Search: Posts Made By: Allan Rosenow
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05-22-14, 03:44 PM
Replies: 2
Views: 2,628
Posted By Allan Rosenow

Carrier Heat Pump System Control - Part with...

Carrier Heat Pump System Control -
Part with Mercury T874R 1384 / HH07AQ170
Part with wire connections Q674L 1454 / HH93AZ 197
05-22-14, 09:42 AM
Replies: 2
Views: 2,628
Posted By Allan Rosenow

Help with Nest Thermostat wiring for Heat Pump; 2 wires on W2

I am replacing my old thermostat with a Nest (2nd Generation). The wire setup looks good, except that the old thermostat had 2 wires on the W2 terminal (a blue and a white). The Nest only has room...
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