Trane A5AHC002A1B30A - Field Wiring Diagrams

18-GF81D1-1A-EN
17
Field Wiring Diagrams
Single Stage, Cooling Only
Thermostat Air Handler
Outdoor
R
G
B
W1
W2
B
Y
R
G
B
Y
W1
Blue
24 VAC HOT
FAN
24 VAC
Common
COOLING
1st STAGE
HEATING
1st STAGE
HEATING
2nd STAGE
White
White
W2
Y1
Y2
Y0
YL/BLK
YL/BLK
Y0
YL/BLK
(3)
(3)
(3)
(3)
Single Stage, HP
Thermostat Air Handler
Outdoor
R
G
B
R
B
O
Y
X2
R
G
B
O
Y
W1
Blue
24 VAC HOT
FAN
24 VAC
Common
SOV
COOL/HEAT
1st STAGE
AUX/EMERGENCY
HEAT 1st STAGE
AUX/EMERGENCY
HEAT 2nd STAGE
Black
W2
Y1
Y2
Y0
W1
W2
Pink
White
2 Stage Indoor Airflow, Cooling Only
Thermostat Air Handler
Outdoor
R
G
B
W1
W2
B
Y
R
G
B
Y1
W1
Blue
24 VAC HOT
FAN
24 VAC
Common
COOLING
1st STAGE
COOLING
2nd STAGE
HEATING
1st STAGE
HEATING
2nd STAGE
White
White
W2
Y1
Y2Y2
2 Stage Indoor Airflow, HP
Thermostat Air Handler
Outdoor
R
G
B
W1
W2
R
B
O
Y
X2
R
G
B
O
Y1
W1
Blue
24 VAC HOT
FAN
24 VAC
Common
SOV
COOL/HEAT
1st STAGE
COOL/HEAT
2nd STAGE
HEATING
2nd STAGE
EMERGENCY
HEAT
White
Black
White
W2
Y1
Y2
Optional
Y2
Optional
YL/BLK
Y0
Notes:
1. Units with pigtails require wirenuts for connections.
2. Cap all unused wires.
3. In AC systems for multiple stages of electric heat, jumper W1 and W2 together if comfort control has only one stage of heat.