16
AT 1200 HB(E/E2) EC
TECHNICAL MAINTENANCE
Maintenance operations of the unit are required 3-4 times per year. They include 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. Clean the filter with a vacuum cleaner or replace it with a new
one. To clean the filters, remove them from the unit. For new filters,
contact the Seller.
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 e
ffi
ciency, 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.
3. Fan maintenance (once per year).
Even in case of regular maintenance of the filters, some dust may
accumulate inside the fans and reduce the fan performance and
supply air flow.
To access the fans, remove the protection plates (secured with the
screws).
Clean the fans with a soft cloth, brush, or using compressed air.
Do not use water, aggressive solvents, or sharp objects as they
may damage the impeller.
4. Ductwork system maintenance (once in 5 years).
Even regular fulfilling of all the maintenance operations prescribed above may not completely prevent dirt accumulation in the air ducts,
which leads to air pollution and reduces the unit capacity. Duct maintenance means regular cleaning or replacement.
DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE ANY MAINTENANCE
OPERATIONS!
MAKE SURE THE UNIT IS DISCONNECTED FROM POWER MAINS BEFORE REMOVING THE
PROTECTION
