Thermostat Sensor In Remote Control - Daikin VRVIII-S Service Manual

Outline of Control (Indoor Unit)
6.3

Thermostat Sensor in remote control

Temperature is controlled by both the thermostat sensor in remote control and air suction
thermostat in the indoor unit. (This is however limited to when the field setting for the thermostat
sensor in remote control 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 control near the position of the user when the suction temperature is near the preset
temperature.
°C
32
Preset Temperature (Ts)
30
28
26
24
22
20
18
16
12 14
Range in which thermostat sensor
in remote control can be used
! 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 control 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 control 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).
60
TH1 = Ts -3
A B
16 18 20 22
TH1 = Ts – 1
C D E
24 26 28
Range in which body thermostat
sensor can be used
SiENBE34-703
TH1 = Ts + 1
TH1 = Ts + 3
F
30 32 34
Suction temperature (TH1)
Differential
°C
(VG003)
Function