Commissioning; Operation - SystemAir KBR 280 Installation And Operating Instructions Manual

Caution
Damage as a result of incorrect commissioning of the frequency converter.
♦ Install the fan and frequency converter as near as possible to one another.
♦ Use shielded cables.
♦ All components (fan, frequency converter and motor) must be grounded.
♦ Avoid running the fan via the frequency converter below 10 Hz.
♦ Heating of the motor due to use of a variable frequency drive must be checked in the application by the
customer.
♦ Never exceed the maximum impeller rotation speed indicated on the name plate of the fan.
♦ In any case Systemair recommends an all-pole sine filter if the fan is operated with a frequency
converter.
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Commissioning

Warranty claims can only be made if commissioning work is carried out correctly and written evidence thereof is
provided.
Safety information
♦ Observe 2 Important safety information, page 1
Preconditions
♦ Installation and electrical connection have been
correctly performed.
♦ Before switching the fan on, check for externally
visible damage and ensure that the protective
equipment functions properly.
Commissioning of speed-controlled fans
Check the fan for vibrations at all normal operation speeds during commissioning. Determine and evaluate vibrations
on the housing and bearing areas in accordance with DIN ISO 14694 depending on motor power and positioning.
Measurable vibration velocities depend e.g. on following factors:
• positioning
The working point of the fan, as well as used external devices and accessories, also influence the running
characteristics.
Tests
Do the tests requested in the commissioning report (16 Commissioning Report, page 15)
11

Operation

Safety information
♦ Observe 2 Important safety information, page 1
| 004
♦ Inlet and outlet are free.
♦ Cable glands are tight.
♦ Safety devices have been fitted.
• bottom section/foundation state
Commissioning |
• flow conditions
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