Heat pumps have a reversing valve in the outside unit. You are hearing a balance of refrigerant pressures when the reversing is energized or de-energized.
It`s rated capacity in sensible and latent heat.
Yes, as long as it a gas system and not a electric heat pump system
my copper lines freezing on central air unit.
Could it be because an air conditioner is not designed to produce heat?
There is a penguin in there and it throws ice into the air condicioning and the heat melts the ice and turns it into air.
Central Air Conditioners are installed into your house to provide cooling air in every room using a duct system. They are very refreshing on a hot day.
You've got trouble with your heater fan - or the motor that turns it. Same fan for both heat and AC.
An air conditioner blows out heat
No, an air conditioner is designed to cool a room by removing heat, not to heat a room.
In a house with a central air conditioner, the heat from the upstairs is removed by the evaporator coil in the air handler unit. The heat is transferred to the refrigerant and expelled outside of the house through the condenser unit. The cooled air is then circulated back into the upstairs living space.
Have a reputable A/C contractor perform a Manual J(heat load calculation on your home).
An air conditioner if functioning as air warmer or air chiller can be called as a type of heat pump. If an air conditioner is working as an air de-humidifier then it no more a heat pump.