When temperature is higher than set temperature, the motor rotates faster to lower room temperature.
B. Motor rotation speed is adjusted to maintain a constant temperature.
C. Motor rotates when temperature is higher than set temperature.
D. When temperature approaches set temperature, the motor rotation speed is reduced.
E. Motor stops when temperature is lower than set temperature.
F. Variation width for temperature becomes large when temperature is adjusted by repeatedly starting and stopping the motor. Furthermore, the motor always rotates at constant speed, and energy consumption increases from the energy loss of starting and stopping.
G. Lowering motor rotation speed according to load reduces both variation width for temperature and energy consumption