9.2.2 Rotary heat exchanger, cleaning
Personnel:
Skilled qualified electrician
Tool:
Commercially available vacuum cleaner
Compressor with blow-out gun
1.
DANGER!
Danger of electric shock! Do not touch any
live components! Electrical equipment carries
a dangerous electrical voltage.
–
Switch off the power supply before you
carry out maintenance or cleaning.
–
Only skilled qualified electricians are
allowed to work on the electrical system.
Switch off the supply voltage and secure it against
being switched on accidentally before working on
the unit.
The counter flow function is usually sufficient
to keep the heat recovery unit clean. Should
this self cleaning not suffice, you may clean the
heat recovery unit with compressed air; intervals
depend on the degree of contamination. In the
event of heavy contamination or a defect, the
rotary heat recovery unit can also be dismantled.
2.
Open the lower inspection access door.
3.
Remove the extract air filter,
.
4.
Vacuum the fins of the rotary heat exchanger with
a vacuum cleaner (with a soft brush attachment).
5.
Blow out the fins with a blow-out gun.
6.
Remove contamination in the ventilation unit with
a commercially available vacuum cleaner. Also
vacuum out the area behind the heat exchanger.
7.
Reinsert the extract air filter.
8.
Close the lower inspection access door.
9.
Switch on the power supply.
ð
The rotary heat exchanger is cleaned.
Maintenance
Maintenance > Rotary heat exchanger, cleaning
Decentralised ventilation units SCHOOLAIR-S-HV
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