DCN: 140-01773-03
Page 2
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
Standard Gas/Electric HVAC System Wiring
Thermostat Setup:
Standard Gas/Electric HVAC Systems
To set the HVAC system type, go to the
Thermostat Info
screen
and press
Setup
button
1.
Type.
Set the HVAC System Type: set to
Gas/Elec
2.
Fan Type
. Set the HVAC Fan Type:
Set to
Gas
for typical gas furnace (fan is controlled by the furnace)
Set to
Elec
for electric heat (fan call with heat call)
3.
C/O type
. Not used for standard systems. Ignore this setting.
4.
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.
5.
Aux Heat (HP).
Not used for standard systems. Ignore this setting
6.
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.
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 Sensor 2
Indoor or Outdoor type
Remote Sensor 1
Indoor type
Shielded cable
Shielded cable
* Not used on this version
See Humidity enabled Product TZB45H
Default Setup:
Gas/Elec
Gas Heat
1 Stage heating
1 Stage cooling
No setup required for
this configuration
Thermostat back
*
*