Helios SilentBox SB Serie Notice De Montage Et D'entretien page 23

Installation and Operating Instructions
CHAPTER 8
SERVICING AND
MAINTENANCE
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DANGER
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WARNING
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WARNING
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Centrifugal Fan Boxes – SilentBox
– Types SBD 315 A
Fig. 11
92994 001 SS-860 24.05.06
8.1 Servicing and maintenance
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DANGER!
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!
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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" 8.2.
Wear protective gloves when checking unhindered running of impeller!
• Bearing noises.
• Vibrations – see „Fault causes" 8.2.
• Current consumption according to type plate – see „Fault causes" 8.2.
® SB ...
TK TK L1 L2 L3
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SS-860
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EN