Heat Pump Systems - Braeburn 7320 Installer's Manual

Heat Pump Systems

Typical Wiring Configurations
NOTE: The "System Type" option will be configured in the Installer Settings section.
1 HEAT / 1 COOL - No Auxiliary Heat
Set System Type to 11HP
Rh 24 Volt AC Power
Rc Connected to Rh with supplied Jumper Wire
O/B Changeover Valve [note 2]
Y1 Compressor Relay
G Fan Relay
C 24 Volt AC Transformer Common [note 1]
2 HEAT / 2 COOL - No Auxiliary Heat
Set System Type to 32HP
Rh 24 Volt AC Power
Rc Connected to Rh with supplied Jumper Wire
O/B Changeover Valve [note 2]
Y1 Compressor 1 Relay (1st stage heating/cooling)
Y2 Compressor 2 Relay (2nd stage heating/cooling)
G
Fan Relay
C 24 Volt AC Transformer Common [note 1]
L Optional System Fault Monitor [note 4]
2 HEAT / 1 COOL - Including Auxiliary Heat
Set System Type to 22HP
Rh 24 Volt AC Power
Rc Connected to Rh with supplied Jumper Wire
O/B Changeover Valve [note 2]
Y1 Compressor Relay (1st stage heating/cooling)
W2 Auxiliary Heat Relay (2nd stage heating) [note 3]
E Emergency Heat Relay [note 3]
G Fan Relay
C 24 Volt AC Transformer Common [note 1]
L Optional System Fault Monitor [note 4]
3 HEAT / 2 COOL – Including Auxiliary Heat
Set System Type to 32HP
Rh
24 Volt AC Power
Rc
Connected to Rh with supplied Jumper Wire
O/B Changeover Valve [note 2]
Y1 Compressor 1 Relay (1st stage heating/cooling)
Y2 Compressor 2 Relay (2nd stage heating/cooling)
AUX Auxiliary Heat Relay (3rd stage heating) [note 3]
E Emergency Heat Relay [note 3]
G
Fan Relay
C 24 Volt AC Transformer Common [note 1]
L Optional System Fault Monitor [note 4]
NOTES - Heat Pump Systems
[1] Optional 24 Volt AC common connection
(required for Wi-Fi).
[2] O (cool active) or B (heat active) is selected in
the Installer Settings menu.
[3] Install a field supplied jumper between the
W2/AUX and W1/E terminals if there is
no separate emergency heat relay installed.
[4] If the L terminal is used, the 24 Volt AC common
must be connected (C terminal).
Provide disconnect and overload protection as required.
5 Installer Guide