Ecotron SPVR OM 2013-Dec-9.qxd

Transcription

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.
2
Dectron, Inc.
July 2013
Owners Manual
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
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
Dectron, Inc.
July 2013
3
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.
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Dectron, Inc.
July 2013
Owners Manual
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.
Dectron, Inc.
July 2013
5
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
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
6
Dectron, Inc.
July 2013
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
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.
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
Dectron, Inc.
July 2013
7
DESCRIPTION
Owners Manual
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
8
Dectron, Inc.
July 2013
Owners Manual
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.
Dectron, Inc.
July 2013
9
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
10
Dectron, Inc.
July 2013
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.
Dectron, Inc.
July 2013
11
Owners Manual
Installation
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.
12
Dectron, Inc.
July 2013
Owners Manual
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.
Dectron, Inc.
July 2013
13
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.
14
Dectron, Inc.
July 2013
Owners Manual
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
A
R-22 FACTORY CHARGE
lbs
AIR VOLUME
CFM
BELT SIZE
WIRING DIAGRAM
50379
CERTIFIED TO STD CAN/CSAC22.2 NO. 236
LR 45671
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:
ft
LINE SIZE:
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)
Dectron, Inc.
July 2013
15
Owners Manual
Installation
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
A
R-22 FACTORY CHARGE
lbs
AIR VOLUME
CFM
BELT SIZE
WIRING DIAGRAM
50379
LR 45671
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
oz
OIL TYPE:
ft
LINE SIZE:
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)
16
Dectron, Inc.
July 2013
HOT GAS:
in
LIQUID:
in
Owners Manual
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
Dectron, Inc.
July 2013
17
INSTALLATION
Δ Duct material
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
18
Dectron, Inc.
July 2013
Owners Manual
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
Dectron, Inc.
July 2013
19
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)
20
Dectron, Inc.
July 2013
Owners Manual
Field Wiring Diagram
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
Dectron, Inc.
July 2013
21
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)
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)
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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®
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REMOTE CONDENSER or DryCooler
(Ecotron® units with air-cooled air conditioning option only)
Installation
to remote air cooled
condenser
Control Signals
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.
Dectron, Inc.
July 2013
23
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.
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.
terminal 83
0-10VDC analog signal
from Building
Management System
controls variable heat.
2V = 100% heat
5V = 0% heat
Ecotron®
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INSTALLATION
WATER FLOW SIGNAL
(units with water-cooled air conditioning
only)
terminal 2
terminal 20
terminal 21
Ecotron®
terminal 60
terminal D13
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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®
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.
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)
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
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.
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®
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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.
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OUTDOOR AIR SENSOR
Dectron, Inc.
July 2013
25
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
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Water valve actuator wiring
PROPORTIONAL
VALVE ACTUATOR
Blk (1) COMMON
Red (2) HOT
Wht (3) 2-10VDC
CCW
CW
26
Dectron, Inc.
July 2013
Owners Manual
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
Dectron, Inc.
July 2013
27
Installation
Wiring
Owners Manual
Control Signals
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
28
Dectron, Inc.
July 2013
Owners Manual
Control Signals
Wiring
Installation
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
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
Installation
Owners Manual
Wiring
Control Signals
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
30
Dectron, Inc.
July 2013
Owners Manual
Control Signals
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.
Dectron, Inc.
July 2013
31
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.
32
Dectron, Inc.
July 2013
Owners Manual
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
A
R-22 FACTORY CHARGE
lbs
lbs
AIR VOLUME
CFM
BELT SIZE
WIRING DIAGRAM
AIR TEMP.
°F
R.H.
ft
LIQUID:
Contact Dectron for
remote condensers
located below the
Ecotron®.
%
LINE SIZE:
HOT GAS:
in
in
50379
C22.2 NO. 236
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
Dectron, Inc.
July 2013
33
INSTALLATION
UNITS WITH AIR-COOLED AIR CONDITIONING ONLY
ASSEMBLING AND BRAZING CONDENSER TUBES
Owners Manual
Installation
Piping
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
A
Do not attempt evacuation with
access-valve cores in place.
Use core-removal adapters.
Ex: Robinair 18340
Yellow Jacket 19000
R-22 FACTORY CHARGE
lbs
lbs
AIR VOLUME
CFM
BELT SIZE
WIRING DIAGRAM
AIR TEMP.
