| |
|
|
Packaged Low Temperature Screw Chillers
CLS Series: +20ºF to -50ºF LCT |
| |
|
| 360º View Available |
|
The CLS series is designed to provide a packaged low temperature chiller solution to your process
needs. The packaged module is a robust and high efficiency screw compressor.
A packaged chiller system may include an integrated tank, pump, and controls to fully meet the demands of your process. |
| Major Features of the CLS Series: |
 |
Packaged air or water cooled chiller designed to ideally match your requirements |
|
Industrial screw compressor |
|
Simple & comprehensive PLC touch screen |
|
Extreme duty stainless steel fan shroud ( air cooled models) |
|
Breakers and motor protects - No Fuses |
|
Large stainless steel reservoir tank with system and bypass pump assembly |
|
Indoor/Outdoor operation (frame enclosure) |
|
Ventilated Control Cabinet (NEMA rated optional) |
|
|
|
|
|
| |
| Screw Chiller Options: |
|
Structural Frame Enclosure |
|
Super Low Ambient Kit |
|
High Ambient/ Altitude Operation |
|
Stainless Steel Panels and Hardware |
|
Heresite Coated Condenser Coils |
|
Disconnect Switch |
|
VPM Voltage Phase Monitor |
|
System Pump with Integrated Bypass |
|
Mounted Casters (Individual Module) |
|
Remote Operating/Monitoring Panel |
| |
|
|
|
|
Tank Auto-Fill |
|
Tank Level Alarm/ Switch |
|
Tank Fill Pressure Reducing Valve |
|
System Pump VFD |
|
System Pump Pressure Gauge |
|
Flow Switch (paddle) |
|
Vibration Isolation Floor Mounts |
| |
|
| |
|
| |
|
| |
|
|
|
|
| |
| Low Temperature Screw Chiller Modules - Air Cooled |
| Model |
Module
Dimensions |
Capacity @ 95ºF Ambient
(1,000’s BTUH) |
Unit MCA (460/3/60) |
Weight
(Dry) |
| +20ºF LCT |
+10ºF LCT |
0ºF LCT |
-10ºF LCT |
-20ºF LCT |
-30ºF LCT |
| CLS-30-A |
64"L x 26"W x 70"H |
206.9 |
116.7 |
131.2 |
101.1 |
75.2 |
50.8 |
70 |
1,760 lbs. |
| CLS-50-A |
67"L x 28"W x 74"H |
330.0 |
266.0 |
209.3 |
161.4 |
119.9 |
81.2 |
105 |
2,550 lbs. |
| CLS-75-A |
69"L x 28"W x 76"H |
467.9 |
377.1 |
296.8 |
228.8 |
170.0 |
114.9 |
150 |
3,330 lbs. |
| CLS-100-A |
75"L x 30"W x 80"H |
669.6 |
539.7 |
424.7 |
327.4 |
243.3 |
164.5 |
215 |
4,120 lbs. |
| CLS-140-A |
80"L x 34"W x 84 "H |
920.5 |
742.0 |
583.8 |
450.1 |
334.4 |
226.1 |
300 |
4,900 lbs. |
| CLS-190-A |
84"L x 34 "W x 84 "H |
1,278.2 |
1,030.3 |
810.7 |
625.0 |
464.4 |
314.0 |
415 |
5,690 lbs. |
| CLS-250-A |
84"L x 36 "W x 86 "H |
1,656.0 |
1,334.7 |
1050.2 |
809.7 |
601.6 |
407.1 |
530 |
6,480 lbs. |
| CLS-280-A |
90"L x 40 "W x 90"H |
1,953.9 |
1,574.9 |
1239.2 |
955.3 |
709.9 |
480.6 |
615 |
7,260 lbs. |
|
|
| |
| Low Temperature Screw Chiller Modules - Water Cooled |
| Model |
Module
Dimensions |
Capacity @ 85ºF LWT
(1,000’s BTUH) |
Unit MCA (460/3/60) |
Weight
(Dry) |
| +20ºF LCT |
+10ºF LCT |
0ºF LCT |
-10ºF LCT |
-20ºF LCT |
-30ºF LCT |
| CLS-30-W |
64"L x 28"W x 70"H |
233.3 |
190.3 |
152.3 |
119.7 |
91.6 |
66.9 |
55 |
1,600 lbs. |
| CLS-50-W |
67"L x 30 "W x 74"H |
372.1 |
303.6 |
243.0 |
191.0 |
146.1 |
106.7 |
85 |
2,315 lbs. |
| CLS-75-W |
69"L x 30 "W x 76"H |
527.6 |
430.4 |
344.5 |
270.8 |
207.1 |
151.3 |
115 |
3,030 lbs. |
| CLS-100-W |
75"L x 32"W x 80"H |
755.0 |
616.0 |
493.1 |
387.6 |
296.4 |
216.5 |
165 |
3,745 lbs. |
| CLS-140-W |
80"L x 36"W x 84 "H |
1,038.0 |
846.8 |
677.8 |
532.8 |
407.4 |
297.6 |
225 |
4,460 lbs. |
| CLS-190-W |
84"L x 36 "W x 84 "H |
1,440.3 |
1,175.9 |
941.2 |
739.9 |
565.8 |
413.2 |
315 |
5,175 lbs. |
| CLS-250-W |
84"L x 38 "W x 86 "H |
1867.2 |
1,523.4 |
1,219.4 |
958.5 |
733.0 |
535.3 |
415 |
5,890 lbs. |
| CLS-280-W |
90"L x 42 "W x 90"H |
2,203.0 |
1,797.5 |
1,438.7 |
1,131 |
864.8 |
631.6 |
475 |
6,600 lbs. |
|
| |
| *Water Cooled units require 2 GPM per ton condenser water flow. |
|
| |
| |
General Description
