Product Overview

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LIS145-1
All features and specifications subject to change without notice.
HEAT/COOL DRYOUT THERMOSTAT
& LOW AMBIENT CUTOFF SWITCH
ICM
SC045-SC075
The SC045 to SC075 series thermostats are low-
cost, single setpoint thermostats intended for use
as temporary devices to provide heating or cooling
to allow drywall to dry during construction. They
also can be used as a low ambient cutoff switch.
Wiring Diagram for
Heating/Cooling Thermostat
Wiring Diagram for
Low Ambient Cutoff
Outdoor Fan Motor or
Compressor Contactor
24 VAC
C
R
Heating/Cooling
Contactor
24 VAC
C
R
Fan
Contactor
DRYOUT THERMOSTATS
Part Number SC045 SC055 SC060 SC065 SC070 SC075
Temperature Range*
45
°
F ±5
°
55
°
F ±5
°
60
°
F ±5
°
65
°
F ±5
°
70
°
F ±5
°
75
°
F ±5
°
2-Wire
Heat
Cool
*
Consult factory for other setpoints
Mode of Operation
Heat/Cool Thermostat
The heating models will close when the ambient temperature drops below the respective setpoint and open when the
ambient temperature is above the respective setpoint. The cooling models will close when the ambient temperature is
above the respective setpoint and open when the ambient temperature drops below the respective setpoint.
Low Ambient Cutoff: Condenser Fan Motor
The SC045 and SC055 models can be used as a low ambient cutoff switch for a condensor fan motor. When the ambient
temperature drops below the setpoint, the unit will open the fan signal and turn the fan motor off. It will not allow the
fan to turn back on until the temperature rises above the setpoint.
Low Ambient Cutoff: Compressor
The SC045 and SC055 models can also be used as a low ambient cutoff switch for the compressor when wired in
series with the Y circuit from the thermostat. When using with the compressor circuit, an anti-short cycle timer is
recommended to prevent possible damage to the compressor from short cycling.
Features
• Two-wire installation
• Six fixed setpoint models to choose from: 45
o
F to 75
o
F
• Temporary use for dryout applications
• Can be used as a low ambient cutoff switch
Specifications
Input: 18-30 VAC
Output: 2 amp maximum
Temperature Control Range: 45
°
F to 75
°
F (±5
°
F)