Chapter 3 Product Information; Functional Safety - Emergency Operation; Performance Data; Noise Data - Helios VDD T120 Montage- Und Betriebsvorschrift

Installation and Operating Instructions
EN
CHAPTER 3
PRODUCT
INFORMATION
Roof fans – VDD T120
2.8 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 include, e.g.: parallel operation of two less powerful
units with a separate electric circuit, standby fan, alarm systems and emergency ventilation systems.
2.9

Performance data

The unit type plate gives an indication of the electrical values. These must be coordinated with the local supply network.
The unit performance has been established on a test stand according to DIN EN ISO 5801: 2010-12. The performance
applies to the nominal speed and standard design with unobstructed inflow and outflow. Different versions and unfa-
vourable installation and operating conditions can lead to a reduction of output.

2.10 Noise data

Casing variations, unfavourable operating conditions, etc. can lead to an increase in the specified performance and
noise data (see current Helios printed material and internet).
Data that refers to certain distances (1, 2, 4 m) apply to free field conditions. With regard to installation, the sound pres-
sure level can differ significantly from the catalogue data, as it is highly dependent on the installation conditions, i.e. on
the absorption capability of the room, among other factors.

2.11 Regulations and guidelines

If the unit is installed correctly and used to its intended purpose, it conforms to all applicable regulations and CE guide-
lines at its date of manufacture.
2.12 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 the manufacturer.
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 product are not permitted and lead to a loss of conformity, and any warranty and
liability shall be excluded in this case.
3.1

Technical data

The product-specific technical data can be found on the type plate. The individual data is described below using an
example:
Type: VDD 630/6 T120
ä
400/690 V D/Y
ö
980 1/min
Ø
Einsatz und Betrieb nur gemäß Instruktions-Nr.
Operation only according to instruction no.
Utilisation uniquement selon instruction no.
Fan type plate key:
ò Manufacturer's address
ù CE marking
ä Version:
VDD Type designation; three-phase current
630 Size
6 Pole
ë Ref. no. / Production code
HELIOS VENTILATOREN GmbH + Co KG
Lupfenstraße 8, 78056 Villingen-Schwenningen, Germany
Art.-Nr.: 7456
ë
50 Hz 10 A
ü
Å
IP55 Iso.cl. F
27 199
ö Rated voltage / Frequency
ü Rated current
Å Indicated rated power
î Max. ambient, air flow temperature at rated operation
Ø Rated speed
 Protection category / motor insulation class / capacitor
 Weight
5
ù
q
PC 08510
001
TN 120 °C
î
4,0 kW
125 kg

Fig. 1