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| Installation
Preconditions
♦ Ensure that the fan and all its components are
undamaged.
♦ Ensure that there is enough space to install the fan.
♦ Protect against dust and moisture when installing.
♦ Do not install the fan if the gap in the table (5.1.3 Air
gap between housing and impeller, page 5) is not
complied with.
♦ Ensure that the information on the name plates (fan
and motor) matches up with the operating conditions.
♦ A warning sign must be attached close to the air
outlet, stating that the air outlet must not be covered.
♦ Fit the fans in such a way that there is sufficient
access for troubleshooting, maintenance and repair.
Tests after long storage time (more than 12 months)
Note:
We recommend an inspection by the after-sales service of Systemair before commissioning.
Test the motor windings:
♦ Measure the insulation resistance of each motor winding against grounding at 500 V DC. The insulation resistance
must be > 10 mΩ.
Measures for an insulation resistance < 10 mΩ:
1. If the motor has drain plugs, remove them to allow any moisture to drain and replace them when the motor windings
are suitably dry.
2. Dry the motor in a warm dry airflow (typically 40 degrees Celsius).
3. Measure the insulation resistance of each motor winding against grouding at 500 V DC.
4. Repeat the aforementioned steps until the measurement outcome > 10 mΩ.
Mounting feet
Depending on the kind of fan and the construction size, mounting feet are either included in the delivery or available as
accessories. If you are not sure, check the online catalogue or contact Systemair.
Avoid resonance frequencies
Important
Risk of damage to the fan due to resonance frequencies
♦ The minimum fan speed should be double the resonance frequency of the anti-vibration system
(vibration dampers).
♦ To avoid resonance frequencies, see 8.3 Frequency converter (if used), page 24.
7.1 Vibration dampers
Important
Risk of damage to the fan due to incorrect vibration dampers
♦ Use the vibration dampers suitable for the respective
weight.
♦ Use the vibration dampers with fire resistance classes that match the respective application.
Sylodyn vibration kit (if used)
The responsibility for the Sylodyn vibration kit installation is with the buyer/installer.
Important
Risk of damage to the fan due to incorrect installed vibration dampers
♦ The fan shall rest entirely on the sylodyn anti vibration blocks. It is important that the fan is not pressed
against the mounting frame, therefore the minimum distance of 15 mm has to be kept, see following
picture.
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