Thermostat Control - Daikin CTX Series Service Manual

DAMA-SM-21-003
1.7

Thermostat Control

Outline Thermostat control is based on the difference between the room thermistor temperature and the
set temperature.
Details Thermostat OFF Conditions
 The temperature difference is in the zone A.
Thermostat ON Conditions
 The temperature difference returns to the zone C after being in the zone 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
Heating
Functions and Control
(Cooling/Dry/Heating: 2 minutes)
Room thermistor temperature – set temperature
Zone C Zone C
–1.0°C
(–1.8°F)
Zone B Zone B
Zone A Zone A
Room temperature – set temperature
A
B
C
ON ON
Cooling : –0.5°C (–0.9°F)
Dry : –0.5°C (–0.9°F)
Cooling/Dry : –1.5°C (–2.7°F)
OFF OFF
OFF OFF
ON ON
Main Functions
1.5°C
(2.7°F)
0.5°C
(0.9°F)
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