WCFX-E Series 50Hz - Dunham

WCFX-E Series 50Hz
Water Cooled Rotary Screw Water Chillers
Cooling Capacity: 50 to 860 TR (175 to 3030 kW)
R134a
Products that perform...By people who care
STANDARD FEATURES
COMPONENTS
Compact, quiet Vertical
Screw Compressors
Microcomputer for
precise and reliable
control
Bolted construction for
easy knockdown
Heat exchangers with
cleanable and
removable enhanced
copper tubes
Condenser with integral subcooling circuit for better
efficiency
STANDARD FEATURES
Size/Range
D
D
32 Models from 50 to 860 TR [175 to 3030 kW].
One-year parts warranty at no extra cost.
Compressor
D
D
D
Quiet, reliable Vertical Rotary Screw Compressors.
Hermetic Design eliminates shaft seals, inspections, teardowns, alignments, etc.
Infinite unloading with dependable slide valve mechanism.
Evaporator/Condenser
D
D
D
D
D
Cleanable and Removable Integral Fin Copper Tubes.
One, Two or Three Water Passes Available.
Removable Water Heads.
Victaulic Groove Water Connections.
Relief Valves(s) standard.
Controller/ Electrical
D
D
D
D
D
D
D
Proactive Advanced Controller adapts to varying operating conditions.
Tolerant and accommodating of extreme conditions at start-up.
Capable of controlling multiple chillers, cooling towers, pumps, etc.
Circuit Breaker on each multiple compressor unit.
Current and Voltage transformers.
Under Voltage Phase Failure Relay.
Indicator lights for Compressor Overloads, Micro Alarm, Control Power, Compressor Control Circuit.
-2-
FEATURES & BENEFITS
HIGH RELIABILITY
Compressor Shell
Oil Separator
Motor
Discharge Port
Oil Deflection
Plate
Hermetic Motor
Housing
Suction Filter
Suction Port
Vapor
Injection
Port
Rotors
Dunham-Bush outstanding and unique vertical hermetic
screw compressors feature less moving parts, no gear
boxes and low speed operation. The advanced
manufacturing process provides higher performance &
reliability with lower noise levels. There is less chance of
failure. Many thousands of various series of Dunham-Bush
Screw Compressors have proven records of over 100,000
running hours, without any major overhaul.
D
Over 40 years of rotary screw experience and dedicated
technological advancements.
D
Simply designed for high reliability with few moving parts.
D
Directly driven by electrical motor ensures low
compressor RPM and enhances compressor life-cycle.
There are no gears to fail.
D
Ensured continuous oil flow to the compressor through
integral high efficiency oil separation.
D
No oil pump is required, so less moving parts.
D
Simplified Capacity Control is achieved through slide
valve mechanism for capacity modulation and part-load
operation. Infinite unloading system goes down to 25%
per compressor.
D
Double Delta motor start ensures reduced 1st step
inrush and starting currents.
Slide Valve
Oil Level Glass
ENERGY EFFICIENCY
WCFX-E range chillers are designed to provide the greatest
amount of cooling for the least kilowatt input over the entire
operating range of your building.
D
The efficient flooded evaporator enables the approach
temperature difference between the 'boiling' liquid
refrigerant temperature in the shell and the leaving chilled
water temperature, to be typically less than 2K. This
enhances the energy efficiency substantially compared to
direct expansion evaporators.
D
Delivers outstanding efficiency and total energy savings
through the utilization of economizer cycle. Increases
capacity by as much as 12% with only 7% extra absorbed
power.
-3-
FEATURES & BENEFITS
INSTALLATION EASE
D
The small footprint of WCFX-E chillers, saves valuable chiller plant room space and eliminates the access
concerns for most replacement projects.
D
Units can be supplied in split design to allow easy fit through any standard commercial doorway.
D
Substantial payback in reduced maintenance, repair and overhaul costs, both in down time, spare parts and in
labor expenditures.
D
Ease of troubleshooting through controller retention of monitored functions.
D
All units are factory tested prior to shipment.
ADVANCED CONTROLLER
Microprocessor is a flexible and advance programmable
electronic controller designed specifically for the
applications and precise control of the WCFX-E Screw
compressor chillers.
