Servicing And Maintenance; Cleaning; Fan Casing With Inspection Opening (Optional); Repair Work - Helios B AMD Série Notice De Montage Et D'utilisation

Installation and Operating Instructions
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CHAPTER 4
SERVICING AND
MAINTENANCE
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WARNING
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ATTENTION
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ATTENTION
Meduim-Pressure Axial Smoke Extraction Fans – B AMD F300/F400
4 .0

Servicing and maintenance

m WARNING
Before any maintenance or inspection work or before opening the terminal compartment, the device is to be
fully isolated from the power supply and secured against unintended restart!
– Excessive deposit of dirt, dust, grease and other materials on the impeller, motor and safety grille especially between
casing and impeller is to be avoided and has to be prevented by periodical cleaning.
– A functional test must be carried out max. six-monthly intervals, and upon recommissioning in case of longer periods
of standstill.
– Maintenance must be carried out once annually, otherwise upon recommissioning.
– Servicing and maintenance work must only be carried out by specialists according to section 1.6.
– Perform maintenance based on maintenance plan in section 7.
– Please check:
• Screw connections, particulaly impeller fastening. Without loosening screws!
• Casing-/ impeller surface coating (e.g. rust, paint damage)
• Bearing noises
• Damages
• Vibrations
• Deposits of dirt
• Current consumption
• Function of the safety components
• Motor lubrication/motor bearing
Motors with lubrication nipples must be lubricated according to the information on the motor type plate.
Types F300/400: Ensure relubrication option on-site, the motor type plate must be observed!
Motors with relubrication device must be lubricated according to the information on the motor type plate!
Only specified lubricants are permitted!
– It is recommended to perform a system maintenance book and enter the tests and test results carried out. Compare
the results with the results of previous audits. If the parameters vary, you should always contact the manufacturer.
– The instructions in the maintenance manual of the electric motor manufacturer must be observed!
– The smoke extraciton fan must be disposed of after smoke extraction operation!
Continued use is not permitted in any case!
4 .1

Cleaning

m WARNING
An insulation fault can give you an electric shock!
The fan must be fully isolated from the power supply and secured against restarting before cleaning!
– Clean fan flow area, impeller, struts and motor.
– Regular inspection, with periodic cleaning if necessary is required to avoid imbalance due to contamination. Clean fan
flow area.
– Do not use aggressive cleaning agents!
– High pressure cleaners or water jets are not permitted!
4 .2 Fan casing with inspection opening (optional, depends on respective type)
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– The rotating impeller can sever or trap your fingers/arms!
– Operation only with mounted safety fittings!
– Risk of damage!
– Do not insert objects into the rotating impeller!
Inspection opening may only be opened after deactivation and coasting of fan!
Do not open the inspection opening during operation and never reach into the activated fan. The impeller will continue
to rotate and coast after deactivation of the unit. Furthermore, the run-on time must be observed and it must be ensu-
red that all moving parts have come to a standstill before opening vthe inspection opening.
Close the inspection opening before re-activating the fan and check screws for tight fit.
4 .3

Repair work

Repair work on the smoke extraction fans must only take place at the factory by returning the unit!
Contact Helios customer service.
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