Question about Heating & Cooling
On your t-stat you have Y, W1, W2, R, O, G, B or C or X. Y is your cooling circuit and will be the same in the air handler and heat pump unit, use the yellow wire for this circuit. W1 and W2 are your back up elec. or gas heat. Depending on how many kws or heat strips you have and t-stat wires you will put the white wire to W1 in both the t-stat and air handler. W2 is for your second stage back up heat if air handler calls for it, this will be a tan or brown or black t-stat wire and goes to W2 on t-stat and air handler. R is half of your 24v control power from the transformer and is the red wire and goes to the t-stat, air handler, and heat pump. O is for the reversing valve in the heat pump that switches it from heating and cooling. You guessed it the orange wire connect to t-stat and heat pump. G is for the blower and is the green wire to the t-stat and air handler. B or C or X is known as the common which is the other half of control circuit from 24v transform it is the blue wire and goes to the t-stat, air handler, and heat pump.
Posted on Oct 09, 2008
TURN THE POWER OFF TO THE UNIT. TAKE THE BACK PANEL OF OF THE HEAT PUMP AND LOOK FOR A SQUARE PLASTIC BAG FASTENED TO THE INSIDE OF THE UNIT, IT MAY BE LOCATED BY THE CONTACTS AND SYSTEM WIRING OR ON THE PANEL ITSELF. REMOVE THE PAPER FROM THE PLASTIC AND THIS SHOULD CONTAIN YOUR WIRING DIAGRAM. ALSO LOOK ON THE BACK OF THE PANEL ITSELF FOR THE DIAGRAM. SOMETIMES THE DIGRAM IS PRINTED THERE.
Posted on Apr 13, 2010
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