Braeburn 3020 Installer Manual

NOTES - Conventional Systems
[1] Optional 24 Volt AC common connection.
[2] Remove factory installed jumper for dual
transformer systems.
[3] In dual transformer systems, transformer
common must come from cooling transformer.
[4] If needed for system.
Provide disconnect and overload protection
as required.
2 HEAT / 2 COOL Single or Dual transformer
Set System Type to 22CONV (3220 Only)
Rh 24 Volt AC Power (heating transformer) [note 2]
Rc 24 Volt AC Power (cooling transformer) [note 2]
W1 Heat Relay Stage 1
W2 Heat Relay Stage 2
Y1 Compressor Relay Stage 1
Y2 Compressor Relay Stage 2 [note 4]
G Fan Relay
C 24 Volt AC Transformer Common [note 1, 3]
Hydronic Heat Only
Set System Type to 1HD
Rh 24 Volt AC Power (heating transformer)
W1 Zone Valve Power Open
V3 Zone Valve Power Close
G Fan Relay [note 4]
C 24 Volt AC Transformer Common [note 1]
Hydronic Heat / 1 Cool
Set System Type to 11HD
Rh 24 Volt AC Power (heating transformer) [note 2]
Rc 24 Volt AC Power (cooling transformer) [note 2]
W1 Zone Valve Power Open
V3 Zone Valve Power Close
Y1 Compressor Relay
G Fan Relay (cooling fan only)
C 24 Volt AC Transformer Common [note 1, 3]
Installer Manual 4
Heat Only or Millivolt
Set System Type to 11CONV
Rh Power Connection
W1 Heat Relay
G Fan Relay [note 4]
C 24 Volt AC Transformer Common
[note 1]
1 HEAT / 1 COOL Single or Dual Transformer
Set System Type to 11CONV
Rh 24 Volt AC Power (heating transformer) [note 2]
Rc 24 Volt AC Power (cooling transformer) [note 2]
W1 Heat Relay
Y1 Compressor Relay
G Fan Relay
C 24 Volt AC Transformer Common [note 1, 3]
Typical Wiring Configurations
NOTE: The “System Type” option will be configured in the Installer Settings section. Shaded areas do not
apply to the 3020.
Conventional Systems

Braeburn 3020 Specifications

General

Brand	Braeburn
Model	3020
Category	Thermostat
Language	English