A. The minimum installation clearance varies by series and model as shown in the table below. In addition, air flow from the condenser fan(s) must not be restricted in any way and care must be taken to avoid recirculation of air from the condenser fan(s). Refer to the unit’s user manual for further installation requirements.

Series & Model Front * Back * Left * Right *
ACW 31” (800 mm) 31” (800 mm) 31” (800 mm) 31” (800 mm)
QBS 31” (800 mm) 31” (800 mm) 31” (800 mm) 31” (800 mm)
QBE 002~007 31” (800 mm) 31” (800 mm) 31” (800 mm) 31” (800 mm)
QBE 008~025 31” (800 mm) 31” (800 mm) 4” (100 mm) 31” (800 mm)
CWT 007~015 39” (1000 mm) 39” (1000 mm) 31” (800 mm) 59” (1500 mm)
CWT 018~150 39” (1000 mm) 39” (1000 mm) 59” (1500 mm) 59” (1500 mm)
CWE 39” (1000 mm) 31” (800 mm) 0” (0 mm) 59” (1500 mm)
CWE 39” (1000 mm) 31” (800 mm) 59” (1500 mm) 0” (0 mm)
HWE 39” (1000 mm) 31” (800 mm) 59” (1500 mm) 59” (1500 mm)
CWB 59” (1500 mm) 59” (1500 mm) 59” (1500 mm) 59” (1500 mm)
CWM 31” (800 mm) 31” (800 mm) 31” (800 mm) 31” (800 mm)

* Front refers to the end of the chiller where the controller is located. Back, Left, and Right are relative to standing and facing the Front of the chiller.

A. The diagrams below show the components recommended for our QBE chillers, depending on whether the tank is non-pressurized (i.e., “open” or “atmospheric” tank) or pressurized (“closed” tank). Refer to the appropriate unit’s user manual as some of these components may be factory installed or shipped loose for field installation. The user manual also provides additional model-specific details and recommendations.

Recommended water circuit for chiller with integral non-pressurized water storage tank:

Diagram: Chase Chillers

Recommended water circuit for chiller with integral pressurized water storage tank:

Diagram: Chase Chillers
Legend: 1 – Ball valve, full-port 6 – Temperature gauge
2 – Strainer, 20 mesh or finer 7 – Drain
3 – Vibration dampener 8 – Automatic fill valve
4 – Vent valve 9 – Check valve
5 – Pressure gauge 10 – Expansion vessel

A. Refer to the table below, showing the heat rejection for each model at nominal rating conditions of 95°F ambient, 55°F fluid inlet, and 45°F fluid outlet with 0% glycol concentration.

Model * Heat Rejection (Btu/h)
QBE 002-E 9,810
QBE 003-E 10,182
QBE 004-E 13,985
QBE 005-E 16,040
QBE 006-E 20,174
QBE 007-E 27,735
QBE 009-E 28,137
QBE 012-E 36,163
QBE 005-R 20,263
QBE 006-R 24,477
QBE 007-R 29,442
QBE 009-R 29,381
QBE 012-R 40,222
QBE 014-R 49,250
QBE 020-R 58,816
QBE 025-R 75,428
CWT 010-R 27,372
CWT 015-R 45,313
CWT 018-R 57,142
CWT 020-R 71,156
CWT 030-R 88,415
CWT 038-R 116,094
CWT 040-R 144,652
CWT 045-R 136,317
CWT 055-R 171,215
CWT 065-R 211,111
CWT 075-R 226,669
CWT 090-R 284,551
CWT 110-R 338,276
CWT 130-R 429,469

 

Model * Heat Rejection (Btu/h)
CWE/HWE 013-R 47,122
CWE/HWE 021-R 72,815
CWE/HWE 026-R 84,047
CWE/HWE 036-R 112,316
CWE/HWE 041-R 143,944
CWE/HWE 046-R 158,288
CWE/HWE 053-R 183,012
CWE/HWE 068-R 215,980
CWE/HWE 075-R 221,641
CWE/HWE 085-R 281,501
CWE/HWE 100-R 323,540
CWE/HWE 110-R 363,143
CWE/HWE 125-R 406,109
CWE/HWE 140-R 459,584
CWB 140-R 442,375
CWB 160-R 546,599
CWB 190-R 591,547
CWB 220-R 712,786
CWB 270-R 852,579
CWB 300-R 960,112
CWB 320-R 1,018,275
CWB 380-R 1,180,863
CWB 420-R 1,318,320
CWB 450-R 1,451,640
CWB 510-R 1,609,285
CWB 570-R 1,852,009

* Model suffix indicates voltage: E = 230/1/60 R = 460/3/60

A. Minimum wire size and maximum fuse size are shown below for each model. Refer to the appropriate wiring diagram for further electrical details.

