Old Honeywell Thermostat Wiring. Whenever your thermostat calls for cooling, the y wire is used to send a signal to your hvac system telling it to fire up the air conditioner. For my setup is this correct:
Honeywell Ct87n4450 Thermostat Wiring Diagram from schematron.org
Connect the brown wire to terminal 4. Two power wires, two control wires, and one ground wire. Web locate the circuit breaker in your home's service panel (breaker box) that controls the heating or cooling system.
Web Most Often, The Wires Will Be Held In Place With A Small Screw.
For my setup is this correct: Connect the brown wire to terminal 4. Web when wiring an old honeywell thermostat, you will typically need four wires:
Check The Boxes And Write Down The Color Of The Wires Connected To Terminals In The Existing Wall Plate.
You may find it helpful to have a small phillips head screwdriver and small regular screwdriver handy to. Do not label the wires by color. Two power wires, two control wires, and one ground wire.
If The Wire Labels From Your Old Thermostat Hookup Don't Match The Above, Honeywell Offers Additional Advice That We Adapt In Table.
(usually a yellow wire is used for that). Web looking for a honeywell thermostat manual? Web the new thermostat has.
I Have An Old Honeywell Thermostat With 2 Wire Conections, I Want To Hook Up A New Honeywell Digital Thermostat But The Old.
Switch the breaker to the off position. Web write down the colors of the wires. The blue wire is used as y, the demand for cool.
Web The Red, White, Green Wires Are Used In The Obvious And Expected Way.
Web locate the circuit breaker in your home's service panel (breaker box) that controls the heating or cooling system. 1 and 2 are dry contact and 3 and 4 is live and neutral. Check all that apply (not all.
