA MG-1). Δ Insure phase sequence All the motors in the unit are connected for the same phase sequence. Be sure the phase sequence is correct before completing the installation. NOTE: The blower running direction can be used to test phase sequence. Δ Service power The Ecotron® may be provided with service lights which require a separate 115VAC 15A 60Hz branch circuit. Wire this branch circuit to the service branch circuit input lugs. Use only copper wire. Connect input power here. Use copper wire only. Torque all connectors per NEC 110-14 or relevant code. For units with the optional economizer (return blower present), install a conduit seal. For units with factory-installed disconnects, connect power to the disconnect switch using the instructions in the switch. ON Turn on the branch-circuit disconnect switch. In some cases the blower may start. Some Ecotron® units may have voltage monitors that prevent operation in the event the branch circuit has voltage that is too high, too low, has lost a phase, or has reversed phase sequence. If the green LED is not lit, confirm that the applied voltage is within ±10% of the nameplate voltage (NEMA MG-1), that all three phases are present, and that the phase sequence is correct. 10 110 5 105 115 Vmax (%Ue) 15 0.1 20 Delay (sec) 10 85 90 95 80 Vmin (%Ue) 5 15 0.1 20 Delay (sec) 10 5 15 0.1 Ue (VAC) 20 Delay (sec) Data subject to change without notice. 22 Dectron, Inc. July 2013 Wiring nit terminal 52 switch closes to enable air cooled condenser Condenser control wire size (AWG) In some cases temperature switches inside the remote condenser may have to be adjusted. See Setup Adjustments. Ecotron® terminal 225 nit to second-stage space to first-stage space heaters (by others) heaters (by others) Some installations may use space heaters provided by others. In this case the space heater controls must be wired to the Ecotron® controls (see unit field-wiring diagram in unit information package). The installer must arrange the connections so that a dry-contact switch-closure in the Ecotron® will enable the space heater. When the dry contacts are open, the space heater should be disabled. The Ecotron® dry contacts are rated 5A at 24VAC 60Hz. Do not overload these outputs. Do not attempt to use an internal Ecotron® power source unless so directed by Dectron. terminal 51 wire length Number of fan contactors (ft) 1 2 3 4 5 6 10 20 20 20 20 20 18 20 20 20 20 20 18 14 30 20 20 20 20 18 14 40 20 20 20 18 16 12 50 20 20 20 18 14 10 60 20 20 20 16 14 10 70 20 20 18 16 14 10 80 20 20 18 16 12 10 90 20 20 18 16 12 10 100 20 20 18 14 12 10 110 20 20 16 14 12 10 In some cases the size of the control wire may have to be increased to allow for contactor inrush. See the chart at right. Alternatively, a pilot relay (by others) may be installed. EXTERNAL SPACE HEATERS (by others) Us wir e ter SA ing min M dia al n PL gra um E m. be rs in u Some Ecotron® units may be provided with air- cooled air conditioning. In this case the remote air cooled condenser controls must be wired to the Ecotron® controls (see unit wiring diagram). The remote condenser has its own power supply so there is a dry contact switch closure to enable the remote condenser. The Ecotron® dry contacts are rated 5A at 24VAC 60Hz. Do not overload these outputs. Do not attempt to use an internal Ecotron® power source unless so directed by Dectron. Ecotron® Us wir e ter SA ing min M dia al n PL gra um E m. be rs in u REMOTE CONDENSER or DryCooler (Ecotron® units with air-cooled air conditioning option only) Installation to remote air cooled condenser Control Signals DK/DKV/RK Series Dehumidifier INSTALLATION Owners Manual terminal 226 switch closes to enable firststage space heater terminal 227 terminal 228 switch closes to enable secondstage space heater Similar circuits are used for any other space heaters. See the unit field wiring diagram in the unit information package. Data subject to change without notice. Dectron, Inc. July 2013 23 DK/DKV/RK Series Dehumidifier Wiring Some units may have water-cooled air conditioning. Of these, some units have built-in flow sensors and others may require field-installation of flow sensors. Where field installtion is required, remove the jumper from the terminals indicated in the unit wiring diagram, and replace it with the isolated contacts of the flow (pressure) switch provided. The contacts (by others) should be closed when the water flow is correct. FIRESTAT CONNECTION For units requiring a firestat interlock, remove the jumper between terminals 60 and B16, or as shown on the unit wiring diagram. In the jumper’s place substitute an isolated normally-closed switch closure from the fire alarm (by others). If the fire alarm is triggered, the resulting open circuit between these terminals will cause the Ecotron® to execute an orderly shutdown, including blowers. GENERAL ALARM All Ecotron® units are provided with an output for a general alarm. A dry-contact switch-closure is provided to trigger an alarm (by others) in the event of a condition that prevents the normal operation of the unit. The Ecotron® dry contacts are rated 5A at 24VAC 60Hz. Do not overload these outputs. Do not attempt to use an internal Ecotron® power source unless so directed by Dectron. Us S u n e te r A M it w mi PL irin n a l g d nu E iag mbe ra m rs in . terminal 83 0-10VDC analog signal from Building Management System controls variable heat. 2V = 100% heat 5V = 0% heat Ecotron® Us S un e ter AM it w mi PL irin nal g d nu E iag mbe ram rs in . INSTALLATION WATER FLOW SIGNAL (units with water-cooled air conditioning only) terminal 2 terminal 20 terminal 21 Ecotron® terminal 60 terminal D13 Us S un e ter AM it w mi PL irin nal g d nu E iag mbe ram rs in . Some units may be equipped for water-since heat pump operation. Where this is the case, some units may have provision for variable heating rate controlled by others. In this case, connect a 2-5VDC analog signal as shown. Insure that the signal will always be in the range 2VDC to 5VDC. Note that the heating operation is reversed, i.e. 2V = 100% heat and 5V = 0% heat. Ecotron® Us S un e ter AM it w mi PL irin nal g d nu E iag mbe ram rs in . VARIABLE HEAT CONTROL (units with water-source heat pump only) Control Signals to alarm (by others) Installation Owners Manual Contacts (by others) are closed when adequate flow is present. Firestat or smoke detector switch opens on alarm. Ecotron® terminal 1J27 terminal 1J28 switch closes to enable remote alarm (by others) Data subject to change without notice. 24 Dectron, Inc. July 2013 Wiring Installation SUPPLY BLOWER VARIABLE SPEED CONTROL Ecotron® Some Ecotron® units may have a variable-frequency drive for the supply blower. Where this is the case, and the speed is controlled by others, wire the drive inputs as shown in the unit wiring diagram. Do not apply any voltages other than those specified on the unit wiring diagram. terminal 5 terminal 124 + + 0-10VDC (by others) Increasing voltage increases blower speed. Control Signals DK/DKV/RK Series Dehumidifier Us u n e te r S A it w mi MP irin n a l L g d nu iag mbe E ra m rs in . Owners Manual COMMUNICATION INTERFACE INSTALLATION Some Ecotron® units may have an optional communication interface, such as MMI, Modbus®, LONtalk®, BACnet®, etc. For wiring instructions, please refer to the appropriate Appendix to this manual. Install the outdoor temperature sensor where it will not be damaged and will not be exposed to direct sunlight. terminal J27 terminal J28 Wall 3.8 in (10 cm) 0.9 in (2.3 cm) Temp. Sensor No. 8 Mounting Screw 20 AWG shielded cable 350 ft (106 m) maximum Wall Humidity Sensor terminal 61 terminal 60 terminal J35 No. 8 Mounting Screw 4 x 4 in (10 x10 cm) 2.5 in (6.4 cm) OUT PWR COM INSIDE TERMINALS 20 AWG shielded cable 350 ft (106 m) maximum 1 in (2.5 cm) 1 in (2.5 cm) Some installations may have the (optional) outdoor relativehumidity sensor. For these installations, the sensor may ship uninstalled, and thus must be installed in the field. Select a location as above, preferably near the temperature sensor. Install the sensor vertically as shown. Wire the sensor as shown on the unit field wiring diagram in the unit information package. Route the cable to avoid sources of electrical noise. Ecotron® Us S un e ter AM it w mi PL irin nal g d nu E iag mbe ram rs in . Some installations may have the (optional) remote outdoorair temperature sensor. For these installations, the sensor may ship uninstalled, and thus must be installed in the field. Select a location for the sensor that will be out of direct sunlight or other abnormal temperature conditions such as ventilation exhaust streams. (The north side of a wall is usually convenient.) The sensor must be within 350 ft (106 m) of the unit, and should be installed high enough to be protected against damage or vandalism. Wire the sensor as shown on the unit field-wiring diagram in the unit information package. Route the cable to avoid sources of electrical noise. If an outdoor temperature sensor is unexpectedly connected or disconnected in the field, the controller configuration may have to be changed. Contact Dectron or a Dectron-certified technician. Us S un e ter AM it w mi PL irin nal g d nu E iag mbe ram rs in . OUTDOOR AIR SENSOR Data subject to change without notice. Dectron, Inc. July 2013 25 DK/DKV/RK Series Dehumidifier Installation Owners Manual Wiring Control Signals INDOOR UNITS WITH HOT WATER OR STEAM HEAT ONLY Some installations may have hot water or steam heating systems. In these cases there may be an electrically actuated valve to control the flow of the hot fluid. On indoor units, this valve is located outside the unit cabinet. location of heating valve on indoor units Unit end view INSTALLATION In this case the valve is installed in the field. The actuator must be wired exactly as shown. Failure to follow these instructions exactly may cause permanent damage. Actuator wiring must follow the wiring diagram for your unit. Take care to prevent the application of other voltages to these wires. Ecotron® 5 4 74 Us wir e ter SA ing min M dia al n PL gra um E m. be rs in u nit Water valve actuator wiring PROPORTIONAL VALVE ACTUATOR Blk (1) COMMON Red (2) HOT Wht (3) 2-10VDC CCW CW Data subject to change without notice. 26 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Control Signals Wiring Installation Optional Remote Display The communication system between the controller and the remote display (if any) is based on ANSI/IEEE RS485. For best results, proper RS-485 wiring and splicing methods should be used. These include, but are not limited to the use of shielded RS-485 cable (Z0=120Ω, e.g. Belden 7202A), the use of connectors rated for RS-485, minimized untwist of conductors, etc. In some cases, shorter lengths of cable may allow approximations to RS-485 methods. These methods are shown on the folowing pages. Methods for longer cables will work for shorter cables also. 3-gang wall box (by others) Six-pin modular telephone plug (by others) to be inserted into display jack. J9 J10 NO3 C1 C1 NO1 NO2 GND J12 J11 Expansion Memory INSTALLATION For cable lengths not exceeding 160 ft. (50m), it is possible to use a sixconductor data (reversed) modular telephone cable (by others). See next page for cable details. Communications between the Ecotron® and the remote display can be interrupted by external electrical noise. Such noise can be produced by variable speed motor drives, light dimmers, electric discharge lighting, and other non-linear electrical loads. Rx-/Tx- Insert 6P6C modular telephone plug (by others) into the modular Y (by Dectron). Use the port not already used for the in-unit display (if any). Rx+/Tx+ For cable lengths not exceeding 160 ft (50m) - electrical enclosure of Ecotron® At each end of the cable, loop the modular telephone cable once as shown through clamp-on split ferrite EMI cores (by others). The cores should have an impedance near 240Ω at 100MHz. ex: Steward 28A0640-0A0 available as Digi-Key1 240-2065-ND Allow at least 10 inches of free cable for connection to the display. 1. Digi-Key Corp. 1-800-344-4539 www.digikey.com Data subject to change without notice. Dectron, Inc. July 2013 27 DK/DKV/RK Series Dehumidifier Installation Wiring Owners Manual Control Signals Optional Remote Display Assembling data (reversed) modular telephone cable Note that the lock tabs of the plugs are on opposite sides of the cable. (Colors are for example only, colors may vary by cable vendor.) TOP VIEW INSTALLATION END VIEW END VIEW WHITE WHITE BLACK BLACK RED RED GREEN GREEN YELLOW YELLOW BLUE BLUE SIDE VIEW END VIEW END VIEW BLUE YELLOW RED GREEN WHITE BLACK WHITE RED BLACK GREEN BLUE YELLOW Data subject to change without notice. 28 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Control Signals Wiring Installation Optional Remote Display J9 For cable lengths not exceeding 650 ft (200m) - NO3 C1 NO2 C1 Expansion Memory J10 NO1 GND J11 J12 Modular cable to round cable adapter, (by others), two required Ex: Carel1 TCONN6J000 (shown) Short six-conductor data (reversed) modular telephone cable (by others). See previous page for cable details. Where TCONN6000 (shown) is used, jumpers J14 and J15 must be on pins 1 & 3 as shown. J15 0 1 2 3 4 5 6 WHITE/ORANGE ORANGE/WHITE BLUE/WHITE GREEN/WHITE WHITE/GREEN SHIELD WHITE/BLUE Keep pairs together. Minimize untwist. Minimum 24 AWG copper 3-pair shielded RS-485 cable, Z0 =120Ω ex: Belden3 7202A Maximum length 650 ft (200m) Cable conductor-terminal assignment terminal function cable pair conductor 0 GND SHIELD 1 +VRL (~30Vdc) 1 A 2 GND 1 B 3 Rx/Tx- 2 A 4 Rx/Tx+ 2 B 5 GND 3 A 6 +VRL (~30Vdc) 3 B Where TCONN6000 (shown) is used, jumpers J14 and J15 must be on pins 1 & 3 as shown. SHIELD WHITE/BLUE BLUE/WHITE WHITE/GREEN GREEN/WHITE ORANGE/WHITE WHITE/ORANGE Keep pairs together. Minimize untwist. 6 5 4 3 2 1 0 J14 1. CAREL USA LLC Ph: (717) 664-0500 Fax: (717) 664-0449 www.carelusa.com J15 Short six-conductor data (reversed) modular telephone cable (by others). See previous page for cable details. Allow at least 10 inches of free cable for connection to the display. The six-pin modular telephone plug (by others) is to be inserted into the display jack. 2. USA W.W. Grainger Ph: 1-888-361-8649 www.grainger.com Canada Acklands Grainger Ph. 1-800-668-8989 www.acklandsgrainger.com 3. Belden Ph. 314-854-8000 www.belden.com Data subject to change without notice. Dectron, Inc. July 2013 29 INSTALLATION Ex: Leviton 40276-I, (not shown) available as Grainger2 5C381 J14 Insert 6P6C modular telephone plug (by others) into the modular Y (by Dectron). Use the port not already used for the in-unit display (if any). Rx-/TxRx+/Tx+ Unit Controller DK/DKV/RK Series Dehumidifier Installation Owners Manual Wiring Control Signals Optional Remote Display Keep pair together. Minimize untwist. For cable lengths not exceeding 1640 ft (500m) Consult factory for longer cable requirements. J9 J10 NO3 C1 C1 Expansion Memory Cable conductor-terminal assignment terminal function cable pair conductor DC Power Supply 24 - 30 VDC 150 mA (by others) Insulate shield at this end. Do not connect shield to a terminal. Keep pair together. Minimize untwist. 0 GND 1 +VRL (~30Vdc) 2 GND 3 Rx/Tx- 1 A 4 Rx/Tx+ 1 B 5 6 BLUE SHIELD WHITE INSTALLATION ex: Belden3 7200A Maximum length 1640 ft (500m) NO2 J12 J11 Minimum 24 AWG copper 1-pair shielded RS-485 cable, Z0 =120Ω NO1 GND Rx-/Tx- Rx+/Tx+ WHITE BLUE SHIELD Unit Controller + 6 5 4 3 2 1 0 J14 J15 Short six-conductor data (reversed) modular telephone cable (by others). See previous page for cable details. Allow at least 10 inches of free cable for connection to the display. The six-pin modular telephone plug (by others) is to be inserted into the display jack. 1. CAREL USA LLC Ph: (717) 664-0500 Fax: (717) 664-0449 www.carelusa.com 2. USA W.W. Grainger Ph: 1-888-361-8649 www.grainger.com Canada Acklands Grainger Ph. 1-800-668-8989 www.acklandsgrainger.com 3. Belden Ph. 314-854-8000 www.belden.com Data subject to change without notice. 30 Dectron, Inc. July 2013 Owners Manual Control Signals DK/DKV/RK Series Dehumidifier Wiring Installation INSTALLATION Remove the display from its box. Refer to the instructions included. Separate the display into its three pieces. Thread the end of the cable thorugh the hole in the subbase as shown. Using care to maintain level, screw the sub-base to the wall box here. Connect the cable to the modular telephone jack on the back of the display. Screw the display to its sub-base here. Snap the front cover over the display. NOTE: If power is applied before the Start-up tasks are accomplished, the display may show “NO LINK”. This is normal, and will be corrected under the Start-Up section of this manual. Data subject to change without notice. Dectron, Inc. July 2013 31 DK/DKV/RK Series Dehumidifier Owners Manual Installation Units with Air-Cooled Air Conditioning Only Open the unit cabinet access panels and locate the refrigerant receiver(s) and the reheat coil(s). Locate the access valves in the receiveroutlet tube and the reheat-coil outlet tube. Compare the refrigerant pressures on these access valves to the saturation pressures for the temperature. If the receiver pressures and the reheat coil pressures are significantly above or Reheat Coil below saturation, contact Dectron or the local Access Dectron representative. Valves Check the unit for refrigerant leaks. INSTALLATION Locate the capped refrigerant-tube stubs for connection to the remote condenser. These stubs are labelled. There will be a manual isolation valve just inside the cabinet for each stub. Confirm that these isolation valves are closed. Piping Receiver Horizontal Unit Vertical Unit To remove the stub caps, cut them off with a tube cutter, or heat them and pull them off. If heat is used, apply wet cloths to protect the cabinet grommets and the isolation valves from damage. Data subject to change without notice. 