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LIA266
McQuay LIA266 User Manual
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6
-C
–
24 V
AC/VDC common
+R
–
24 V
AC/VDC hot
W1
–
1st stage heat
Y1
–
1st stage cool
W2
–
2nd stage heat
Y2
–
2nd stage cooling
G
–
Fan
O
–
Override
-C
O
G
Y2
W2
Y1
W1
+R
ELECTRONIC THERMOST
A
T
W
2
G
W
1
Y
1
F
E
L
U
A
P
V
+
R
-
C
O
McQUAY SINGLE CIRCUIT
Mark IV Board
Low Voltage Terminal Board
T
erminal Designator Descriptions
Wiring Diagrams
Override (Optional)
7
9
Table of Contents
Table of Contents
2
Parts Diagram
3
Specifications
4
Important Safety Information
4
Package Contents/Tools Required
4
To Remove Existing Thermostat
5
To Install Thermostat
5
Remote Sensor Installation (Optional)
7
Terminal Designator Descriptions
8
Wiring Diagrams
8
Configuration Mode
10
Testing the Thermostat
13
Mode of Operation
14
Operating Modes
15
Troubleshooting
16
Factory Default Settings
17
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McQuay LIA266 Specifications
General
Brand
McQuay
Model
LIA266
Category
Thermostat
Language
English
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