單項(xiàng)選擇題
A.thermal valve B.magnetic stop valve C.bellows valve D.bimetallic valve
A.high-pressure cutout switch is jammed open B.low-pressure switch is jammed shut C.thermal bulb is not operating properly D.scale trap is clogged
A.in the middle of evaporator coils B.near the evaporator coil outlet C.near the evaporator coil inlet D.on the bottom row of evaporator coils
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