How does a heat pump use freon to heat?

Answer:
A valve is used to reverse the flow of freon. In the heat mode, the high or hot side gas is pumped to the indoor unit, The low or cold side is pumped to the outdoor unit. The valve is reversed for the cool mode. Pumping cool gas to the indoor unit and hot gas to the outdoor unit.
First answer by ID3493748226. Last edit by ID3493748226. Question popularity: 2 [recommend question].