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TECHNICAL MAINTENANCE
DISCONNECT THE UNIT FROM POWER MAINS PRIOR TO ANY MAINTENANCE OPERATIONS.
Maintenance operations of the unit are required 3-4 times per year. Maintenance includes general cleaning of the unit and the following
operations:
1. Filter maintenance:
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.
On elapsing of 3,000 operating hours the unit controller generates the filter replacement or cleaning alert. Clean or replace the filters and
reset the hour meter.
Vacuum cleaning is allowed. After two consecutive cleanings filters must be replaced. For new filters contact the Seller.
Sequence of filter removal:
1. Disconnect the unit from power mains.
2. Undo the screws securing the service panels in place.
3. Remove the side panels.
4. Pull the filters to remove.
5. Replace the filters in the reverse order.
1.
2.
3.
SEQUENCE OF FILTER REMOVAL
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 recovery
efficiency, regular cleaning is required. To clean the heat exchanger remove it from the unit and clean the heat exchanger by using compressed air
or a vacuum cleaner. After cleaning re-install the heat exchanger into the unit.
CLEAN THE UNIT CAREFULLY SO AS NOT TO DAMAGE THE HEAT EXCHANGER CELLS.
1. Disconnect the unit from power mains.
2. Undo the screws securing the service panels in place.
3. Remove the side panels. Then unscrew the angle pieces securing the heat
exchanger (except VUT R 400 WH EC ).
4. Unplug the connector to the heat exchanger motor and remove the
grounding terminal.
5. Pull the heat exchanger and remove it from the unit.
6. Install the heat exchanger in the reverse order.
