
Page 13Wiring
Standard Gas/Electric HVAC System Wiring
To set the HVAC system type, go to the Thermostat Info screen and press Setup button.
• Type - Set the HVAC System Type: set to Gas/Elec
• Fan Type - Set the HVAC Fan Type: Set to Gas for typical gas furnance (fan is controlled by the furnance) or set to
Elec for electrical heat (fan call with heat)
• C/O type - Not used for standard systems. Ignore this setting.
• 2nd Stage Heat - Enable second stage heating outputs. If you have a single stage heating system, leave this set to
N. If you have a 2 stage heating system, set to Y to enable.
• Aux Heat (HP) - Not used for standard systems. Ignore this setting.
• 2nd Stage Cool - Enable second stage cooling outputs. If you have a single stage cooling system, leave this set to
N. If you have a two stage cooling system, set to Y to enable.
Setup
Standard HVAC System
G Fan
W1 Heat Stage 1
Y1 Compressor Stage 1
R 24VAC Return
C 24VAC Common
Thermostat Connection
Y2 Compressor Stage 2
W2 Heat Stage 2
Optional 24R Connection for single transformer HVAC Systems
RC and RH are jumpered together on thermostat board.
Cut RC/RH jumper JP1 for separate heating & cooling transformers
Y1
G
Y2
RS2
RS2
RSC
HC
24RC
W1
24RH
W2/O
RS1
RS1
RSC
H1
24C
Cooling 24V
Fan
Cooling stage 1
Cooling stage 2
Remote Sensor 2
Remote Sensor 2
Sensor shield
Humidity Relay Com
24VAC Com
24V Heating
Heating stage 1
Heating stage 2
Remote Sensor 1
Remote Sensor 1
Sensor shield
Humidity Relay
Remote Outside Sensor
Remote Indoor Sensor
Shielded cable Shielded cable
Humidifier/Dehumidifier
Contact
Closure
Input
Thermostat Back
Default Setup:
• Gas/Elec
• Gas Heat
• 1 Stage Heating
• 1 Stage Cooling
No setup required for
this conguration.
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