REFRIGERANT FLOW DIAGRAMS
PRHR022A, PRHR032A, PRHR042A Heat Recovery Units
A: Switch operation between cooling and heating.
A: Switch operation between cooling and heating.
B: Decreases noise following subcooling operation between inlet of one indoor unit and outlet of
another indoor unit during simultaneous operation.
C: Prevents liquid from entering high-pressure vapor valve and heat recovery unit during cooling mode.
D: Controls pressure between the high and low pressure vapor pipes during simultaneous operation.
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