32 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Piping Installation IMPORTANT: Contact Dectron before exceeding the maximum tube length specified on the unit nameplate. Contact Dectron before changing the tube size specified on the unit nameplate. (See Product Description - Unit Nameplate.) IMPORTANT: Install two access valves at the remote condenser per refrigeration circuit. IMPORTANT: Never allow dirt or other foreign materials to enter the remote condenser or the tubes connecting it to the Ecotron®. Foreign material may damage valves and other components. If the insides of the tubes are contaminated with dirt, oil, sludge, rust, or other materials, then they must be thoroughly cleaned or replaced. IMPORTANT: Never allow liquid water to enter the remote condenser or the tubes connecting it. Leave tube plugs in place until ready to assemble the tubes and fittings. Water must be removed from the remote condenser and the tubes that connect it to the Ecotron®. Evacuation will take much longer if liquid water is present. Note: Some Ecotron® units may have two (or more) pairs of tubes to the remote condenser(s). Connect the refrigerant tubes between the Ecotron® and the remote condens- Same level - Contact Dectron before exceeding the tube size or maximum tube length, both of which are specified on the unit nameplate. Install two access valves at the remote condenser for each circuit. Ecotron® er(s). Use only clean Type ACR copper tube. Silver braze the copper tube joints using BCuP filler. Soft solder is subject to long-term failure. If flux must be used, use only enough flux to solder. Excess flux can contaminate the refrigeration system and damage components During silver brazing the inside of the tube must be protected from oxidation by flooding the tube with an inert gas such as nitrogen, argon, or carbon dioxide. Silver brazing copper tubes with air inside will produce a flaky copper-oxide scale that can contaminate the refrigeration system and damage components. IMPORTANT: Check carefully for leaks. For remote condensers located above the Ecotron®, contact Dectron before exceeding the tube size or maximum tube length, both of which are specified on the unit nameplate. P-traps must be installed in the hot-gas riser tubes to break up the lift into segments of less than 20 feet. Install two access valves at the remote condenser inverted P-traps for each refrigeration circuit. remote condenser remote condenser Some units may have only one pair of tubes. DRY-O-TRON ® MODEL #: SERIAL #: 20 ft. or less REF. #: I.D. D 460 V ac, 3 ph, 60 Hz ELECTRICAL RATING COMPRESSOR LRA RLA COMPRESSOR LRA RLA COMPRESSOR LRA RLA COMPRESSOR LRA RLA HP FLA BLOWER MOTOR BLOWER MOTOR BLOWER MOTOR PUMP MOTOR HP FLA HP FLA HP FLA ENTHALPY MOTOR HP FLA ELECTRIC HEATER kW A Max. L.A.T. (°F) SERVICE POWER SPACE HEATING COIL PSIG Max. MCA A MAX. FUSE/CKT. BKR.* A *(HACR type per NEC) R-22 FACTORY CHARGE lbs lbs R-22 TOTAL SYSTEM CHARGE AIR VOLUME CFM BELT SIZE WIRING DIAGRAM AIR TEMP. °F R.H. MAX. LENGTH OF REF. LINES (ONE WAY) BETWEEN D.O.T. & REMOTE CONDENSER: AIR COOLED COND. MODEL #: ft LIQUID: Contact Dectron for remote condensers located below the Ecotron®. % LINE SIZE: HOT GAS: in in REFRIGERANT DESIGN PRESSURES: HIGH/LOW 300/150 PSIG COMFORMS TO ANSI/UL STD 1995 CERTIFIED TO STD CAN/CSA- 50379 C22.2 NO. 236 FABRIQUÉ AU CANADA / MADE IN CANADA See Product Description Unit Nameplate oil-entrainment P-traps More than one set may be required. Ecotron® Some units may have only one pair of tubes. 20 ft. or less Data subject to change without notice. Dectron, Inc. July 2013 33 INSTALLATION UNITS WITH AIR-COOLED AIR CONDITIONING ONLY ASSEMBLING AND BRAZING CONDENSER TUBES DK/DKV/RK Series Dehumidifier Owners Manual Installation Piping UNITS WITH AIR-COOLED AIR CONDITIONING ONLY EVACUATION AND REFRIGERANT CHARGING IMPORTANT: Check for leaks before attempting to evacuate the condenser and tubes. IMPORTANT: Some Ecotron® units may have two (or more) pairs of tubes to the remote condenser. Each pair must be evacuated and charged independently. 1) Refer to the unit nameplate. Locate Total System Charge. Locate Factory Charge. INSTALLATION 2) Subtract Factory Charge from Total System Charge. Record this value as Ibuy. Ibuy = Total System Charge Factory Charge 3) Procure the amount Ibuy of the refrigerant specified on the unit nameplate. Depending on condenser tube length, slightly more or less refrigerant may be required. cury as measured by an electronic vacuum gauge. Compound gauges as found on refrigeration manifolds are inadequate. To insure a correct reading, install the electronic vacuum gauge far away from the vacuum pump, or temporarily isolate the gauge from the pump with a reliable vacuum valve while reading the pressure. Use proper evacuation methods to insure that all water and air have been removed from the condenser and connecting tubes. The colder the ambient temperature is, the longer proper evacuation takes. Allow enough time at low pressures to remove the water. The triple-evacuation method can be helpful. After proper evacuation: 4.) Evacuate the remote condenser and the tubes connecting it to the Ecotron® to a pressure below 500 microns of mer- (5) Weigh enough refrigerant into the condenser access valves to raise the condenser pressure above atmospheric pressure. Do not put liquid refrigerant into the suction access valve. Ecotron®. CAUTION: Once opened, these valves should not be closed except under special circumstances. See Operation-Service-Isolation Valves, later in this manual. (7) Locate and open the refrigerant receiver-isolation valves (2 per circuit) located inside the Ecotron®. CAUTION: Once opened, these valves should not be closed except under special circumstances. See Operation-Service-Isolation Valves, later in this manual. (8) Continue pumping refrigerant until the weighed quantity Ibuy (calculated in step 2) has been added. If necessary, a refrigerant pump or a refrigerant-recovery machine may help. (9) If the compressor(s) do not have isolation valves, the crankcase heaters should be turned on now. (6) Open the condenser isolation valves (2 per circuit) located inside the Evacuation and refrigerant charging Electronic vacuum gauge should reach 500 microns or less. Allow extra evacuation time at cold ambient temperatures. vacuum pump Ecotron® Shut-off valves inside the Ecotron® should be left closed until condenser pressure is above atmospheric. refrigerant cylinder on scale Add refrigerant equal to Total Charge - Factory Charge. See unit nameplate. remote condenser DRY-O-TRON ® Remove tube caps with tube cutter or heat only. Never use a saw. MODEL #: SERIAL #: REF. #: I.D. access valves D 460 V ac, 3 ph, 60 Hz ELECTRICAL RATING COMPRESSOR LRA RLA COMPRESSOR LRA RLA COMPRESSOR LRA RLA COMPRESSOR LRA RLA BLOWER MOTOR HP FLA BLOWER MOTOR HP FLA BLOWER MOTOR HP PUMP MOTOR FLA HP FLA ENTHALPY MOTOR HP FLA ELECTRIC HEATER kW A Max. L.A.T. (°F) SERVICE POWER unit nameplate SPACE HEATING COIL PSIG Max. MCA A MAX. FUSE/CKT. BKR.* A Do not attempt evacuation with access-valve cores in place. Use core-removal adapters. Ex: Robinair 18340 Yellow Jacket 19000 *(HACR type per NEC) R-22 FACTORY CHARGE lbs lbs R-22 TOTAL SYSTEM CHARGE AIR VOLUME CFM BELT SIZE WIRING DIAGRAM AIR TEMP. °F R.H. % MAX. LENGTH OF REF. LINES (ONE WAY) BETWEEN D.O.T. & REMOTE CONDENSER: AIR COOLED COND. MODEL #: ft HOT GAS: LINE SIZE: in LIQUID: in REFRIGERANT DESIGN PRESSURES: HIGH/LOW 300/150 PSIG Note: Crankcase heaters should be powered. COMFORMS TO ANSI/UL STD 1995 CERTIFIED TO STD CAN/CSA- 50379 C22.2 NO. 236 FABRIQUÉ AU CANADA / MADE IN CANADA Data subject to change without notice. 34 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Piping Installation UNITS WITH AIR-COOLED AIR CONDITIONING ONLY OIL CHARGING After adding refrigerant (discussed on a previous page), pump in the amount of oil (by others) shown on the unit nameplate. Use the type of oil specified on the unit nameplate or on the compressor nameplate. Never add oil to a low-pressure access valve on the Ecotron®. DRY-O-TRON ® MODEL #: SERIAL #: D I.D. 460 V ac, 3 ph, 60 Hz COMPRESSOR LRA RLA COMPRESSOR LRA RLA COMPRESSOR LRA RLA COMPRESSOR LRA RLA HP FLA BLOWER MOTOR BLOWER MOTOR BLOWER MOTOR COND. FAN MOTOR COND. FAN MOTOR PUMP MOTOR ENTHALPY MOTOR ELECTRIC HEATER HP FLA HP FLA HP FLA HP FLA HP FLA HP FLA kW A Max. L.A.T. (°F) SERVICE POWER SPACE HEATING COIL PSIG Max. MCA A 15 MAX. FUSE/CKT. BKR.* A *(HACR type per NEC) unit nameplate R-22 FACTORY CHARGE lbs AIR VOLUME CFM BELT SIZE WIRING DIAGRAM REFRIGERANT DESIGN PRESSURES: HIGH/LOW 300/150 PSIG 50379 COMFORMS TO ANSI/UL STD 1995 CERTIFIED TO STD CAN/CSAC22.2 NO. 236 LR 45671 Use care to prevent getting air or water into the refrigerant system. Oil can be added with a pump after refrigerant has been added. INSTALLATION ELECTRICAL RATING FABRIQUÉ AU CANADA / MADE IN CANADA REF.: POOL # 1: E.W.T.: ft² POOL # 3: ft² °F E.W.T.: ft² POOL # 4: E.W.T.: °F E.W.T.: °F AIR TEMP.: °F R.H.: % POOL # 2: °F ft² R-22 TOTAL SYSTEM CHARGE: lbs OIL TO BE ADDED AT START-UP: oz OIL TYPE: MAX. LENGTH OF REF. LINES (ONE WAY) BETWEEN D.O.T. & REMOTE CONDENSER: ft LINE SIZE: AIR COOLED COND. MODEL #: Ecotron® Shut-off valves inside the Ecotron® should be left closed until condenser pressure is above atmospheric. HOT GAS: in LIQUID: in Add type of oil specified on unit nameplate or on the compressor nameplate. Add amount of oil specified on unit nameplate. Where synthetic oils are specified, use care to prevent absorption of moisture from the air. oil pump Ex: Robinair 14388 Nu-Calgon 4814-0 remote condenser Data subject to change without notice. Dectron, Inc. July 2013 35 DK/DKV/RK Series Dehumidifier Owners Manual Installation Piping UNITS WITH WATER-COOLED OR FLUID-COOLED AIR CONDITIONING ONLY FLOW-SWITCH INSTALLATION NOTICE Optional Equipment. Where the unit has water-cooled air conditioning, follow the instructions in this manual and in all applicable codes. NOTE: Some units may be provided with a DryCooler. In this case, refer to Appendix M1. Where connection must be made to metal tube other than copper tube, install a dielectric union between the different tubes to reduce corrosion. Where flux must be used, use only enough flux to solder. Excess flux can contaminate the heat transfer fluid. IMPORTANT: Contact Dectron before changing the temperature range or flow rate of the water or fluid. (See Product Description - Unit Nameplate.) IMPORTANT: Never allow dirt or other foreign materials to enter the tubes connecting to the Ecotron®. Foreign material may cause damage to valves and other components. If the insides of the tubes are contaminated with dirt, oil, sludge, rust, or other materials, then the pipes must be thoroughly cleaned. IMPORTANT: Unless the optional pump output was selected at time of sale, constant water or fluid flow is essential. All pumps, cooling towers, fans, etc., involved in cooling the water or fluid must be enabled whenever the Ecotron® is operational. Do not allow a timer or other device to inhibit operation at any time the Ecotron® is operational. IMPORTANT: Cooling water must be protected from freezing if the water flow could be interrupted during low ambient temperatures. IMPORTANT: If a fluid other than water is used for condenser cooling, use only the type and concentration specified on the unit nameplate. (See Product Description - Unit Nameplate.) Water or Fluid Flow Switch The flow switch (see field wiring diagram) must be installed. See details below and on following pages. NOTE: The maximum fluid pressure should not exceed 140 PSI (0.98 MPa). NOTE: Refer to information shipped with flow switch. Pre-Assembly of Flow Switch Flow switch (supplied by Dectron, may require installation by others) Bushing, as needed, by others Pipe Tee, by others Flow velocity should be 6.5 ft/s (2m/s) or less. Flow switch has three paddles, two of which can be removed, as needed, for proper fit in pipe tee. DECTRON FLOW Bottom of flow-switch paddle must have adequate clearance for smooth operation. Data subject to change without notice. 36 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Piping Installation UNITS WITH WATER-COOLED OR FLUID-COOLED AIR CONDITIONING ONLY NOTICE Optional Equipment. Where the unit has water-cooled air conditioning, follow the instructions in this manual and in all applicable codes. All tubes, pipes, conduits, etc., must be separately supported by others. Supports must be so arranged as to prevent torques or axial or radial forces from being applied to the unit tube stubs or the condenser tube stubs. Other code requirements may also apply. Water-flow switch (supplied by Dectron, installed by others) screws 1/2” (12 cm) into a pipe tee (by others). NOTE: The switch may be factory installed, in which case no installation is needed. NOTE: Pipe locations may vary. See labels on unit. NOTE: Directional arrow on flowswitch body must correspond to direction of flow. NOTE: When testing for leaks, do not apply more than 140 PSI to the flow switch. NOTE: See next page for pressure drops and required flow rates. Contact Dectron before applying water or fluid of a temperature or flow rate other than that specified on the unit nameplate. Ac DECTRON D 5D Port locations may vary. See the unit port labels: WATER IN WATER OUT The water or fluid flow must be constant. Any, pumps, fans, cooling towers, etc., must be enabled whenever the Ecotron® unit is enabled. { { S tu a a m m l ap p ay pe le va ar ry an . ce Ecotron® 5D The minimum straight length on each side of the flow switch is 5 times the pipe diameter. Install flexible connectors to prevent the application of torques or axial loads to the Ecotron® connections. NOTE: See next page for required flows. NOTE: Installing the flow switch in a pipe that is not horizontal may change the expected set point ranges. NOTE: Installing the flow switch other than paddles-down may change the expected set-point ranges. Pipe Paddle NPT 1” 1 1¼ 1 1½ 1 2 1+2 1 2½ 1+2 1 3 1+2+3 1+2 1 4 1+2+3 1+2 1 5 1+2+3 1+2 1 6 1+2+3 1+2 1 Min. Adjust. GPM L/min 4.8 18 44 43 17 63 13 50 40 151 28 105 94 356 27 100 60 226 127 481 53 200 102 386 217 821 93 350 157 595 334 1266 140 530 221 837 471 1781 Max. Adjust. GPM L/min 11.9 45 26 100 35 135 39 150 58 220 93 355 95 360 59 225 127 480 134 510 101 385 216 820 230 870 157 594 334 1265 355 1342 221 836 470 1780 499 1890 Max. Flow GPM L/min 19 72 31 120 43 163 69 264 69 264 114 432 114 432 161 612 161 612 161 612 276 1044 276 1044 276 1044 426 1613 426 1613 426 1613 599 2268 599 2268 599 2268 Data subject to change without notice. Dectron, Inc. July 2013 37 DK/DKV/RK Series Dehumidifier Owners Manual Installation Piping UNITS WITH WATER-COOLED OR FLUID-COOLED AIR CONDITIONING ONLY NOTICE Optional Equipment. Where the unit has water-cooled air conditioning, follow the instructions in this manual and in all applicable codes. DECTRON 53 (200) 211 (800) Flow-Switch Pressure Drop 2” PIPE 1” PADDLE 159 (600) 1” PADDLE 423 (1600) Pressure Drop PSI (MPa) 3.6 (0.025) 2.9 (0.020) 2.2 (0.015) 1.5 (0.010) Flow Rate GPM (Lpm) 3.6 (0.025) 2.9 (0.020) 2.2 (0.015) 1.5 (0.010) 53 (200) 0.7 (0.005) 13 (50) Flow Rate GPM (Lpm) 107 (400) 0.7 (0.005) 2” PADDLE 26 (100) Pressure Drop PSI (MPa) Flow-Switch Pressure Drop 3” PIPE 2” PADDLE 317 (1200) 3” PADDLE 211 (800) 3.6 (0.025) 2.9 (0.020) 2.2 (0.015) 1.5 (0.010) 0.7 (0.005) 105 (400) Flow Rate GPM (Lpm) INSTALLATION 40 (150) Flow-Switch Pressure Drop 1” PIPE Pressure Drop PSI (MPa) Data subject to change without notice. 38 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Piping Installation WATER-HEATED, GLYCOL-HEATED, OR STEAM-HEATED UNITS ONLY OUTDOOR Ecotron® Connections to heating fluid system (by others) Port locations may vary. See the unit port labels. INSTALLATION Connect the heating fluid tubes between the Ecotron® and the hot fluid source. External tubes, pipes, etc., must be supported to prevent mechanical loads on the internal heat exchanger. Where connection must be made to metal tube other than copper, install a dielectric union between the different tubes to reduce corrosion. For units heated by glycol solution do not use galvanized pipe or tube. Where copper tubes are soft soldered, use only enough flux to solder. Excess flux can contaminate the heat transfer fluid. Where copper tubes are silver soldered, the inside of the tube must be protected from oxidation during soldering by flooding the tube with an inert gas such as nitrogen, argon, or carbon dioxide. DIVERTING VALVE Indoor Ecotron® units with integral steam- or hot- water heating have external valves (supplied by Dectron, installed by others). Install and connect this valve with its accompanying tube assembly as shown. INDOOR Ecotron® IMPORTANT! See Installation - Wiring - Heating Valve for proper methods of wiring this valve. Connections to heating fluid system (by others) Port locations may vary. See the unit port labels. Data subject to change without notice. Dectron, Inc. July 2013 39 DK/DKV/RK Series Dehumidifier Owners Manual Installation Piping Condensate Drain Important! The condensate drain must be installed and the P-trap must be filled before starting the unit. Δ Select materials Ordinary schedule 40 PVC or ABS plastic pipe is adequate in most cases. Do not reduce the pipe size below that provided on the unit. INSTALLATION Δ Install P-trap An adequate P-trap must be installed. If a P-trap is provided with the unit, use it. If one is not provided, use the recommended size Ptrap. The P-trap must be sized for negative 2.5 inch water column pressure (or lower) in the Ecotron® cabinet. DKV units have internal P-traps that are factory-installed. For long runs or possible unintentional traps, a vacuum breaker on the outlet side of the P-trap may be necessary. Follow standard procedures. Δ Route drain pipe Route the drain pipe so that the only trap is the P-trap. In horizontal runs, slope the pipe downward at least 1/4” per foot (2 cm per meter). Deliver the condensate to a suitable point. Check local codes for allowable procedures. Expect many gallons of water per hour. Some Ecotron® units have bottom condensate drains. The requirements for bottom drains is covered in Installation - Unpacking and Locating, since drain arrangements may have to be made before the unit is placed. Note that the unit will operate year-round. Depending on conditions, bottom drains may have to be protected against freezing. Such protection may include, but is not limited to, insulation and heat-tracing. Δ Fill P-trap To prevent air from being drawn through the condensate drain pipe, the P-trap must be filled with water before starting the unit blowers. Failure to do this will cause the drain pan to overflow during operation. Δ Condensate pump If a condensate pump must be used, be sure it has enough pressure and volume capability. If the condensate is to be delivered to a pipe that might be pressurized above atmospheric pressure, install a check valve to prevent backflow. BOTTOM DRAIN Ecotron® Vent P-trap Some Ecotron® units have side condensate drains. Use the same pipe materials and methods used for bottom condensate drains. Note: The unit will operate year-round. Side drains on outdoor units must be protected from freezing. Such protection may include, but is not limited to insulation and heat-tracing. Note: The unit will operate year-round. Depending on the climate, delivering condensate to a surface (such as a roof) rather than to a drain may cause a severe build-up of ice. SIDE DRAIN Ecotron® Vent P-trap Data subject to change without notice. 