單項(xiàng)選擇題

Which of the following may cause that the compressor cuts off on high pressure cutout in a refrigeration plant? ()
(1) faulty condensing
(2) too few refrigerant
(3) high discharge pressure

A.any of (1) and (3)
B.any of (1) and (2)
C.any of (2) and (3)
D.any of (1), (2) and (3)


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