Service manual

Residential Tranquility
®
27 Split (TTS) - 60Hz HFC-410A
Rev.: 8 May, 2014C
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Y
O
G
R
C
Y
O
G
R
C
W1
W2
W
E
Typical
Air Handler
Typical
T-stat
CXM Board
(Compressor
Section)
O
Y/Y2
G
R
C
L
AL1
Optional
Jumper
Y
O
G
R
C
Y1
O
G
R
C
W1
W2
W
E
Typical
Air Handler
Typical
T-stat
CXM Board
(Compressor
Section)
O
G
R
C
L
AL1
Y2
Y1
Y/Y2
From Compressor
Solenoid Valve
Figure 28b: Typical Thermostat Wiring, Single-Stage
Units (2 Heat/1 Cool)
Figure 28c: Typical Thermostat Wiring, Two-Stage Units
(3 Heat/2 Cool)
Electrical - Low Voltage Wiring