10
www.blaubergventilatoren.de
VENTO A50 / A50-1 / A50 S / A50-1 S
Two control channels are used for connection of Vento A50 units to the
control panel SEA. Such design solution provides flexibility during connection
of several Vento A50 units.
The impeller rotation direction at start of the regeneration mode or in
ventilation mode is determined by positioning the jumper JMP1 on the
ventilation unit circuit board. The jumper positioned in «Flow In» position sets
the unit to supply mode and the jumper positioned in «Flow Out» position
sets the unit to extract mode.
The VENTO A50 is connected to the control panel SEA with a five-wire cable.
The wire colour marking corresponds to the supplied cable. The minimum
conductor cross section is 0.25 mm
2
(23 AWG).
Type and power of the step-down transformer T1 is selected to provide 12 V
alternating current voltage and 3 W power consumption of each Vento A50 unit.
Separate power supply (230 V / 50 Hz or 120 V / 60 Hz) must be connected
both to the control unit SEA (SEA-Т) and to the ventilation unit to enable
actuation of the automatic shutters (socket connectors 31-32 in each case).
All electric connection to the control unit and the ventilator are performed
with the socket connectors (detachable terminal blocks) for mounting and
servicing facilitation. Each mating part of the socket connector has colour
marking in compliance with marking on the circuit board to ensure correct
and quick electric installation.
The control panel SEA is used to set one of four operation mode of the unit,
fig. 17:
1. Ventilation mode (air extract / air supply)* at the first speed with air flow 26 m
3
/h.
2. Ventilation mode (air extract / air supply)* at the second speed with air
capacity 53 m
3
/h.
3. Reversible (regeneration) operation at the first speed with air flow 26 m
3
/h.
The unit changes air flow direction every 70 seconds.
4. Reversible (regeneration) operation at the second speed with air flow 53 m
3
/h.
The unit changes air flow direction every 70 seconds.
* - air flow direction depends on position of the jumper JMP1 on the
circuit board. The jumper is set to supply mode by default, fig. 18.
Unit on
Unit off
First
speed mode
Reversible
operation mode
Second
speed mode
Extract /
supply mode*
Fig. 17.
Fig. 18. General wiring diagram for connection of Vento A50 unit to the SEA control panel
31
32
33
34
35
36
11
12
13
14
15
11
12
13
14
15
1
2
3
4
5
1
2
3
4
5
31
32
33
34
35
36
37
38
39
40
ÕÒ
3
25
21 22 23 24
15
14
13
12
11
5
1
2
3
4
1
2
3
4
5
31
32
33
34
35
36
37
38
39
40
ÕÒ
3
25
21 22 23 24
15
14
13
12
11
5
1
2
3 4
L
N
5
4
3
2
1
SEA control panel
Vento A50
JMP1
Marking "1-5" on the
connecting cable socket
connector
Marking "11-15" on the
controller socket
connector
~120 V
or
~230 V
~120 V
or
~230 V
Marking "1-5" on the
connecting cable
socket connector
Marking "11-15" on the
controller socket
connector
Marking "21-25" on the
controller socket
connector
~120 V
or
~230 V
gre
y
br
own
yello
w
gr
een
whit
e
grey
brown
yellow
green
white
white
white
red
red
Transformer 12 W
АТ-12
