Daikin FXYBP20K7V1, Service Manual

Page: 83 / 193

Outline of Control (Indoor Unit) SiE 00-07
72 Function R-407C PLUS Series
4.3 Thermostat Sensor in Remote Controller
Temperature is controlled by both the thermostat sensor in remote controller and air suction thermostat in
the indoor unit. (This is however limited to when the field setting for the thermostat sensor in remote
controller is set to “Use.” )
Cooling
If there is a significant difference in the preset temperature and the suction temperature, fine adjustment
control is carried out using a body thermostat sensor, or using the sensor in the remote controller near the
position of the user when the suction temperature is near the preset temperature.
Ex: When cooling
Assuming the preset temperature in the figure above is 24˚C, and the suction temperature has
changed from 18˚C to 30˚C (A
→
F):
(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 18˚C to 23˚C (A
→
C).
Remote controller thermostat sensor is used for temperatures from 23˚C to 27˚C (C
→
E).
Body thermostat sensor is used for temperatures from 27˚C to 30˚C (E
→
F).
And, assuming suction temperature has changed from 30˚C to 18˚C (F
→
A):
Body thermostat sensor is used for temperatures from 30˚C to 25˚C (F
→
D).
Remote controller thermostat sensor is used for temperatures from 25˚C to 21˚C (D
→
B).
Body thermostat sensor is used for temperatures from 21˚C to 18˚C (B
→
A).