How to wire condenser and air handler to the t-stat
Assuming this is a standard unit the thermostat connections you will use: Y, R, G, W and possibly C.
Run two conductor thermostat wire to the condenser. The condenser will have two wires to connect. Connect the two conductors to the condenser wires and run them in to the air handler.
At the air handler, connect the two condenser wires to: Y (yellow) and C
Run 4 or 5 conductor thermostat wire from the air handler to the thermostat. At the thermostat, connect the yellow wire to Y, the white wire to W, the green wire to g, and the red wire to r.
At the air handler, connect the thermostat wires: White to w1, yellow to Y, green to G, and red to R
*Y will now be connected to the thermostat and the condenser
*If you have 5 conductor wire to the thermostat, connect the last wire (which is probably blue) to C
At the air handler, connect the last wire (blue) to C. This will enable you to have 24 volts at the thermostat in case the thermostat actually requires 24 volts to operate it.
May 19, 2011 |