单选题What is the purpose of sub cooling R-12 in the condenser?（）Ato increase the system efficiency by sensible heat transferBto stop the liquid from flashingCto reduce the load on the compressorDto remove latent heat of vaporization and the suction piping transfer
单选题
What is the purpose of sub cooling R-12 in the condenser?（）
A
to increase the system efficiency by sensible heat transfer
B
to stop the liquid from flashing
C
to reduce the load on the compressor
D
to remove latent heat of vaporization and the suction piping transfer
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