单项选择题
A.defective thermal bulb B.clogged scale trap C.stuck high-pressure switch D.stuck low-pressure switch
Which of the following would not cause high suction pre...
单项选择题Which of the following would not cause high suction pressure?（）
A.insufficient refrigeration B.leaky suction valves C.expansion valve stuck open D.suction valve not adjusted properly
If the high-pressure switch on the compressor opens and...
单项选择题If the high-pressure switch on the compressor opens and stops the compressor a possible cause could be:（）
A.too much cooling water going through the condenser B.not enough refrigerant in the system C.a leak in the evaporator coils D.no enough cooling water going through the condenser
The scale trap is located between the （）A.king valve an...
单项选择题The scale trap is located between the （）
A.king valve and the expansion valve B.solenoid valve and expansion valve C.evaporator and receiver D.compressor and evaporator
