McQuay LIA303

10
Configuration Mode
OFF
PM
1. Verify the McQuay thermostat is in the OFF mode.
Press the SYS (left) button until off mode displays.
2. Remove the cover of the thermostat by gently pulling near one of the corners at
the top of the thermostat.
3. Press the CONFIG button for 1 second while the McQuay thermostat is in OFF
mode.
To exit conguration mode, press the CONFIG switch for 1 second.
Press the up or down button to change settings within each screen.
Down
button
Up
button
Press the right button to advance to the next screen.
Note: Pressing the left button will return you to the previous screen.
Left
button
Right
button
The conguration mode is used to set the McQuay thermostat to match your heating/cooling system. The McQuay
thermostat functions with heat pump, air conditioning, gas, oil or electric heat systems.
To congure the McQuay thermostat, perform the following steps:
S1 S2 Y W
O/B
G RC RH C
RESET CONFIG
RC
RH
FP
CONFIG