12
TwinFresh Expert (Duo) RA/M1
www.vents-us.com
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 АС 100-240V 50/60 Hz power mains.
Connect the unit to power mains through the external automatic switch with a magnetic trip integrated into the fixed 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 electric leads (cables, conductors) with the minimum cross section
0.5 up to 0.75 mm
2
for the power cable and 0.25 mm
2
for the control cables. The cable cross-section is given for reference only. The actual
conductor cross-section selection must be based on its type, 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 external devices with
a normally open contact (NO-contact), such as an external CO
2
sensor, a humidity sensor, a 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 (~)
N (~)
L
In
Gnd
NO1
NO2
+12V
Gnd
Out
QF*
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
* The units are not included in the delivery set
CONNECTION TO POWER MAINS
Содержание TwinFresh Comfo RA1-50
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