Installation
Remove the Old Thermostat
1.Turn off power to the heating and cooling system.
2.Remove the front cover of the old thermostat, this usually pulls off.
3.Loosen the screws that hold the thermostat to the wall.
4.Identify each wire attached to the old thermostat.
5.Disconnect the wires from old thermostat one at a time. DO
NOT LET WIRES FALL BACK INTO THE WALL.
Install the New Thermostat
1.Open the battery door and detach the new thermostat cover from the base.
2.With the base flush against the wall, mark mounting hole locations on wall.
3.Move base out of the way and drill mounting holes.
4.Push wires through wire opening.
5.Position the base on the wall again and screw the mounting screws into the wall anchors.
6.Connect each wire coming from the wall to its corresponding terminal as shown in Fig. 2 on page 7.
Press down | L |
| |
| G |
| Y |
| W2 |
Insert | O/B |
Wire | C |
| |
| R |
Wire Terminal Block
NOTE
Wires will not be connected to all terminals of the terminal block.
Battery
Door
Mounting
Hole
Mounting
Hole
FAN |
|
|
(Ele/Gas) | O/B | Opening |
Switch | Switch | for wires |
Figure 1. Thermostat Base
Set Switches
Fan (Ele/Gas) Switch
For Electric Heat, heat pump or any system that requires the thermostat to turn on the blower on a call for heat– place the FAN (Ele/Gas) switch (Fig. 1) in the ON position. For Auxiliary and Emergency Heat systems that have a fan control to turn on the blower (independent of the thermostat) place switch in the OFF position.
O/B Terminal Switch Selection
The O/B switch on this thermostat is factory set to the “O” position. This will accommodate the majority of heat pump applications, which require the changeover relay to be energized in COOL. If the thermostat you are replacing or the heat pump being installed with this thermostat requires a “B” terminal, to energize the changeover relay in HEAT, the O/B switch must be moved to the “B” position.
Check Thermostat Operation
Heating System
1.Move SYSTEM switch to HEAT position. If the heating system has a standing pilot, be sure to light it.
2.Press 
to adjust thermostat setting to 1° above room temperature. The heating system should begin to operate.
3.Press 
to adjust temperature setting below room temperature. The heating system should stop operating.
Fan Operation
If your system does not have a G terminal connection, skip to Heating System.
1.Move SYSTEM switch to OFF position.
2.Move fan switch to ON position. The blower should begin to operate.
3.Move fan switch to AUTO position. The blower should stop immediately.
Cooling System
1.Move SYSTEM switch to COOL position.
2.Press 
to adjust thermostat setting below room temperature. The blower should come on immediately on high speed, followed by cold air circulation. However, if the setpoint temperature is flashing, the compressor lockout feature is operating (see Configuration menu, item 5).
3.Press 
to adjust temperature setting above room temperature. The cooling system should stop operating.
Emergency System
EMER bypasses the Heat Pump to use the heat source wired to terminal W2 on the thermostat. EMER is typically used when compressor operation is not desired, or you prefer back- up heat only.
1.Move SYSTEM switch to EMER position, EMER will flash on the display.
2.Press 
to adjust the thermostat above room tempera- ture. The Aux heating system will begin to operate. The Flame icon (
) will display flashing to indicate that the Aux system is operating.
3.Press 
to adjust the thermostat below room tempera- ture. The AUX heating system should stop operating
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