10. Maintenance Instructions
10.1 Filter Maintenance
WARNING
Heat recovery units, by their very nature, require regular maintenance. The Duplexvent BV400
has been designed to facilitate easy access to enable maintenance to be carried out.
Note:
The heat exchanger will be damaged if the unit runs without the filters.
In the Duplexvent BV400, both supply and exhaust air streams are filtered through G4 class
course filters. The filters should always be kept in place when the ventilation unit is in operation.
To prevent the contamination of this ventilation system, to guarantee years of trouble-free
operation and ensure that clean air is supplied into your home the filters must be periodically
cleaned or replaced (depending on contamination of the outdoor air).
Step 1:
Slide the service cover to the left, open it and remove the filters.
Step 2:
Use a vacuum cleaner to clean the dust from the air filter. If necessary, use warm water
with detergent to remove the persistent dirt. Leave the filters to dry before placing them
back in the unit.
THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED
FROM THE POWER SUPPLY DURING MAINTENANCE.
Vacuum Cleaner
Filter
Remove the Filters
Open the
Service Cover
Slide the
Service Cover Left
Danger
Electric Shock
risk
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