The CLS series packaged fluid chillers are designed for applications from +20°F to -30°F leaving coolant temperatures. Air cooled outdoor models have condensers situated atop the packaged equipment enclosure and are constructed with corrosion resistant materials. Water cooled may be designed by securing the compressor above the heat exchanger assembly. Since each application is different, designs may differ slightly. Generally, however, a packaged screw chiller system includes multiple independent compressor/refrigeration circuits, an insulated stainless steel reservoir tank with interior thermal baffle, system pump, and all operating and safety controls. Optionally, a chiller system may be packaged within a lighted walk-in equipment enclosure with a main access door.
The design of the chiller is matched specifically for the operating environment for which it is to be installed. The complete packaged chiller will be set in place, piped, and electrically connected.
Electrical
Compressor Module Electrical Enclosure
A NEMA rated central electrical enclosure & PLC screen are usual requests for larger chiller applications. However, each compressor section can have its own self contained operating and safety panel mounted inside individual enclosures. This panel will include the compressor starters, bypass pump starters, suction and discharge safety controls, and condenser fan VFD (for air cooled models). The panel may be vented through a small vent opening on the bottom along with an exhaust fan. The enclosure includes hinged access with a locking “T” handle for easy access.
The process chiller is complete with single point wiring to the main tie in block. The electrical box and interior of the chiller are weatherproof by means of neoprene gaskets around all accessible openings.
Compressor Run-time Sharing
Each compressor module will utilize a relay to switch the compressors in the circuit with every off-cycle. Run-time will also be share by staging up the final compressors in reverse order. This ensures that compressors share run-time without a more complex logic control.
Fan Controls - Variable Frequency Drives (Option for Air Cooled Models )
Each compressor section is equipped with a 4-20ma pressure transducer located on the discharge line of the compressor. This transducer is directly wired to the Condenser Fan VFD which operates the two condenser fans per compressor section. The VFD, when powered, provides power to the transducer. The scaled pressure range within the VFD senses the discharge pressure of the compressor section and modulating the fan RPM appropriately. Each fan VFD is sized to handle the combined horsepower of both fan motors at design conditions. The VFD’s are rated to operate without de-rating to 122°F. An auto reset electromechanical pressure switch will not allow fan operation below 200 PSI.
The VFD’s also provide the following protections
- Short circuits within internal power supplies
- Short circuits between output phases
- Short circuits between output phases and ground
- Input phase loss
- Thermal protection against overheating and over-currents
- Under-voltage and over-voltage fault
|
| |
|
Screw Chiller System
CLS-450-W (multiple module example) |
| |
| Screw Chiller Module CLS-75-W |
| |
|
|
|
30 hp to 280 hp standard packaged designs |
|
Connectable packages to 1100 hp |
|
Range from +20ºF to –50ºF coolant temp |
|
Large stainless steel reservoir tank |
|
System pump & bypass pump |
|
Standard operating and safety controls |
|
Packaged air or water cooled or remote |
|
Breakers and motor protectors– (No Fuses) |
|
Extreme duty stainless steel fan shroud |
|
Modulating condenser fan with composite prop |
|
Ventilated control cabinet |
|
Indoor/ outdoor operation |
|
| |
| |
| |
|
