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INSTALLATION
CONVENTIONAL HEAT/COOL WIRING DIAGRAMS
SINGLE TRANSFORMER (USE JUMPER WIRE)
RSB RSA
I2
C
I1
O/B
Y
Y2
G
RC R W2
W
L
S2
HEAT PUMP WIRING DIAGRAMS
SINGLE TRANSFORMER (USE JUMPER WIRE)
RSB RSA
I2
C
I1
O/B
Y
Y2
G
RC R W2
W
L
S2
6
TWO TRANSFORMERS (REMOVE JUMPER WIRE)
S1 T1 T2
RSB RSA
I2
C
I1
O/B
Y
Y2
G
RC R W2
90-2078
TWO TRANSFORMERS (REMOVE JUMPER WIRE)
S1 T1 T2
RSB RSA
I2
C
I1
O/B
Y
Y2
G
RC R W2
90-2079
INSTALLATION
INDOOR AIR QUALITY EQUIPMENT WIRING DIAGRAMS
DEHUMIDIFIER WIRING
W
L
S2
S1 T1 T2
RSB RSA
I2
C
I1
90-2078
VENTILATION WIRING
RSB RSA
I2
C
I1
W
L
S2
S1 T1 T2
90-2079
SUPPORT MODULE WIRING DIAGRAM
MODEL 8081 OR 8082
SUPPORT MODULE
RC
C
RSB
RSB RSA
I2
C
I1
HUMIDIFIER WIRING
O/B
Y
Y2
G
RC R W2
W
L
S2
S1 T1 T2
RSB RSA
90-2080
Note: The I1/I2 output is a dry contact closure .
The humidifier wiring diagram assumes the control is
powering a solenoid valve . The dehumidifier wiring
diagram is for a normally open dry contact input .
The ventilation diagram assumes the control is for
a normally closed damper . Refer to the individual
humidifier, dehumidifier or ventilation installation
instructions for product specific wiring details .
O/B
Y
Y2
G
RC R W2
W
L
S2
S1 T1 T2
90-2080
Note: Up to four Support Modules can be wired to the
thermostat . Support Modules should be wired with
CAT-5 wire . The total length of wire for all support
RSA
T1
T2
T3
T4
modules should not exceed 1000 feet .
O/B
Y
Y2
G
RC R W2
W
L
S2
S1 T1 T2
90-2080
I2
C
I1
O/B
Y
Y2
G
RC R W2
W
L
S2
S1 T1 T2
90-2080
7
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