Selecting The Operating Level; Venting Programme - WITA Delta Midi 40-Series Einbau- Und Betriebsanleitung

Operating instrutions
7.4

Selecting the operating level

You can change the operating level by pressing the button (< 3 sec.).
You can select from four levels in the constant characteristic operating mode (I - IV)
and four in the proportional characteristic operating mode (1 - 4). The level set is
indicated by the number of illuminated green LEDs. The more LEDs that are
illuminated, the higher the set level. No green LED illuminates in minimum operation
mode. The following table shows which LED illuminates at which level:
Constant level
I
LED 7
LED 6 X
LED 5
LED 4
LED 3
LED 2
LED 1 X
LED 7
LED 6
LED 5
LED 4
LED 3
LED 2
LED 1
7.5

Venting programme

Pressing and holding the button (8 - 13 sec.) starts a venting programme that
lasts around four and a half minutes. The four LEDs illuminate up and down as a
chase, and the programme goes through levels with varying speeds and duration.
You can end the process prematurely by pressing and holding the button again.
The pump will then return to the previously selected operating mode.
32
WITA Delta Midi 40-XX | 60-XX
II III IV 1
X X X
X
X
X X
X X X
X X X X
IV
III
min.
0
Proportional level
2 3 4
X X X
X
X X
X X X
X X X
4
3
II
2
1
I
1 2
Minimum
operation
min.
X
3 4 Qm 3 /h