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FORM 201.24-EG1
9
YORK INTERNATIONAL
Low-pressure liquid refrigerant enters the cooler tubes and is evaporated and superheated by the heat energy absorbed
from the chilled liquid passing through the cooler shell. Low-pressure vapor enters the compressor where pressure and
superheat are increased. High-pressure vapor is passed through the oil separator where heat is rejected to the con-
denser water passing through the tubes. The fully condensed and subcooled liquid leaves the condenser and enters the
expansion valve, where pressure reduction and further cooling take place. The low pressure liquid refrigerant then
returns to the cooler. Each refrigerant circuit utilizes liquid injection, maintaining efficient oil temperature operation
within the compressor.
High Pressure Superheated Vapour
High Pressure Subcooled Liquid
Low Pressure Liquid
Oil
Low Pressure Superheated Vapour
SV = Solenoid Valve
SG = Sight Glass
TEV = Thermostatic Expansion Valve
Refrigerant Circuit No 2
SV
Oil
Separators
SG
Compressor
Cooler
Condenser
Oil Cooling
Liquid Injection
TEV
SG
Relief
Valve
Relief
Valve