Daikin Modular L Smart, Руководство по обслуживанию

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ESIE19-06 | Part 4. Maintenance 4.1. HRV unit
21/01/20 | Version 1.1 Page 53
Modular L Smart
• After cleaning make sure that you have not damaged the electrical parts and the seals.
• Cleaning operations should not involve the lubricated parts, like rotation shafts, because this could affect their good operation
and create problems with durability.
• For the cleaning of finned components or dampers use an industrial vacuum cleaner and/or a compressor. Attention, the
compressed air flow must run opposite to the direction of airflow through the unit.
4.1.2.1.1 Cleaning lamellar components
Remove the dust and fibres with a soft bristle brush or a vacuum cleaner.
Oils, solvents, etc. can be removed with water or hot grease solvents, by washing or immersion.
Periodically clean the condensate drain tray and fill the drain siphon with water.
4.1.2.1.2 Vents
Periodically check that there are no new sources of contamination near the air intake. Each component must be checked
periodically for the presence of contamination, damage and corrosion. The seal can be protected with glycerine-based lubricants
or replaced with a new one, if worn.
4.1.2.1.3 Exchange coils
The coils must be cleaned at the slightest sign of contamination.
The coil should be cleaned and washed gently to avoid damaging the fins.
For cleaning using a mild detergent suitable for the purpose. Do not use alkaline, acidic or chlorine-based solutions.
THE coils can be washed with a slightly pressurised water jet (max. 1.5 bar). The jet must NOT contain chemicals or
microorganisms. Also the water must be sprayed in the opposite direction to the air flow.
For the direct expansion system, all the coolant in the coils must be collected in the receiver before washing the coil with water.
This makes it possible to avoid the increase of the pressure and damage to various parts of the pipe, keeping the airflow clean.
For pertinent accessories, refer to the enclosed documentation.
4.1.2.1.4 Fans
The fans can be cleaned with compressed air or by brushing them with soap and water or with a mild detergent.
Finish the cleaning by rotating the fan by hand to verify the absence of abnormal noises.
4.1.2.1.5 Cleaning filters
The filters must be cleaned often and carefully to prevent dust and microbial buildup. Usually, compact filters can be cleaned two
or three times before they are replaced. As a general rule, replacement is required after 500-2000 hours of operation (it varies
depending on the type of filter, refer to the directions of the manufacturer), but may need to be replaced much sooner if required.
Compact filters can be cleaned using a vacuum cleaner or by blowing with compressed air or hot water (not under pressure).
Only for versions with up-and-over doors: if the opening of the doors was difficult because of the narrowness of the available space,
it is possible to remove them by unscrewing the screws that hold the hinges.
At the end of cleaning, it is mandatory to remount the doors.
W
ARNING
Be careful when cleaning with compressed air because the exchanger package can be damaged.
CLEANING with pressure jets is allowed if the maximum water pressure is 3 bar and a flat nozzle is used (40° - WEG
40/04 type).
W
ARNING
The machine must NOT be running when the filters are removed to avoid drawing in outside air that might be contami-
nated.