Hey everyone, I recently upgraded our HVAC system with a new Nest-enabled heat pump, and I’m encountering some challenges that I’m hoping the community can help with. First, some context: we replaced our old AC and furnace with a Bryant heat pump and air handler, both designed to work seamlessly with Nest thermostats. The installation seemed straightforward, but we’re noticing a few quirks that are making our first winter a bit uncomfortable.
The main issues we’re facing are:
- Heating performance: The vents are only reaching around 77-83°F, even when it’s freezing outside. This feels like it’s not providing enough warmth to keep the house comfortable.
- Stage 2 heating behavior: When the second stage kicks in, it feels like the system is just working harder without a significant increase in heat output. This makes me wonder if the system is balanced correctly.
- Energy consumption: Our bills are up by about $200 compared to last year, despite the supposedly more efficient system. This is a concern, especially since we’re relying solely on the heat pump for heating.
Wiring concerns: The installer mentioned that the orange wire (O/B) wasn’t needed for our configuration, but I’m not entirely confident about that. I’ve seen conflicting information online about how Nest systems should be wired, and I’m worried that something might be off. Is there any risk in having an unused wire disconnected?
Looking for advice: Has anyone else experienced similar issues with their Nest heat pump setup? Are there specific wiring configurations or settings that could help optimize performance? Any tips on getting the most efficiency out of a heat pump in a colder climate like San Jose, CA? I’d really appreciate any insights or recommendations!
Thanks in advance for your help! 