The controller board is provided with a set of terminals
that connects to various devices such as temperature
sensors, pressure and current transducers, solenoid
valves, compressors and fan contactors, control relays
etc.
The unit algorithm program and operating parameters
are stored in FLASH-MEMORY that does not require a
back-up battery. The program can be loaded through
PC or a programming key.
The controller is equipped with a user friendly terminal with 320 x 240 pixel, 256 color LCD graphical display and
dedicated touch keys that provide easy access to the unit’s operating conditions, control set points and alarm history.
Display and User Terminal
The controller is designed to work with a user friendly 320 x 240 pixel, 256 color DBG3 graphical display panel
connected with the controller through shielded twisted pair cable. The terminal carrys out all program operations and
displays the unit operating conditions, compressor run times, alarm history and is the interface for modifying the
control parameters. The display also has an automatic self-test of the controller on system start-up. Multiple
messages will be displayed by automatically scrolling from each message to the next. All of these messages are
spelled out in English on the display terminal.
There are 7 dedicated physical buttons and 13 touch keys that enable the user to access information, based on the
security level of the password.
Easily accessible measurements include:
D
D
D
D
D
D
D
Leaving chilled water temperature
Leaving chiller water temperature derivative
Evaporator Pressure
Condenser Pressure
Compressor amp draw of each compressor
Compressor elapsed run time of each compressor
Compressor starts status
-4-
FEATURES & BENEFITS
D
D
D
D
D
Oil level sensor status
Water temperature reset value
Water flow switch status
External start/stop command status
Trend graph for leaving chilled water temperature
Optional entering chilled water temperature, leaving and entering condenser water temperature are available. With
this option the operator can quickly and accurately read all significant water temperatures and eliminate the need for
thermometers. Voltage readout is also offered as an optional feature.
Capacity Control
Leaving chilled water temperature control is accomplished by entering the water temperature setpoint and placing
the controller in automatic control. The unit will monitor all control functions and move the slide valve to the required
operating position. The compressor ramp (loading) cycle is programmable and may be set for specific building
requirements. Remote adjustment of the leaving chilled water setpoint is accomplished either through direct BMS
protocols connection to the controller communication ports, or from an external hardwired control signal from BMS to
supply a chilled water reset 4 to 20mA analog input signal. Remote reset of compressor current limiting function may
be accomplished in a similar fashion.
System Control
The unit may be started or stopped manually, or through the use of an external signal from a Building Automation
System.
System Protection
The following system protection controls will automatically act to ensure system reliability:
D Low suction pressure
D High discharge pressure
D Freeze protection
D Low differential pressure
D Low oil level
D Compressor run error
D Power loss
D Chilled water flow loss
D Sensor error
D Compressor over current
D Compressor Anti-recycle
The controller is able to retain up to 99 alarm conditions complete with time of failure together with data stamping on
critical sensor readings in alarm history masks. This tool will aid Service technicians in troubleshooting tasks,
reducing downtime and nuisance trips to be minimized.
Remote Monitoring
The controller can be completed with an optional communications card and NETVISOR software for remote
monitoring and controlled from a PC terminal and optional phone modem.
With various optional add-on cards the controller can also be interfaced directly to the Building Management System
(BMS) with the standard open communication protocols using MODBUS, LONWORKS, BACNET MSTP as well as
over IP.
This sophisticated feature makes servicing easier and more convenient to the system. The controller as standard is
equipped with additional history files which may be used to take logs which can be retrieved via the phone modem or
internet connection periodically. Now owners of multiple buildings have a simple and inexpensive method of
investigating potential problems quickly and in a very cost effective manner.
-5-
PHYSICAL SPECIFICATIONS
WCFX-E
10S
WCFX-E
12S
WCFX-E
15S
WCFX-E
18S
WCFX-E
20S
WCFX-E
23S
WCFX-E
24S
WCFX-E
27S
59 [207]
74 [260]
90 [316]
110 [387]
139 [489]
153 [538]
166 [584]
182 [640]
39
47
56
68
84
91
100
109
kW/TR
EER [kW/kW]
0.65
[5.3]
0.63
[5.6]
0.62
[5.7]
0.62
[5.7]
0.60
[5.8]
0.60
[5.9]
0.61
[5.8]
0.60
[5.9]
Evap. flow
USgpm [m³/hr]
141 [32]
177 [40]
216 [49]
264 [60]
333 [76]
367 [83]
398 [90]
436 [99]
Evap. rng.
