Operation Starting Control - Daikin FTXG25JV1BW Service Manual

Main Functions
1.3

Operation Starting Control

The system carries out the following control at the beginning to conduct every functional parts
properly.
1. Opening the front panel fully
2. Output of the ∆D signal after the front panel starts moving
3. Opening the flap fully after the front panel opens fully
4. Making the fan rotate when the flap passes over the fan-banned area
Control Flow
Timing Chart
Fully close
Front
panel
Fully open
Fully open
Flap
Fan-banned area
Fully close
Fan
OFF
Output
∆D
Force supply
(from the
outdoor unit)
OFF
21
(1) Opening the front panel fully
(3) Opening the flap fully
Start
OFF
starting control
ON
∆0
ON
Start
(4) Making the fan rotate when
the flap passes over the
fan-banned area
Running
Operation
Under operation mode control
Under operation mode control
The outdoor unit provides force
when it receives the ∆D signal.
SiBE041012_A
Output of the ∆D signal after
(2)
the front panel starts moving
ON
: Actual position
of panel or flap
: Additional control
of motor
Under running control
(R11910)
Function and Control
(R14049)