Mixed Units: Carrier air handler with Rheem heat pump condenser


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Old 01-29-23, 03:10 PM
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Mixed Units: Carrier air handler with Rheem heat pump condenser

Carrier Air Handler and Outside unit Rheem - 1) Are they compatible?
If so, what is the wiring FOR THERMOSTAT, AIRHANDLER, OUTSIDE UNIT

(Heagstat H721 Non-Programmable Heat Pump Thermostat, 2 Heat/1 Cool)
Any help would be appreciated.
 
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Old 01-29-23, 04:28 PM
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Welcome to the forums.

I'm predominantly in servicing but you can mix and match units as long as the specs.
You'd need to be using a Carrier heat pump air handler with the heat pump condenser.
The coil and the TXV in the air handler is what needs to match.

Will the air handler have back up electric heat ?

You need 7 wires from thermostat to air handler. I'd run 8 wires.
You need 5 wires from air handler to condenser. I'd run 6. You could also use 8 wire.

I can give you the exact diagram when you get your equipment finalized.
 
 

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