In heat pump system there are at least 8 wires that need to be connected to the thermostat for proper operation.
Heat pump system diagram.
The evaporator coil is located inside the box usually in the freezer compartment.
A heat pump is an air conditioning system which can also provide very efficient heating.
A refrigerator is essentially an insulated box with a heat pump system connected to it.
The system contains an outdoor unit that looks similar to an air conditioner and an indoor air handler.
These two system components maintain the flow of refrigerant through the heat pump system and also maintain the heat transfer coils at the desired temperatures and pressures.
Thanks to a reversing valve a heat pump can change the flow of refrigerant and either heat or cool a home.
In addition to the evaporator and condenser the heat pump system also has a compressor and a metering device.
Air is blown over an evaporator coil transferring heat energy from the air to the refrigerant.
Just as a refrigeration system removes and relocates heat from a cooler or freezer so too does a heat pump remove heat from cold outdoor air and relocate it to within a building.
Heat pump thermostat wiring a typical wire color and terminal diagram as shown in the diagram you will need to power up the thermostat and the 24v ac power is connected to the r and c terminals.
A heat pump system has four major system components.
It takes less energy to relocate heat than it does to create it.
Heat is absorbed from this location and transferred outside usually behind or underneath the unit where the condenser coil is located.