I'm breaking this question off on a new thread since it's very specific.
I have 2 proposals for basically the exact same configuration, at least in the heat pump compressor and air handler. The problem is, I get 2 different efficiency numbers from different installers. Shouldn't it be the same?
The system is a Carrier Performance
FV4CNF002 air handler
2.5 ton systems
Installer #1 says:
Installer #2 says:
What gives? Are there minor changes within each model # that may affect this?
Thanks in advance.