Thermostat Control - Daikin K-Series Service Manual

SiBE061121.book Page 23 Monday, April 25, 2011 3:20 PM
SiBE061121
1.8

Thermostat Control

Thermostat control is based on the difference between the room thermistor temperature and the
target temperature.
Thermostat OFF Condition
Thermostat ON Condition
Cooling / Dry
Heating / Radiant
Refer to "Temperature Control" on page 15 for detail.
Function and Control
The temperature difference is in the zone A.
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 : 10 minutes, Heating / Radiant : 10 seconds)
C
–1.5°C
B
A
OFF
OFF OFF
A A
B B
1.5˚C
C C
Room thermistor temperature – target temperature
ON
Cooling: –0.5°C
Dry: –0.5°C
Cooling: –2.0°C
Dry: –2.5 ~ –2.0°C
Room thermistor temperature – target temperature
2.0˚C
0.5˚C
ON ON
Main Functions
(R12319)
(R12432)
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