40 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Piping Installation Fuel Gas Piping Some units may be supplied with a gas-fired boiler to provide space heat. In this case, the boiler-fuel gas piping must be installed by the latest applicable codes. Information in the boiler manual provided with the unit supercedes any information in this manual. Applicable codes must be followed closely. INSTALLATION For units with built-in gas furnaces, please refer to Appendix H2. Do not obstruct bleed outlet. gas inlet drip leg The normal supply pressure for natural gas fueled boilers is 7” W.C. to 14” W.C. Consult Dectron for other supply pressures. Maximum equivalent pipe length (in feet) for natural gas (1000Btu/ft3, 0.60 specific gravity, and 0.5” W.C. pressure drop) pipe input size 1/2” firing rate 136 MBTU 15 512 627 726 825 926 1083 1178 1287 1413 1570 1758 2100 2500 3000 3500 4000 3/4” 60 1” 200 15 10 1-1/4” 1-1/2” 65 45 35 25 20 15 130 95 75 55 45 35 25 20 15 15 10 10 2” 2-1/2” 3” 4” 500 340 260 185 150 120 85 75 65 50 40 30 20 15 10 5 500 400 300 200 170 165 125 100 75 55 40 30 25 560 500 400 340 260 160 120 80 65 600 500 400 300 Data subject to change without notice. Dectron, Inc. July 2013 41 DK/DKV/RK Series Dehumidifier Owners Manual Installation This page intentionally left blank. Data subject to change without notice. 42 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Contents Startup Page 44 45 47 48 50 54 56 57 59 60 61 62 67 69 STARTUP Supervisaire® Controller Interface Display Address Pre-Startup Adjustments Occupied Periods Clock Adjust Air Flow Condenser Thermostats Flow Rates & Switches Pre-Startup Checklist Enable Operation Set Point Adjustment Read Sensors Expansion Valve Adjustment Startup Report & Warranty Registration Warranty Data subject to change without notice. Dectron, Inc. July 2013 43 DK/DKV/RK Series Dehumidifier Startup Controller Interface is used to access the list of alarm conditions, if any exist. While in the default screen, press the Prg button to display the program version. STARTUP Esc is used to return to previous interface levels. Owners Manual Default screen present value set point is used to scroll upward through screens and to increase settings. is used to navigate around the screen and to accept inputs. Prg Esc The backlit LCD screen displays any needed information on the operation of the system. NOTE: An optional remote display (if any) may show “NO LINK”. This will be corrected on the next page. is used to scroll downward through screens and to decrease settings. Data subject to change without notice. 44 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Set Display Address Optional remote displays may show the message “NO LINK”. Where this is the case, the address of the display must be set. To set the display address, follow the instructions below, which are based on the most common configurations. In some cases, an address other than “0” may be required. When other addresses are required, the unit will be accompanied by an addendum specifying those addresses. 1. If safe to do so, turn on the electric power to the unit. If the display shows “Humidity” and other information, no further action is needed. If not, proceed to step 2. Startup Prg Esc blinking cursor 2. Simultaneously press and hold the , , and buttons for at least five seconds. The screen at right will appear, where aa and bb are numbers. Display address setting . . . . . . . . . . . : aa 3. Press Display address setting . . . . . . . . . . . : aa . The cursor will move to aa, as shown. I/O Board address : bb I/O Board address : bb until aa equals 0. 5. Press . Note that “I/O Board address : bb” disappears. The screen at right appears briefly, followed by the unit default screen. Display address setting . . . . . . . . . . . : 0 STARTUP 4. Press Display address changed Default Screen xxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx If possible and safe, leave the electrical power connected to the Ecotron® and leave the blower overload ON. This will allow the compressor crankcase heater(s) to function. The crankcase heaters must be on continuously for at least 10 hours before the compressors are started. Data subject to change without notice. Dectron, Inc. July 2013 45 DK/DKV/RK Series Dehumidifier Startup Owners Manual Controller Interface For a controller interface map, see Operation. Default Screen MAIN MENU SCROLL DOWN FOR OPTIONS Esc xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx Prg PROGRAM: xxxxxxxx This displays the version of the operating program. Esc Esc GO TO STATUS MESSAGES Esc GO TO AUTO/OFF CONTROLS Esc GO TO SENSOR READINGS Esc STARTUP GO TO SET POINTS Esc There are many possible status messages. This screen is the gateway to other screens that display these status messages. See Operation - Controller Messages. The unit ships with the major components disabled in software. This screen is the gateway to other screens used to enable or disable the major components of the Ecotron®. See Startup Enable Operation. There are several sensors throughout the unit. This screen is the gateway to other screens used to display the readings of these sensors. See Startup - Read Sensors or Operation Read Sensors. This screen is the gateway to other screens used for setting the operating set points of the unit. The set points are protected by a user password. See Startup - Adjust Set points or Operation - Adjust Set points. GO TO OCCUPIED PERIOD OPTIONS This screen appears only on units with the optional occupation feature. This screen is the gateway to other screens used to adjust or define occupied periods. See Startup - Pre-Startup Adjustments. GO TO CLOCK SETTINGS This screen appears only on units with the optional occupation feature. This screen is the gateway to other screens used to set the internal clock (where used). See Startup - Pre-Startup Adjustments. Esc Esc GO TO SERVICE MENU Esc This screen is the gateway to other screens used for service monitoring or modification. Consult Dectron or a Dectroncertified technician. Data subject to change without notice. 46 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Set Occupied Periods Startup Some units may use an internal seven-day time clock to control outdoor-air intake during Occupied periods. In this case the times of the occupied periods must be set as shown here. All times are 24-hour (military) time. Ex: 6:00PM = 18:00. Default Screen MAIN MENU SCROLL DOWN FOR OPTIONS Esc xxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxx Prg Esc Press repeatedly to reach screen below. Note: 24-hour time only Esc OCCUPIED SELECTION FOLLOWS SCHEDULE UP/ DOWN TO CHANGE ENTER TO CONFIRM Prg Esc Esc For a controller interface map, see Operation. SUNDAY OCCUPIED aa:bb TO cc:dd ee:gg TO hh:ii kk:nn TO pp:rr MONDAY OCCUPIED aa:bb TO cc:dd ee:gg TO hh:ii kk:nn TO pp:rr Esc TUESDAY OCCUPIED aa:bb TO cc:dd ee:gg TO hh:ii kk:nn TO pp:rr Esc WEDNESDAY aa:bb TO ee:gg TO kk:nn TO Each day of the week can have up to three periods of occupation. In the screens at left, aa = hour of beginning of first occupied period bb = minute of beginning of first occupied period cc = hour of end of first occupied period dd = minute of end of first occupied period ee = hour of beginning of second occupied period gg = minute of beginning of second occupied period hh = hour of end of second occupied period ii = minute of end of second occupied period STARTUP Esc GO TO OCCUPIED PERIOD OPTIONS kk = hour of beginning of third occupied period nn = minute of beginning of third occupied period pp = hour of end of third occupied period rr = minute of end of third occupied period OCCUPIED cc:dd hh:ii pp:rr Esc THURSDAY OCCUPIED aa:bb TO cc:dd ee:gg TO hh:ii kk:nn TO pp:rr Esc FRIDAY OCCUPIED aa:bb TO cc:dd ee:gg TO hh:ii kk:nn TO pp:rr Esc SATURDAY aa:bb TO ee:gg TO kk:nn TO For each day, press as necessary to move the cursor to the desired value. Press or to change the value. To move to the next day, press repeatedly to move the cursor to the top left corner of the screen, then press to move to the screen of the next day. Press to return to previous screens. If an occupied period is not necessary, set beginning hour, beginning minute, ending hour, and ending minutes to zero. Esc OCCUPIED cc:dd hh:ii pp:rr Data subject to change without notice. Dectron, Inc. July 2013 47 DK/DKV/RK Series Dehumidifier Owners Manual Startup Set Clock Some units may use an internal seven-day time clock to increase outdoor air intake during Occupied periods. In this case the clock must be set for local time. Default Screen MAIN MENU SCROLL DOWN FOR OPTIONS Press Esc Esc repeatedly to reach screen below. GO TO CLOCK SETTINGS Esc DoW Prg xxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxx hh:mm For a controller interface map, see Operation. CLOCK SETTINGS Esc Esc SCROLL DOWN FOR OPTIONS SET TIME hh:mm GO TO SET TIME Esc STARTUP Esc SET DAY OF WEEK n GO TO SET WEEKDAY Esc CURRENT: DoW Press once, then press change the hour. Press again, then press change the minutes. or to or to Press once, then press or change the number of the day of the week. These numbers are 1 = Monday 2 = Tuesday 3 = Wednesday 4 = Thursday 5 = Friday 6 = Saturday 7 = Sunday Data subject to change without notice. 48 Dectron, Inc. July 2013 to Owners Manual DK/DKV/RK Series Dehumidifier Air Filters and Shipping Blocks CHECK THAT ALL FILTERS ARE CLEAN AND IN PLACE Startup LE ma y ut SA MP Locate and remove any blower restraints. Some blower frames may be mounted on springs -these must float freely. yo REHEAT COIL La HEATING COIL va There may be several air filters, some of which may not be readily visible. Some units may have filters that lift out. Others may have slide racks. ry. Controls SUPPLY AIR EVAPORATOR FILTERS STARTUP Locate a remove any shipping blocks for tubing or other devices. OUTDOOR AIR INTAKE Check blower-belt alignment and tension. (See Operation - Maintenance. FILTER Locate and remove any compressor shipping restraints. Release any compressor-foot locks. The control enclosure door is not an air compartment door. When the blower starts, the strong suction on the air compartment could cause an open door to close suddenly. Be sure to close and secure all air-compartment doors before starting the blower. FILTER CLOSE ALL AIR COMPARTMENT DOORS AND ACCESS PANELS draw tabs Data subject to change without notice. Dectron, Inc. July 2013 49 DK/DKV/RK Series Dehumidifier Owners Manual Startup Adjust Airflow Important! - Never run the blower without the filters in place. Regardless of filters, never run the blower on units with room-air recirculation when construction dust is present. The resulting heatexchanger damage is not covered by the Dectron warranty. Important! - Airflow must be set and confirmed before the refrigeration system is adjusted. Important! - Airflow must be set with the air-side doors or access panels closed. Before the Ecotron® is operated, the supply duct air flow must be measured and set by a qualified air-balancing technician. Air flow must be measured with all air-side access doors closed. If the unit is equipped with a variable-speed drive on the supply blower, be sure the motor is running at full speed. Adjust airflow The air flow of units without variable-speed motor drives is adjusted by changing the variable sheave (if any) on the blower motor shaft. Some units may require the replacement of the sheave with one of a different size. Do not change the airflow outside the range of ±10% of the unit nameplate value, without the express approval of Dectron. Do not overload the blower motor. ON 10 110 To run the blower only: 1. Turn on the branch-circuit disconnect switch. Some Ecotron® units may have voltage monitors that prevent operation in the event the branch circuit has voltage that is too high, too low, has lost a phase, or has reversed phase rotation. If the green LED is not lit, confirm that the applied voltage is within ±10% of the nameplate voltage (NEMA MG-1), that all three phases are present, and that the phase rotation is correct. 5 105 15 0.1 20 Delay (sec) 115 Vmax (%Ue) 10 85 90 5 15 0.1 95 80 20 Delay (sec) Vmin (%Ue) 10 5 15 0.1 20 Delay (sec) Ue (VAC) 2. In the Ecotron electrical enclosure, press START on the blower motor overload (if any). STARTUP 3. Follow the steps below to start the blower. If prompted for a password, enter “1793” for units built before April 2005 and “17” or “1793” for units built after April 2005. Default Screen MAIN MENU SCROLL DOWN FOR OPTIONS menu xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxx enter For a controller interface map, see Operation. ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F Prg Esc Press repeatedly to reach screen below. GO TO AUTO/OFF CONTROLS menu enter menu BLOWER COMPRESSOR #1 COMPRESSOR #2 Off Off Off enter TURNING BLOWER AUTO ENTER TO CONFIRM menu ESC TO CANCEL Press Then press Press Optional Do not select compressor(s). or to toggle between AUTOMATIC and OFF. menu enter to confirm. repeatedly to return to the main menu or default screen. DRY-O-TRON ® MODEL #: SERIAL #: If the blower does not turn the proper direction, a qualified person should disconnect electric power and interchange any two of the branch circuit wires at the Ecotron® input lugs. Torque the connectors as discussed earlier. Do not move any factory installed wires. I.D. D ELECTRICAL RATING COMPRESSOR LRA RLA COMPRESSOR LRA RLA COMPRESSOR LRA RLA COMPRESSOR LRA RLA HP FLA BLOWER MOTOR BLOWER MOTOR HP FLA BLOWER MOTOR HP FLA COND. FAN MOTOR HP FLA COND. FAN MOTOR HP FLA PUMP MOTOR HP FLA ENTHALPY MOTOR HP FLA ELECTRIC HEATER kW A Max. L.A.T. (°F) SERVICE POWER SPACE HEATING COIL 4. Adjust the air flow to ±10% of the nameplate value. For units with remotely-controlled variablespeed blowers adjust the air flow to ±10% of the nameplate value at full speed. Adjust the minimum speed so that the minimum air flow is not less than 75% of the nameplate value. PSIG Max. OUTDOOR USE / UTILISATION EXTÉRIEURE MCA A lbs AIR VOLUME CFM BELT SIZE WIRING DIAGRAM DOWTHERM SR-1 Ethylene Glycol (or equivalent) Mixed for -30°F (-34°C) Space Heating System Charge: US Gallons REFRIGERANT DESIGN PRESSURES: HIGH/LOW 300/150 PSIG COMFORMS TO UL STD 1995 CERTIFIED TO STD CAN/CSAC22.2 NO. 236 REF.: POOL # 1: ft² POOL # 3: E.W.T.: °F E.W.T.: POOL # 2: ft² POOL # 4: E.W.T.: °F E.W.T.: If possible and safe, leave the electrical power connected to the Ecotron® and leave the blower overload ON. This will allow the compressor crankcase heater(s) to function. The crankcase heaters must be on continuously for at least 10 hours before the compressors are started. AIR TEMP.: °F R.H.: °F ft² °F % lbs MAX. LENGTH OF REF. LINES (ONE WAY) BETWEEN D.O.T. & REMOTE CONDENSER: ft LINE SIZE: HOT GAS: in LIQUID: in Data subject to change without notice. Dectron, Inc. ft² R-22 TOTAL SYSTEM CHARGE: AIR COOLED COND. MODEL #: 50 A *(HACR type per NEC) R-22 FACTORY CHARGE 50379 5. Stop the blower by repeating step 3 above. If prompted for a password, enter as discussed above. MAX. FUSE/CKT. BKR.* July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Adjust Airflow Startup VOLTAGE MONITOR Be sure the Vmax time delay is set to 10 seconds. Be sure that Vmax is set to 110%. Higher values may allow overheating of internal motors. Do not adjust the voltage monitor without explicit instructions from Dectron. ON 10 110 5 105 Be sure the Vmin time delay is set to 10 seconds. Be sure that Vmin is set to 90%. Lower values may allow overheating of internal motors. 15 0.1 20 Delay (sec) 115 Vmax (%Ue) 10 85 90 5 15 0.1 95 80 20 Delay (sec) Vmin (%Ue) DECTRON 10 Do not adjust the voltage monitor without explicit instructions from Dectron. 5 15 0.1 Ue (VAC) 20 Delay (sec) Be sure the Ue time delay is 5 seconds or less. DRY-O-TRON ® MODEL #: SERIAL #: Be sure that Ue is set to the nominal voltage shown on the Dectron nameplate. When the branch circuit voltages are correct, the green ON LED should be on. If it is not on, or is flashing, see the following page for more details. D I.D. ELECTRICAL RATING 460 V ac, 3 ph, 60 Hz COMPRESSOR LRA RLA COMPRESSOR LRA RLA COMPRESSOR LRA RLA COMPRESSOR LRA RLA BLOWER MOTOR HP BLOWER MOTOR HP BLOWER MOTOR HP FLA FLA FLA COND. FAN MOTOR HP FLA COND. FAN MOTOR HP FLA PUMP MOTOR HP FLA ENTHALPY MOTOR HP FLA ELECTRIC HEATER kW A Max. L.A.T. (°F) SERVICE POWER SPACE HEATING COIL PSIG Max. MCA A 15 MAX. FUSE/CKT. BKR.