TM 10-8145-222-23
0003
REFRIGERATION UNIT CONTINUED
Design Features of Condenser Assembly
Compressor Pressure Regulating (CPR) Valve. The CPR valve (Figure 6, Item 1) is an adjustable regulating valve
installed on suction line of compressor. It is used to regulate amount of suction pressure entering compressor. CPR
valve is adjusted to maintain maximum suction pressure. Suction pressure is controlled to avoid overloading electric
motor or engine during high box temperature operation.
Figure 6. CPR Valve.