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Heat pump systems – Braeburn 7320 Installer Guide User Manual

Page 5

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5 Installer Guide

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]

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]

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]

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]

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.

Typical Wiring Configurations

NOTE: The “System Type” option will be configured in the Installer Settings section.

Heat Pump Systems