43
■
Cooling
●
Thermo. ON : When the room temperature rises above T + 4°F (T°F is set temperature).
Compressor
➞
ON
●
Thermo. OFF : When the room temperature falls below set temperature T°F.
Compressor
➞
OFF
■
Heating
●
Heater ON : When the room temperature falls below T – 4°F (T°F is set temperature).
Heater
➞
ON
●
Heater OFF : When the room temperature rises above set temperature T°F.
Heater
➞
OFF
T °F
T–4 °F
set temp.
Heater
Fan motor
ONON
Set speed
Room temp.
OFF OFF
ON
ON
T °F
T+4 °F
set temp.
Compressor
Fan motor
Set speed
Room temp.
OFFOFF OFF
Cooling & Electric Heating Model
Models STB0811C1 STB1023C1 STB1123C1