Thermostat Sensor In Remote Controller - Daikin 2MXS-N Series Service Manual

Function of FFQ Series
2.2

Thermostat Sensor in Remote Controller

Outline 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 set 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 set temperature.
°F °C
89.6 32
86.0 30
82.4 28
78.8 26
75.2 24
71.6 22
68.0 20
64.4 18
60.8 16
12
53.6
(This example also assumes there are several other air conditioners, and the suction temperature
changes even when the thermostat sensor is off.)
18 → 23°C (64.4 → 73.4°F) (A → C): Body thermostat sensor is used.
23 → 27°C (73.4 → 80.6°F) (C → E): Remote controller thermostat sensor is used.
27 → 30°C (80.6 → 86°F) (E → F): Body thermostat sensor is used.
30 → 25°C (86 → 77°F) (F → D): Body thermostat sensor is used.
25 → 21°C (77 → 69.8°F) (D → B): Remote controller thermostat sensor is used.
21 → 18°C (69.8 → 64.4°F) (B → A): Body thermostat sensor is used.
56
TH1 = Ts – 3 (°C)
TH1 = Ts – 5.4 (°F)
14 16 18
57.2 60.8 64.4
Range in which thermostat sensor
in remote controller can be used
Assuming the set temperature in the figure above is 24°C (75.2°F), and the suction
temperature has changed from 18°C (64.4°F) to 30°C (86°F) (A → F):
Assuming suction temperature has changed from 30°C (86°F) to 18°C (64.4°F) (F → A):
TH1 = Ts – 1 (°C)
TH1 = Ts – 1.8 (°F)
20 22 24 26
68.0 71.6 75.2 78.8
Range in which body
thermostat sensor can
be used
SiUS121502E
TH1 = Ts + 1 (°C)
TH1 = Ts + 1.8 (°F)
TH1 = Ts + 3 (°C)
TH1 = Ts + 5.4 (°F)
28 30 32 34
82.4 86.0 89.6 93.2
Suction temperature (TH1)
Differential
Function and Control
°C
°F
(R18811)