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Jakka JRH72N Series User Manual page 11

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MAINTENANCE
NOTE
JAKKA Controllers for this units have a preset timer to monitor filter occupancy
according to factory set timer. Remote controller informs the user to check the
filters. After the filters are cleaned by the user, filter warning alarm must be reset.
Clean the filter with a vacuum cleaner. To remove dense dust build-ups, prepare
a solution with cold water and natural detergent or soap powder and submerge
the filter in the solution. Later pull out the filter from the solution and leave it to dry.
In any case, do not scrub or apply force on the filter material. After it is completely dry,
mount the filter to the unit, close the service door and tighten the screws thoroughly.
NOTE
It may be handy to keep spare clean and dry filters for quick replacement of dirty filters
to minimize unit downtime for filter maintenance.
Exchanger Maintenance
For best performance, clean up the air exchanger periodically.
If the filters are maintained regularly, clean exchanger at least once in every two years.
HOW TO ACCESS EXCHANGER
To open the service cover that is located on the bottom side of unit, unscrew and
STEP 1
remove out 4 screws that secure the heat recovery exchanger service cover.
STEP 2
While performing removal of service cover make sure heat recovery exchanger
does not fall down.
Vacuum Cleaner
Filter
9
Recuperator

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