Johnson Controls Hx 3 S1-THXU430W Installation Manual page 75

5407934-UIM-C-1119
THERMOSTAT
2-Stage HP Heat AND Cool
2-Stage Gas Heat
Tstat controls FFUEL & LTCO
OD Sensor
Req'd for use
of fossil fuel
operation
24 VAC
Outputs
THERMOSTAT
Single Stage HP Heat AND Cool
2-Stage Aux Heat
24 VAC
Outputs
If using thermostat dual fuel logic select HP.
Select REMOTE SENSOR - OUTDOOR in the thermostat service menu.
Johnson Controls Ducted Systems
DUAL FUEL SYSTEMS
(Furnace and Heat Pump continued)
R
C
G
W1
W2
Y1
Y2
O/B
AIR HANDLER/HEAT PUMP SYSTEMS
R
C
G
W1
W2
Y1
Y2
O/B
INDOOR
2-Stage Furnace
R
C
G
W1
W2
Y1
Y/Y2
O
INDOOR
Single Stage Air Handler
2-Stage Aux Heat
R
C
G
W1
W2
Y/Y2
OUTDOOR
2-Stage HP
FFuel Jumper = OFF
LTCO Jumper = ON
R
C
W
W1 out
W2 out
Y1
Y2
Y2 out
O
OUTDOOR
Single Stage HP
R
C
W
W1 out
Y
O
A1241-001
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