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Packaged Low Temperature Chillers
CLL Series: -60ºF to -100ºF LCT |
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The CLL series is designed to provide a packaged low temperature chiller solution to your process
needs. This fully packaged system includes a robust and high efficiency cascade refrigeration circuit.
The integrated tank, pump, and controls make set up and operation of the chiller easy and reliable. |
| Major Features of the CLL Series: |
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Packaged air or water cooled chiller designed to ideally match your requirements |
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Industrial cascade refrigeration circuit |
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Extreme duty stainless steel fan shroud ( air cooled models) |
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Breakers and motor protects - No Fuses |
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Large stainless steel reservoir tank with system and bypass pump assembly |
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Indoor/Outdoor operation |
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Ventilated Control Cabinet (NEMA rated optional) |
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| Process Chiller Options: |
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Mounted Casters |
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Super Low Ambient Kit |
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High Ambient/ Altitude Operation |
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Stainless Steel Panels and Hardware |
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Heresite Coated Condenser Coils |
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Disconnect Switch |
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VPM Voltage Phase Monitor |
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40 PSI Pump @ rated GPM |
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50 PSI Pump @ rated GPM |
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60 PSI Pump @ rated GPM |
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70 PSI Pump @ rated GPM |
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80 PSI Pump @ Rated GPM |
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90 PSI Pump @ Rated GPM |
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100 PSI Pump @ Rated GPM |
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Tank Auto-Fill |
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Tank Level Alarm/ Switch |
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Tank Fill Pressure Reducing Valve |
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System Pump VFD |
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System Pump Pressure Gauge |
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Flow Switch (paddle) |
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Vibration Isolation Floor Mounts |
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Remote Operating/Monitoring Panel |
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| Low Temperature Air Cooled Process Chillers |
| Model |
Physical
Dimensions |
Unit MCA (460/3/60) |
Capacity @ 95ºF Ambient
(1,000’s BTUH) |
Supply/ Return
Pipe Size |
Condenser CFM |
Shipping Weight |
| -60ºF LCT |
-80ºF LCT |
-100ºF LCT |
| CLL-15-A |
6'L x 4' W x 6'H |
30 |
18 |
11 |
6 |
1-1/4" |
5,200 |
2,100 lbs. |
| CLL-30-A |
8'L x 4' W x 8'H |
40 |
30 |
23 |
12 |
1-1/2" |
8,000 |
2,400 lbs. |
| CLL-50-A |
8'L x 8' W x 10'H |
60 |
64 |
42 |
22 |
2" |
12,000 |
3,900 lbs. |
| CLL-60-A |
8'L x 8' W x 10'H |
60 |
84 |
51 |
29 |
2" |
16,000 |
4,900 lbs. |
| CLL-70-A |
10'L x 8' W x 10'H |
70 |
109 |
61 |
41 |
2" |
24,000 |
5,750 lbs. |
| CLL-110-A |
12'L x 8' W x 10'H |
100 |
150 |
93 |
52 |
2" |
32,000 |
7,200 lbs. |
| CLL-145-A |
12'L x 8' W x 10'H |
130 |
180 |
110 |
61 |
3" |
40,000 |
8,500 lbs. |
| CLL-155-A |
12'L x 8' W x 10'H |
140 |
199 |
129 |
80 |
3" |
48,000 |
9,800 lbs. |
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| Low Temperature Water Cooled Process Chiller |
| Model |
Physical
Dimensions |
Unit MCA (460/3/60) |
Capacity@ 85ºF Water Temp
(1,000’s BTUH) |
Supply/ Return
Pipe Size |
Condenser Water
Pipe Size |
Shipping Weight |
| -60ºF LCT |
-80ºF LCT |
-100ºF LCT |
| CLL-15-W |
6'L x 4' W x 6'H |
20 |
20 |
13 |
8 |
1-1/4" |
1" |
2,400 lbs. |
| CLL-30-W |
8'L x 4' W x 8'H |
30 |
32 |
25 |
14 |
1-1/2" |
1-1/4" |
2,700 lbs. |
| CLL-50-W |
8'L x 8' W x 8'H |
50 |
66 |
44 |
24 |
2" |
2" |
4,200 lbs. |
| CLL-60-W |
8'L x 8' W x 8'H |
60 |
87 |
54 |
32 |
2" |
2-1/2" |
5,200 lbs. |
| CLL-70-W |
10'L x 8' W x 8'H |
70 |
112 |
64 |
44 |
2" |
2-1/2" |
6,150 lbs. |
| CLL-110-W |
12'L x 8' W x 8'H |
100 |
153 |
96 |
55 |
2" |
2-1/2" |
7,500 lbs. |
| CLL-145-W |
12'L x 8' W x 8'H |
130 |
186 |
116 |
67 |
3" |
2-1/2" |
8,800 lbs. |
| CLL-155-W |
12'L x 8' W x 8'H |
130 |
205 |
135 |
86 |
3" |
2-1/2" |
9,800 lbs. |
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| *Water Cooled units require 2 GPM per ton condenser water flow. |
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General Description
The CLL series packaged fluid chillers are designed for applications from -60°F to -100°F leaving coolant temperatures. Air cooled outdoor models have condensers situated atop the 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, the chiller package 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 (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
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