°F
R.H.
%
ft
HOT GAS:
LINE SIZE:
in
LIQUID:
in
Note: Crankcase heaters should
be powered.
50379
C22.2 NO. 236
34
Dectron, Inc.
July 2013
Owners Manual
Piping
Installation
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
A
unit nameplate
R-22 FACTORY CHARGE
lbs
AIR VOLUME
CFM
BELT SIZE
WIRING DIAGRAM
50379
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
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
lbs
oz
OIL TYPE:
ft
LINE SIZE:
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
Dectron, Inc.
July 2013
35
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
(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.
36
Dectron, Inc.
July 2013
Owners Manual
Piping
Installation
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
Dectron, Inc.
July 2013
37
Owners Manual
Installation
Piping
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)
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
38
Dectron, Inc.
July 2013
Owners Manual
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)
See the unit port labels.
Dectron, Inc.
July 2013
39
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
40
Dectron, Inc.
July 2013
Owners Manual
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
Dectron, Inc.
July 2013
41
Owners Manual
Installation
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42
Dectron, Inc.
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Owners Manual
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
Enable Operation
Read Sensors
Expansion Valve Adjustment
Startup Report &
Warranty
Dectron, Inc.
July 2013
43
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.
44
Dectron, Inc.
July 2013
Owners Manual
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.
Dectron, Inc.
July 2013
45
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.
46
Dectron, Inc.
July 2013
Owners Manual
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
Dectron, Inc.
July 2013
47
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
GO TO
CLOCK SETTINGS
Esc
DoW
Prg
xxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxx
hh:mm
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
48
Dectron, Inc.
July 2013
to
Owners Manual
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
Dectron, Inc.
July 2013
49
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
map, see Operation.
ENTERING R/H
xxx %
ENTERING AIR - xxx.x F
SUPPLY AIR
xxx.x F
Prg
Esc
Press
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
COMFORMS TO UL STD 1995
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
ft
LINE SIZE:
HOT GAS:
in
LIQUID:
in
Dectron, Inc.
ft²
50
A
R-22 FACTORY CHARGE
50379
5. Stop the blower by repeating step 3 above. If prompted for a password, enter as discussed above.
July 2013
Owners Manual
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
A
R-22 FACTORY CHARGE
lbs
AIR VOLUME
CFM
BELT SIZE
WIRING DIAGRAM
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
ft
LINE SIZE:
HOT GAS:
in
LIQUID:
in
Dectron, Inc.
July 2013
51
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.
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.
10
5
15
0.1
Ue (VAC)
20
Delay (sec)
52
Dectron, Inc.
July 2013
Owners Manual
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).
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).
Dectron, Inc.
July 2013
53
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
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Dectron, Inc.
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Owners Manual
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
Dectron, Inc.
July 2013
55
Startup
Owners Manual
Set Optional Cooling-Water Flowswitch
Units Equipped for Water-Cooled Air Conditioning Only
Locate the cooling-water flow switch.
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.
56
Dectron, Inc.
July 2013
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
)___-____
Dectron, Inc.
July 2013
57
STARTUP
Owners Manual
Owners Manual
Startup
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.
(
)___-____
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Dectron, Inc.
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Owners Manual
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
map, see Operation.
Prg
ENTERING R/H
xxx %
SUPPLY AIR
xxx.x F
STARTUP
Default Screen
MAIN MENU
SCROLL DOWN
FOR OPTIONS
Esc
Press
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
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
Then press
to confirm.
or
to
togglebetween AUTOMATIC and
OFF. Then press
or
to confirm.
to toggle
or
Then press
to confirm.
Dectron, Inc.
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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 %
SUPPLY AIR
xxx.x F
Esc
Default Screen
MAIN MENU
SCROLL DOWN
FOR OPTIONS
Press
Esc
ENTERING R/H
xxx %
SUPPLY AIR
xxx.x F
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.
map, see Operation.
cc is the supply air temperature set point for
the internal heater. If a change is desired,
press
cc, then press
or
to change the set
point.
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Dectron, Inc.
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Owners Manual
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
ROOM AIR ccc / ddd F
Esc
map, see Operation.