* A *(HACR type per NEC) R-22 FACTORY CHARGE lbs AIR VOLUME CFM BELT SIZE WIRING DIAGRAM REFRIGERANT DESIGN PRESSURES: HIGH/LOW 300/150 PSIG FABRIQUÉ AU CANADA / MADE IN CANADA REF.: POOL # 1: ft² POOL # 3: ft² E.W.T.: °F E.W.T.: POOL # 2: ft² POOL # 4: E.W.T.: °F E.W.T.: °F AIR TEMP.: °F R.H.: % °F ft² lbs R-22 TOTAL SYSTEM CHARGE: MAX. LENGTH OF REF. LINES (ONE WAY) BETWEEN D.O.T. & REMOTE CONDENSER: ft LINE SIZE: AIR COOLED COND. MODEL #: HOT GAS: in LIQUID: in Data subject to change without notice. Dectron, Inc. July 2013 51 DK/DKV/RK Series Dehumidifier Owners Manual Startup Adjust Airflow Voltage Monitor LEDs ON 10 110 5 105 115 Vmax (%Ue) 15 ON OFF ON OFF 0.1 20 Delay (sec) 10 85 90 95 80 Vmin (%Ue) 5 Normal When the green LED is on steady, the voltages are within normal range, all voltages are present, and the phase sequence is correct. No action is needed. ON OFF 15 0.1 20 Delay (sec) 10 5 15 0.1 20 Delay (sec) Ue (VAC) ON 10 110 105 15 DECTRON 5 115 Vmax (%Ue) 0.1 20 Delay (sec) LEDs ON OFF ON OFF 10 85 90 95 80 Vmin (%Ue) 5 15 0.1 20 Delay (sec) ON OFF 10 5 15 0.1 20 Delay (sec) Ue (VAC) ON 110 10 5 105 115 Vmax (%Ue) 15 0.1 20 Delay (sec) LEDs ON OFF ON OFF 10 85 90 95 80 Vmin (%Ue) 5 15 0.1 20 Delay (sec) ON OFF Incorrect Phase Sequence When the green LED alternates with both red LEDs, the branchcircuit phase sequence is wrong, and the DRY-O-TRON cannot operate. Disconnect electrical power from the branch circuit, follow all safety procedures, and remove any two branch-circuit conductors from the input lugs. Exchange their places and re-connect. Tighten as appropriate. Do not change any factory-installed wires. Following all safety procedures, re-apply electrical power. The voltage monitor should be normal as shown above. Phase Loss When the green LED is flashing and with both red LEDs are off, the incoming branch circuit does not have all three phases, and the DRY-O-TRON cannot operate. Have a qualified electrician fix the problem and re-apply electrical power. The voltage monitor should be normal as shown above. 10 5 15 0.1 20 Delay (sec) Ue (VAC) ON 110 10 5 105 115 Vmax (%Ue) 15 0.1 20 Delay (sec) LEDs ON OFF ON OFF 10 85 90 95 80 Vmin (%Ue) 5 15 0.1 20 Delay (sec) ON OFF Incoming Voltage Below Minimum Allowable When the green LED is flashing and the lower red LED is on, the incoming voltage is too low, and the DRY-O-TRON cannot operate. Voltages below this level will result in motor overheating. Do not adjust the voltage monitor without explicit instructions from Dectron. Have a qualified electrician fix the problem and re-apply electrical power. The voltage monitor should be normal as shown above. 10 5 15 0.1 Ue (VAC) 20 Delay (sec) ON 10 110 5 105 115 Vmax (%Ue) 15 0.1 20 Delay (sec) LEDs ON OFF ON OFF 10 85 80 90 95 Vmin (%Ue) 5 15 0.1 20 Delay (sec) ON OFF Incoming Voltage Above Maximum Allowable When the green LED is flashing and the upper red LED is on, the incoming voltage is too high, and the DRY-O-TRON cannot operate. Voltages above this level will result in motor overheating. Do not adjust the voltage monitor without explicit instructions from Dectron. Have a qualified electrician fix the problem and re-apply electrical power. The voltage monitor should be normal as shown above. 10 5 15 0.1 Ue (VAC) 20 Delay (sec) Data subject to change without notice. 52 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Open Valves Startup Do not adjust any valves other than the ones specified below. Refrigerant valves should be left closed until the compressor crankcase heaters have been powered. Be sure that the following manual valves have been opened: 1. Depending on the size of the unit, the compressor(s) may have manual isolation valves. These valves must be opened before attempting to operate the compressor(s). 2. Depending on the type of unit, there may be refrigerant receivers. Where present, each receiver or group of receivers will have two isolation valves. These valves must be opened before attempting to operate the compressor(s). 3. For units with air-cooled air conditioning only - all condenser tubes will have an isolation valve inside the cabinet. These valves must be opened before attempting to operate the compressor(s). 4. Note: Some units may have other valves similar in appearance to those mentioned above. Do not adjust any valves other than those mentioned in steps 1-3. Since valve locations may vary, be sure of the function of a valve before adjusting. STARTUP Receivers (or groups of receivers) will have isolation valves (4 shown). Valve locations may vary. C O Sa N m M ST AY R pl U e VA CT RY IO . N Units with air-cooled air conditioning only - Each condenser tube will have an isolation valve (4 shown). Valve locations may vary. Some compressors may have oil sight glasses. Where present, be sure the oil level is correct. Sight-glass locations may vary. Each compressor may have isolation valves (4 shown). Where present, these valves must be opened before attempting to operate the compressor(s). Valve locations may vary. Data subject to change without notice. Dectron, Inc. July 2013 53 DK/DKV/RK Series Dehumidifier Owners Manual Startup Condenser Fans Discharge air must flow upward. CONDENSER FAN ROTATION (units with air-cooled air conditioning option only) Units with optional air-cooled air conditioning will have a remote condenser. The condenser fans must rotate so as to produce an upward air discharge as shown. Single phase fans will inherently turn the proper direction. If three phase fans turn the wrong way, a qualified person should disconnect the branch circuit and interchange any two wires on the power inlet lugs in the condenser control enclosure. Do not move any factory installed wires. C O Sa N m M ST AY R pl U e VA CT RY IO . N optional remote condenser CONDENSER FAN THERMOSTATS (units with air-cooled air conditioning option only) STARTUP Units with optional air-cooled air conditioning will have a remote condenser. Some remote condensers may have more than one fan. Condensers with multiple fans have a minimum number of fans that run continuously whenever the Ecotron® is in cooling mode. Any other fans will be controlled by thermostats sensing outdoor air temperature. The thermostats must be adjusted at installation, using the diagrams below and on the next page. FAN ARRANGEMENT CONDENSER CONTROL ENCLOSURE No adjustments necessary. 1 refrigeration circuit fan contactors 1 refrigeration circuit 1 refrigeration circuit 1 refrigeration circuit 1 refrigeration circuit set point fan thermostat 65 xx 54 65 xx xx 45 58 65 xx xx xx 45 58 65 70 xx xx xx xx Data subject to change without notice. 54 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Condenser Fans Startup CONDENSER CONTROL ENCLOSURE 65 1 refrigeration circuit 2 refrigeration circuits xx 65 65 xx xx 54 65 1 refrigeration circuit 2 refrigeration circuits xx 54 65 xx 54 65 xx xx xx xx xx xx 45 58 65 xx xx xx xx 45 58 65 xx xx xx 45 58 65 70 xx xx xx xx 45 58 65 70 xx xx xx xx xx 40 45 58 65 70 1 refrigeration circuit 2 refrigeration circuits xx 45 58 65 1 refrigeration circuit 2 refrigeration circuits xx 45 58 65 1 refrigeration circuit 2 refrigeration circuits xx STARTUP FAN ARRANGEMENT xx xx 40 45 58 65 70 xx xx xx xx xx xx xx xx 40 45 58 65 70 xx xx xx xx xx Data subject to change without notice. Dectron, Inc. July 2013 55 DK/DKV/RK Series Dehumidifier Startup Owners Manual Set Optional Cooling-Water Flowswitch Units Equipped for Water-Cooled Air Conditioning Only Locate the cooling-water flow switch. Port locations may vary. See the unit port labels. Ac S ap tua am pe l lo ar ca ple a va nc tion ry e m a n . ay d DRY-O-TRON® Remove and retain the flowswitch cover. Do not allow objects to fall onto the inner workings. STARTUP NOTE: Do not turn this screw without expressed instructions from Dectron. Adjust the flow switch using only this set-point adjustment screw. Do not turn any other screws. Do not bend frames. NOTE: For adjustment ranges, see table in Installation-Piping- Water- or Fluid-Cooled A/C. Establish the proper flow rate. See previous page. CAUTION: If the set-point adjustment screw is turned too far counterclockwise, there will be a point of slightly increased resistance to turning. Beyond this point the screw will break off. Adjust the flow switch setpoint-adjustment screw until the contacts (C and A) close reliably for proper flow. Turning the screw clockwise raises the set point. Turning the screw counter-clockwise lowers the set point. Test the function of the flow switch several times by starting and stopping the flow. Be sure that flow closes the switch contacts (C and A) reliably and that loss of flow breaks the switch contacts (C and A) reliably. Replace the flow switch cover. If possible and safe to do so, leave the cooling water flowing. Remove the jumper that was installed on third page previous. Data subject to change without notice. 56 Dectron, Inc. July 2013 DK/DKV/RK Series Dehumidifier Pre-Startup Checklist Print your initials in the boxes to indicate completion. Print “N/A” for items which are not applicable to the installation. Space Confirm that adequate space has been left around the Ecotron® (see Installation Unpacking and Locating). Confirm that no construction dust or other debris is in the duct(s). Confirm that no construction dust or other debris will be drawn into the unit. your initials your initials your initials Startup Piping Wiring For units with water- or fluidcooled air conditioning, or for heat-pump units, confirm that the water or fluid flow is within tolerance according to the unit specifications. Confirm that the voltage to be applied to the Ecotron® corresponds to that specified on the unit nameplate and to the other requirements of Installation - Wiring - Power. Confirm that the condensate drain pipe is properly connected with a P-trap, and is free of leaks. Confirm that the condensate drain P-trap has been filled with water and that the drain works. For units requiring a condensate pump, confirm that the pump is operating. your initials your initials your initials your initials Confirm that the size of the wire supplying electric power to the Ecotron® is adequate for the circuit ampacity shown on the nameplate. For long lengths of power wiring or marginal voltage, confirm that the wire size is adequate for less than 10% voltage drop under compressor starting current. Confirm that only copper wire was used for any connections to the Ecotron®. Confirm that the unit is properly grounded. Confirm that all electrical connections have been checked for tightness and re-torqued as necessary. Confirm that all electrical enclosures are clean and dry. For 3-phase units, confirm that the phase sequence is correct for proper blower rotation. See Setup - Airflow. Confirm that the control signal wiring is complete, as shown in the unit field-wiring diagram. Completed by _________________________________ Ph. ( your initials your initials your initials your initials your initials your initials your initials your initials your initials )___-____ Data subject to change without notice. Dectron, Inc. July 2013 57 STARTUP Owners Manual DK/DKV/RK Series Dehumidifier Owners Manual Startup Pre-Startup Checklist Unit preparation For indoor Ecotron® units, confirm that the unit is supported on vibration isolators (see Installation - Isolators and Drain). Confirm that all shipping blocks, shipping braces, compressor locks, etc., have been removed or released for normal operation. Confirm that the blower belt is properly installed, tensioned and aligned. Confirm that the intake is unobstructed. Confirm that the air volumes have been measured and are correct (see Installation - Air Distribution - Adjust Airflow). your initials your initials your initials your initials your initials STARTUP Confirm that all air filters are clean and in place. your initials Confirm that the air heat exchangers are clean. your initials Confirm that all refrigerantisolation valves have been opened. Confirm that power has been applied to the crankcase heaters for at least 10 hours. For end intake units, confirm that the the intake duct (if any) has the minimum straight length (see Installation Unit-Duct Connections). Confirm that the supply duct has the minimum straight length (see Installation Unit-Duct Connections). Confirm that all ducts have been sized and installed correctly to limit the external static pressure to no more than the specified amount. Confirm that all grilles and diffusers are unobstructed. Confirm that all construction dust and debris has been removed from the ducts. your initials your initials your initials your initials your initials your initials your initials Air distribution Completed by _________________________________ Ph. ( )___-____ Data subject to change without notice. 58 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Enable Operation Startup IMPORTANT! Startup must be performed by a qualified factory-trained service and installation technician. Once startup is completed, all portions of the “Startup Report and Warranty Registration” form must be completely filled in and a copy must be sent to the Dectron representative or to the Dectron factory in order to register and validate the warranty. Important! Do NOT turn on the electric power unless the power supply voltage matches that specified on the unit nameplate. Be certain that there is no construction dust in the return duct (if any). 1. If electric power was not previously connected, connect it now. This starts the compressor crankcase heaters. For units with manual reset overload(s) for the blower motors, press the START button(s) on the overload(s). Allow no less than 10 hours of crankcase-heater operation before enabling a compressor. 2. In the Ecotron® electrical enclosure, press START on the blower motor overload (if any). Press START on the compressor overload(s) (if any). Press START on the enthalpy wheel motor overload (if any). 3. Follow the steps below to enable the blower and compressor(s). If prompted for a password, enter 1793 for units built before April 2005, and 1793 or 17 for units built since April 2005. Esc HUMIDITY aaa / bbb % SUPPLY AIR ccc / ddd F For a controller interface map, see Operation. Prg ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F STARTUP Default Screen MAIN MENU SCROLL DOWN FOR OPTIONS Esc Press repeatedly to reach screen below. GO TO AUTO/OFF CONTROLS Esc Esc BLOWER COMPRESSOR #1 COMPRESSOR #2 Off Off Off TURNING BLOWER AUTO ENTER TO CONFIRM ESC TO CANCEL Esc Optional STOP Esc COMPRESSOR #3 COMPRESSOR #4 or to toggle between AUTOMATIC and OFF. Then press to confirm. Do not proceed unless the compressor crankcase heaters have been powered for at least 10 hours. For DKV units, do not proceed unless the mechanicalroom temperature has been above 65°F for at least 10 hours. Esc Optional Press Off Off Esc Esc TURNING COMPR. 1 AUTO ENTER TO CONFIRM ESC TO CANCEL Press or to toggle TURNING COMPR. 2 AUTO ENTER TO CONFIRM ESC TO CANCEL (Optional) Press TURNING COMPR. 3 AUTO ENTER TO CONFIRM ESC TO CANCEL Press Then press to confirm. TURNING COMPR. 4 AUTO ENTER TO CONFIRM ESC TO CANCEL Press to toggle between AUTOMATIC and OFF. Then press to confirm. or to togglebetween AUTOMATIC and OFF. Then press or to confirm. to toggle between AUTOMATIC and OFF. or between AUTOMATIC and OFF. Then press to confirm. Data subject to change without notice. Dectron, Inc. July 2013 59 DK/DKV/RK Series Dehumidifier Owners Manual Startup Set-Point Adjustment Specific operating modes may be required for proper start-up. To achieve these modes, it may be necessary to temporarily adjust set points away from the nameplate values. The operating set points are viewed and adjusted as shown below. If prompted for a password, enter 1793 for units built before April 2005, and 1793 or 17 for units built since April 2005. To clear the password, select YES when prompted to log off. Prg ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F Esc Default Screen MAIN MENU SCROLL DOWN FOR OPTIONS Press Esc ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F repeatedly to reach screen below. Press screen. GO TO SET POINTS Esc Esc DEWPOINT SET aa F SUPPLY AIR SET W/COMPR. ON bb F W/COMPR. OFF cc to move the cursor around the aa is the maximum allowable dew point of the supply air. STARTUP bb is the supply air temperature set point when the compressor(s) is running (via proportional reheat). If a change is desired, press as needed to move the cursor to bb, then press or to change the set point. For a controller interface map, see Operation. cc is the supply air temperature set point for the internal heater. If a change is desired, press as needed to move the cursor to cc, then press or to change the set point. Data subject to change without notice. 60 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Read Sensors Startup The values of some sensor signals are displayed on the default screen, as at right. To read all sensors, follow the steps below: Default Screen MAIN MENU SCROLL DOWN FOR OPTIONS HUMIDITY aaa / bbb % ROOM AIR ccc / ddd F Esc For a controller interface map, see Operation. Prg ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F Esc Press repeatedly to reach screen below. GO TO SENSOR READINGS Prg SUPPLY AIR TEMP READING . . . xxxF This screen displays the temperature of the supply air, as measured at the Ecotron® supply blower. EVAP 1 AIR TEMP READING . . . xxxF This screen displays the temperature of the air leaving the evaporator of the first refrigeration circuit. DISCHARGE 1 TEMP READING . . . xxxF This screen displays the temperature of the hot refrigerant gas leaving the #1 compressor. This is important to a proper startup. See Startup - TXV Adjustment. ENTERING DEWPOINT READING . . . xxxF This screen appears only on units with the optional outdoor air temperature sensor. It displays the temperature of the outdoor air. Esc Esc Esc Esc (CALCULATED) EVAP 2 AIR TEMP READING . . . xxxF Esc STARTUP This is a sample. The order and number of sensor screens may vary between units, depending on options ordered. Esc This screen appears only on units with two refrigeration circuits. It displays the temperature of the air leaving the evaporator of the second refrigeration circuit. to other readings Data subject to change without notice. Dectron, Inc. July 2013 61 DK/DKV/RK Series Dehumidifier Owners Manual Startup Adjust Expansion Valve The expansion valve(s) must be adjusted at startup, since airflow affects the evaporator loading. To obtain proper operation and long life, it is important to adjust the expansion valve(s) as described below. Do not attempt to adjust the expansion valve based on evaporator superheat. S LE yv ma MP ut Cooling Cooling Cooling C S STARTUP O a N m M ST p AY R U les VA CT RY IO . N La No HeatPump Option yo SA Cooling ary . Adjust circuit #1 expansion valve(s)1. For units with air-cooled air conditioning, be sure that the specified additional refrigerant has been added. (See Product Description - Unit Nameplate, Installation - Piping - Refrigerant, and Startup - Add Refrigerant.) 