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
R C W Y G
R R
C
W Y G
M19994A
G
F
R
C
C
C
C
H
W
G
T
W8150A
HVAC
Wake
Room
System
Fan
Heat
Auto
AM
DST
Tue
W
R
HVAC
COOLING
HEATING
R C
C
Y G
R R
C
W Y G
M19995A
G
F
R
C
C
C
C
H
W
G
T
NOTE:
REMOVE FACTORY
INSTALLED JUMPER
BETWEEN C
C
AND C
H
ON W8150.
W8150A
Wake
Room
System
Fan
Heat
Auto
AM
DST
Tue
W
1
C
R
W
2
Y
1
Y
2
G
W
1
C
R
C
R
W
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
R C
Y G O
R
C
R
W Y G O/B
M19997A
G
F
R
C
C
C
C
H
W
G
T
HVAC
W8150A
