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10 - OPERATION AND MAINTENANCE
■ For drain pan option:
- Clean and disinfect the drain pans with a suitable product.
■ For siphon option:
- The siphon must be activated during commissioning, or after each period of prolonged downtime.
- The siphon level must be checked periodically.
- Operation without condensation may result in evaporation of the water contained in the siphon.
- Clean and disinfect the siphon with a suitable product.
10.8 - Sound attenuator
Warning!
Follow the safety instructions (see § 2 - SAFETY INSTRUCTIONS).
■ Frequency:
- Every three months
- Every month for ATEX units
- Follow the instructions given in section 10.1 General recommendations for cleaning
■ Cleanliness is a determining factor in the efficiency of sound attenuators:
- Make sure the sound attenuator box is clean and free from foreign objects. Remove any impurities using a vacuum cleaner and/
or a cleaning product.
- Clean the baffle surfaces without damaging the fabric covering the rock wool. Warning: this fabric is fragile and a maintenance
vacuum cleaner may be too powerful. It may be sufficient to wipe the baffles with a cloth.
- Check for corrosion on the baffle frames and inside the box.
- Replace the baffles if they are worn, or if the protective fabric is torn.
10.9 - Heat recovery units
10.9.1 - Plate heat exchanger
10.9.1.1 - Plate recovery unit maintenance
Warning!
Follow the safety instructions (see § 2 - SAFETY INSTRUCTIONS).
■ Frequency:
- Every three months
- Every month for ATEX units
- Follow the instructions given in section 10.1 General recommendations for cleaning
■ Cleanliness is a determining factor in the efficiency of the unit:
- Check the condition of the plates and the fouling level, and for any corrosion or damage.
- Remove any impurities using a vacuum cleaner and/or a cleaning product.
- The plates are only a few tenths of a millimetre thick. Do not use tools, screwdrivers, knives or abrasives for cleaning.
- Cleaning with water is only authorised if a condensate pan is present.
- Remove any deposits of oil or grease using hot water with a detergent added to dissolve the grease.
■ The siphon level must be checked periodically. Operation without condensation or prolonged downtime may result in evaporation
of the water it contains.
- Clean and disinfect the siphon with a suitable product.
- Make sure any pressure and temperature sensors are operating correctly.
- Clean and disinfect the drain pans with a suitable product.
- Cleaning and maintenance of bypass dampers, refer to section 10.6 - Mixing and dampers.
10.9.2 - Rotary heat exchangers
10.9.2.1 - Rotary heat exchanger maintenance
Warning!
Follow the safety instructions (see § 2 - SAFETY INSTRUCTIONS).
■ Frequency:
- Every three months
- Every month for ATEX units
- Follow the instructions given in section 10.1 General recommendations for cleaning.
■ The siphon level must be checked periodically. Operation without condensation or prolonged downtime may result in evaporation
of the water it contains.
- Clean and disinfect the siphon with a suitable product.
- Clean and disinfect the drain pans with a suitable product.
■ Check without disassembling the wheel
- Cleanliness is a determining factor in the unit's performance, therefore check the condition of the fins, the fouling level, the
corrosion level and for any damage.
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