Original Totaline Thermostat Wiring Diagram P474 Totaline Thermostat Wiring Diagram I'M Installing A Honeywell

Original Totaline Thermostat Wiring Diagram P474 Totaline Thermostat Wiring Diagram I'M Installing A Honeywell
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Original Totaline Thermostat Wiring Diagram P474 Totaline Thermostat Wiring Diagram I'M Installing A Honeywell - Thanks a lot for taking some time and information to aid my worries. Now not best did you answer my questions, you even took it a step further with replying with extra pertinent records i needed to recognize.

So, to make things simpler and to see if i broke some thing within the changeover, i reinstalled the vintage tstat and checked the lines. Cooling works successfully. The massive copper line is warm in the back of the a/c unit and the small copper line is cold. I assume i'm going to just maintain the antique unit mounted for now. Set to work the next day and it's getting past due. Thanks on your assist.

The a/c did paintings successfully with the antique thermostat. The o terminal appears to also had been the w1 and b terminal. The picture indicates what i mean. My white twine changed into connected to that b/o/w1.

Nope, no wire connected to w2 on the antique thermostat. Very well, looks like it's wired adequate. Set my thermostat features to one on 1 (heatpump) and a pair of on 0 (cooling changeover valve). The ones settings make the system inoperative with "cooling on" or "heating on" blinking whilst looking to spark off those modes. Must i trade the setting to two on 1 (heating changeover valve)?.

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Nope, no warmness, no cool, no fan. No luck entering into the attic to check the air handler, but here's a image of the wires going into my outdoor unit. Here are the matters that my thermostat guide says about wiring for a heat pump and flashing warmness on and cool on in the display.

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