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23
Low pressure vapor
Low pressure liquid
High pressure liquid
compressor
low side
refrigeration
line run
heat exchanger
condenser
low side
service port
high side
service port
thermostatic
expansion
valve
filter
dryer
high side
refrigeration
line run
High pressure vapor
Refrigeration system diagram
Air-cooled condensers (air) 60 F/16 C 70 F/21 C 80 F/27 C 90 F/32 C 100 F/38 C
Pressure (psig) discharge/
suction
218/31 241/33 277/35 313/38 349/41
Water-cooled condensers
(water)
60 F/16 C 70 F/21 C 80 F/27 C 90 F/32 C 100 F/38 C
Pressure (psig) discharge/
suction
219/33 225/33 231/33 232/34 236/40
Note: The water control valve is factory set to maintain 230 ± 15 psi discharge pressure @ 70 F water.
Refrigeration system
Refrigerant pressure data
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