2. Be sure that the air flow has been adjusted to the value shown on the unit nameplate. (See Product Description - Unit Nameplate. 3. Be sure that the intake-air temperature and relative humidity are at the values shown on the unit nameplate. (See Product Description - Unit Nameplate). 4. Determine if the unit has the Heat-Pump option. Units with the Heat-Pump option (a) are water-source and water-sink, and (b) have one or more expansion valves on the first air heat exchanger(s) and one or more expansion valves on the water heat exchanger(s). Heat-Pump Option Cooling Cooling Note heating expansion valve(s) on refrigerant/water heat exchanger(s). 5. There may be more than one refrigeration circuit. Identify the cooling expansion valve(s) associated with the first circuit. 6. Close the access panels or doors. 7. Start the unit per the instructions given in Startup - Enable Operation. 8. If the unit does not operate in dehumidification mode, then temporarily decrease the humidity set point by at least 5% to cause the unit to operate in dehumidification mode. (See Startup - Adjust Set Points) The compressor should run. 9. Be sure that the refrigerant sight glass is completely full of liquid, with no bubbles. If bubbles are present, return to Step 1 or contact Dectron. Data subject to change without notice. 62 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Adjust Expansion Valve(s) Startup Adjust Cooling Expansion Valves 10. Operate the water loop at 90°F with the flow rate recommended in section Installation - Piping. 11. Allow the unit to run in dehumidification mode for at least 20 minutes, then read DISCHARGE 1 TEMP from the controller as shown. Default Screen MAIN MENU SCROLL DOWN FOR OPTIONS Press ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F Esc Prg Esc repeatedly to reach screen below. GO TO SENSOR READINGS Prg SUPPLY AIR TEMP READING . . . xxxF Esc Esc Press DISCHARGE 1 TEMP READING . . . xxx % Use this temperature to adjust the expansion valve(s) for circuit #1. C STARTUP S O a N m M ST p AY R U les VA CT RY IO . N Esc repeatedly to reach screen below. Discharge temperatures: R-22 180°F (82°C) to 200°F (93°C) R134A 160°F (77°C) to 180°F (88°C) R-407C 160°F (71°C) to 180°F (82°C) R-410A 150°F (66°C) to 170°F (77°C) (a) If DISCHARGE 1 TEMP is too low, close the cooling expansion valve(s) 1/2 turn at the time, allowing at least 15 minutes between adjustments. (b) If DISCHARGE 1 TEMP is too high, open the expansion valve(s) 1/2 turn at the time, allowing at least 15 minutes between adjust-ments. (c) For multiple expansion valves, mount remote-reading thermometers under the valve-bulb insulation of each expansion valve. Try to keep the average valve-bulb temperatures as near the same as possible, while meeting the requirements of (a) and (b) above. 12. Replace the expansion-valve caps. 13. Repeat the above steps for the cooling expansion valves of any other refrigeration circuits. 14. Allow the Ecotron® to operate continuously for at least 1 hour after the last adjustment, then check to be sure DISCHARGE 1 TEMP is within range. 15. Repeat for any other circuits. 16. Return the set points to normal, as noted on the unit nameplate (see Product Description - Unit Nameplate). Data subject to change without notice. Dectron, Inc. July 2013 63 DK/DKV/RK Series Dehumidifier Owners Manual Startup Adjust Expansion Valve(s) Adjust Heating Expansion Valves 16. Operate the water loop at 50°F (10°C). 17. Allow the unit to run in heat-pump mode for at least 20 minutes, then read and record DISCHARGE 1 TEMP from the controller as shown. Default Screen MAIN MENU SCROLL DOWN FOR OPTIONS Press ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F Esc Prg Esc repeatedly to reach screen below. GO TO SENSOR READINGS Prg SUPPLY AIR TEMP READING . . . xxxF Esc Esc 18. Read and record the condensing pressure. Press 19. Find the saturation temperature for the specified refrigerant at the condensing pressure. This can be obtained from tables or from most refrigeration gauges. DISCHARGE 1 TEMP READING . . . xxx % Use this temperature to adjust the expansion valve(s) for circuit #1. C STARTUP S O a N m M ST pl AY R U e VA CT s RY IO . N Esc repeatedly to reach screen below. 20. Adjust the heating expansion valves to cause the compressor discharge temperature to be between 60°F (15.6°C) and 70°F (21°C) above the condensing saturation temperature. (a) If DISCHARGE 1 TEMP is below 50°F (10°C) above condensing saturation temperature, close the heating expansion valve(s) 1/2 turn at the time, allowing at least 15 minutes between adjustments, until the temperature is correct. (b) If DISCHARGE 1 TEMP is above 60°F (15.6°C) above condensing saturation temperature, open the heating expansion valve(s) 1/2 turn at the time, allowing at least 15 minutes between adjustments, until the temperature is correct. (c) For multiple expansion valves, mount remote-reading thermometers under the valve bulb insulation of each expansion valve. Try to keep the average valve-bulb temperatures as near the same as possible, while meeting the requirements of (a) and (b) above. 21. Replace the expansion valve caps. 22. Repeat the above steps for the heating expansion valves of any other refrigeration circuits. 23. Allow the Ecotron® to operate continuously for at least 1 hour after the last adjustment, then check to be sure DISCHARGE 1 TEMP is between 50°F (10°C) and 60°F (15.6°C) above the condensing saturation temperature. 24. Return the set points to normal, as noted on the unit nameplate (see Product Description - Unit Nameplate). Data subject to change without notice. 64 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Startup STARTUP This page intentionally left blank. Data subject to change without notice. Dectron, Inc. July 2013 65 DK/DKV/RK Series Dehumidifier Owners Manual Startup The Start-up Report and Warranty Registration form must be completed and a copy must be sent to Dectron. Dectron provides training for installers and service technicians for a nominal fee. Contact the Dectron service department for details. In some cases Dectron may be able to provide Dectron personnel to supervise the startup procedure for a fee. In this case, the Dectron employee will travel to the site and supervise, guide, and assist the contractor in the start-up. The Dectron employee does not do the startup, he or she supports and trains the contractor as the contractor does the startup. This service is referred to as “ factory startup supervision”. STARTUP Factory startup supervision must be purchased in advance to allow for scheduling personnel. Before Dectron personnel can be assigned to the task, the Dectron service department must receive: 1. the completed pre-startup checklist found in Startup - Pre-Startup Checklist Each applicable item of the checklist must be initialed (use “N/A” where an item is not applicable) and both sides of the checklist must be signed and dated by the responsible party. The responsible party must be authorized to obligate his company to pay for the factory startup assistance. 2. telephone confirmation from the responsible party to the Dectron service department that all applicable steps of the installation and startup procedure, along with any other steps specified by the Dectron service department have been completed The responsible party may request a specific date for the factory startup supervision. The Dectron service department will then schedule factory startup supervision with the responsible party. Upon accepting the scheduled date for factory startup supervision, the responsible party accepts the responsibility to: 1. provide a qualified and licensed (as necessary) refrigeration technician to be on site for the duration of the factory startup supervision, The technician will accomplish the startup while being instructed as necessary by the Dectron employee. This training will be of great value in any future service to the equipment. 2. provide and install any extra material such as refrigerant, wire, or other material, 3. provide any necessary equipment such as hand tools, instruments, pumps, ladders, etc., and 4. make available as necessary any other personnel needed for the startup, such as plumbing and electrical contractors. If upon arrival the Dectron employee sees that installation steps have been neglected, he will return to Dectron and the full price of the factory startup supervision will be billed. Examples of such neglected steps include, but are not limited to, incomplete connection of electric power, incomplete ductwork, incomplete connection of remote condenser (if any), incomplete control wiring, etc. Dectron also offers service and installation seminars as well as operation and maintenance seminars. Consult Dectron or your Dectron representative for details. Data subject to change without notice. 66 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Warranty Registration Startup Ecotron® DK Series Startup Report & Warranty Registration Warranty void unless this form is completed and a copy returned to Dectron within 1 week after start-up! Installation Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dectron Representative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model # . . . . . . . . . . . . . . . . . . . . . . . . . . . . Serial # . . . . . . . . . . . . . . . . . . . . . . . . . Ref # . . . . . . . . . . . . . . . Compressor #1 Serial # . . . . . . . . . . . . . . . . . . Compressor #3 Serial # . . . . . . . . . . . . . . . . . . Compressor #2 Serial # . . . . . . . . . . . . . . . . . . Compressor #4 Serial # . . . . . . . . . . . . . . . . . . Electrical power L1 - L2 L2 - L3 L1 - L3 Blower Belt Size . . . . . . . . . . . . . . Nameplate Supply Blower voltage Supply Blower amperage Exhaust Blower amperage Compressor #1 amperage STARTUP Compressor #2 amperage Compressor #3 amperage Compressor #4 amperage Compressor voltage Adequate service access provided? (See Installation Unpacking & Locating.) Units level and vibration isolated? (See Installation - Isolators & Drain.) Wire connections checked for tightness? (See Installation - your initials Wiring - Power.) your initials Start-up check lists complete? (See Installation - Startup - PreStartup Checklists.) Condensate drain connected and P-trap installed and filled? (See Installation - Isolators & Drain.) Condensate drain tested? (See Installation - Isolators & Drain.) Condensate pump installed properly? (See Installation Isolators & Drain.) Main disconnect switch installed? (See Installation Wiring - Power.) your initials your initials Blower rotation on 3-phase units correct? (See Installation - Wiring - Power.) Air flow and blower speed adjusted? (See Installation - Air Distribution - Adjust Airflow.) your initials No fault codes are displayed on operator panel? your initials Set points are at design conditions? (See unit nameplate.) your initials your initials Air flow....................................cfm your initials your initials your initials your initials Optional outdoor air cooled condenser location Above D.O.T. Refrigerant connection size.....................Hot gas ...................Liquid Below D.O.T. Same level as D.O.T. Pipe length from D.O.T. to condenser................... Data subject to change without notice. Dectron, Inc. July 2013 67 DK/DKV/RK Series Dehumidifier Owners Manual Startup Warranty Registration Ecotron® DK Series Startup Report & Warranty Registration Warranty void unless this form is completed and a copy returned to Dectron within 1 week after start-up! Operational Data NOTE: To Obtain Adequate Readings, a Delay of Ten (10) Minutes is Required After Every Operation or Adjustment. Dehumidification Entering Air Temperature °F Leaving Air Temperature °F Entering Relative Humidity % Condenser Pressure Suction Pressure STARTUP Oil Pressure Sight Glass Clear? TX Valve Bulb Temperature Compressor Discharge Temp. Air Leaving Cooling Coil Temp. PSIG PSIG PSIG Y/N A/C Only Heating Circuit #1 Circuit #3 Circuit #1 Circuit #3 Circuit #2 Circuit #4 Circuit #2 Circuit #4 Circuit #1 Circuit #3 Circuit #1 Circuit #3 Circuit #2 Circuit #4 Circuit #2 Circuit #4 Comp. #1 Comp. #3 Comp. #1 Comp. #3 Comp. #2 Comp. #4 Comp. #2 Comp. #4 Circuit #1 Circuit #3 Circuit #1 Circuit #3 Circuit #2 Circuit #4 Circuit #2 Circuit #4 Circuit #1 Circuit #3 Circuit #1 Circuit #3 Circuit #2 Circuit #4 Circuit #2 Circuit #4 Circuit #1 Circuit #3 Circuit #1 Circuit #3 Circuit #2 Circuit #4 Circuit #2 Circuit #4 Circuit #1 Circuit #3 Circuit #1 Circuit #3 Circuit #2 Circuit #4 Circuit #2 Circuit #4 °F °F °F Comments: Form completed by ......................................................................Signature ............................................... Company Name .......................................................................................................................................... Date..............................................................................................Telephone ( ) ............................ Data subject to change without notice. 68 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Warranty Terms of Limited Warranty Ecotron® Energy Recycling Dehumidifiers (packaged units) and Factory Supplied Accessories Registration and Start-Up Report Warranty void unless upon start-up of the unit the “Start-Up Report and Warranty Registration” is completed and sent to the factory within one week of initial start-up. This will also register the compressor warranty with the compressor manufacturer. Initial 30-Day Warranty During the first 30 days from initial start-up and subject to prior approval from the factory, Dectron Inc. will provide and/or reimburse the approved labor, materials, and shipping costs incurred in the replacement of a defective part. Remainder of 12-Month Warranty Upon expiry of the initial 30-day warranty, and until completion of the twelvth month after unit startup or the eighteenth month from date of shipment from Dectron Inc., whichever comes first, if any part supplied by Dectron Inc. fails because of a defect in workmanship or material, Dectron Inc. will furnish a new or rebuilt part F.O.B. factory1 or FCA factory2, as applicable. No reimbursement will be made for expenses incurred in making field adjustments or replacements unless specifically re-approved by Dectron Inc. in writing beforehand. 1& 2. When goods are loaded onto the truck or container at the Dectron factory, title to goods as well as all shipping costs, insurance costs, and all other costs and risks become the responsibility of the recipient. Applicability This warranty is applicable only to products that are purchased and retained in the United States and Canada. This warranty is not applicable to: Δ Products that have become defective or damaged as a result of the use of a contaminated water circuit or operation at abnormal water temperatures and/or flow rates. Δ Parts that wear out due to normal usage, such as air filters, belts, fuses and refrigerant. Δ Products that have been moved from the location where they were first installed. Δ Any portion of the system not supplied by Dectron Inc. Δ Products on which the model and/or serial number plates have been removed or defaced. Δ Products on which payment is in default. Δ Products which have become defective or damaged as a result of unauthorized opening of refrigerant circuit, improper wiring, electrical supply characteristics, poor maintenance, accidents, transportation, misuse, abuse, fire, flood, alteration and/or misapplication of the product. Δ Products operated without clean, properly installed air filters. Δ Products not installed, operated, and maintained as per the applicable Dectron Inc. Owner’s Manual. Limitations This warranty is given in lieu of all other warranties. Anything in the warranty notwithstanding, any implied warranties of fitness for particular purpose and merchantability shall be limited to the duration of this express warranty. Manufacturer expressly disclaims and excludes any liability for consequential or incidental damage for breach of any express or implied warranty. Where a jurisdiction does not allow limitations or exclusions in a warranty, the foregoing limitations and exclusions shall not apply to the extent of legislation, however, in such case the balance of the above warranty shall remain in full force and effect. This warranty gives specific legal rights. Other rights may vary according to local legislation. Obtaining Warranty Service Normally, the DECTRON INC. AUTHORIZED CONTRACTOR who installed the products will provide warranty service to the owner. Should the installing contractor be unavailable, contact your local Dectron, Inc. representative or the factory. Force Majeure Dectron Inc. will not be liable for delay or failure to provide warranty service due to government restrictions or restraints, war, strikes, material shortages, acts of God or other causes beyond Dectron Inc.’s control. Transportation Costs After the initial 30-day warranty period has expired, charges covering transportation of the defective part(s) to Dectron Inc. from the customer site and replacement part(s) from Dectron Inc. to the customer site are not covered by this warranty. Data subject to change without notice. Dectron, Inc. July 2013 69 STARTUP General Dectron Inc. warrants as set forth and for the time periods shown below that it will furnish to the original owner, through a Dectron Inc. authorized installing contractor or service organization, a new or rebuilt part for a part which has failed because of a defect in workmanship or material. Dectron Inc. reserves the right to apply handling and inspection charges in the case of parts or equipment improperly returned as defective whether under warranty or not. DK/DKV/RK Series Dehumidifier Owners Manual Warranty Terms of Limited Warranty Ecotron® Energy Recycling Dehumidifiers (packaged units) and Factory Supplied Accessories Optional Second - to Fifth-Year Compressor Warranty Optional Second - to Tenth-Year Compressor Warranty Under these