8 Service work
8.1 Maintenance/servicing
Attention!
•
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!
•
No maintenance work at running fan!
•
Allow maintenance work to be carried out by trained specialists only.
•
Any faults detected in the electric system/modules/operating equipment must be
corrected immediately. If these faults are not corrected, the device/system is
potentially very dangerous. The device/system must therefore not be operated when it
is faulty.
•
Wear safety clothing / shoes and cut-resistant safety gloves when handling!
•
Please observe the safety regulations and the worker
´
s protection rules by all
maintenance and service work (EN 50 110, IEC 60364-1).
•
Fuses must always be only replaced; never repaired or bridged. The speci
fi
cations for
the maximum series fuse must always be adhered to (see Technical data). Only fuses
cited in the electrical circuit diagram may be used.
•
Generator operation can produce dangerous voltages (see safety instructions)!
•
Keep the airways of the fan free - danger because of objects dropping out!
•
Watch out for vibration free motion!
•
The impeller is subject to natural wear depending on the area of application and the
conveying medium. Deposits on the impeller can lead to imbalance and damage
(danger of permanent fracture). The impeller can burst!
•
If highly aggressive media for which the product is not suited are conveyed, the
severe corrosion may result in the impeller breaking. Any impellers corroded in this
way must be replaced immediately.
•
Deposits on the motor, particularly on the cooling vanes and in recesses on the rotor,
can lead to reduced cooling performance and the motor switching o
ff
prematurely. For
this reason, remove deposits quickly (see chapter: Cleaning).
•
Maintenance interval in accordance with the degree of contamination of the impeller!
•
Check the fan at regular intervals (recommendation: every 6 months) for mechanical
oscillations. Observe the limits speci
fi
ed in ISO 14694 and, if they are exceeded,
implement remedial measures (e.g. rebalancing by specialist sta
ff
).
•
Check the impeller, in particular the weld-seams, for possible cracks.
•
Repair, e.g. by welding is prohibited!
•
Bolted-on impellers and/or wings may only be replaced by authorised
ZIEHL-ABEGG SE sta
ff
. The manufacturer shall not be liable for damage caused
through improper repair work.
•
Please consult our service department with regard to changing the bearing as for all
other damage (e.g. to the coil).
•
Regular inspection and possibly cleaning is necessary to prevent imbalance and
blockage of the drain holes due to ingress of dirt.
•
When opening cable glands on the fan / motor, check the condition of the threaded
connections and seals. Always replace defective or brittle threaded connections and
seals.
Assembly instructions
ECblue
Service work
L-BAL-F056-GB 2022/45 Index 005
Part.-No. 00700562-GB
37/44
