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10 - OPERATION AND MAINTENANCE
10.1 - General recommendations for cleaning
To disinfect, use cleaning products which are compatible with the list of disinfectants approved by RKI (Robert Roch Institute) or
VAH (Verbund für Angewandte Hygiene). Respect the contact times and concentrations indicated by the manufacturer.
■ Do not use flammable products
■ Do not use a sponge or abrasive tool
■ Clean the gaskets for the doors and access panels
■ It is recommended to comply with the maintenance requirements according to the VDI 6022 standard (table 8)
10.2 - Filters
10.2.1 - Periodic maintenance
■ Every 3 months
■ Every month for ATEX units
■ Follow the instructions given in section 10.1 General recommendations for cleaning
Warning!
Follow the safety instructions (see § 2 - SAFETY INSTRUCTIONS).
■ The filter cells are flammable products, and the fire risk may increase depending on the elements filtered by the medium. Keep the
filters away from flames.
■ Mounting, cleaning and replacement of filters pose risks of allergies and irritation of the skin, airways and eyes. When working on
the filters, always use suitable Personal Protective Equipment.
■ The filters should be checked regularly depending on the operating conditions.
Severe fouling of the filters may pose risks to the health of occupants or the production processes.
■ Maintenance phases:
1. Check the condition of the filters (fouling level, tearing, corrosion), and the sealing gaskets (except for assembly with bare runners),
Warning: Even if no clogging is visible, mould or bacteria may still be present,
2. Check for mechanical jamming of the filters,
3. Clean all the components upstream of the filters and the duct networks,
4. Clean the filter support frames,
5. Check the operation of the pressure drop measuring instruments,
6. Clean the inside of the filtration box. Remove any impurities using a vacuum cleaner and/or a cleaning product,
7. Make sure there are no foreign objects inside the box,
■ Replacing the filters:
- Once the maximum pressure drop recommended by the manufacturer has been reached (See the table in section 9.3 Filters).
- In case of excessive leaks, damage or corrosion,
- In case of odours, spare cells can be ordered from the unit manufacturer's distribution network. Only original parts guarantee
optimal operation.
■ When replacing filters:
- Take care not to damage the gaskets when disassembling fouled filters,
- Clean all the components upstream of the filters and the duct networks,
- Clean the filter support frames,
- Match the original technical and dimensional specifications of the filter cells,
- Check the filters. New filters have an expiry date, which must be observed,
- Refit the new filters and lock with the runners or the hooks depending on the assembly,
- Clean the inside of the filtration box. Remove any impurities using a vacuum cleaner and/or a cleaning product,
- Make sure there are no foreign objects inside the box.
■
Disposal of filters:
- Depending on the filtration environment, the filter cells may be considered as special waste, and must comply with environmental
and health regulations in force at the installation site.
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