Scope Of Delivery/Design; Installation Preparation; Installation - Helios MultiVent MV EC125 Notice De Montage Et D'utilisation

Installation and Operating Instructions
EN
CHAPTER 5

INSTALLATION

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MultiVent MV EC
All of the following information and instructions are only intended for an
authorised qualified electrician!
5 .0

Scope of delivery/Design

The fans are delivered as complete units as standard, i.e. ready to install. Installation is possible in every axle position
– horizontal, vertical, diagonal (see Fig. 11).
Delivery consists of a plastic casing with integrated clamp, motor and impeller. The terminal box is located on the outs-
ide for connection of mains and control cables. Remove the MV EC unit from the box just before installation to prevent
any damage and contamination during transportation and on site.
5 .1

Installation preparation

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CAUTION
You can cut or scrape yourself due to sharp edges . Wear protective gloves when checking the unhindered running
of the impeller!
The fan is delivered as a complete unit as standard, i.e. ready to install. The EC fans can be installed in every axle
position in a ducting system. The installation and commissioning of the fan should take place after the completion of all
other works and after the final cleaning, in order to prevent damage and contamination of the ventilation unit. In order to
avoid distortion of the casing and therefore striping of the impeller, the attachment must be level and sufficiently stable.
After the removal of packaging and the start of installation, the following points must be checked:
– is there any transport damage,
– broken or bent parts
– free movement of the impeller
When the impeller is turned by hand, there will be slight resistance due to the permanent magnets . This is for
technical reasons and it is not a malfunction .
5 .2 Installation
During installation, ensure that structure-borne sound transmission is prevented. With regard to duct installation, it must
be ensured that there is a sufficient length of straight duct (min. 1x long side) before and after the fan, as otherwise sig-
nificantly reduced outputs and increased noise levels can be expected. The fan may only be mounted to walls, ceilings
and consoles etc. with sufficient load bearing capacity!
NOTE !
Full fan performance can only be achieved with free inflow and outflow .
Sufficient motor cooling must be ensured, so that there is a minimum air flow area of 20 % for the fan cross-section.
The fans are easy to remove by opening the clamp (see Fig. 12). The fan requires little space due to its low construction
height, e.g. in suspended ceilings.
Fig .11
Wall and ceiling installation takes place with the mounting bracket integrated in the fan.
For this purpose, loosen the screws (4x) on both clamps and press lock upwards (see Fig. 13).
Fig .13
Fig .12
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