INSTALLER'S GUIDE ADDENDUM
Field wiring
Yellow
Blue
SPDT Relay
w/24 VAC Coil
NO
NC
Red
Yellow
Orange
Blue
B
W
G
Y1
Y2
Y1
R
O
O
O
R
B
B
YI
W1
YO
YO
Y2
BK
G
W2
W3
(In)
(Out)
Green
Comfort Control *
Series 7 Air Handler
Air Conditioner
Single Stage Cooling
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
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.
Shown in de-energized position
Hydronic
Control
Typical Boiler
Wiring
B
T
T
Heat Pump
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 Heat Pump
Comfort Control
X2
W
18-GJ21D1-1A_Addendum
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.
G
Y1
O
R
B
Y2
White
Green
Yellow
Orange
Red
Blue
Series 7 Air Handler
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
W3
W2
W1
W1 - White
BK
G
Y2
(In)
YI
O
R
B
(Out)
YO
O - Orange
R - Red
B - Blue
Y1 - Yellow
Black
Orange
(X2)
Red
W
Blue
Typical Boiler
Wiring
B
Yellow
Hydronic
Control
T
T
Page 1
INSTALLER'S GUIDE ADDENDUM
Comfort Control *
Series 7 Air Handler
Air Conditioner
Two Stage Cooling
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
Field wiring
Yellow/Black
Blue
Red
Yellow
Green
Brown
Orange
Blue
B
W
G
Y1
Y2
R
O
O
R
B
YI
W1
YO
Y2
BK
G
W2
W3
(In)
SPDT Relay
w/24 VAC Coil
NO
NC
Y1
O
B
YO
(Out)
Shown in de-energized position
Yellow
/Red
Brown
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.
Hydronic
Control
Typical Boiler
Wiring
B
T
T
Heat Pump
Two Stage Heat Pump
Comfort Control
X2
W
G
Y1
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.
Page 2
O
R
B
Y2
White
Green
Brown
Yellow
Orange
Red
Blue
Series 7 Air Handler
W3
W2
W1
BK
G
Y2
YI
O
R
B
YO
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
W1 - White
Y2 - Brown
(In)
O - Orange
R - Red
(Out)
B - Blue
Y1 - Yellow
Black
(X2)
Yellow/Red
Orange
Red
W
Blue
Typical Boiler
Wiring
B
Hydronic
Control
T
T
Yellow
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