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What is the purpose of the Y wire on a thermostat?

Harry Rogahn ∙

Lvl 10

∙ 2mo ago

Updated: 2/19/2025

The purpose of the Y wire on a thermostat is to control the air conditioning system. It signals the air conditioner to turn on and cool the space when the temperature rises above the set point on the thermostat.

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Related Questions

What is the purpose of the Y wire in a thermostat?

The purpose of the Y wire in a thermostat is to control the air conditioning system. It signals the air conditioner to turn on and cool the space when the temperature rises above the set point on the thermostat.

What is the purpose of the blue wire in a thermostat?

The purpose of the blue wire in a thermostat is to connect the thermostat to the air conditioning system.

What is the purpose of the brown wire on a thermostat?

The purpose of the brown wire on a thermostat is to connect to the C terminal, which provides power to the thermostat.

What is the purpose of the RH wire on a thermostat?

The purpose of the RH wire on a thermostat is to provide power to the heating system.

What is the purpose of the orange wire on a thermostat?

The purpose of the orange wire on a thermostat is to connect the thermostat to the heat pump, allowing it to control the heating system.

What is the purpose of the R wire on a thermostat?

The purpose of the R wire on a thermostat is to provide power to the thermostat, allowing it to control the heating and cooling systems in a home.

What is the purpose of the blue wire on a thermostat?

The purpose of the blue wire on a thermostat is to connect the thermostat to the air conditioning system for controlling and regulating the cooling function.

What is the purpose of the orange wire in a thermostat?

The purpose of the orange wire in a thermostat is to connect to the heat pump, allowing the thermostat to control the heating function of the system.

What is the purpose of the brown wire in a thermostat?

The purpose of the brown wire in a thermostat is to connect the thermostat to the heating system, typically used for controlling the heating function of the system.

What is the purpose of the yellow thermostat wire in HVAC systems?

The purpose of the yellow thermostat wire in HVAC systems is to connect the thermostat to the air conditioning unit for controlling the cooling function.

What is the purpose of the blue thermostat wire in HVAC systems?

The purpose of the blue thermostat wire in HVAC systems is to connect the thermostat to the air handler or furnace, allowing the thermostat to control the heating and cooling system.

What is the purpose of the white thermostat wire in HVAC systems?

The purpose of the white thermostat wire in HVAC systems is to connect the thermostat to the air handler or furnace, allowing the thermostat to control the heating and cooling system.

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