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Main Functions
SiBE12-933_A
60
Function and Control
1.4
Operation Starting Control
F(C)(A)TXG25-50E
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
Fan-banned area: The fan is prohibited to rotate until the flap angle exceeds certain level.
Control Flow
Timing Chart
(1)
Opening the front
panel fully
Start
Running
(2)
Output of the
∆
D signal after
the front panel starts moving
(4)
Making the fan rotate
when the flap passes over
the fan-banned area
(3)
Opening the flap fully
(R14041)
Fully close
OFF
Start
ON
Flap
Under running control
Under operation mode control
Under operation mode control
Fan
∆
D
Fully open
Fully open
Fully close
ON
OFF
OFF
Output
ON
∆
0
Fan-banned area
(R11910)
Front
panel
Force supply
(from the
outdoor unit)
The outdoor unit provides force
when it receives the
∆
D signal.
Operation
starting control
: Actual position
of panel or flap
: Additional control
of motor