When heating, the hot air rises to the top of the room, resulting in the temperature being lower near the floor
where the occupants are. When controlling by body thermostat sensor only, the unit may therefore be turned off
by the thermostat before the lower part of the room reaches the preset temperature. The temperature can be
controlled so the lower part of the room where the occupants are does not become cold by widening the range in
which thermostat sensor in remote controller can be used so that suction temperature is higher than the preset
Ex: When heating
Assuming the preset temperature in the figure above is 75°F, and the suction temperature has changed
from 64°F to 82°F (A → D):
This example also assumes there are several other air conditioners, the VRV system is off, and that temperature
changes even when the thermostat sensor is off.
Body thermostat sensor is used for temperatures from 64°F to 77°F (A → C).
Remote controller thermostat sensor is used for temperatures from 77°F to 82°F (C → D).
And, assuming suction temperature has changed from 82°F to 64°F (D → A):
Remote controller thermostat sensor is used for temperatures from 82°F to 73°F (D → B).
Body thermostat sensor is used for temperatures from 73°F to 64°F (B → A).
Outline of Control (Indoor Unit)