Assertion: heat pump's part | /r/HasProperty | the reversing valve
Facets:
Source sentences:
text: This is very important as the pressure of the refrigerant needs to be reduced so the refrigerant can boil or absorb heat energy at a very low temperature (below 50F which is the earth temperature), and the last part is the reversing valve which allows the same unit to heat and cool by just reversing the flow of energy.