6.3 During start-up check the following
Observe the following points during start-up:
1. Check the direction of rotation (see direction of rotation arrow on fan blade or rating
plate).
2. In the case of operation with frequency inverter, check that the maximum allowed
frequency and maximum allowed speed are not exceeded.
3. Check for quiet, low vibration operation. Strong vibrations due to erratic operation
(unbalanced), e.g. caused by transportation damage or improper use, can lead to
failure.
4. A-rated sound power levels of over 80 dB(A) are possible, see product catalogue.
5. Fans from ZIEHL-ABEGG SE are delivered balanced in accordance with
DIN ISO 21940-11 for the appropriate fan category in accordance with ISO 14694
Check the fan for mechanical vibrations after installation. If the limit values of the
corresponding fan category are exceeded in start-up, you must have the motor/im-
peller unit checked by an expert and rebalanced if necessary before continuous
operation is permitted.
7 Trouble shooting
7.1 Code of behaviour in the event of faults
"
In the event of faults, which represent a danger to people, installation or environment,
the fan must be switched off.
"
Search for the cause of the error.
"
Inform the person responsible for the operating site.
"
Contact the manufacturer if a fault of any kind is detected!
Attention!
Repair work which is not carried out correctly can result in serious injuries and/or material
damage.
•
Please read the Safety instructions chapter before working on the fan!
•
Before working on the fan, this must be disconnected from the power supply
and secured against switching back on!
Assembly instructions
MAXvent
Trouble shooting
L-BAL-F054-GB 2018 Index 005
Part.-No. 00501414-GB
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