1.10 Functional Safety - Emergency Operation; Warranty Claims - Exclusion Of Liability; General Information; Certificates - Guidelines - Helios RDEC Série Notice De Montage Et D'utilisation

Installation and Operating Instructions
CHAPTER 2

GENERAL INFORMATION

m
WARNING
* (performance and noise data can be found
in the current Helios publications and on the
internet)
CHAPTER 3

INSTALLATION

RD/VD.. EC – Roof Fans
1.10 Functional safety – Emergency operation
When using the roof fan in an important supply function, the plant is to be designed so that emergency operation is
automatically guaranteed in case of fan failure. Suitable solutions are, for example,: parallel operation of two less po-
werful units with a separate electric circuit, standby fan, alarm systems and emergency ventilation systems.
2.0 Warranty claims – Exclusion of liability
All versions of this documentation must be observed, otherwise the warranty shall cease to apply. The same applies
to liability claims against Helios. The use of accessory parts, which are not recommended or offered by Helios, is not
permitted. Any possible damages are not covered by the warranty. Changes and modifications to the unit are not per-
mitted and lead to a loss of conformity, and any warranty and liability shall be excluded in this case.
2.1

Certificates - Guidelines

If the product is installed correctly and used to its intended purpose, it conforms to all applicable provisions and EU
guidelines at its date of manufacture.
2.2

Shipping

The fan is packed ex works in such a way that it is protected against normal transport strain. Carry out the shipping
carefully. It is recommended to leave the fan in the original packaging. The fan must be kept in the casing or the provi-
ded lifting lugs (over Ø 450) for transportation or installation. In this respect, only use appropriate lifting equipment and
fastening devices. Weight information can be found on the label on the unit.
Do not transport fan on the connection cables, terminal box or impeller!
Do not stand under suspended loads!
2.3

Receipt

The shipment must be checked for damage and correctness immediately upon delivery. If there is any damage,
promptly report the damage with the assistance of the transport company. If complaints are not made within the agreed
period, any claims could be lost.
2.4

Storage

When storing for a prolonged time, the following steps are to be taken to avoid damaging influences: Motor protection by
dry, airtight and dust-proof packaging (plastic bag with desiccant and humidity indicators). Vibration-free, water-tight and
constant-temperature storage at a temperature in the range -20 °C to +40 °C, which must not be exceeded. In case of
a storage period of more than three months or motor standstill, maintenance must be carried out before start-up according
chapter 8. In case of reshipment (above all, over longer distances; e.g. by sea), it must be checked whether the packa
ging is suitable for the form and route of transport. Damages due to improper transportation, storage or putting into
operation are not liable for warranty.
2.5

Series

These installation and operating instructions describe the following Helios roof fan series:
Series
Radial roof fans RD..
Vertical roof fans VD..
Binding information on the individual fan types can be found on the type plate.
2.6

Performance data

The unit type plate gives an indication of the mandatory electrical values; which must be coordinated with the local
supply network. The fan performances* were established on a test stand according to DIN EN ISO 5801: 2010-12; they
apply to the nominal speed and standard design using an inlet nozzle, without a protection guard and with unhindered
inflow and outflow. Different versions and unfavourable installation and operating conditions can lead to a reduction of
output.
2.7

Noise data

The noise data* also refers to the directive mentioned in section 1.4. Housing variations, unfavourable operating con-
ditions and many other things can lead to an increase in the specified catalogue values. Data that refers to certain di-
stances (1, 2, 4 m) apply to free field conditions. With regard to installation, the sound pressure level can differ signifi-
cantly from the catalogue data, as it is highly dependent on the installation conditions, i.e. on the absorption capability
of the room, the room size among other factors.
3.0 Installation
The installation site must be suitable for the roof fan in type, composition, ambient temperature and ambient medium.
The substructure must be level and sufficently load bearing. The mounting elements should be as level as possible
(max. 5 % incline), however, installation on inclined surfaces up to 45° angle of inclination is possible (e.g. pitched
roof base type SDS, Accessories).
Version
EC
EC
5
EN
Diameter
180 - 630 mm
180 - 630 mm