°F[°C]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
Cnd. Flow
USgpm[m³/hr]
168 [38]
209 [48]
254 [58]
310 [70]
391 [89]
429 [98]
466 [106]
511 [116]
°F[°C]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
1
1
1
1
1
1
1
1
Model
Cooling Cap
TR[kW]
Power Input
kW
Energy efficiency
Cnd. rng.
No of compressor
Dimensions
Length
inches[mm]
125 [3180]
123 [3120]
123 [3120]
128 [3260]
161 [4080]
161 [4080]
163 [4130]
163 [4130]
Width
inches[mm]
43 [1100]
45 [1140]
46 [1170]
47 [1190]
48 [1210]
48 [1210]
50 [1260]
50 [1260]
Height
inches[mm]
72 [1830]
73 [1850]
78 [1980]
78 [1980]
88 [2240]
88 [2240]
91 [2320]
91 [2300]
WCFX-E
30S
WCFX-E
36S
WCFX-E
36T
WCFX-E
41S
WCFX-E
41T
WCFX-E
46T
WCFX-E
50T
WCFX-E
54T
211 [742]
242 [851]
228 [802]
277 [974]
265 [932]
308 [1083]
340 [1195]
374 [1315]
Model
Cooling Cap
TR[kW]
Power Input
kW
128
145
139
165
160
183
196
216
kW/TR
EER [kW/kW]
0.60
[5.8]
0.60
[5.9]
0.61
[5.8]
0.60
[5.9]
0.60
[5.8]
0.59
[5.9]
0.58
[6.1]
0.58
[6.1]
Evap. flow
USgpm [m³/hr]
506 [115]
580 [132]
547 [124]
664 [151]
635 [144]
738 [168]
815 [185]
897 [204]
Evap. rng.
°F[°C]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
Cnd. Flow
USgpm [m³/hr]
593 [135]
679 [154]
641 [146]
777 [177]
744 [169]
863 [196]
949 [216]
1044 [237]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
1
1
2
1
2
2
2
2
Energy efficiency
Cnd. rng.
°F[°C]
No of compressor
Dimensions
Length
inches[mm]
163 [4130]
178 [4520]
169 [4300]
178 [4521]
177 [4500]
178 [4520]
173 [4400]
173 [4400]
Width
inches[mm]
50 [1260]
66 [1670]
52 [1320]
66 [1670]
54 [1360]
56 [1410]
57 [1440]
57 [1440]
Height
inches[mm]
91 [2300]
96 [2440]
81 [2050]
96 [2440]
94 [2380]
96 [2430]
96 [2430]
98 [2480]
Note: Actual capacity will depend on the specified conditions.
-6-
PHYSICAL SPECIFICATIONS
Model
WCFX-E
57T
WCFX-E
60T
WCFX-E
69
WCFX-E
73
WCFX-E
73T
WCFX-E
75T
WCFX-E
77
WCFX-E
81
405 [1424]
427 [1501]
460 [1617]
495 [1740]
497 [1747]
533 [1874]
526 [1849]
558 [1962]
Cooling Cap
TR[kW]
Power Input
kW
234
247
264
284
289
309
304
323
kW/TR
EER [kW/kW]
0.58
[6.1]
0.58
[6.1]
0.57
[6.1]
0.57
[6.1]
0.58
[6.1]
0.58
[6.1]
0.58
[6.1]
0.58
[6.1]
Evap. flow
USgpm [m³/hr]
971 [221]
1024 [233]
1103 [251]
1187 [270]
1192 [271]
1278 [291]
1261 [287]
1338 [304]
Evap. rng.
°F[°C]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
Cnd. Flow
USgpm[m³/hr]
1130 [257]
1192 [271]
1283 [292]
1381 [314]
1388 [316]
1489 [338]
1468 [334]
1558 [354]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
2
2
3
3
2
2
3
3
Energy efficiency
Cnd. rng.