warranties a new or re-built compressor will be supplied at Dectron Inc.’s expense, F.O.B. factory1 or FCA factory2, as applicable, provided the failed compressor is returned to the factory with transportation prepaid. These extended compressor warranties are subject to all the terms of the standard Ecotron® warranty but apply to the compressor only.3 Purchase of either of these extended warranties must be made before shipment of the unit. STARTUP Optional Second - to Fifth-Year Coil Warranty Optional Second - to Tenth-Year Coil Warranty Under these warranties a new or re-built air heat exchanger will be supplied at Dectron Inc.’s expense, F.O.B. factory1 or FCA factory2, as applicable,, provided the failed heat exchanger is returned to the factory with transportation prepaid. These extended coil warranties are subject to all the terms of the standard Ecotron® warranty but apply to the air heat exchangers listed in a) through e) only.3 Purchase of either of these extended warranties must be made before shipment of the unit. a) air cooling coil b) air reheat coil c) optional hot-water space-heating coil d) optional hot-glycol space-heating coil e) optional steam space-heating coil f) optional SmartSaver® evaporator g) optional SmartSaver® condenser Optional Second - to Fifth-Year MajorComponent Warranty Optional Second - to Tenth-Year Major- Component Warranty Under these warranties a new or re-built component will be supplied at Dectron Inc.’s expense, F.O.B. factory1 or FCA factory2, as applicable, provided the failed component is returned to the factory with transportation prepaid. These extended component warranties are subject to all the terms of the standard Ecotron® warranty but apply to the components listed in a) through f) only.3 Purchase of either of these extended warranties must be made before shipment of the unit. a) motor starters4 b) fan motor(s)4 c) water heat exchangers 5 d) solenoid valves and solenoids 4 e) blower fan and fan housings 7, 8, 9 f) variable-frequency drives 4, 7, 8 Optional Delayed Start-Up Warranty Under this warranty upon expiry of the initial 30-day warranty, and until completion of 34 months from date of shipment from Dectron Inc., if any part supplied by Dectron Inc. fails because of a defect in workmanship or material, Dectron Inc. will furnish a new or rebuilt part F.O.B. factory1 or FCA factory2, as applicable. No reimbursement will be made for expenses incurred in making field adjustments or replacements unless specifically re-approved by Dectron Inc. in writing beforehand. The optional delayed start-up warranty is only valid if all of the following conditions are met: 1&2. When goods are loaded onto the truck or container at the Dectron factory, title to goods as well as all shipping costs, insurance costs, and all other costs and risks become the responsibility of the recipient. 3. Does not cover labor costs. 4. where applied per nameplate and submittal specifications 5. where operated per specified water flow rates and water chemistry 7. where operated per the service requirements of the manual 8. where installed and operated per chemical-storage and water-chemistry recommendations of the manual 9. Blower bearings, blower belts, blower sheaves and blower-motor sheaves are not covered. U.S.A DECTRON INC. 10898 Crabapple Road Suite 103 Roswell, GA 30075 Tel.: 770-649-0102 or 1-800-676-2566 Fax: 770-649-0243 CANADA DECTRON INC. 4300 Poirier Boulevard Montreal, QC. H4R 2C5 Tel.: 514-334-9609 or 1-800-667-6338 or 1-888-DECTRON Fax: 514-334-9184 Δ Water or condensation are not allowed to enter the electrical panel. Δ Indoor units are stored in a dry and protected area. Δ Electrical power must not be connected. Δ Unit not tampered with or vandalized in any fashion. Δ Start-Up Report and Warranty Registration is completed and sent to the factory within one week of initial start-up. This optional delayed start-up warranty is subject to all the terms of the standard Ecotron® warranty. Purchase of this extended warranty must be made before shipment of the unit. Data subject to change without notice. 70 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Contents Operation Page 72 82 85 86 87 88 89 100 101 OPERATION Maintenance Schedule Supervisaire® Controller User Interface Map Set Point Adjustment Read Sensors Start, Stop, Reset Supervisaire® Controller Messages Supervisaire® Diagnostics Sensor Response Curves Isolation Valves Data subject to change without notice. Dectron, Inc. July 2013 71 DK/DKV/RK Series Dehumidifier Operation Owners Manual Maintenance Schedule The following list is important to the proper function and long life of the unit. Every Month Check the Air Filters • All units have intake air filters. The unit cannot work properly with dirty filters. • All dirty filters should be replaced with identical new filters. Filters for outdoor air should be moisture resistant. • Do not operate the unit for any amount of time without all filters in place. Check the blower belt • Check for excessive wear. Be sure the belt will operate another month. • Check the blower belt tension. Belts should not be so loose as to cause increased slip, nor so tight as to cause excessive shaft bearing wear. Check that the condensate drain pan(s) is clean. For indoor units• Remove all chemicals from the Ecotron® equipment room. Every Six Months Check that there are no bubbles in the sight glass after 10 minutes of compressor operation. See Startup - Adjustments. Check the compressor discharge temperature. See Startup - TXV Adjustment. Check that the heat wheel (if any) is not dirty. Clean as necessary. See Operation - Maintenance - Heat Wheel. Every Twelve Months OPERATION Check for blower bearing wear. Grease the blower bearings. • Use a high quality grease for HVAC applications. • Do not over-grease. Add grease until just a little oozes out from the bearing shield. Check the condensate drain pan for any accumulated residue. Clean as necessary. Check the air heat transfer coils for dirt and/or trash. • If the coils are dirty Δ Clean the coils with a solution of mild soap in warm water. Do not use corrosive cleaning agents. Δ Increase the frequency of filter replacement. Dirty filters leak dirt onto the coils. In the event of a future shutdown, leave power on the unit for the crankcase heaters if it is safe and possible to do so. To start the Ecotron® again, follow the steps in the STARTUP section of this manual. Should refrigeration service be necessary, do not allow anyone to close the refrigerant-receiver isolation valves or the remote-condenser (if any) isolation valves without following the procedures under Operation -Service Isolation Valves. Failure to follow these procedures may result in damage that is not covered by the warranty. Data subject to change without notice. 72 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Air Filters Maintenance Operation LE MP ma y ut La EVAPORATOR yo REHEAT COIL SA HEATING COIL FILTERS OUTDOOR AIR INTAKE There may be several air filters, some of which may not be readily visible. To be sure that all the filters are clean and in place, use the draw tabs to remove all the filters, then re-install them . Other units may have filters that lift out. In this case the filters will be directly accessible. Filters for outdoor air must be moisture resistant. va Check Air Filters ry. Controls SUPPLY AIR OPERATION C S O a N m M ST p AY R U les VA CT RY IO . N HORIZONTAL UNIT FILTER FILTER There may be several air filters, some of which may not be visible from the access panel. To be sure that all the filters are clean and in place, use the draw tabs to remove all the filters, then re-install them. VERTICAL UNIT draw tabs Data subject to change without notice. Dectron, Inc. July 2013 73 DK/DKV/RK Series Dehumidifier Operation Owners Manual Maintenance Blower Belts Belts should not be frayed, glazed, or excessively worn. Follow standard belt inspection procedures recommended by the belt manufacturer. To check belt tension, first disconnect electric power from the unit and follow all recommended safety precautions. Obtain and use a V-Belt tension gauge according to the instructions provided with it. Most major belt manufacturers provide or recommend a suitable gauge for their belts. In an emergency, the guidelines below may help until a belt tension gauge is obtained. Measure the distance in inches between the shaft centers. Multiply the number of inches by 1/64. This will be the deflection (D) in the diagram at right. ex: For S=32 inches, D= 32in x 1/64 = 1/2 in. Measure the diameter of the smaller sheave. Read the V-belt cross-section size from the belt label or from the unit nameplate. Adjust the belt tension to cause the force needed to produce the deflection D to be near that shown in the table on the next page. yv ma MP ut belt tensioning screw S O a N m M ST p AY R U les VA CT RY IO . N La yo SA S ary . Horizontal Unit LE D C OPERATION OPERATION ex: For the above example of 32 inches between shaft centers, assume that the belt is a new B60 and that the smaller sheave is 7 inches in diameter. From the table on the next page, a new B60 belt with a 7 inch small sheave should require 6.3 pounds of force to produce the 1/2 inch deflection. Adjust the belt tension until the measured force necessary to produce the 1/2 inch deflection is about 6.3 pounds. V-belt(s) V-belt(s) Vertical Unit belt tensioning screw Data subject to change without notice. 74 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Maintenance V-Belt Tensioning Belt size A B C D E Small Deflection force (lbs.) sheave Re-tensioning Initial diameter Installation Max. Min. (in) 3.0 - 3.4 3.3 2.9 2.2 3.5 3.1 2.4 3.6 - 4.2 3.7 3.3 2.5 4.6 - 6.0 4.6 - 5.4 5.1 4.0 6.0 5.6 - 7.4 5.5 4.2 6.3 5.7 4.4 8.6 - 9.4 6.6 7.0 - 8.5 13.2 11.5 8.8 13.9 9.0 - 12.0 12.1 9.3 12.6 9.7 14.6 13.0 - 16.0 12.0 - 15.5 26.5 22.9 17.6 16.0 - 18.0 27.8 24.3 18.7 29.1 25.6 19.6 22.0 - 27.0 17.7 - 23.6 39.7 34.4 26.5 23.7 - 31.5 41.7 36.2 27.8 43.7 37.9 29.1 31.6 - 39.3 AX 2.1 - 3.4 3.6 - 4.2 4.6 - 6.0 4.4 4.6 4.9 3.7 4.0 4.2 2.9 3.1 3.3 BX 3.7 - 5.4 5.6 - 7.4 8.6 - 9.4 7.7 8.2 8.6 6.6 7.1 7.5 5.1 5.5 5.7 CX 5.8 - 8.5 9.0 - 12.0 13.0 - 16.0 17.2 18.1 19.0 15.0 15.7 16.5 11.5 12.1 12.8 2.65 - 3.35 3V 3.65 - 4.12 4.5 - 5.6 6.0 - 10.6 7.1 - 8.5 5V 9.0 - 11.8 12.5 - 16.0 5.5 6.4 7.5 8.6 4.8 5.7 6.6 7.5 3.9 4.4 5.1 5.7 19.2 23.3 27.3 16.7 20.3 23.8 13.0 15.6 18.5 12.5 - 16.0 8V 17.0 - 20.0 21.2 - 24.8 50.9 57.1 61.3 44.3 49.8 53.3 34.4 38.6 41.4 2.2 - 3.35 3VX 3.65 - 4.12 4.5 - 5.6 6.0 - 10.6 5.5 6.4 7.5 8.6 4.8 5.7 6.6 7.5 3.9 4.4 5.0 5.7 4.4 - 8.5 5VX 9.0 - 11.8 12.5 - 16.0 19.2 23.3 27.3 16.7 20.3 23.8 13.0 15.6 18.5 Operation Where sheaves carry more than one belt, never replace only one belt. If any belt must be replaced, replace all the belts with new ones. When replacing multiple belts use only new belts from the same manufacturer and the same lot number, or use matched belts. Failure to do this will result in severe belt wear. When removing or replacing belts, always relieve the belt tension to position the belts. Never prize the belts with a screwdriver or other tool. Belt sheaves must be properly aligned, as shown below. Sheave Sheave Straight edge While the sheaves were aligned at the factory, future adjustments may cause varying degrees of misalignment. A common problem is parallel misalignment, as shown below. Parallel misalignment causes excessive belt, sheave, and bearing wear. Sheave Sheave OPERATION Blower Belts Straight edge Another common problem is angular misalignment, as shown below. Angular misalignment causes excessive belt, sheave, and bearing wear. Sheave Sheave Straight edge Data subject to change without notice. Dectron, Inc. July 2013 75 DK/DKV/RK Series Dehumidifier Operation Owners Manual Maintenance Optional Wheel Some units may have heat recovery wheels. In this case, the wheels may have to be cleaned occasionally to maintain proper operation. 4 OPERATION To re-install the segments: 1. Turn off electric power. 2. With the embedded stiffener facing the motor side of the wheel, insert the narrow end of the segment into the hub. 3. Holding the segment by the two upper corners, press the segment into the hub and inward against the wheel spokes. 4. Close the segment retainers, and latch them with the retainer catches. 5. In order to keep the wheel balanced and easy to turn, next install the opposite segment. 6. Repeat until all segments are installed. 1 5 2 To remove the segments: 1. Turn off electric power. 2. Unlock the retainer catches for one segment. Move the retainer up and away to allow the segment to be removed. 3. Pull outward and upward to remove one segment. 4. Store the segment so that it does not become bent or twisted, and so that the media does not get scratched or deformed. 5. In order to keep the wheel balanced and easy to turn, next remove the opposite segment. 6. Repeat until all segments are removed. To wash the segments: 1. If any loose particles are on the surface of the wheel, brush them off carefully. Do not deform the media. 2. Soak the segments in a 5% solution of non-acid based coil cleaner, such as Acti-Klean (W.W. Grainger 5W042). Alternatively, soak the segments in warm water with alkaline detergent. 3. When all dirt films have dissolved or loosened, remove the segments and rinse them with clean water. 4. Drain the excess water from the segments. 7 6 8 3 Segment Hub Segment Retainer Wheel Rim Segment Retainer Catch Wheel Spoke Data subject to change without notice. 76 Dectron, Inc. July 2013 Optional Wheel DK/DKV/RK Series Dehumidifier Maintenance Some units may have heat wheels, in which case the air seals may need adjusting occasionally, e.g. after each cleaning. To adjust the air seals: 1. Turn off the electric power. 2. By hand, rotate the wheel clockwise until two opposing spokes are hidden behind the bearing support beam. 3. Loosen air seal screws. 4. Slide the seals slightly away from the wheel. 5. Place a folded peice of paper between the seals and the wheel. 6. Slide the seals toward the wheel until there is a slight friction on the paper as it is moved back and forth along the length of the spoke. 7. Tighten the seal screws. 8. Check again for a slight friction on the paper as described above. Remove paper before operating. 9. Some wheels may have a separate hub seal. Use above method to adjust any hub seal. Operation spoke seal paper screw bearing support beam OPERATION Owners Manual Data subject to change without notice. Dectron, Inc. July 2013 77 DK/DKV/RK Series Dehumidifier Operation Owners Manual Maintenance Optional Wheel Push Belt (shown in place) Wheel Rim Wheel Bearing Support Beam Hub & Collar Shaft Pull To replace a continuous wheel belt: 1. Turn off electric power. 2. Remove the belt-side bearing access plate, if any. 3. Loosen the bearing collar set screw. 4. Using a soft drift in the drift pin hole, tap the bearing Lock Collar collar in the direction of wheel rotation. This should loosen the bearing from the shaft. Locking Nut 5. Remove the bearing collar. Lock 6. Remove the nuts securing the bearing housing to Collar Bearing Housing the bearing support beam. 7. Remove the bearing from the shaft. 8. Remove the air seals (or hub seal, if any) from the bearing support beam. Set 9. Remove the old belt. Screw 10. Push a small loop of the new belt throught he space between the shaft and the bearing support beam as shown. Drift Hole 11. Carefully pull most of the belt through the gap. Do not cut or scrape the belt on metal parts. Leave enough belt to loop over the shaft. 12. Loop the trailing end of the belt over the shaft. New Belt 13. Re-install the bearing onto the wheel shaft, being careful to align the locating pins into their holes in the bearing support beam. Secure the bearing with the locking nuts and washers. 14. Work the new belt around the wheel and the pulley. 15. Re-install the air seals or the hub seal (if any). See previous page for seal adjustment procedure. 16. Re-install the bearing locking collar. Using the soft drift, tighten the collar by rotating the collar opposite the direction of wheel rotation. Tighten the set screw. 17. Re-install the Bearing Access Cover. 18. Connect electric power and run the wheel. Be sure the wheel runs freely. Be sure the belt tracks evenly. OPERATION Data subject to change without notice. 78 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Check Refrigerant Level Maintenance Operation Indoor Horizontal Unit Indoor Vertical Unit Sight Glass S Bubbles in the sight glass indicate problems such as a possible loss of refrigerant. Sight Glass O a N m M ST p AY R U les VA CT RY IO . N Be sure there are no bubbles or droplets in the refrigerant sight glasses after five minutes of compressor operation. If bubbles or droplets are noted, contact Dectron or a Dectron-certified technician. OPERATION C Oil droplets in the sight glass may indicate severe problems such as loss of refrigerant. Outdoor Horizontal Unit After 5 minutes of compressor operation, the sight glass should be clear and full of liquid refrigerant. Some units have sight glasses located behind transparent windows in access panels. Data subject to change without notice. Dectron, Inc. July 2013 79 DK/DKV/RK Series Dehumidifier Operation Maintenance Owners Manual Check Discharge Temps. The temperature of the refrigerant leaving the compressor should be between 180°F and 200°F (82°C to 93°C) after 20 minutes of continuous compressor operation. For units equipped with the Supervisaire® controller, check this temperature as shown below. If the temperature is not between 180°F and 200°F, the refrigerant expansion valve may need adjustment. Contact Dectron or a Dectron-certified technician. Default Screen MAIN MENU SCROLL DOWN FOR OPTIONS Press ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F Esc repeatedly to reach screen below. For a controller interface map, see Operation User Interface Map. Prg ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F Esc GO TO SENSOR READINGS Prg SUPPLY AIR TEMP READING . . . xxx F Esc Esc Press repeatedly to reach screen below. DISCHARGE 1 TEMP READING . . . xxx % Esc Press repeatedly to reach screen below (two-compressor units only). OPERATION DISCHARGE 2 TEMP READING . . . xxx % Esc Press DISCHARGE 3 TEMP READING . . . xxx % Esc This is the temperature of the refrigerant leaving the second compressor (where so equipped). repeatedly to reach screen below (two-compressor units only). Esc Press This is the temperature of the refrigerant leaving the first compressor. This is the temperature of the refrigerant leaving the third compressor (where so equipped). repeatedly to reach screen below (two-compressor units only). DISCHARGE 4 TEMP READING . . . xxx % This is the temperature of the refrigerant leaving the fourth compressor (where so equipped). Data subject to change without notice. 