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Y8150 FRESH AIR VENTILATION SYSTEM, W8150 FRESH AIR VENTILATION CONTROL
68-0282—07 10
WIRING DIAGRAMS
Consult thermostat Installation Instructions for alternate
terminal designations.
Fig. 1. Single transformer, conventional system.
Fig. 2. Dual transformer, conventional system.
Fig. 3. Multi-stage conventional system.
Fig. 4. Wiring heat pump without emergency heat.
Wake
Room
System
Fan
Heat
Auto
AM
DST
Tue
RCWYG
RR
C
WYG
M19994A
G
F
R
C
C
C
C
H
W
G
T
W8150A
HVAC
Wake
Room
System
Fan
Heat
Auto
AM
DST
Tue
WR
HVAC
COOLINGHEATING
RC CYG
RR
C
WYG
M19995A
G
F
R
C
C
C
C
H
W
G
T
NOTE:
REMOVE FACTORY
INSTALLED JUMPER
BETWEEN C
C AND CH
ON W8150.
W8150A
Wake
Room
System
Fan
Heat
Auto
AM
DST
Tue
W
1
CRW
2
Y
1
Y
2
G
W
1
CR
C
RW
2
Y
1
Y
2
G
M19996
G
F
R
C
C
C
C
H
W
G
T
HVAC
W8150A
Wake
Room
System
Fan
Heat
Auto
AM
DST
Tue
RCYGO
R
C
R W Y G O/B
M19997A
G
F
R
C
C
C
C
H
W
G
T
HVAC
W8150A