The unit requires maintenance works 3-4 times per year. Maintenance includes regular
cleaning and the following operations:
1. Filter maintenance.
Contaminated filters increase air resistance in the system and reduce supply air volume.
Clean the filters once in 3-4 months. Clean the filters with a vacuum cleaner or replace with
a new filter after two cleanings (once or twice per year). Contact the Seller for spare filters.
2. Heat exchanger maintenance (once a year).
Even regular technical maintenance of the filters as in clause 1 may not completely
prevent dirt accumulation on the heat exchanger casing. Clean the heat exchanger on a
regular basis to ensure high heat recovery efficiency. Wash the heat exchangers with
warm neutral detergent solution.
3. Fan maintenance (once a year).
Even regular technical maintenance may not completely prevent dirt accumulation in the
fans which reduces the fan capacity and impairs supply air delivery into the premises.
Clean the fans with a soft sloth or a brush. Do not use water, aggressive solvents or sharp
objects as they may damage the impeller.
4. Condensate drain check (once a year).
The condensate drain (line) may get clogged by dirt and dust particles contained in the
extract air. Check the drain line operation by filling the drain pan under the unit with water,
clean the U-trap and the drain line, if necessary.
MAINTENANCE
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VUT EH EC
VUT EH EC