www.blaubergventilatoren.de
Fresher 50 (l) (m)
11
POWER OFF THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.
THE UNIT MUST BE CONNECTED TO POWER SUPPLY BY A QUALIFIED ELECTRICIAN.
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE
MANUFACTURER’S LABEL.
The ventilator is rated for connection to single-phase AC 100-240 V 50/60 Hz power mains.
Connect the ventilator to power mains through an automatic circuit breaker with magnetic trip integrated into the home wiring system.
The tripping current of the circuit breaker is selected based on the electrical characteristics shown on the label of the fan casing. For
electric installations use insulated, durable and heat-resistant conductors (cables, wires) with the minimum cross section of 0.5 up to
0.75 mm2 for a power cable and 0.25 mm2 for signal cables.
The cable cross-section is given for reference only. The actual conductor cross-section selection must be based on its type, the maximum
permissible heating, insulation, length and installation method. Use copper wires for all the electric connections!
Connect the ventilator to power mains in compliance with the wiring diagram.
EXTERNAL CONNECTIONS DIAGRAM
The ventilator design enables connecting any external controls
with a normally opened contact (NO-contact), such as an external
CO2 sensor, humidity sensor, relay switch, etc.
When the normally open contact of the external device is closed,
the ventilator goes to a maximum speed.
The ventilators can be connected in series and in parallel with a
central control by the master ventilator.
In case of in series or in parallel connection of several ventilators
power is supplied either from a previous ventilator or from power
mains.
N
L
N
L
In
Gnd
NO1
NO2
+12V
Gnd
Out
QF*
L (~)
N (~)
Control signal output
to the next ventilator
Power
АС 100-240V
50/60 Hz
Power to the
next ventilator
Normally open contact
of the external device
(relay sensor)
Control signal input from
the previous ventilator
CONNECTION TO POWER MAINS
