Scope Of Delivery/Design; Installation Preparation; Installation - Helios RR EC Série Notice De Montage Et D'installation

Installation and Operating Instructions
CHAPTER 6

INSTALLATION

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NOTE
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NOTE
Centrifugal In-line EC Duct Fans RR EC..
All of the following information and instructions are intended solely for
authorised electricians!
6.0

Scope of delivery/Design

The centrifugal in-line fans RR EC.. consist of a casing, impeller, electric motor and the associated mounting of the
motor in the casing. There is a terminal box for connection to the mains power supply on the outside. The fans are
delivered as fully assembled units. Leave the RR unit in the packaging until installation in order to prevent any possible
damage and contamination. during transport and on site.
m ATTENTION
You can cut or scrape yourself due to sharp edges. Wear protective gloves when unpacking!
6.1

Installation preparation

m ATTENTION
You can cut or scrape yourself due to sharp edges. Wear protective gloves when checking unhindered running of
impeller!
The fan is delivered as a complete unit, i.e. ready for connection, as standard. It can be installed in any position. The
installation and start-up 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.
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.
6.2 Installation
The prevention of structure-borne sound transmission must be ensured during installation. In this respect, e.g. use pipe
clamp connectors BM.. (Fig.2) (see also Accessories section 3.1).
The mounting bracket MK 4 (Fig.3/4) (see also Accessories section 3.1) forms a simple and practical means for atta-
ching the fan to wall or ceiling elements. An elastic pad between the wall and MK is also provided for the prevention of
structure-borne sound transmission. With regard to pipe installation, it must be ensured that there is a sufficiently long
straight pipe section before and after the fan, as otherwise significantly reduced performance and noise level increases
can be expected.
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.
Fig.2 Fig.3
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