80 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Optional Special Operating Sequence Operation OPERATION This page intentionally left blank. Data subject to change without notice. Dectron, Inc. July 2013 81 82 Esc Esc Esc Esc GO TO SET POINTS GO TO SENSOR READINGS GO TO AUTO/OFF CONTROLS GO TO STATUS MESSAGES Esc MAIN MENU SCROLL DOWN FOR OPTIONS Esc Esc Esc Esc xxF xxF xxF Off Off COMPRESSOR #3 COMPRESSOR #4 DEWPOINT SET SUPPLY AIR SET W/COMPR. ON W/COMPR. OFF Off Off Off BLOWER COMPRESSOR #1 COMPRESSOR #2 ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F Default Screen Prg SCROLL DOWN TO VIEW STATUS MESSAGES PROGRAM: xxxxxxxx or NOTE: TURNING COMPR. 4 AUTO ENTER TO CONFIRM ESC TO CANCEL Esc Esc ENTER USER PASSWORD 00000 PRESS ESC TO EXIT Esc (Optional) Press or to toggle between AUTOMATIC and OFF. TURNING COMPR. 3 AUTO ENTER TO CONFIRM ESC TO CANCEL DEWPOINT SET SUPPLY AIR SET W/COMPR. ON W/COMPR. OFF xxF xxF xxF change set points. or to Esc Esc Esc DISCHARGE 1 TEMP READING . . . xxxF EVAP 1 AIR TMEP READING . . . xxxF SUPPLY AIR TEMP READING . . . xxx % Alarm messages will be displayed. See OPERATION - CONTROLLER DIAGNOSTICS. SCROLL DOWN TO VIEW ALARM MESSAGES button will illuminate. Press it to view the ALARM screen. In the event of a failure, the DK/RK Series Supervisaire® User Interface Map to navigate around thescreen. Press Press (Optional) Press or to toggle between AUTOMATIC and OFF. (Optional) Press or to toggle between AUTOMATIC and OFF. TURNING COMPR. 2 AUTO ENTER TO CONFIRM ESC TO CANCEL Esc Press or to toggle between AUTOMATIC and OFF. Press or to toggle between AUTOMATIC and OFF. Screens shown in dashed lines are optional and may not appear on all units. TURNING COMPR. 1 AUTO ENTER TO CONFIRM ESC TO CANCEL Esc Esc TURNING BLOWER AUTO ENTER TO CONFIRM ESC TO CANCEL See Operation - Status Messages for a list of possible messages and their meanings. Esc Esc OPERATION Data subject to change without notice. Dectron, Inc. July 2013 Data subject to change without notice. Dectron, Inc. July 2013 83 Esc Esc Esc hh:mm GO TO SERVICE <MENU DoW GO TO CLOCK SETTINGS GO TO OCCUPIED PERIOD OPTIONS Esc Esc Esc GO TO SET WEEKDAY GO TO SET TIME SCROLL DOWN FOR OPTIONS CLOCK SETTINGS Esc Esc Prg CURRENT: DoW SET DAY OF WEEK n SET TIME hh:mm ENTER USER PASSWORD 00000 PRESS ESC TO EXIT OPERATION Esc OCCUPIED SELECTION FOLLOWS SCHEDULE UP/ DOWN TO CHANGE ENTER TO CONFIRM Esc Esc Esc Esc OCCUPIED SELECTION FORCED ON UP/ DOWN TO CHANGE ENTER TO CONFIRM OCCUPIED SELECTION FORCED OFF UP/ DOWN TO CHANGE ENTER TO CONFIRM OCCUPIED SELECTION FOLLOWS SCHEDULE UP/ DOWN TO CHANGE ENTER TO CONFIRM ENTER USER PASSWORD 00000 PRESS ESC TO EXIT Esc Esc Esc Esc Esc Esc Esc OCCUPIED cc:dd hh:ii pp:rr SATURDAY aa:bb TO ee:gg TO kk:nn TO OCCUPIED cc:dd hh:ii pp:rr FRIDAY OCCUPIED aa:bb TO cc:dd ee:gg TO hh:ii kk:nn TO pp:rr THURSDAY OCCUPIED aa:bb TO cc:dd ee:gg TO hh:ii kk:nn TO pp:rr WEDNESDAY aa:bb TO ee:gg TO kk:nn TO TUESDAY OCCUPIED aa:bb TO cc:dd ee:gg TO hh:ii kk:nn TO pp:rr MONDAY OCCUPIED aa:bb TO cc:dd ee:gg TO hh:ii kk:nn TO pp:rr SUNDAY OCCUPIED aa:bb TO cc:dd ee:gg TO hh:ii kk:nn TO pp:rr Esc ENTERING DEWPOINT READING . . . xxxF DK/DKV/RK Series Dehumidifier Operation Owners Manual Supervisaire® Controller Interface Map Default Screen MAIN MENU SCROLL DOWN FOR OPTIONS Esc ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F Prg PROGRAM: xxxxxxxx This displays the version of the operating program. Esc Esc GO TO STATUS MESSAGES Esc GO TO AUTO/OFF CONTROLS Esc GO TO SENSOR READINGS Esc There are many possible status messages. This screen is the gateway to other screens that display these status messages. See Operation - Controller Messages. The unit ships with the major components disabled in software. This screen is the gateway to other screens used to enable or disable the major components of the Ecotron®. See Startup Enable Operation. There are several sensors throughout the unit. This screen is the gateway to other screens used to display the readings of these sensors. See Startup - Read Sensors or Operation Read Sensors. GO TO SET POINTS This screen is the gateway to other screens used for setting the operating set points of the unit. The set points are protected by a user password. See Startup - Adjust Set Points or Operation - Adjust Set Points. GO TO OCCUPIED PERIOD OPTIONS This screen appears only on units with the optional Occupation feature. This screen is the gateway to other screens used to adjust or trigger Occupied periods. See Startup - Pre-Startup Adjustments. GO TO CLOCK SETTINGS This screen appears only on units with the optional Occupation feature. This screen is the gateway to other screens used to set the internal clock (where used). See Startup - Pre-Startup Adjustments. Esc OPERATION Esc Esc GO TO SERVICE MENU Esc This screen is the gateway to other screens used for service monitoring or modification. Consult Dectron or a Dectroncertified technician. Data subject to change without notice. 84 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Set-Point Adjustment Operation The operating set points are viewed and adjusted as shown below. If prompted for a password, enter 1793 for units built before April 2005, and 1793 or 17 for units built after April 2005. To clear the password, select YES when prompted to log off. ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F Default Screen MAIN MENU SCROLL DOWN FOR OPTIONS Press Esc Prg ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F Esc repeatedly to reach screen below. Press screen. GO TO SET POINTS Esc Esc DEWPOINT SET aa F SUPPLY AIR SET W/COMPR. ON bb F W/COMPR. OFF cc to move the cursor around the aa is the maximum allowable dew point of the supply air. bb is the supply air temperature set point when the compressor(s) is running (via proportional reheat). If a change is desired, press as needed to move the cursor to bb, then press or to change the set point. OPERATION cc is the supply air temperature set point for the internal heater. If a change is desired, press as needed to move the cursor to cc, then press or to change the set point. Data subject to change without notice. Dectron, Inc. July 2013 85 DK/DKV/RK Series Dehumidifier Owners Manual Operation Read Sensors The values of some sensor signals are displayed on the default screen, as at right. To read all sensors, follow the steps below: Prg ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F Esc Default Screen MAIN MENU SCROLL DOWN FOR OPTIONS HUMIDITY aaa / bbb % ROOM AIR ccc / ddd F menu enter Press menu repeatedly to reach screen below. GO TO SENSOR READINGS prog. SUPPLY AIR TEMP READING . . . xxxF This screen displays the temperature of the supply air, as measured at the Ecotron® supply blower. EVAP 1 AIR TEMP READING . . . xxxF This screen displays the temperature of the air leaving the evaporator of the first refrigeration circuit. DISCHARGE 1 TEMP READING . . . xxxF This screen displays the temperature of the hot refrigerant gas leaving the #1 compressor. This is important to a proper startup. See Startup - TXV Adjustment. ENTERING DEWPOINT READING . . . xxxF This screen appears only on units with the optional outdoor air temperature sensor. It displays the temperature of the outdoor air. OPERATION This is a sample. The order and number of sensor screens may vary between units, depending on options ordered. menu menu menu menu (CALCULATED) menu EVAP 2 AIR TEMP READING . . . xxxF This screen appears only on units with two refrigeration circuits. It displays the temperature of the air leaving the evaporator of the second refrigeration circuit. to other readings Data subject to change without notice. 86 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Start, Stop, & Reset Operation Start & Stop The blower and compressor(s) can be switched between AUTO and OFF. Turning the blower OFF also inhibits compressor operation. See Startup - Enable Operation. Prg ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F Esc Reset If the message “MANUAL RESET REQUIRED” appears among the unit status messages, go to the ALARM menu. ALARM MESSAGES SCROLL DOWN TO VIEW For a list of alarm messages, see Operation Controller Diagnostics. --- ALARM --XXXXXXXX Correct the cause of each alarm before attempting to reset. --- ALARM --XXXXXXXX OPERATION NEVER BYPASS ANY SAFETY OR LIMIT CONTROL. Correct all problems described in alarm messages above. MANUAL REST REQUIRED ENTER TO RESET Press to initiate the resetting process. If prompted for a password, enter 1793. PERFORMING MANUAL RESET ENTER TO CONFIRM ESC TO CANCEL Press to proceed with the resetting process. Press Esc to cancel the resetting process. Display returns. Data subject to change without notice. Dectron, Inc. July 2013 87 DK/DKV/RK Series Dehumidifier Operation Owners Manual Supervisaire® Controller Messages Prg Default Screen MAIN MENU SCROLL DOWN FOR OPTIONS menu enter Press ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F Esc ENTERING R/H xxx % ENTERING AIR - xxx.x F SUPPLY AIR xxx.x F repeatedly to reach screen below. GO TO STATUS MESSAGES menu enter menu STATUS MESSAGES SCROLL DOWN TO VIEW Press repeatedly to view all messages. See messages and meanings below. OPERATION A/C ON - The air-conditioning feature is operating. AIR HEATING CALL - The temperature of the room is below set point minus offset minus differential. - The minimum OFF time for compressor 1 has not elapsed. ASCT 1 ON ASCT 2 ON - The minimum OFF time for compressor 2 has not elapsed. - First stage auxiliary air heating is ON. AUX. AIR HEATING ON STAGE 1 AUX. AIR HEATING ON STAGE 2 - Second stage auxiliary air heating is ON. AUX. AIR HEATING ON STAGE 3 - Third stage auxiliary air heating is ON. AUX. AIR HEATING ON STAGE 4 - Fourth stage auxiliary air heating is ON. - Blower is operating. BLOWER ON - The blower is turned off by remote manual input. BLOWER REMOTE SWITCH OFF BLOWER TURNED OFF - See Startup - Enable Operation. COMPRESSOR 1 EMERGENCY SWITCH OFF - The manual ON/OFF switch is OFF. - Compressor 1 is preparing to shut down. COMPRESSOR 1 PUMPDOWN COMPRESSOR 2 PUMPDOWN - Compressor 2 is preparing to shut down. COMPRESSOR 1 TURNED OFF - See Startup - Enable Operation. COMPRESSOR 2 EMERGENCY SWITCH OFF - The manual ON/OFF switch is OFF. - See Startup - Enable Operation. COMPRESSOR 2 TURNED OFF COOLING CALL - The temperature of the room is above set point plus offset plus differential. DEHUMIDIFICATION CALL - The relative humidity of the room is above set point plus differential. - One or more compressors are operating. DEHUMIDIFICATION ON EVAPORATOR DAMPER CLOSED - The evaporator bypass damper is closed to divert air to the evaporator. GAS BOILER ON - The gas boiler on units so equipped is operating. - Compressor 2 is first stage. LEAD LAG ON MANUAL RESET REQUIRED - A fatal alarm has occurred. See Operation - Start, Stop & Reset. OCCUPIED PERIOD - Time-of-day is defined as that in which people are usually present. - Refrigerant is being diverted through the outdoor condenser for oil return. OIL RETURN MODE 1 ON OIL RETURN MODE 2 ON - Refrigerant is being diverted through the outdoor condenser for oil return. PLEASE WAIT... Compressor 1 will auto reset - A possibly fatal alarm is being analyzed. PLEASE WAIT... Compressor 2 will auto reset - A possibly fatal alarm is being analyzed. - Supply air temperature is limited to the return air temperature. ZERO REHEAT ON Data subject to change without notice. 88 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Supervisaire® Controller Diagnostics ALARM POSSIBLE CAUSES A/C LOW WATER FAULT BLOWER OVERLOAD Operation CHECKS & CORRECTIONS Reduction of cooling water flow. • Be sure the correct water flow is present. Water pressure switch incorrectly adjusted. • Adjust switch. See Startup - Adjust Cabinet doors left open • Close all cabinet doors. Reset overload. Excessive air flow • Be sure air flow is as specified on unit Flow Switches. nameplate. Blower motor current too high Check that the blower motor current is not higher than the unit nameplate value • Adjust the branch circuit voltage to the nameplate value ±10%. • Adjust the blower sheaves to produce design air flow. Unexpected open switch circuit Check for loose terminals on overload device auxiliary switch • Tighten as necessary Check for continuity of overload device auxiliary switch • Replace as necessary Defective overload device Replace overload device as necessary. Contact Dectron or your Dectron representative for referral to a Dectron-certified technician. Data subject to change without notice. Dectron, Inc. July 2013 89 OPERATION Overload device manual switch is Check switch position visually OFF • Press the OFF switch, then press the ON switch. DK/DKV/RK Series Dehumidifier Operation ALARM COMPRESSOR 1 HIGH PRESSURE FAULT or COMPRESSOR 2 HIGH PRESSURE FAULT Owners Manual Supervisaire® Controller Diagnostics POSSIBLE CAUSES CHECKS & CORRECTIONS Manual isolation valves not opened at installation • Be sure all isolation valves are opened. Loss of cooling water on watercooled units • Be sure water flow is correct. See Startup - Adjust Flow Switches. • Be sure the cooling water temperature is not above that stated on the unit nameplate. Loss of air flow in remote condensers on air-cooled units • Be sure the remote condenser safety switch is ON. Be sure that all fuses (if any) are good. • For polyphase condensers, be sure that all phases are present. Be sure the fans turn the proper direction. • Be sure that there are no walls, fences, bushes, or other air flow interruptions near the remote condenser. See Installation Locate Remote Condenser. • Be sure the remote condenser is clean. Improperly adjusted pressure control valve(s) • Consult Dectron or a Dectron-certified Return air temperature too high • Be sure set points correspond to those technician. shown on the unit nameplate. • Be sure controller outputs are not calling for heating. See unit wiring diagram. OPERATION Fouled or damaged reheat coil • Be sure reheat coil is not coated with foreign materials such as dirt from unfiltered outdoor air or scum from spas / hot tubs. • Be sure reheat coil is not corroded. Corrosion is due to poor chemical storage or excessive chloramine production. Excess refrigerant • This will be most common in warm weather. Be sure the total refrigerant charge corresponds to the amount shown on the unit nameplate. Defective high pressure switch • Consult Dectron or a Dectron-certified technician. Data subject to change without notice. 90 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Supervisaire® Controller Diagnostics ALARM COMPRESSOR 1 HIGH DISCHARGE FAULT or COMPRESSOR 2 HIGH DISCHARGE FAULT Operation POSSIBLE CAUSES CHECKS & CORRECTIONS Improperly adjusted refrigerant expansion valve(s) • Consult Dectron or a Dectron-certified Excessive return air flow technician. • Contact an air-balance service to be sure the air flow is within tolerance. Inadequate refrigerant • With the compressor running, check for bubbles in the sight glass(es). If bubbles are present contact Dectron or a Dectroncertified technician. Defective temperature sensor • Consult Dectron or a Dectron-certified technician. Improperly adjusted refrigerant expansion valve(s) Inadequate return air flow technician. • Contact an air-balance service to be sure the air flow is within tolerance. Improperly adjusted pressure control valve(s) COMPRESSOR 1 LOW PRESSURE FAULT or COMPRESSOR 2 LOW PRESSURE FAULT • Consult Dectron or a Dectron-certified Manual isolation valves not opened at installation Inadequate refrigerant charge • Consult Dectron or a Dectron-certified technician. • Be sure all manual isolation valves are open. • The refrigerant sight glasses must be completely full whenever the compressor has been running for at least five minutes. If this is not the case, consult Dectron or a Dectron certified technician. Low room air temperature OPERATION COMPRESSOR 1 LOW DISCHARGE FAULT or COMPRESSOR 2 LOW DISCHARGE FAULT • Be sure set points correspond to those shown on unit nameplate. Be sure room heater is working properly. Low room humidity • Be sure set points correspond to those shown on unit nameplate. Be sure outdoor makeup air flow rate is not excessive. Inadequate return air flow • Contact an air-balance service to be sure the air flow is within tolerance. Clogged refrigerant filter-drier • Consult Dectron or a Dectron-certified technician. Improperly adjusted pressure control valves • Consult Dectron or a Dectron-certified Defective refrigerant expansion valve • Consult Dectron or a Dectron-certified Defective pressure switch • Consult Dectron or a Dectron-certified technician. technician. technician. Data subject to change without notice. Dectron, Inc. July 2013 91 DK/DKV/RK Series Dehumidifier Operation ALARM COMPRESSOR 1 OIL FAILURE or COMPRESSOR 2 OIL FAILURE Owners Manual Supervisaire® Controller Diagnostics POSSIBLE CAUSES Low oil level in compressor crankcase CHECKS & CORRECTIONS • Check oil level in compressor oil sight glass. • Be sure the evaporator pressure does not operate below 50 PSI for significant periods. • For units with air-cooled air conditioning, be sure the refrigerant tubes to the remote condenser are not longer than the length specified on the unit nameplate. • For units with air-cooled air conditioning, be sure the refrigerant tubes to the remote condenser are the same O.D. as specified on the unit nameplate. • For units with air-cooled air conditioning where the remote condenser is more than 20 feet above the Ecotron, be sure the hot gas riser tube(s) have P-traps as specified in this manual. Excessive compressor wear • Consult Dectron or a Dectron-certified technician. Compressor oil pump failure • Consult Dectron or a Dectron-certified technician. OPERATION Compressor oil pressure switch failure • Oil pressure should be more than 10 PSI above evaporator pressure. • Consult Dectron or a Dectron-certified technician. COMPRESSOR 1 OVERHEAT or COMPRESSOR 2 OVERHEAT Applied voltage out of tolerance or out of balance • A qualified person should be sure that the Low oil level in compressor crankcase • See “OIL PRESSURE FAILURE” above Evaporator pressure too low or hot gas bypass valve open too long (when so equipped). • Be sure the evaporator pressure does not Defective refrigerant expansion valve • Consult Dectron or a Dectron-certified Defective compressor overheat detector • Consult Dectron or a Dectron-certified average applied voltage is within ±10% of the nameplate value and that the individual phase voltages are within ±1% of the average voltage (See NEMA MG-1). operate below 55 PSI for significant periods. Be sure HGBV is properly adjusted. technician. technician. Data subject to change without notice. 