 

Model * Maximum Fuse Size Minimum Wire Size
QBE 002-E 10 16 AWG
QBE 003-E 16 14 AWG
QBE 004-E 16
QBE 005-E 16
QBE 006-E 20 12 AWG
QBE 007-E 25
QBE 009-E 25
QBE 012-E 32
QBE 005-R 10 14 AWG
QBE 006-R 10
QBE 007-R 12
QBE 009-R 10
QBE 012-R 12
QBE 014-R 16 12 AWG
QBE 020-R 16
QBE 025-R 20
Model* Maximum Fuse Size Minimum Wire Size
CWT 010-R 10 12 AWG
CWT 015-R 12
CWT 018-R 16
CWT 020-R 20
CWT 030-R 25 8 AWG
CWT 038-R 32
CWT 040-R 32
CWT 045-R 35 6 AWG
CWT 055-R 40
CWT 065-R 50
CWT 075-R 60 4 AWG
CWT 090-R 63
CWT 110-R 75
CWT 130-R 75 2 AWG

 

Model * Maximum Fuse Size Minimum Wire Size
CWE/HWE 013-R 10 12 AWG
CWE/HWE 021-R 16
CWE/HWE 026-R 20
CWE/HWE 036-R 25 10 AWG
CWE/HWE 041-R 32
CWE/HWE 046-R 32 8 AWG
CWE/HWE 053-R 40
CWE/HWE 068-R 50 6 AWG
CWE/HWE 075-R 63 4 AWG
CWE/HWE 085-R 63
CWE/HWE 100-R 63
CWE/HWE 110-R 80 2 AWG
CWE/HWE 125-R 80
CWE/HWE 140-R 80
Model* Maximum Fuse Size Minimum Wire Size
CWB 140-R Refer to Wiring Diagram Refer to Wiring Diagram
CWB 160-R Refer to Wiring Diagram Refer to Wiring Diagram
CWB 190-R Refer to Wiring Diagram Refer to Wiring Diagram
CWB 220-R Refer to Wiring Diagram Refer to Wiring Diagram
CWB 270-R Refer to Wiring Diagram Refer to Wiring Diagram
CWB 300-R Refer to Wiring Diagram Refer to Wiring Diagram
CWB 320-R Refer to Wiring Diagram Refer to Wiring Diagram
CWB 380-R Refer to Wiring Diagram Refer to Wiring Diagram
CWB 420-R Refer to Wiring Diagram Refer to Wiring Diagram
CWB 450-R Refer to Wiring Diagram Refer to Wiring Diagram
CWB 510-R Refer to Wiring Diagram Refer to Wiring Diagram
CWB 570-R Refer to Wiring Diagram Refer to Wiring Diagram

* Model suffix indicates voltage: E = 230/1/60 R = 460/3/60

A. Glycol must be used in applications where the chiller is installed outdoors or when fluid temperatures below freezing are required. The freezing point of the water-glycol solution depends on the type and concentration of glycol, and whether or not the glycol contains inhibitors for corrosion protection. The table below provides a rough guide of the ethylene glycol concentration required for various ambient or operating temperatures. Check with your glycol supplier to ensure your system has adequate freeze protection. Choose a glycol concentration that results in a freezing point of several degrees below the lowest anticipated ambient or operating temperature.

Temperature (°C) 0 -5 -10 -12 -15
Temperature (°F) 32 23 14 10.4 5
Ethylene glycol (% by volume) 10 15 20 25 30

A. Install a buck-boost transformer to “boost” the 208/1/60 power supply to the 230/1/60 that the chiller requires. Contact Chase Cooling Systems or a certified electrician for proper transformer selection.