Mode of Operation
The SC4811 is an auto changeover, 2-stage heat, 2-stage cool thermostat . It functions with air
conditioning, heat pumps, gas, oil or electric heat systems . An outdoor sensor can be used to monitor
the outdoor temperature .
The thermostat activates the heating appliance when the room temperature is below the set heat
temperature (by the differential temperature) and the red indicator light (configurable) on the
thermostat will light . The SC4811 will stop outputting and the red light will turn off when the call for
heat has been satisfied . With heat pumps, the thermostat will not let the compressor come on for 4
minutes after it turns off . This protects your compressor .
When the room temperature is greater than the set cool temperature (by the differential temperature),
the cooling device is activated and the green indicator light (configurable) on the thermostat will turn
on . The SC4811 will stop outputting and the green light will turn off when the call for cooling is satisfied .
The thermostat will not let the compressor come on for 4 minutes after it turns off . This protects your
compressor .
The SC4811 has four possible operating modes:
OFF
,
Heat
,
Cool
, and
Heat & Cool
mode . In off mode,
the thermostat will not turn on heating or cooling devices . The manual fan can be turned on in all
operating modes using the fan button . In heat mode, the thermostat controls the heating system .
In the cool mode, the thermostat controls the cooling system . In heat & cool mode, the thermostat
controls both the heating and cooling systems . The clock display alternates with the set temperature
display for heat & cool mode .
The SC4811 also has a button lockout feature . This enables the thermostat to be set to the proper
mode and temperature and locked so it cannot be tampered with .
