Home Heat Pump Wiring. Ground source water source or geothermal heat pumps achieve higher efficiencies by transferring heat between your house and the ground or nearby water source. Heat Pump Thermostat Wiring Chart 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. Ground source water source or geothermal heat pumps achieve higher efficiencies by transferring heat between your house and the ground or nearby water source. This renewable source of heat can be used to create warm air or water for space and central heating as well as hot water for both central heating and domestic hot water supply.
The most common type of heat pump is the air source heat pump which transfers heat between your house and the outside air.
In colder climates heat pumps do require a defrost period during which the electric heater is the primary source of heating the interior of the building. C is known as the common terminal. Heat pump wcc wcd wch wcm and wsc parts only. An air source heat pump is usually placed outdoors at the side or back of a property.