Operation Manual
64 Maintenance
6.5 Notes on cleaning the unit components
Unit component What to clean and how to clean
Scale collector tank
• Dump any lime in scale collector tank, then carefully
knock off any limescale inside scale collector tank and
on the strainer insert.
If the scale collector tank heavily calcied, ll scale collec-
tor tank with an 8% formic acid solution (observe safety
notes in chapter 6.6), until the limescale comes off..
• Wash scale collector tank with a lukewarm soap solu-
tion, then rinse well with tap water.
Steam cylinder / steam cylinder insert
• Carefully knock off any limescale from the components.
If the components are heavily calcied, place them in
an 8% formic acid solution (observe safety notes in
chapter 6.6), until the limescale comes off.
• Wash components with a lukewarm soap solution, then
rinse well with tap water.
Heating elements
• Immerse cover with heating elements tted to 2 cm below
the rim of the cover in a container with 8-percent formic
acid (observe safety notes in chapter 6.6). Allow the
acid to take effect until the scale coating has dissolved.
Note: The heating elements do not have to be entirely
free from scale.
• Rinse heating elements thoroughly with fresh water.
CAUTION! Ensure that the electrical connections re-
main dry.
CAUTION! On no account remove scale coating on the
heating elements with tools (screwdriver, scraper, etc.)
or by striking. This could damage the heating elements.