McQuay LIA266 User Manual

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3. Temperature Scale (F or C) – Choose Fahrenheit or Celsius.
Press the or button to select.
Press the SW6 button to advance to the next screen.
The configuration mode is used to set the McQuay Auto-changeover Electronic Thermostat to match your heating/cooling
system. To configure the McQuay Auto-changeover Electronic Thermostat , perform the following steps:
1. Remove the cover of the thermostat by gently pulling on one of the corners.
2. S imultaneously hold the SW5 and SW6 buttons in for 5 seconds while the McQuay Auto-changeover Electronic Thermostat
is in OFF mode.
3. Press the or button to change settings within each screen.
4. Press the SW6 button to advance to the next screen.
Note: The SW5 button will return you to the previous screen.
5. To exit configuration mode, slide the Mode switch to Heat or Cool.
2. Heat Source – Set to “g”.
Press the or button to set to “g”.
Press the SW6 button to advance to the next screen.
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Conguration Mode
Configuration Mode Settings
The setup screens for Configuration Mode are as follows:
1. Heat Pump and Non Heat Pump – Press the or button to
configure as heat pump, or non-heat pump system. Set to “O” for
all McQuay WSHP, PTAC, PTHP and UV units.
Press the SW6 button to advance to the next screen.

McQuay LIA266 Specifications

General

Brand	McQuay
Model	LIA266
Category	Thermostat
Language	English