Vaillant V 12-025 HWI Training Manual page 41

Note!
When Tp is lower than 30ºC, the air door will turn
on upward to the position of anti-cold wind at 60°
B. During the process that the temperature of
indoor coil increases from 25 ºC to 30 ºC, the
slight breeze is blown from the indoor fan.
A. During the process that the temperature of
indoor coil reduces from 30 ºC to 25 ºC, the low
wind is blown from the indoor fan.
When Tp is no lower than 30 ºC, the indoor fan will
blow out low wind and exit from anti-cold wind
state and the air door will return to the original
working condition before entering anti-cold wind
state.
When Tp is lower than 25 ºC, the indoor fan is
shut down; When Tp is in the range of 25ºC~30ºC,
the indoor fan exits from anti-cold wind state and
the air door still stops at the position of anti-cold
wind at 60°; When Tp is no lower than 30 , the air
door will return to the original working condition
before entering anti-cold wind state.
When the compressor is shut down, the air door
will turn on upward to the position of anti-cold
wind at 60°.
• In heating mode, the operating curve of the indoor
fan is as the following when the automatic wind is
set (Note: The second condition is prior to the third
condition.)
5. Four-way valve working condition:
• The four-way valve keeps running in the cooling
mode.
6. The working condition of outdoor air door:
• As for the position of air door, there are the
following definitions:
The position of the air door in full opening is 0°; The
angle from full opening and full closing position is 190°.
1) When the air conditioner is powered up, the air door
turns to the full opening position firstly, and then turns
back 92° and closed.
Split Type Installation Manual
PCB Explanation 9
2) When the air conditioner is turned off, the air door
turns to the full opening position firstly, and then turns
back 92° and closed.
3) When the air conditioning is turned on, the air door
turns to the full opening position firstly and then
begins to operate.
4) In the heating mode, when both the compressor and
anti-cold wind state are turned off, the air door will stop
at the position at 60°. After exiting from the anti-cold
wind state, the air door will return to the original
working condition before entering anti-cold wind state.
5) The operating condition of the fixed wind in heating
mode.
If the wind status is set to the fixed wind when the
air conditioner is first powered up, the air door
turns to the full opening position firstly, and then
stops at the position of 190°.
If the machine switches from nature wind or
swinging wind to the fixed wind, the air door stops
at the current position and keep a record for the
position(If there is no record on the last position,
the air door will stop at the place that it stopped for
first time in fixed wind operation.)
6) The operating condition of the swaying wind in
heating mode, see the above figure.
The starting position of the air door for swaying
wind is at 10°
When the state turns to the swaying wind from the
fixed wind or nature wind, firstly, the air door
returns to the full opening position and then
operates in the swaying wind way.
The air door sways among 10° to 42°.
7) In the swaying wind mode, the nature wind is
formed during the process that the air door runs
EN 41