°F[°C]
No of compressor
Dimensions
Length
inches[mm]
173 [4400]
173 [4400]
180 [4580]
180 [4580]
175 [4450]
175 [4450]
185 [4690]
185 [4690]
Width
inches[mm]
57 [1440]
57 [1440]
62 [1570]
62 [1570]
82 [2080]
82 [2080]
64 [1630]
64 [4630]
Height
inches[mm]
98 [2480]
98 [2480]
100 [2530]
100 [2530]
95 [2410]
95 [2410]
102 [2590]
102 [2590]
WCFX-E
81T
WCFX-E
84
WCFX-E
87
WCFX-E
90
WCFX-E
108
WCFX-E
113
WCFX-E
118
WCFX-E
123
569 [2001]
582 [2046]
607 [2134]
632 [2222]
750 [2637]
786 [2764]
822 [2890]
858 [3017]
Model
Cooling Cap
TR[kW]
Power Input
kW
330
337
352
366
434
455
476
497
kW/TR
EER [kW/kW]
0.58
[6.1]
0.58
[6.1]
0.58
[6.1]
0.58
[6.1]
0.58
[6.1]
0.58
[6.1]
0.58
[6.1]
0.58
[6.1]
Evap. flow
USgpm [m³/hr]
1364 [310]
1395 [317]
1455 [331]
1515 [344]
1798 [409]
1885 [428]
1971 [448]
2057 [468]
Evap. rng.
°F[°C]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
Cnd. Flow
USgpm[m³/hr]
1589 [361]
1625 [369]
1695 [385]
1765 [401]
2094 [476]
2195 [499]
2295 [522]
2396 [545]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
10 [5.6]
2
3
3
3
3
3
3
3
Energy efficiency
Cnd. rng.
°F[°C]
No of compressor
Dimensions
Length
inches[mm]
174 [4410]
185 [4690]
185 [4700]
185 [4700]
197 [5010]
197 [5010]
197 [5010]
198 [5030]
Width
inches[mm]
82 [2075]
64 [4630]
68 [1730]
68 [1730]
93 [2350]
93 [2350]
93 [2350]
93 [2360]
Height
inches[mm]
95 [2410]
102 [2590]
104 [2640]
104 [2640]
102 [2590]
102 [2590]
102 [2590]
106 [2690]
Note: Actual capacity will depend on the specified conditions.
-7-
Americas
Europe
Africa
United States of America
United Kingdom
South Africa
175 South Street,
West Hartford,
CT 06110, USA
8 Downley Road,
Havant, Hampshire,
England PO9 2JD
No. 57 Sovereign Drive
Route 21 Corporate Park
Irene, Pretoria
South Africa
Tel: 1-860-249 8671
Fax: 1-860-953 3300
Tel : 44-23-9247 7700
Fax: 44-23-9245 0396
China
Asia
Middle East & North Africa
No. 1 Dunham-Bush Road,
Laishan District,
Yantai,
Shandong Province,
China 264003
Singapore
United Arab Emirates
146B, Paya Lebar Road,
No. 05-01,
ACE Building,
Singapore 409017
Platinum Business Centre
Office No. 704
P. O. Box 30922,
Al Nahda 2nd, Dubai, UAE
Tel: 65-6842 2012
Fax: 65-6842 2013
Tel: 971-4-280 6699
Fax: 971-4-280 9886
Tel: 86-535-658 8999
Fax: 86-535-658 1999
Russia & CIS
Malaysia
Russia
Lot 11, Novinskiy Boulevard,
Moscow,
121099 Russian Federation
Lot 5755-6, Kidamai Industrial Park,
Bukit Angkat,
43000 Kajang,
Selangor Darul Ehsan,
Malaysia
Tel: 7-499-255 6953
Fax: 7-499-255 6953
Tel: 603-8924 9000
Fax: 603-8739 5020
[email protected]
www.dunham-bush.com
Tel: 27-12-345 4202
Fax: 27-12-345 4203
Products that perform...By people who care
Manufacturer reserves the right to change specifications without prior notice.
M-S-0490A-0411