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Commissioning
8.3 Frequency converter (if used)
Risk from resonant frequencies when using frequency
converter.
♦ Only operate the fan outside these speed ranges.
♦ Pass through these speed ranges so quickly that any
vibration cannot exceed the admissible resonant
frequency values.
♦ For variable-speed fans, use a permanent vibration
monitoring for long-term safe operation.
♦ Observe the operating instructions of the frequency
converter.
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.
♦ We recommend using all-pole sinus filters.
Operation of the frequency converter
♦ The rated electrical motor data indicated on the nameplate must not be exceeded during converter operation.
♦ Operation at frequencies below 10Hz and above 60Hz must be avoided.
♦ Smoke extract axial fans should be operated at maximum mains frequency. If the mains frequency is to be
exceeded in individual cases, please contact Systemair in advance.
♦ Starting time: min. 60 sec.
9 Commissioning
Warranty claims can only be made if commissioning work is carried out correctly and written evidence thereof is
provided.
It is recommended to fill out the commissioning report chapter 15.
Safety information
♦ Commissioning may only be carried out by adequately qualified persons, details see Table 1 Qualifications, page 2.
Preconditions
♦ Installation and electrical connection have been
correctly performed.
♦ Residual material from installation and foreign objects
have been removed from the fan and ducts.
♦ Inlet and outlet are free.
♦ Safety devices have been fitted.
♦ Ground cable is connected.
♦ Cable glands are tight.
♦ Data on the name plate corresponds with the
connection data.
9.1 Tests
♦ Before switching the fan on, check for externally visible damage and ensure that the protective equipment functions
properly.
1. Switch the fan on.
2. Do the tests requested in
the commissioning report (15 Commissioning Report, page 30)
Speed controllable fans: “Measured data at commissioning” at maximum speed
3. Switch the fan off.
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