Prg
ENTERING R/H
xxx %
SUPPLY AIR
xxx.x F
Esc
Press
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
Dectron, Inc.
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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.
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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 %
SUPPLY AIR
xxx.x F
Esc
Prg
Esc
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
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).
Dectron, Inc.
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63
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 %
SUPPLY AIR
xxx.x F
Esc
Prg
Esc
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
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).
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Dectron, Inc.
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Owners Manual
Startup
STARTUP
Dectron, Inc.
July 2013
65
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.
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Dectron, Inc.
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Owners Manual
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 # . . . . . . . . . . . . . . . . . .
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 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...................
Dectron, Inc.
July 2013
67
Owners Manual
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!
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 (
) ............................
68
Dectron, Inc.
July 2013
Owners Manual
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.
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.
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
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
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.
70
Dectron, Inc.
July 2013
Owners Manual
Contents
Operation
Page
72
82
85
86
87
88
89
100
101
OPERATION
Maintenance Schedule
Supervisaire® Controller
User Interface Map
Read Sensors
Start, Stop, Reset
Supervisaire® Diagnostics
Sensor Response Curves
Isolation Valves
Dectron, Inc.
July 2013
71
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.
72
Dectron, Inc.
July 2013
Owners Manual
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
Dectron, Inc.
July 2013
73
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
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AY R
U les
VA CT
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. 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
74
Dectron, Inc.
July 2013
Owners Manual
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
Dectron, Inc.
July 2013
75
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:
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
76
Dectron, Inc.
July 2013
Optional Wheel
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
Dectron, Inc.
July 2013
77
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:
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
78
Dectron, Inc.
July 2013
Owners Manual
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
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AY R
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VA CT
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. 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.
Dectron, Inc.
July 2013
79
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 %
SUPPLY AIR
xxx.x F
Esc
map, see Operation User Interface Map.
Prg
ENTERING R/H
xxx %
SUPPLY AIR
xxx.x F
Esc
GO TO
SENSOR READINGS
Prg
SUPPLY AIR TEMP
READING . . . xxx F
Esc
Esc
Press
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).
Esc
Press
This is the temperature of the refrigerant leaving the first compressor.
the third compressor (where so equipped).
DISCHARGE 4 TEMP
READING . . . xxx %
the fourth compressor (where so equipped).
80
Dectron, Inc.
July 2013
Owners Manual
Optional Special Operating Sequence
Operation
OPERATION
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 %
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
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
(Optional) Press
or
to toggle
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
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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
Operation
Owners Manual
Supervisaire® Controller Interface Map
Default Screen
MAIN MENU
SCROLL DOWN
FOR OPTIONS
Esc
ENTERING R/H
xxx %
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.
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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 %
SUPPLY AIR
xxx.x F
Default Screen
MAIN MENU
SCROLL DOWN
FOR OPTIONS
Press
Esc
Prg
ENTERING R/H
xxx %
SUPPLY AIR
xxx.x F
Esc
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
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
cc, then press
or
to change the set
point.
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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 %
SUPPLY AIR
xxx.x F
Esc
Default Screen
MAIN MENU
SCROLL DOWN
FOR OPTIONS
ROOM AIR ccc / ddd F
menu
enter
Press
menu
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
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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 %
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.
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Operation
Owners Manual
Prg
Default Screen
MAIN MENU
SCROLL DOWN
FOR OPTIONS
menu
enter
Press
ENTERING R/H
xxx %
SUPPLY AIR
xxx.x F
Esc
ENTERING R/H
xxx %
SUPPLY AIR
xxx.x F
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
- Second stage auxiliary air heating is ON.
- Third stage auxiliary air heating is ON.
- 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
COMPRESSOR 2 EMERGENCY SWITCH OFF - The manual ON/OFF switch is OFF.
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
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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.
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OPERATION
Overload device manual switch is Check switch position visually
OFF
• Press the OFF switch, then press the ON
switch.
Operation
ALARM
COMPRESSOR 1 HIGH
PRESSURE FAULT
or
COMPRESSOR 2 HIGH
PRESSURE FAULT
Owners Manual
POSSIBLE CAUSES
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
technician.
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ALARM
COMPRESSOR 1 HIGH
DISCHARGE FAULT
or
COMPRESSOR 2 HIGH
DISCHARGE FAULT
Operation
POSSIBLE CAUSES
Improperly adjusted refrigerant
expansion valve(s)
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
technician.
