Guide to Thermostat Wiring Color Code: making install 17 rowsDuring installation, the wires are connected to one board that sends certain data through each wire to the thermostat. The system will not operate correctly if the wires are incorrectly connected. The thermostat wire is color coded so the technician can identity which wire goes to MARKINGWIRE COLOR CODEDESCRIPTIONRRedPower, 24 Vac transformerRcRedPower from cooling, 24 Vac transformerRhRedPower from heat, 24 Vac transformerCBlack/BlueCommon of 24 Vac transformerSee all 17 rows on wwwthermostatreviews Videos of honeywell thermostat wiring color code Click to view on YouTube9:34Heat Pump Thermostat Wiring Explained! Colors, Terminals, Functions, Voltage Path!25K viewsYouTube · 5 months agoClick to view on YouTube0:47Thermostat Wiring Color Codes25K viewsYouTube · 4 years agoClick to view on YouTube0:48Thermostat wiring color code decoded490K viewsYouTube · 4 years agoSee more videos of honeywell thermostat wiring color code Thermostat Wiring Colors Code [HVAC Wire Color Details] Thermostat Wiring and Wire Color Chart – Thermostat Wiring Colors Code; Tstat Terminal Designation: Color of Wire and Termination: R – The R terminal is the power. This is a red wire and comes from the transformer usually located in the air handler for split systems but you may find the transformer in the condensing unit.
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