Installation Instructions
12
Brig HRV 120 (170)
SERVICING AND MAINTENANCE
Servicing of the unit is required 3-4 times per year. Besides general cleaning, the following
operations are required:
1. Filter maintenance (3-4 times per year).
Dirty lters increase air resistance in the system and reduce supply air ow to the premises.
Clean or replace the lters as often as required, but at least 3-4 times per year.
Clean the lter with running water or a vacuum cleaner.
Contact your local supplier for new lters.
2. Heat recovery core maintenance (once per year).
Some dust can get accumulated on the heat recovery core block even if you clean or replace
the lters regularly in compliance with above procedure. To maintain the high heat exchange eciency,
pull out and clean the heat recovery core with warm detergent solution. Re-install the dry heat recovery
to the unit.
3. Fan maintenance (once per year).
Even if you perform regular maintenance of the lters and the heat recovery core, some dust
and grease can get accumulated inside the fans and reduce the fan performance and supply air ow.
Clean the fans with a soft brush or dry cloth. No water and abrasive detergent, sharp objects
or solvents are allowed for cleaning to prevent the impeller damage.
4. Condensate drainage system maintenance (once per year).
The drain hose can get clogged with the extracted particles. Clean the drain hose is required.
Check proper functioning of the drain system by pouring some water into the drain pan at the unit
bottom. Clean the U-trap and the drain tubes if required.
5. Supply air ow inspection (twice per year).
Leaves and other objects can clog the intake grille and decrease the unit performance and
supply air ow. Check the intake grille twice per year and clean it if required.
6. Air ductwork maintenance (once in 5 years).
Even if you fulll all the above maintenance guidelines regularly, a certain amount of dust is
accumulated inside air ducts. That reduces the ventilation system performance. Clean or replace the air
ducts periodically.