Operation Manual

66 Maintenance
Unit component What to clean and how to clean
Drain cup
• Use a soft bristled brush (do not use a wire brush) to
remove any limescale from the drain cup and its con-
nectors.
If the drain cup is heavily calcied, place it in an 8%
formic acid solution (observe safety notes in chapter
6.6), until the limescale comes off.
• Wash the drain cup and the receptacle on the bottom
side of the unit with a lukewarm soap solution, rinse the
parts well with tap water.
Steam cylinder receptacle
• Remove any limescale from the cylinder receptacle and
its connectors using a soft bristled brush (do not use a
wire brush).
If the cylinder receptacle is heavily calcied, place it in
an 8% formic acid solution (observe safety notes in
chapter 6.6), until the limescale comes off.
• Wash the cylinder receptacle with a lukewarm soap
solution and rinse well with tap water.
Interior of the unit
(water side only)
Wipe the interior of the unit with a damp cloth without using
any cleaning agent.
CAUTION: Take care that the electrical connections and
the electronic components remain dry!
6.6 Notes on cleaning agents
Only use cleaning agents stated in the table above. The use of disinfectants is only permitted if they
do not leave any toxic residues. In any case the parts must be thoroughly rinsed with clean drinking
water after cleaning.
WARNING!
Formic acid is indeed harmless to the skin, but it attacks the mucous membranes. Therefore prevent
your eyes and respiratory tracts from getting in touch with the acid and its vapours (wear goggles and
work in a well ventilated room or outside).
CAUTION!
Donotuseanysolvents,aromatizedorhalogenizedhydrocarbonsorotheraggressivesub-
stances as they may cause damage to the components of the unit.
It is mandatory to observe and comply with the information and instructions regarding cleaning agents.
Observe in particular: all information relating to the protection of personnel, environmental protection
and restrictions regarding usage.