Keller AmbiCube, Operating Manual

Page: 31 / 40

10.7 Check the unit for unusual running noises
u
Check the unit acoustically for unusual running noises. In case of unusual run-
ning noises, see chapter Unusual running noises [
}
Page 25] .
10.8 Check filter resistance
ü
The room air cleaner is in operation.
u
Read the indicated filter resistance on the manometer on the front of the room
air cleaner.
Selector switch room air cleaner On / Off
Manometer filter resistance Potentiometer for speed of fan
Illustration 19: Detail view of the control unit of the room air cleaner
Ä
If the displayed value is more than 8.5 mbar, the filter elements must be re-
placed. See Chapter Check filter elements for impermissible contamina-
tion, odors and damage [
}
Page 31] .
Ä If the displayed value is less than 8.5 mbar, no further action is required.
10.9 Check filter elements for impermissible contamination,
odors and damage
WARNING
Health hazard due to lack of protective equipment
Damage to health by inhalation of whirled-up dust or by contact
with the separated substances.
u Wear suitable protective equipment, at least a breathing
mask and gloves.
The filter elements clog up with the extracted particles and aerosols during opera-
tion and must be checked regularly for impermissible contamination, odors and
damage and replaced if necessary. For the replacement of the filter elements we
recommend to wear appropriate protective equipment. After removing the clogged
filter elements, they must be packed in plastic bags and, if possible, made airtight.
The filter elements packed in this way can then be disposed of with the standard
household waste.
Procedure:
ü
Appropriate protective equipment, at least a breathing mask and gloves are
available and are worn.
ü
New filter elements are available for both filter stages.
Operating Manual AmbiCube
Maintenance
Page 31 of 40 Version: 2 | en
Subject to technical changes