Electrical Connection; Start-Up; Operation - Helios RD Série Notice De Montage Et D'utilisation

Installation and Operating Instructions
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ATTENTION
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RD.. and VD.. – Roof Fans
3.3

Electrical connection

m WARNING
The fan must be isolated from the mains power supply and secure against being switched on again before
all maintenance and installation work or before opening the terminal compartment!
– The electrical connection and start-up must only be carried out by qualified electricians according to the information
in the terminal box / isolator switch and the attached wiring diagrams.
– All relevant standards, safety regulations (e.g. DIN VDE 0100), as well as the technical connection conditions of
energy suppliers are to be adhered to!
– An all-pole mains switch / isolator switch is mandatory for installation sizes Ø 180 to 250!
– The casing must be dismantled for electrical connection for sizes 180 to 250 in the terminal box version.
– Network configuration, voltage and frequency must be consistent with the rating plate information.
– In principle, the motors are wired in the clockwise field of rotation for clockwise rotation.
– Protective conductors, including additional equipotential bonding, must be properly installed!
– Check the waterproofing of the connection cable and tight clamping of the strands.
– The insertion of the supply line must be carried out by specialists! The connection line in the terminal box/ isolator
switch (IP 65) must compensate for the potential fan vibrations.
Installation accessories for the terminal box/isolator switch must meet the requirements of IP 65.
Never lay cables over sharp edges!
3.4

Start-up

m WARNING
The rotating impeller can crush fingers.
Ensure protection against contact before start-up!
The following inspection work must be carried out or checked before the start-up:
– Check designated use of fan
– Check permissible transport media temperature
– Compare power consumption to rating plate data
– Check fan for professional electrical installation
– Check protective conductor connection
– Remove assembly residues from the fan or duct
– Check all parts for tightness, particularly screws, nuts, protection guards. Do not loosen screws in the process!
– Check fan for solid mounting! The terminal box / isolator switch and motorised impeller unit must be freely acces-
sible.
– Ensure that the suction and outlet areas cannot be accessed by unauthorised persons.
– Check tightness of all connections (if necessary)
– Check free movement and direction of rotation of impeller by briefly switching on; wear protective glasses when
checking.
– Compare power consumption to rating plate data
– Test motor protection device for functionality. Check fan for vibration and noise during test run. In case of excessive
vibration and/or noise, it can be assumed that the fan is operating outside of its operating range. In this case, contact
the manufacturer by all means!
– Check the waterproofing of the connection cable and tight clamping of the strands
– Do not operate fan outside of specified characteristic curve (see catalogue / internet) . The fan must run at its spe-
cified operating point.
– In order to ensure sufficient motor cooling, a minimum speed/voltage, which also depends on on-si-
te resistances, wind pressure, etc., must be observed for voltage controlling through phase control.
It must be selected so that a safe, jolt-free start-up and operation are ensured.
3.5

Operation

Regularly check the proper functioning of the fan:
– Free movement of the impeller
– Power consumption in the range of the type plate data
– Check any vibrations and noises
– Formation of dust or dirt deposits in the casing or on the motor and impeller
– In case of problems with one of the aforementioned points, maintenance must be carried out according to the
instructions in chapter 4.
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