Helios SilentBox SB Serie Notice De Montage Et D'entretien page 21

Installation and Operating Instructions
CHAPTER 6
INSTALLATION
n
n
NOTE
Centrifugal Fan Boxes – SilentBox
All of the following information and instructions are intended solely for
authorised electricians!
6.1 Scope of delivery/Design
The Silentboxes SB.. consist of a sheet steel casing, lined on all sides with 50 mm thick mineral wool lining and motor-
impeller-unit mounted on the motor bedplate. Cover is easily removable through four swing tops. Motor and impeller
can swing out. 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 SB unit in the packaging until installation in order to prevent any possible damage
and contamination during transport and on site.
m CAUTION
You can cut or scrape yourself due to sharp edges. Wear protective gloves when unpacking!
6.2 Installation preparation
m CAUTION
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 as standard, i.e. ready for connection. 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.
In order to prevent the warping of the fan casing, the attachment must be level and sufficiently stable.
Before mounting to a wall or ceiling, the supplied mounting brackets must screwed to the casing (not the cover), pre-
ferably in the corners.
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
6.3 Installation
During installation, ensure that structure-borne sound transmission is prevented. Mount with corresponding damping
elements (accessories SDD / SDZ) provided. Furthermore, e.g. use flexible mounting clamps FM.. (accessories) for
ducts.
With regard to duct installation, it must be ensure that there is a sufficient length of straight duct
(2.5 x D) before and after the fan, as otherwise significantly reduced outputs and increased noise levels can be expec-
ted. Carry out installation and inspection flap so that problem-free fan maintenance is possible without removal. 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.
6.4 Installation example: Suspended ceiling
When installing directly in pipeline, e.g. in suspended ceilings (see Fig. 8), the units with small installation
depths fit everywhere. Installation is possible in any position – horizontal, vertical and diagonal.
Installation in suspended ceiling.
Fig. 8
Direct in pipeline.
® SB ...
Fig. 9
Motor-impeller-unit
swings out
7
EN