Programme Dry Function - Daikin FTXS09DVJU Service Manual

SiUS04-702
1.4

Programme Dry Function

Programme dry function removes humidity while preventing the room temperature from lowering.
Since the microcomputer controls both the temperature and air flow volume, the temperature
adjustment and fan adjustment buttons are inoperable in this mode.
In Case of The microcomputer automatically sets the temperature and fan settings. The difference between
the room temperature at startup and the temperature set by the microcomputer is divided into two
Inverter Units
zones. Then, the unit operates in the dry mode with an appropriate capacity for each zone to
maintain the temperature and humidity at a comfortable level.
Room temperature at
Function and Control
Set temperature
startup
75ºF or more
Room temperature at
74ºF
64ºF
63ºF
Zone C = Thermostat ON
Zone B
Y
Zone A = Thermostat OFF
Thermostat OFF point
X
– ∆
X
startup
– ∆
X
– ∆
64ºF X
Zone B
Main Functions
Thermostat ON point
Y Z
– ∆
X 0.9ºF
or
4.5ºF
∆
Y + 0.9ºF (zone B)
continues for 10 min.
– ∆
X 0.9ºF
or
3.6ºF
∆
Y + 0.9ºF (zone B)
continues for 10 min.
– ∆
X 0.9ºF = 63ºF
or
3.6ºF
∆
Y + 0.9ºF (zone B)
continues for 10 min.
Z
+ ∆0.90ºF
(R6972)
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