11
Service work
11.1
Repairs / maintenance
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 364).
•
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 off 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 staff).
•
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 staff. 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.
Information
Con
fi
rmation number for inquiries or in service cases see rating plate.
State the additionally engraved con
fi
rmation number (available depending on the motor build) if the
rating plate is no longer legible. This can be found under the af
fi
xed rating plate or on the stator
fl
ange
(in external rotor motors) depending on the motor size.
Assembly instructions
ECblue BASIC-MODBUS, ECblue BASIC
Service work
L-BAL-F079D-GB 2044 Index 002
Part.-No.
66/80
