2 Copyright © 2016 Broan-NuTone LLC
Typical Wiring for Standard Gas/Electric HVAC System
THERMOSTAT CONNECTION
C 24VAC COMMON
R 24VAC RETURN
W1 HEAT STAGE 1
W2 HEAT STAGE 2
G FAN
Y1 COMPRESSOR STAGE 1
Y2 COMPRESSOR STAGE 2
TYPICAL THERMOSTAT WIRING COLORS.
CAUTION: VERIFY THAT ORIGINAL WIRING
MATCHES. COLORS MAY BE DIFFERENT
STANDARD HVAC SYSTEM
BLUE
RED
WHITE
ORANGE
GREEN
YELLOW
BLACK/BROWN
THERMOSTAT BACK PANEL
INTERNAL RC=RH JUMPER
C WIRE IS NOT REQUIRED
FOR BATTERY OPERATION
C WIRE IS REQUIRED FOR
24VAC OPERATION
DEFAULT THERMOSTAT SETUP:
TYPE: STANDARD HVAC
FAN: GAS HEAT
1 STAGE HEATING
1 STAGE COOLING
NO SETUP CHANGE REQUIRED
FOR THIS CONFIGURATION
Y2
Y1 GRC C
RH W1
W2
FOR SINGLE
TRANSFORMER SYSTEMS
CONNECT R WIRE TO
EITHER RC OR RH
TERMINAL
FOR SYSTEMS WITH SEPARATE
HEATING AND COOLING
TRANSFORMERS, CONNECT
HEATING R TO RH AND COOLING
R TO RC. NOTE! THE RC-RH
JUMPER MUST BE CUT
ON THE THERMOSTAT BOARD.
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