To wire a heat pump, start by identifying the components: the outdoor unit (compressor), indoor unit (air handler), and thermostat. Always ensure the power is off before beginning.
Basic Wiring Steps:
- Thermostat Wiring:Common connections include:
- R (Red): Power (24V)
- Y (Yellow): Compressor
- G (Green): Fan
- O/B (Orange/Blue): Reversing valve (for heat/cool mode)
- C (Common): Continuous 24V power
- Outdoor Unit Wiring: This connects to the indoor unit and thermostat via low-voltage wires.
- Control Board: Inside the air handler, match the thermostat wires to the control board terminals as per the wiring diagram.
Important Tips:
- Refer to the Manual: Always consult the installation manual or wiring diagram specific to your heat pump model. If missing, search online using the make and model.
- Get Professional Help: If unsure, it’s best to consult an HVAC technician to avoid improper wiring.