2Wire Thermostat Wiring Diagram Payne
Get 2Wire Thermostat Wiring Diagram Payne Images. Almost all of the '2 wire thermostat' models available in the market are 'non programmable' types. It's a good idea to take a picture of your existing thermostat wiring before replacing it with nest as this is the nest wiring diagram:
It's a good idea to take a picture of your existing thermostat wiring before replacing it with nest as this is the nest wiring diagram:
Anyone has any clue what / why the other black wire is connected to the y terminal (along with the yellow wire) on my existing. The new stat which has 4 terminals which are 2, 1, n, n. As shown in the diagram, you will need to power up the thermostat and the 24v ac power is connected to the r and c terminals. The basic heat + a/c system thermostat typically utilizes only 5 terminals.
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