Important; Impellers; Sound Level; Safety - Helios GigaBox GBW EC Série Notice De Montage Et D'utilisation

Installation and Operating Instructions
EN
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IMPORTANT

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WARNING
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ATTENTION
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IMPORTANT
Centrifugal fans – GigaBox GBW EC.. / GBD EC..
– Electrical parameters
The motor rating plate provides information on the electrical data. These data are to be examined for its conformity to
the local conditions.
– Acoustics
The Gigabox casing is acoustically insulated. Adverse operating conditions etc. can lead to an increase of the given
data.

1.10 Impellers

The EC-GigaBox fans have backwards curved centrifugal impellers made from aluminium with galvanised steel support
plates. The impeller and the motor as one unity are dynamically balanced to quality standard G 6.3 – DIN ISO 1940 T.1.

1.11 Sound level

The sound levels stated in the catalogue can differ considerably after installation as the sound pressure level depends
on the absorption capacity of the room, the place of installation and other factors. Sound reduction is possible by using
sound attenuators and by speed regulation.

1.12 Safety

- A certified electrician may only carry out all servicing and installations.
- The fans may be operated only with the rated voltage indicated on the type plate.
- Technical data on type plate are to be adhered to without fail.
- The degree of protection given on the type plate is only valid with designed installation in accordance
with these installation and operating instructions and with closed aggregate.

1.13 Electrical connection

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All maintenance and installation work must be carried out with the equipment fully isolated from the power
supply. The electrical connection is to be carried out in accordance with the relevant wiring diagram and is only
to be done by a certified electrician. The electrical connection must be fully isolated from the supply up to the
final assembly!
All relevant standards, safety regulations (e.g. DIN VDE 0100) and the technical connection regulations of the energy
supply companies must be observed. An all-pole mains switch/isolator, with at least a 3 mm contact opening (VDE
0700 T1 7.12.2 / EN 60335-1) is mandatory! The rated voltage and frequency must be consistent with the information
on the type plate. The standard terminal box is located on the motor mounting plate or on the motor.

1.14 Protection against accidental contact

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When installing observe the valid regulations for labour protection and accident prevention! A protection
against accidental contact according to DIN EN ISO 13857 is to be guaranteed. Any contact with rotating parts
must be avoided. Make sure that no textiles or other materials (such as clothing) which could be sucked in are close to
the suction area of the fan. Fans protected by their installation (in ventilation ducts or closed aggregates) do not need a
protection grille, if the installation guarantees the protection. We emphasize that the installer will be held responsible for
accidents occurring as a result of missing protection devices.

1.15 Air flow direction and direction of rotation

The EC-Gigabox model ranges have a fixed direction of rotation, i.e. they are not reversible. An arrow on the units indi-
cates the direction. Correct rotation must be ensured when running the fan. Incorrect direction of rotation leads to lower
air volumes, increased noise levels and a higher electrical current, which will harm the motor.
The fan should be installed in such a way to ensure desired air flow direction in the system.
The air flow direction of the fans can be determined by appropriate installation. The discharge is possible in any direc-
tion by changing the outlet adapter and side panels (see point 3.0) to suit to desired result. Therefore most desired
discharge options are available.

1.16 Speed control

– with speed potentiometer PU/A
For stepless and direct control or nominal value preset of EC-fans with potentiometer input. Additionally equipped with
an enabling switch and LED-display for the operating status (dependant on feature of fan type). The potentiometer is
attached directly to the potentiometer input of the fan control. This has therefore a potentiometer supply of e.g. 10 V
DC and an input control signal of 0-10 V DC.
Basic diagram:
Example: Stepless speed control
Fig.1
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