Follett HCE/HME700A, Operation And Service Manua

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LOW PRESSURE LIQUID LOW PRESSURE VAPOR HIGH PRESSURE LIQUID HIGH PRESSURE VAPOR
THERMOSTATIC
EXPANSION
VALVE
HEAT
EXCHANGER
LOW SIDE
REFRIGERATION
LINE RUN
COMPRESSOR
CONDENSER
LOW SIDE
SERVICE PORT
HIGH SIDE
SERVICE PORT
HIGH SIDE
REFRIGERATION
LINE RUN
FILTER-DRIER
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
190/31 220/33 250/35 285/37 315/40
Water-cooled condensers (water)
60
F/
16
C
70
F/
21
C
80
F/
27
C
90
F/
32
C
Pressure (psig)
discharge/suction
215/29 215/31 215/33 215/35
Note: The water control valve is factory set to maintain
215
±
15
psi discharge pressure @
70 F
/21 C water.
Refrigeration system
Refrigerant pressure data