DCN: 140-02121-02
Page 8
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
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
Standard Gas/Electric HVAC System Wiring
Thermostat Setup:
Standard Gas/Electric HVAC Systems
To set the HVAC system type, go to the
SYSTEM
menu.
1.
SYSTYPE
Set the HVAC System Type: set to
S
(Standard)
2.
FANTYPE
Set the HVAC Fan Type:
Set to
G
(Gas) for typical gas furnace (fan is controlled by the furnace)
Set to
E
(Elec) for electric heat (fan call with heat call)
3.
CO
Not used for standard systems. Ignore this setting.
Go to ADVANCED SYSTEMS SETTINGS to set the following:
4.
AUX HT
Not used for standard systems. Ignore this setting
5.
2ND
HT
Enable second stage heating outputs
If a single stage heating system, leave this set to
N
If a 2 stage heating system, set to
Y
to enable.
6.
2ND CO
Enable second stage cooling outputs
If a single stage cooling system, leave this set to
N
.
If a two stage cooling system, set to
Y
to enable.
Default Setup:
Standard HVAC
Fan: Gas Heat
1 Stage heating
1 Stage cooling
No setup required for this
configuration
Thermostat back
Y2
Y1
G
RC
C
RH
W1
W2
/O
Typical thermostat wiring colors.
Caution: verify that original wiring
matches. Colors may be different.
Blue
Black/Brown
Red
White
Orange
Yellow
Green
C wire is not required
for battery operation.
Must be connected
for 24VAC operation.
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