Trane 7 Series Installer's Manual Addendum

Field Wiring Diagrams for Hydronic Coil with Series 7 Air Handlers
Notes:
1. For Family 7 air handlers, a relay and Heat Pump thermostat are required for cooling only application. For Heat Pump OD applications the relay is not required.
2. For Heat Pump systems, the hydronic coil is designed for Supplemental Heat. It is not designed for Emergency Heat.
Single Stage Cooling
Field wiring
Comfort Control *
W
G
Y1
O
R
B
Y2
Notes:
* Heat Pump thermostat is required. Must be set in Heat Pump configuration.
1. It is recommend to use the enhanced mode blower delay profile. See the
Installer's Guide for S2-3 and S2-4 settings.
2. Wiring must be made as shown for proper operation.
Single Stage Heat Pump
Comfort Control
X2
W
G
Y1
O
R
B
Y2
Field wiring
Notes:
1. Emergency heat mode only delivers 50% airflow.
2. Hydronic heat is designed for supplemental heat during
compressor operation.
3. It is recommend to use the enhanced mode blower delay
profile. See the Installer's Guide for S2-3 and S2-4 settings.
4. Wiring must be made as shown for proper operation.
18-GJ21D1-1A_Addendum
Series 7 Air Handler
W3
W2
W1
BK
Green
G
Y2
Yellow
YI (In)
Orange
O
Red R
Blue
B
(Out)
YO
Series 7 Air Handler
W3
W2
White
W1
BK
Green
G
Y2
Yellow
(In)
YI
Orange
O
Red
R
Blue
B
YO (Out)
INSTALLER'S GUIDE ADDENDUM
Air Conditioner
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
Blue
SPDT Relay
w/24 VAC Coil
Y1
YO
NO
NC
O
B
Shown in de-energized position
Heat Pump
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
Black
(X2)
Orange
W1 - White
Red
O - Orange
R - Red
B - Blue
Y1 - Yellow
Yellow
Typical Boiler Hydronic
Wiring
B
Blue
Yellow
Typical Boiler Hydronic
Wiring
Control
T
T
W
B
Control
T
T
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