WIRING TABLE
CONFIGURATION Y1 Y2 W2 OB/W R/C R/H G
Cooling Only
Air Conditioner Furn. Off AC x x x
2 Air Conditioner Furn. Off AC1 AC2 x x x
Heating Only
No Compressor Electrical Furn. El.Furn El.Furn2* x x x
No Compressor Emg. El. Furn. Emg. El. Furn. El.Furn El.Furn2* x x x
No Compressor Gas Gas Gas2* x x x
No Compressor Oil Oil Oil2* x x x
No Compressor 2 Stage Gas Gas1 Gas2 x x x
* if there is another furnace, then connect it to OB/W relay.
1 Stage Cooling, 1 Stage Heating
Heat Pump Furn. Off HP OB x x x
Air Conditioner Electrical Furn. AC El.Furn x x x
Air Conditioner Emg. El. Furn. AC Emg. El. Furn. El.Furn x x x
Air Conditioner Gas AC Gas x x x
Air Conditioner Oil AC Oil x x x
MOUNTING THE THERMOSTAT TO THE WALL
1. Make sure to turn off the power supply located at the electrical service panel. All heating and
cooling units should be OFF.
2. Remove the cover plate by pulling up the cover from the left or right side only.
3. Align the thermostat unit to the wall.
4. Mark the two locations for drilling the 3/16” holes required for the plastic screw anchors.
5. Remove the thermostat and drill the two 3/16” holes in these locations.
6. Insert the plastic gyproc screw anchors and tighten them securely.
7. Make the appropriate wire connections based on the specifications of the household HVAC unit(s).
Please refer to Wiring Diagram to determine the appropriate wire connections.
8. Securely mount the thermostat unit to the wall with the two supplied screws.
9. Fit the cover plate back by clipping one side first (left or right) and than push down on the
opposite side.
10. Turn on the electricity at the electrical service panel.
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