Hi or377,
Yikes! If you have a heat pump as part of your HVAC system and you're unsure about the proper wiring for the black and white wires, here's some guidance that might help:
The black and white wires are typically associated with the reversing valve in a heat pump system. The reversing valve controls the direction of refrigerant flow in the heat pump, allowing it to switch between heating and cooling modes. The specific wiring configuration can vary depending on the system and thermostat model you have. In many cases, the black wire is used to control the reversing valve, while the white wire is used for the common (C) connection. However, it's important to consult the wiring diagram and documentation specific to your heat pump and thermostat to ensure the correct wiring configuration. To determine the proper wiring for your system, you can refer to the following resources:
- Check the user manual or installation guide provided with your Nest Thermostat. It should include a wiring diagram and instructions specific to your model.
- Consult the wiring diagram for your heat pump. This diagram is typically located on the inside of the heat pump's access panel or in the installation manual provided by the manufacturer. The diagram will indicate the proper connection points for the reversing valve and common wire.
If you're still unsure about the correct wiring configuration, it's recommended to reach out to a professional HVAC technician or an electrician. They can inspect your system, identify the appropriate wiring setup, and ensure that it's properly connected. They will also be able to troubleshoot any issues with your heat pump and help address the high electric bill. Remember, working with electrical components can be dangerous if you're not experienced or comfortable with it. It's always best to seek professional help to ensure the safety and proper functioning of your HVAC system.
Keep us posted.
Best,
Zoe
