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• Panel Filter (G3-G4)
• Bag Filter (M5-M6-F7-F8-F9)
• Rigid Bag Filter (M5-M6-F7-F8-F9)
• Metallic Filter
• Carbon Filter (Cartridge, Panel)
7.2.1 Initial Start-up
All filters are mounted in filter frames with class F9 efficiency according to results of EN 1886 filter
leakage testing.
It is recommended that filters be checked and monitored for fouling using pressure differential switches.
7.2.2 Maintenance
It is recommended that filters be checked every three months. fouling alarms should be checked and
monitored on a weekly basis. The recommended filter replacement pressure values are given in Table 6.
Recommended Replacement
Pressure Value
Table 6 Filter Replacement Pressure Values According to EN 13053
Contact with the dust on the filter may cause various respiratory conditions. For this reason,
protective masks, gloves, and safety goggles must be used during maintenance.
Periodical Maintenance on the Air Filter:
• Check whether filters conform to hygiene standards, and check for accumulated dust,
corrosion, and damages.
• Check the filter pressure differences on the pressure differential switch.
• Check the filter seal and rail system for leakages.
• It is strongly recommended that filters be replaced once a year, even if they have not
reached fouling limits.
WARNING: PANEL FILTERS MUST BE INSTALLED ON THE UNIT DURING THE INITIAL START-UP OF
THE AIR HANDLING UNIT!
IT IS RECOMMENDED THAT BAG FILTERS BE INSTALLED FOLLOWING INITIAL START-UP.