Performance Data; Noise Data; Air-Flow Direction And Direction Of Rotation; Protection Against Contact - Helios InlineVent RR Serie Notice De Montage Et D'utilisation

Installation and Operating Instructions
NOTE
NOTE
Centrifugal in-line fans – InlineVent
start-up according to chapter 8. In case of reshipment (above all, over longer distances; e.g. by sea), it must be
checked whether the packaging is suitable for the form and route of transport. Damages due to improper transportati-
on, storage or putting into operation are not liable for warranty.
2.5

Performance data

The unit type plate gives an indication of the mandatory electrical values; which must be coordinated with the local sup-
ply network. The fan performances* were established on a test stand according to DIN EN ISO 5801.
NOTE!
The maximum current in regular operation may deviate or be higher than the nominal current! Observe unit type
plate data!
2.6

Noise data

Noise data that refers to certain distances apply to free field conditions. With regard to installation, the sound pressure
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 and the room size among other factors.
2.7

Air-flow direction and direction of rotation

The RR fans have a fixed direction of rotation and air-flow direction (they are not reversible), which is indicated by the
arrows on the device. The air-flow direction can be determined during installation.
2.8

Protection against contact

- Centrifugal in-line fans RR are not delivered with fan protection guards as standard. Depending on the installation
conditions, protection against contact may be necessary on the suction and/or discharge side. Corresponding prot-
ection guards are available as accessories.
- Fans which are protected by their installation method (e.g. installation in ventilation ducts or closed assemblies) do
not require protection guards if the plant provides the necessary level of safety. Please note that the operator is
responsible for complying with the current standard and can be held liable for accidents as a consequence of missing
protection systems.
2.9

Motor protection

All models have thermal contacts wired in series with the motor windings which automatically switch off and then restart
again after cooling down.
NOTE!
Triggered thermal contacts indicate incorrect operating conditions, the cause of which must be addressed.
If the thermal contacts are triggered frequently (standstill), the fan must be inspected by a specialist according
to chapter 1.4.

2.10 Condensation

If the fan is used intermittently, especially in a humid and warm environment, or if variations in temperature occur, con-
densation may build up in the motor and draining off must be ensured. In case of condensation in the ducting and fan
casing appropriate measures must be taken during installation (water sack, drainage line). Under no circumstances
must the motor come into contact with water.
RR..
®
3
UK