92 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Supervisaire® Controller Diagnostics ALARM COMPRESSOR 1 OVERLOAD or COMPRESSOR 2 OVERLOAD POSSIBLE CAUSES Operation CHECKS & CORRECTIONS Applied voltage out of tolerance or out of balance • A qualified person should be sure that the average applied voltage is within ±10% of the nameplate value and that the individual phase voltages are within ±1% of the average voltage (See NEMA MG-1). Reset overload. Evaporator bypass damper closed when room is above 78°F and 40%rh. • Be sure evaporator bypass damper is fully open when the room temperature is above 78°F and the room relative humidity is above 40%. • Manual dampers should be locked in the open position when room is above 78°F and 40%rh. Automatic dampers have a motorized actuator to open the damper when the temperature of the air leaving the evaporator is above 50°F. Reset overload. Room temperature too high • Be sure that the room temperature set point is near the value specified on the unit nameplate. Reset overload. COMPRESSOR 1 PUMPDOWN TOO LONG or COMPRESSOR 2 PUMPDOWN TOO LONG Room humidity too high • Be sure that the room humidity set point is near the value specified on the unit nameplate. Reset overload. Defective compressor overload device • Compare trip current to maximum current specified on unit nameplate. A qualified person should adjust or replace the overload as necessary. Leaking liquid line solenoid valve • Consult Dectron or a Dectron-certified technician. Leaking hot gas bypass valve(s) shutoff solenoid valve(s) (where so equipped) • Consult Dectron or a Dectron-certified technician. Data subject to change without notice. Dectron, Inc. July 2013 93 OPERATION • Be sure that the space heater is responding to signals from the Ecotron®. Reset overload. DK/DKV/RK Series Dehumidifier Operation ALARM COOLING PERFORMANCE ALARM Owners Manual Supervisaire® Controller Diagnostics POSSIBLE CAUSES A minimum temperature difference across the evaporator has not been produced after five minutes of refrigeration. CHECKS & CORRECTIONS • Be sure the associated refrigerant sight glass is full. No droplets should be visible onthe inside of the sight glass. No bubbles should be visible in the sight glass after five minutes of operation. • Be sure the return air flow rate is as specified. • Be sure all manual isolation valves are fully open. • Be sure the refrigerant filter-drier is not clogged. • Be sure the refrigerant expansion valve is properly adjusted. • Be sure the pressure control valves have not been adjusted. Contact Dectron or a Dectron- certified technician. • Be sure the sensor cable is properly con- OPERATION DISCHARGE 1 SENSOR FAULT or DISCHARGE 2 SENSOR FAULT The signal from the compressor discharge temperature sensor is out of range. DIRTY FILTERS The signal from the filter differential pressure sensor indicates dirty filters. • Install clean filters. Defective sensor or wires. • Check for continuity. nected to both the sensor and the controller. • Disconnect the cable from the controller and check the resistance of the sensor and cable combination. Compare to the chart at the end of this section. If the resistance is outside the allowable range, disconnect the cable from the sensor and be sure the resistance of the cable is above 1 million ohms. Connect the ends of the cable wires together and be sure the cable resistance is less than 5 ohms. If either condition fails, replace cable. Compare the resistance of the sensor itself to the sensor resistance chart. Replace sensor if necessary. Connect sensor and cable to controller. Data subject to change without notice. 94 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Supervisaire® Controller Diagnostics ALARM POSSIBLE CAUSES EVAPORATOR 1 SENSOR FAULT or EVAPORATOR 2 SENSOR FAULT The signal from the evaporator leaving air temperature sensor is out of range. EXPANSION MODULE COMMUNICATION FAILURE Cable or addressing problem FIRESTAT ALARM Fire or smoke present Where so equipped, the Ecotron® will shut down. Fire alarm (by others) has been tested but not completely reset Broken fire alarm wiring (by others) Shorted fire alarm wiring (by others) Operation CHECKS & CORRECTIONS • Be sure the sensor cable is properly connected to both the sensor and the controller. • Disconnect the cable from the controller and check the resistance of the sensor and cable combination. Compare to the chart at the end of this section. If the resistance is outside the allowable range, disconnect the cable from the sensor and be sure the resistance of the cable is above 1 million ohms. Connect the ends of the cable wires together and be sure the cable resistance is less than 5 ohms. If either condition fails, replace cable. Compare the resistance of the sensor itself to the sensor resistance chart. Replace sensor if necessary. Connect sensor and cable to controller. FREEZESTAT ALARM The signal from freezestat (where so equipped) indicates imminent freezing of the heating coil. Where so equipped, the Ecotron® will shut down. • Consult Dectron or a Dectron-certified technician. OPERATION • Be sure there is no fire. • Contact your fire alarm technician. • Contact your fire alarm technician. • Contact your fire alarm technician. Heating fluid (water or steam) too cold • Be sure heating source is operating and Inadequate flow of heating fluid (water or steam) Excessive outdoor air flow rate • Be sure flow rates are as specified. properly adjusted. • Be sure the outdoor air intake rate is as specified. Outdoor air temperature unexpectedly low. • Outdoor air intake rate may have to be Return air filters too dirty • Replace with clean filters. • Check that the air temperature at the heating Defective freezestat reduced during coldest weather. coil is approximately 40°F when the freezstat trips. Data subject to change without notice. Dectron, Inc. July 2013 95 DK/DKV/RK Series Dehumidifier Operation ALARM Owners Manual Supervisaire® Controller Diagnostics POSSIBLE CAUSES CHECKS & CORRECTIONS GAS BOILER ALARM A general failure of an associated gas boiler supplied by Dectron. • Consult the boiler manual. GLYCOL PUMP OVERLOAD The motor protection device for the glycol pump (where so equipped) has tripped. Excessive glycol viscosity • Be sure the glycol is of the proper type and concentration. Glycol temperature colder than expected. • Be sure glycol temperature is above -30°F. Applied voltage out of tolerance or out of balance • A qualified person should be sure that the HUMIDITY SENSOR FAULT Sensor cable disconnected • Be sure the sensor cable is properly connect- Humidity sensor signal is out of range. Sensor cable broken or shorted average applied voltage is within ±10% of the nameplate value and that the individual phase voltages are within ±1% of the average voltage (See NEMA MG-1). Reset overload. ed to both the sensor and the controller. • Disconnect the cable from the sensor and OPERATION from the controller and be sure the resistance of the cable is above 1 million ohms. Connect the ends of the cable wires together at the sensor end and be sure the cable resistance is less than 5 ohms. If either condition fails, replace the cable. Defective sensor • Compare the output signal of the sensor itself to the expected value. Replace sensor if necessary. Connect sensor and cable to controller. MAX. EXHAUST BLOWER OVERLOAD (Purge mode equipped units) The motor protection device for the larger exhaust air blower has tripped. Excess maximum-exhaust air flow rate • Be sure the Maximum Exhaust air flow rate is Applied voltage out of tolerance or out of balance • A qualified person should be sure that the as specified. Excess air flow can overload some blowers. average applied voltage is within ±10% of the nameplate value and that the individual phase voltages are within ±1% of the average voltage (See NEMA MG-1). Reset overload. Data subject to change without notice. 96 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Supervisaire® Controller Diagnostics ALARM POSSIBLE CAUSES MIN. EXHAUST BLOWER OVERLOAD (Purge mode equipped units) The motor protection device for the larger exhaust air blower has tripped. Operation CHECKS & CORRECTIONS Excess minimum-exhaust air flow rate • Be sure the Minimum Exhaust air flow rate is Applied voltage out of tolerance or out of balance • A qualified person should be sure that the Sensor cable disconnected OUTDOOR HUMIDITY SENSOR FAULT Outdoor humidity sensor (where so equipped) sig- Sensor cable broken or shorted nal is out of range. Defective sensor as specified. Excess air flow can overload some blowers. average applied voltage is within ±10% of the nameplate value and that the individual phase voltages are within ±1% of the average voltage (See NEMA MG-1). Reset overload. • Be sure the sensor cable is properly connected to both the sensor and the controller. • Disconnect the cable from the sensor and from the controller and be sure the resistance of the cable is above 1 million ohms. Connect the ends of the cable wires together at the sensor end and be sure the cable resistance is less than 5 ohms. If either condition fails, replace the cable. • Compare the output signal of the sensor itself OUTDOOR TEMPERATURE SENSOR FAULT Sensor cable disconnected The signal from the outdoor air temperature sensor is out of range. Sensor cable broken or shorted OPERATION to the expected value. Replace sensor if necessary. Connect sensor and cable to controller. • Be sure the sensor cable is properly connected to both the sensor and the controller. Defective sensor • Disconnect the cable from the controller and check the resistance of the sensor and cable combination. Compare to the chart at the end of this section. If the resistance is outside the allowable range, disconnect the cable from the sensor and be sure the resistance of the cable is above 1 million ohms. Connect the ends of the cable wires together and be sure the cable resistance is less than 5 ohms. If either condition fails, replace cable. Compare the resistance of the sensor itself to the sensor resistance chart. Replace sensor if necessary. Connect sensor and cable to controller. Data subject to change without notice. Dectron, Inc. July 2013 97 DK/DKV/RK Series Dehumidifier Operation ALARM POWER FAILURE Owners Manual Supervisaire® Controller Diagnostics POSSIBLE CAUSES Input voltage out of range CHECKS & CORRECTIONS • A qualified person should be sure that the The voltage monitor circuit is open. • average applied voltage is within ±10% of the nameplate value and that the individual phase voltages are within ±1% of the average voltage (See NEMA MG-1). Note that the input voltage can go below nominal ±10% at the moment of compressor startup. A qualified person should measure the input voltage at the moment of compressor start up. Input voltage phase rotation reversed • A qualified person should interchange any One or more phases of the input voltage are missing • A qualified person should determine that all For 460 V units, there is a crack in the socket of the voltage monitor • A qualified person should inspect the socket. Defective voltage monitor • Consult Dectron or a Dectron-certified two wires of the branch circuit. Do not move any factory-installed wires. phases are present. Check fuses and/or circuit breakers. Replace as necessary. technician. OPERATION RETURN AIR SENSOR FAULT The signal from the return air temperature sensor is out of range. Sensor cable disconnected • Be sure the sensor cable is properly con nected to both the sensor and the controller. Sensor cable broken or shorted • Disconnect the cable from the controller and Defective sensor • Compare the resistance of the sensor itself check the resistance of the sensor and cable combination. Compare to the chart at the end of this section. If the resistance is outside the allowable range, disconnect the cable from the sensor and be sure the resistance of the cable is above 1 million ohms. Connect the ends of the cable wires together and be sure the cable resistance is less than 5 ohms. If either condition fails, replace cable. to the sensor resistance chart. Replace sensor if necessary. Connect sensor and cable to controller. Data subject to change without notice. 98 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Supervisaire® Controller Diagnostics ALARM POSSIBLE CAUSES SUPPLY AIR SENSOR FAULT Sensor cable disconnected The signal from the supply air temperature sensor is out of range. Sensor cable broken or shorted Operation CHECKS & CORRECTIONS • Be sure the sensor cable is properly connected to both the sensor and the controller. • Disconnect the cable from the controller and check the resistance of the sensor and cable combination. Compare to the chart at the end of this section. If the resistance is outside the allowable range, disconnect the cable from the sensor and be sure the resistance of the cable is above 1 million ohms. Connect the ends of the cable wires together and be sure the cable resistance is less than 5 ohms. If either condition fails, replace cable. Defective sensor • Compare the resistance of the sensor itself WALL SENSOR FAULT Sensor cable disconnected • Be sure the sensor cable is properly connected to both the sensor and the controller. The signal from the wall temperature sensor (where so equipped) is out of range. Sensor cable broken or shorted • Disconnect the cable from the controller and check the resistance of the sensor and cable combination. Compare to the chart at the end of this section. If the resistance is outside the allowable range, disconnect the cable from the sensor and be sure the resistance of the cable is above 1 million ohms. Connect the ends of the cable wires together and be sure the cable resistance is less than 5 ohms. If either condition fails, replace cable. Defective sensor • Compare the resistance of the sensor itself to the sensor resistance chart. Replace sensor if necessary. Connect sensor and cable to controller. Data subject to change without notice. Dectron, Inc. July 2013 99 OPERATION to the sensor resistance chart. Replace sensor if necessary. Connect sensor and cable to controller. DK/DKV/RK Series Dehumidifier Operation Owners Manual Controller Diagnostics Temperature Sensors 160000 140000 Sensor Resistance (Ω) Use this chart for the temperature range -40°F to 50°F. 120000 100000 80000 60000 40000 20000 0 -40 -30 -20 -10 0 10 20 30 40 50 130 140 150 230 240 250 Temperature (°F) Use this chart for the temperature range 50°F to 150°F. OPERATION Sensor Resistance (Ω) 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 0 50 60 70 80 90 100 110 120 Temperature (°F) Use this chart for the temperature range 150°F to 250°F. Sensor Resistance (Ω) 1000 900 800 700 600 500 400 300 200 100 0 150 160 170 180 190 200 210 220 Temperature (°F) Data subject to change without notice. 100 Dectron, Inc. July 2013 Owners Manual DK/DKV/RK Series Dehumidifier Isolation Valves Service Operation Units with Liquid-line Solenoid Valves Some units may have liquid-line solenoid valves. Should one of these units need service that requires closing the receiver-outlet isolation valve, follow these steps: 1. Locate the refrigerant liquid line associated with the circuit to be serviced. 2. There will be an access valve either in the filter-drier itself, or in the tube near the filter drier. 3. Set up a refrigerant reclaim machine (by others) on the access valve. Prepare to reclaim 1/2 pound of refrigerant. 4. Close the receiver-outlet isolation valve associated with the circuit to be serviced. 5. Immediately reclaim refrigerant from the liquid line filterdrier. One-half pound (by weight) or a reduction in pressure to 1/2 of saturation should be adequate. This will allow the remaining liquid refrigerant to expand without damaging components. liquid-line solenoid valve access valve filter-drier 6. Retain the refrigerant to return to the unit after service is complete. Should it be necessary to isolate the remote condenser (if any) from the unit, follow these steps: 1. Some units may have multiple refrigeration circuits. Determine which circuit must be isolated. Horizontal Unit 2. Determine which refrigerant-tubes on the unit connect that circuit to the remote condenser. These tubes are labelled. 3. Locate the remote-condenser access valves for the tubes of the circuit in question. 4. Set up a refrigerant-reclaim machine (by others) on the remote-condenser access valves for the circuit. Prepare to remove at least two pounds of refrigerant, by weight. Vertical Unit 5. There will be a manual isolation valve just inside the unit cabinet behind each tube. Close the two valves associated with the circuit. 6. Immediately reclaim two pounds of refrigerant (by weight). This will provide enough volume for the remaining refrigerant to expand without damaging components. 7. Retain the reclaimed refrigerant for return to the unit after the service is complete. Data subject to change without notice. Dectron, Inc. July 2013 101 OPERATION Units with the Air-Cooled Air Conditioning Option Only