Vents VUT 1000 H User Manual - page 13
13
MAINTENANCE
The unit must undergo technical maintenance 3 to 4 times a year. Maintenance includes general cleaning of the unit and the following
operations:
1. Filter maintenance (3-4 times per year).
Dirty filters increase air resistance in the system and reduce supply air volume. The filters require cleaning not less than 3-4 times per
year. Clean the filters with a vacuum cleaner or replace them. For new filters contact your Seller.
2. Heat exchanger maintenance (once per year).
Some dust may accumulate on the heat exchanger block even in case of regular maintenance of the filters. To maintain the high heat
exchange efficiency, regular cleaning is required. To clean the heat exchanger pull it out, flush the heat exchanger with warm detergent
solution. After cleaning install the dry heat exchanger back to the unit.
To remove the filters and the heat exchanger proceed as follows:
make sure the unit is disconnected from power mains;
undo four clips that fix the front panel from the service side (refer to para. 1), remove the panel (refer to para. 2).
remove the filters (refer to para. 3).
remove the heat exchanger (refer to para. 4).
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3. Fan maintenance (once a year).
Even regular technical maintenance of the filters may not completely prevent dirt accumulation in the fans which reduces the fan ca-
pacity. Clean the fans with rugs or a soft brush. Do not use water, aggressive solvents or sharp objects as they may damage the impeller.
4. Technical maintenance of condensate drainage system (once a year).
The condensate drainage (drain line) may get clogged by dirt and dust particles contained in the exhaust air. Check the drain line opera-
tion by filling the drain pan under the unit with water, clean the U-trap and the drain line, if necessary.
5. Technical maintenance of the supply grille (twice a year).
The supply duct grille may get clogged with leaves and other objects reducing the unit performance and supply air delivery. Check the
supply duct grill twice a year and clean it as required.