
www.vents-us.com
TwinFresh Expert (Duo) RW1
VENTS-US
400 Murray Road
Cincinnati, OH 45217
Phone: 513-583-5786
5
CONNECTION TO POWER MAINS
POWER OFFTHE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.
THE UNIT MUST BE CONNECTEDTO 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 xed 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 0.5upto0.75mm2 (No.20÷18AWG) for the power
cable and 0.25mm2(No.23AWG) 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 CO2sensor, 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.
L (~)
N (~)
QF*
N
L
N
L
In
Gnd
NO1
NO2
+12V
АС 100-240V
50/60 Hz
Power to the
next ventilator
Input for 0-10 V
analogue sensor
NO contact
of an external control unit