If a technician connects gauges on the line set of the outdoor unit of a heat pump operating in the heating mode, ____.

A. the high pressure gauge will read the high side pressure and the low pressure gauge will most likely be in the RETARD range
B. the high pressure gauge will read the high side pressure and the low pressure gauge will read the suction pressure
C. both gauges will read the suction pressure
D. the high pressure gauge will read the suction pressure and the low pressure will read discharge pressure


Answer: A

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