Improperly adjusted refrigerant
expansion valve(s)
Inadequate return air flow
technician.
control valve(s)
COMPRESSOR 1 LOW
PRESSURE FAULT
or
COMPRESSOR 2 LOW
PRESSURE FAULT
Manual isolation valves not
opened at installation
Inadequate refrigerant charge
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
shown on unit nameplate. Be sure room
heater is working properly.
Low room humidity
shown on unit nameplate. Be sure outdoor
makeup air flow rate is not excessive.
Inadequate return air flow
Clogged refrigerant filter-drier
technician.
control valves
Defective refrigerant expansion
valve
Defective pressure switch
technician.
technician.
technician.
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Operation
ALARM
COMPRESSOR 1 OIL
FAILURE
or
COMPRESSOR 2 OIL
FAILURE
Owners Manual
POSSIBLE CAUSES
Low oil level in compressor
crankcase
• 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
• 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
technician.
Compressor oil pump failure
technician.
OPERATION
Compressor oil pressure switch
failure
• Oil pressure should be more than 10 PSI
above evaporator pressure.
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
Defective compressor overheat
detector
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.
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ALARM
COMPRESSOR 1
OVERLOAD
or
COMPRESSOR 2
OVERLOAD
POSSIBLE CAUSES
Operation
or out of balance
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
technician.
Leaking hot gas bypass valve(s)
shutoff solenoid valve(s) (where
so equipped)
technician.
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OPERATION
• Be sure that the space heater is responding
to signals from the Ecotron®. Reset overload.
Operation
ALARM
COOLING PERFORMANCE ALARM
Owners Manual
POSSIBLE CAUSES
A minimum temperature difference across the evaporator has
not been produced after five minutes of refrigeration.
• 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.
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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
• Be sure the sensor cable is properly connected to both the sensor and the 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.
technician.
OPERATION
• Be sure there is no fire.
• 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.
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Operation
ALARM
Owners Manual
POSSIBLE CAUSES
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.
or out of balance
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
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.
MAX. EXHAUST BLOWER OVERLOAD
(Purge mode equipped
units)
device for the larger
exhaust air blower has
tripped.
Excess maximum-exhaust air
flow rate
• Be sure the Maximum Exhaust air flow rate is
or out of balance
as specified. Excess air flow can overload
some blowers.
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ALARM
POSSIBLE CAUSES
MIN. EXHAUST BLOWER OVERLOAD
(Purge mode equipped
units)
device for the larger
exhaust air blower has
tripped.
Operation
Excess minimum-exhaust air flow
rate
• Be sure the Minimum Exhaust air flow rate is
or out of balance
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.
• 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
The signal from the outdoor air temperature
sensor is out of range.
OPERATION
to the expected value. Replace sensor if necessary.
Defective sensor
the cable wires together and be sure the cable
resistance is less than 5 ohms. If either condition fails, replace cable.
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Operation
ALARM
POWER FAILURE
Owners Manual
POSSIBLE CAUSES
Input voltage out of range
The voltage monitor
circuit is open.
•
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
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.
• Be sure the sensor cable is properly con
nected to both the sensor and the controller.
Defective sensor
• Compare the resistance of the sensor itself
to the sensor resistance chart. Replace sensor if necessary.
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ALARM
POSSIBLE CAUSES
SUPPLY AIR SENSOR
FAULT
The signal from the supply air temperature sensor is out of range.
Operation
Defective sensor
WALL SENSOR FAULT
The signal from the wall
temperature sensor
(where so equipped) is
out of range.
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
Defective sensor
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OPERATION
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)
temperature range
50°F to 150°F.
OPERATION
10000
9000
8000
7000
6000
5000
4000
3000
2000
1000
0
50
60
70
80
90
100
110
120
Temperature (°F)
temperature range
150°F to 250°F.
1000
900
800
700
600
500
400
300
200
100
0
150
160
170
180
190
200
210
220
Temperature (°F)
100
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July 2013
Owners Manual
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.
Dectron, Inc.
July 2013
101
OPERATION
Units with the Air-Cooled Air Conditioning Option Only

Ecotron SPVR OM 2013-Dec-9.qxd

Transcription

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