Connect your wires, Conventional systems – Braeburn 1200NC User Manual
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3
Terminal Function Description
Rc*
Input
24 Volt AC Cooling Transformer
(Dual Transformer Systems Only)
Rh*
Input
Power Connection (24 Volt AC Heating
Transformer or Millivolt Power Source)
O
Output
Reversing Valve (Cool Active)
B
Output
Reversing Valve (Heat Active)
Y
Output
1st Stage Compressor (appears as
Y1 on 1200NC)
G
Output
Fan Control
W
Output
1st Stage Conventional Heat
C
Input
24 Volt AC Transformer Common
Connect Your Wires
3
Wiring Terminations
Terminal Function Description
W1/E
Output
(W1) 1st Stage Conventional Heat
(E) Emergency Heat Relay
W2
Output
2nd Stage Heat / Auxiliary Heat
Additional Terminations (1200NC only)
Heat Only or Millivolt
Set Installer Switch to NORM
Rh* Power Connection
W Heat Relay (appears as W1/E on 1200NC)
G Fan Relay [note 4]
C 24 Volt AC Transformer Common [note 1]
1 HEAT / 1 COOL Single or Dual Transformer
Set Installer Switch to NORM
Rh* 24 Volt AC Power (heating transformer) [note 2]
Rc* 24 Volt AC Power (cooling transformer) [note 2]
W Heat Relay (appears as W1/E on 1200NC)
Y Compressor Relay (appears as Y1 on 1200NC)
G Fan Relay
C 24 Volt AC Transformer Common [note 1, 3]
Typical Wiring Configurations
NOTE: The “Installer Switch” option will be configured in the next step.
Conventional Systems
*Appears as R on 1200NC (single transformer)