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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 (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. Vacuum cleaning is allowed. After two consecutive cleanings
filters must be replaced. For new filters, contact the Seller.
To clean or replace the filters, detach the removable plates located
on the service side of the unit. After cleaning install the filters and
the detachable plates in the reverse order.
2. Heat exchanger maintenance (once per year).
Some dust may accumulate on the heat exchanger even in case
of regular maintenance of the filters. To maintain the high heat
recovery efficiency, regular cleaning is required.
The heat exchanger is connected with the drain pan by the fixing
bands that should be removed only in case of heat exchanger
replacement.
The drain pan is fixed to the unit casing using three screws.
To clean the heat exchanger pull it and the drain pan out, drain the
water through the pipes, then flush the heat exchanger with warm
detergent solution. After cleaning install the dry heat exchanger
with the drain pan back to the unit.
DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE
ANY MAINTENANCE OPERATIONS!
TECHNICAL MAINTENANCE
