1. SAFETY
The following symbols refer to
particular dangers or give advice for save
operation
Danger
Danger from electric current / high voltage!
Danger! Do not step under hanging load!
Crush danger!
Important, information
Safety advice
Wolter In line ducts are produced in
accordance with the latest technical standards
and our quality assurance programme, which
includes material and function tests, ensures
that the final product is of a high quality and
durability. Never the less these fans can be
dangerous if they are not used and installed
correctly, according to the instructions
Before installing and operating this fan
please read instructions carefully!
Only use the fan after it has been securely
mounted and fitted with protection guards and
maintenance cover to suit the application
(Tested guards can be supplied for all fans
from our programme). Installation, electrical
and mechanical maintenance and service
should only be undertaken by qualified worker!
The fan must only be used according to its
design parameters, with regard to required
performance stated in the name-plate and
mediums passing through it!
2. DESCRIPTION
Duct fans were especially developed for use in
modern ventilation systems. By using external
rotor motors there are significant technical
advantages in operation. All duct fans are 100%
speed controllable and are statically and
dynamically balanced as a composite unit in
our factory. The fans are also available with
motor/impellers to be folded out for
maintanence
3. CONDITIONSOFUSE
Duct fans can be used for ventilation of:
•Clean air
•Slightly dusty and greasy air
•Slightly aggressive gases and fumes
(please refer to our engineers)
•mediums up to an atmosheric density of
1,2 kg/m3
•Mediums passing through with a
temperature of -30°C up to + 40°C
•Mediums up to a max. Humidity of 95%
4. STORAGE & TRANSPORT
•Store the fan on a dry place and weather
protected in its original packing
•Cover open palettes with a tarpaulin and protect
the fans against influence of dirt (i.e. Stones,
splinters, wires, etc.).
•Storage temperatures between -30°C and +
40°C
•With storage times of more than 1 year, please
check the bearings on soft running before
mounting (turn by hand).
•Transport the fan with suitable loading means:.
•Do not damage casing.
•Use suitable assembling means as e.g. scaffolds
conforming to specifications.
Danger! Do not step under hanging load!
5. INSTALLATION
Installation and electric work only by skilled
and introduced workers and in accordance to
applying regulations!
Installation of fan either with mounting flange directly to
the duct system, possibly by conjunctions with a sound
attenuator or, in order to avoid noise transmission, with
flexible connectors, installed on the inlet and outlet.
The standard method of mounting is via a pre-prepared
platform or for vertical mounting channel section
brackets fixed to the fan casing. (8" weight as per chart
in enclosure
For installation on mounting flange use M8 screws and
secure properly
Avoidsoundbridges byuse ofisolation
material (i.e. sponge rubber)
Check impeller rotation by hand for soft running
For external mounting weather protection should be
used.This should be designed to suit the installation
and is supplied by others.
The duct system must not be supported by
the fan casing !
