Servicing And Maintenance; Fault Causes; Standstill And Disposal - Helios SlimVent SVR Série Notice De Montage Et D'utilisation

Installation and Operating Instructions
CHAPTER 8
SERVICING AND
MAINTENANCE
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WARNING
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WARNING
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Flat Centrifugal Fan Boxes – SlimVent SV..
8.0

Servicing and maintenance

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WARNING!
Touching live parts will lead to electric shock.
Before any servicing and maintenance work, isolate the fan from the mains power supply and protect against
being switching on again!
m
WARNING!
The rotating impeller can crush fingers.
Before any servicing and maintenance work, isolate the fan from the mains power supply and protect against
being switching on again!
– Excessive deposits of dirt, dust, grease, etc. on the impeller, motor, protection guard and, above all, between the
housing and the impeller, are not permitted, as these can lead to an unbalance in the impeller, overheating of the
motor or the blocking of the impeller. In such cases, the unit must be cleaned.
– In cases of longer periods of standstill, maintenance must be carried out when the unit is restarted.
– In case of standstill or storage for more than 2 years, the motors must be replaced.
The following must be checked:
• Secure attachment of the fan to the subsurface / system, replace in case of doubt
• Remove contaminant deposits
• Mechanical damage, disconnect unit, replace damaged parts
• Tight fit of screw connections, do not loosen screws in the process!
• Casing quality (cracks, brittleness of the plastic)
• Free movement of the impeller, impeller does not move freely, see Fault causes 8.1
Wear protective gloves when checking unhindered running of impeller!
• Bearing noises
• Vibrations – see Fault causesn 8.1
• Current consumption according to type plate – see Fault causes 8.1
8.1

Fault causes

Fault
Fan does not start
Fan does not turn
(no longer turns)
Fuse has tripped
Vibrations
Abnormal noises
Fan no longer perfor-
ming
(speed)
8.2

Standstill and disposal

WARNING
When dismantling, live parts can be exposed, which can result in electric shock if touched. Before dismant-
ling, isolate the unit from the mains power supply and protect against being switching on again!
Parts and components of the fan, whose service life has expired, e.g. due to wear and tear, corrosion, mechanical load,
fatigue and/or other effects that cannot be directly discerned, must be disposed of expertly and properly after disas-
sembly in accordance with the national and international laws and regulations. The same also applies to auxiliary
materials in use. Such as oils and greases or other substances. The intended and unintended further use of worn parts,
e.g. impellers, rolling bearings, filters, etc. can result in danger to persons, the environment as well as machines and
systems. The corresponding operator guidelines applicable on-site must be observed and used.
Causes
– No voltage
– Impeller blocked
– Motor blocked
– Mains voltage failure
– Temp. monitoring system has
triggered
– Fuse has tripped
– Impeller is blocked or
contaminated
– Shorted coil in motor
– Supply line or connection
damaged
– Connected incorrectly
– Contamination
– Attachment-related resonance
– Grinding impeller
– Bearing damage
– Mechanical damage
– Insufficient air delivery
– Incorrect voltage
– Bearing damage
– Contamination
– Insufficient backflow
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Solution
Check mains voltage
Check connection according to wiring diagram
Clear blockage, clean, replace if necessary
Contact Helios customer services
Check mains voltage
Automatic restart after cooling.
check temperature of inflow.
«Fuse has tripped»
Clear blockage, clean, replace if necessary
Contact Helios customer services
Replace parts, replace motor if necessary
(Contact Helios customer services)
Check, modify connection
Clean
Check or repair attachment
Clean impeller, replace if necessary
Contact Helios customer services
Carry out maintenance
Check/clear inflow and outflow
Check/modify connection
Contact Helios customer services
Clean
Widen backflow openings
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