Nest 2nd Gen Thermostat Emergency Heat Wiring


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Old 03-13-13, 07:20 PM
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Nest 2nd Gen Thermostat Emergency Heat Wiring

I just recently installed a 2nd Gen Nest thermostat and it's working great! The only thing is my old Honeywell Thermostat had a jumper wire from AUX to E. I do not have a wire connected to E, just the jumper. I was told the Nest does not require jumpers. Is there anyway to use one of the spare wires and connect a spare wire to E on the air handler in the attic? Thanks!
 
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Old 03-14-13, 07:39 AM
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I am not up on these stat, and the manual on line says nothing.....

If you only had one wire on on Aux/E then you just wire it to Aux on the new stat..

Have you switched over to Emergency heat before?
 
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Old 03-15-13, 06:27 AM
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No, I have never had to use emergency heat but nice to have a backup in the winter. I took the cover off of the unit in the attic and there is no terminal labeled E, hence the jumper that was between AUX & E.
 
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Old 03-15-13, 07:35 AM
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There will be no E on the air handler. It's W1, W2. W3. If the air handler had more than one banks, then we'd stage it.. W1 on Aux, W2 and W3 wired together on Aux2.
 
 

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