Thermostat Control - Daikin FTXS30LVJU Service Manual

Main Functions
1.7

Thermostat Control

Thermostat control is based on the difference between the room thermistor temperature and the
target temperature.
Thermostat OFF Condition
 The temperature difference is in the zone A.
Thermostat ON Condition
 The temperature difference returns to the zone C after being in the zone A.
 The system resumes from defrost control in any zones except A.
 The operation turns on in any zones except A.
 The monitoring time has passed while the temperature difference is in the zone B.
<Cooling / Dry>
FTXS series
FDXS series
<Heating>
Refer to "Temperature Control" on page 28 for detail.
35
(Cooling / Dry: 10 minutes, Heating: 10 seconds)
C
–1.5˚C (–2.7˚F)
B
A
C
–1.5˚C (–2.7˚F)
B
A
OFF OFF
A A
B B
1.5˚C (2.7˚F)
C C
Room thermistor temperature – target temperature
ON
Cooling : –0.5˚C (–0.9˚F)
Dry : –0.5˚C (–0.9˚F)
Cooling : –2.0˚C (–3.6˚F)
Dry : –2.5 ~ –2.0˚C (–4.5 ~ –3.6˚F)
OFF
Room thermistor temperature – target temperature
ON
Cooling : –1.0˚C (–1.8˚F)
Dry : –1.0˚C (–1.8˚F)
Cooling : –2.0˚C (–3.6˚F)
Dry : –2.5 ~ –2.0˚C (–4.5 ~ –3.6˚F)
OFF
Room thermistor temperature – target temperature
2.0˚C (3.6˚F)
0.5˚C (0.9˚F)
ON ON
SiUS091133
(R14452)
(R16693)
(R14451)
Function and Control