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water solution. Let the heat recovery core dry out and re-install it into the unit.
1b.
2b.
3b.
4b.
!
3.
Fan maintenance (once per year).
Regular filter and heat recovery core maintenance may not completely prevent dust ingress into the unit fans. Clogged filter
reduce supplied air volume to the room.
Clean the fans with a soft cloth or a brush. No water and abrasive detergent, sharp objects or solvents are allowed for cleaning to
prevent the impeller damage.
4.
Drain line maintenance (once per year).
The drain line may get clogged by extracted particles. Check the drain line functioning by filling the drain pan with water and
clean the drain line if required.
5.
Air ductworks maintenance (once in 5 years).
If degraded performance is still noticeable after following all maintenance guidelines it is
recommended that the ductwork be checked and cleaned if necessary.
6.
Inspection of exhaust louver shutters and supply diffusers (as required).
Remove the disc valves and the louver shutters and wash those with warm detergent solution. Do not change the positions of the
disc valves and the louver shutters.
