DELIVERY
Fans should be inspected on delivery to ensure no damage was sustained
during transit and that the quantity and type of parts are correct. If any
discrepancies are apparent or goods are found to be damaged, contact your
Sigrist Design sales representative immediately.
STORAGE
If a fan or other products are not installed immediately after delivery, the
goods must be stored in a clean and dry environment. Failing to meet these
conditions may void the product’s warranty.
SAFETY
Rotating fans are dangerous and pose a serious risk to safety if precautions
are not undertaken. It is the responsibility of those undertaking work
to ensure the safety of those involved. The following safety tips are
recommended as a starting guide to staying safe when maintaining or
inspecting fans.
1. The fan should be electrically isolated before maintenance work
is started.
2. Ensure the blades of the fan are not rotating.
3. Install each fan in an easy access location so that there is minimal
obstruction to remove or open the fan.
4. Ensure workers are fully qualied to undertake inspection and/or
maintenance work.
5. All fasteners should be regularly checked to ensure tightness.
START UP
Before starting up the fan, ensure the blades are clean and free from
debris and all fasteners are tight. Once the fan is started, the impeller
should rotate in the direction of the arrows on the side of the fan casing (if
applicable). If the blades are rotating in the opposite direction, the fan may
have been wired incorrectly. If so, refer to the fan’s wiring diagram on page
6.
Air should be moving in the direction of the arrow on the side of the fan
casing (if applicable). If the air is moving in the opposite direction, the fan
may have been wired incorrectly. If so, refer to the fan’s wiring diagram on
page 6.
If a fan which contains a backwards curved centrifugal impeller sounds
excessively loud on start up with the air moving in the correct direction,
the rotor would be running backwards. In such case, refer to the respective
wiring diagram on page 6.
MAINTENANCE
After installation, each fan should be inspected after three months to
ensure all fasteners are tight and the blades are clean. Following this, fans
are to be inspected at regular intervals no longer than six months apart. It
may be required to undertake inspection at shorter intervals depending on
the environment or air ow conditions.
Belt driven fans should have the pulley alignment and belt tension
inspected before start-up. These should be inspected again, and the belt
tightened within the rst month of operation.
SOUND LEVELS
Technical data provided for each fan lists the sound levels in hypothetical
free eld conditions. This is where the fan is not surrounded by any walls or
obstructions and sound propagates spherically outwards.
It is important to note that the perceived sound level on site will be louder
than that specied in the technical data. This is because the surrounding
environment to the fan signicantly aects the way the sound is
propagated. Factors that aect sound levels may include the fan’s proximity
to a wall, corner, obstruction or another fan, the reectivity of the material
of the walls nearby, the distance between the observer and the fan as well
as the angle between the fan’s direction and the observer.
The operating point of the fan can also cause higher than expected sound
levels or tonality. Ideally each fan should be performing as close to the point
of maximum eciency for most of its operation. Performing to the left
side of the fan performance curve increases the low frequency spectrum of
sound giving a perceived “rumble”. Operating to the right side of the fan
curve increases mid to high frequency noise.
TERMS AND CONDITIONS OF TRADE
For a full list of terms and conditions of trade, click here
WARRANTY DETAILS
TERMS AND CONDITIONS
WARRANTY
For full warranty details, click here:
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