A、A.high-pressure cutout switch is jammed open
B、B.low-pressure switch is jammed shut
C、C.thermal bulb is not operating properly
D、D.scale trap is clogged
更多“If the compressor runs continually, the cause might be the（）”相关的问题
A、a shortage of refrigerant B、the compressor running continuously C、liquid refrigerant returning to the compressor D、the compressor short cycling on the high pressure cutout
A、always be wide open when the compressor restarts B、continue to operate as if the system were in operation C、remain open until evaporator pressure equalizes, then close until the compressor restarts D、always be completely closed until the compressor restarts
A、refrigerant overcharge B、overfeeding by the expansion valve C、a restricted suction strainer D、due to short cycling of the compressor
A、run continuously B、not start C、have high discharge pressure D、short cycle on the high pressure switch
A、continuous running of the compressor B、high suction pressure C、high discharge pressure D、short cycling of the compressor on the water failure switch
A、the cooling effect of the condensate reduces the compressors efficiency B、a danger of explosion exists whenever water is present in a compressor C、water causes erratic operation of pneumatic components D、the volumetric capacity of the first stage is reduced if water remains
A、a shortage of compressor oil B、warm food in the refrigerator C、excessive condenser cooling water D、a shortage of refrigerant
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
A、excessive condenser cooling water B、warm food in the refrigerator C、a shortage of refrigerant D、s shortage of compressor oil
A、High pressure compressors are more efficient than low pressure compressors B、Mechanical efficiency divided by compressor efficiency will equal the overall efficiency of the compressor unit C、Two stage compressors are generally more efficient than single stage compressors D、The volumetric efficiency is decreased in multistage compressors
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