A.dirty delivery ducts
B.too much refrigerant
C.the fouling filters
D.high temperature outside
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A.a water cooled condenser
B.a slop tank
C.a expansion tank
D.a centrifugal pump
A.a centrifugal fan
B.a direct expansion cooler
C.a hermetic compressor
D.a centrifugal pump
A.central air conditioning system
B.high velocity system
C.low velocity system
D.single duct system
A.central air condition system
B.high velocity system
C.low velocity system
D.single duct system
A.mechanical energy
B.heat energy
C.potential energy
D.kinetic head
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