HEATING
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Part
Number
Description
Heat Pump
Compatibility
Power Source(s)
Dimensions
Display
Control Features
Terminals
RS9423T
Dual Fuel Compatible
Wall Thermostat –
5-1-1 and 7-Day
Programmable, 4 Heat
(Heat Pump), 2 Cool
(No Heat Pump)
With or Without Aux/
Emergency Heat
24V Hardwire
(C Terminal)
DC 2 x AAA 1.5V
Alkaline Batteries
(Included)
4.7" W x 3.8" H x 1" D
8.8 sq. Inch Blue Backlit
Touchscreen
Dual Fuel Compatible
Wireless Balance Point
for Heat Pumps
Compatible With
RS9055OUT Remote
Sensor
Adjustable Differential
Auto Changeover
Adjustable Setpoint
Limits
Short Cycling Prevention
Filter Change Reminder
Keypad Lockout
Rc, Rh, C,
B, O, G,
W/E, Y, Y2,
W2
RS10420T
WiFi/Smartphone
Accessible Wall
Thermostat – 7-Day
Programmable, 4 Heat
(Heat Pump), 2 Cool
(No Heat Pump)
With or Without Aux/
Emergency Heat
24V Hardwire
(C Terminal)
4.7" W x 3.8" H x 1" D
8.8 sq. Inch Blue Backlit
Touchscreen
WiFi/Smartphone
Accessible
Adjustable Differential
Auto Changeover
Adjustable Setpoint
Limits
Short Cycling Prevention
Rh, Rc,
C, Y,
Y2, W/E,
W2,
G, O, B
RS10421T
WiFi/Smartphone
Accessible Wall
Thermostat with
Humidifi cation/
Dehumidifi cation
Control – 7-Day
Programmable, 4 Heat
(Heat Pump), 2 Cool
(No Heat Pump)
With or Without Aux/
Emergency Heat
24V Hardwire
(C Terminal)
4.7" W x 3.8" H x 1" D
8.8 sq. Inch Blue Backlit
Touchscreen
WiFi/Smartphone
Accessible
Humidifi cation/Dehu-
midifi cation Control
Compatible With
RS9055OUT Remote
Sensor
Adjustable Differential
Auto Changeover
Adjustable Setpoint
Limits
Short Cycling Prevention
Rh, Rc,
C, Y,
Y2, W/E,
W2,
G, O, B,
H, D
WALL THERMOSTAT ACCESSORIES
Part Number
Description
Compatible Thermostats
Power Source(s)
Features
RS9055OUT
Wireless Outdoor
Temperature Sensor
RS9423T, RS10421T
Battery Powered
Senses Outdoor Temperatures
Use for Dual Fuel Heat Pump Balance Point
Applications
Durable Weatherproof Design
RS9010-2
Wall Plate
All Pro-Series Thermostats
NA
Bright White Color