Braeburn 3220 Installer Guide - Manual (Page 6)

Installer Guide 6
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)
E/W3 Auxiliary Heat Relay (3rd stage heating) [note 5]
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.
[2] O (cool active) or B (heat active) is selected in
the Installer Settings menu.
[3] Install a field supplied jumper between the
W2 and W1/E/W3 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).
[5] If a separate emergency heat relay is installed, the
W1/E/W3 terminal should have both the auxiliary
heat 1 relay and emergency heat relay connected.
Provide disconnect and overload protection as required.
Typical Wiring Configurations
NOTE: The “System Type” option will be configured in the Installer Settings section. The 3020 is a single
stage thermostat and not intended for multi stage equipment.
Heat Pump Systems
NOTE: Additional options are configured in the
Installer Settings section.
S1
S2
NOTES - Additional Wiring Options
[1] These terminals can be used to connect a
Braeburn ® indoor or outdoor remote sensor.
Additional Wiring Options
Indoor or Outdoor Remote Sensor [note 1]