Nordmann Engineering Omega 12, Руководство по эксплуатации

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7.5 Notes on cleaning the unit components
Unit component What to clean and how to clean
Steam tank / steam tank strainer • Carefully knock off any limescale from the components.
If the components are heavily calcified, place them in
an 8% formic acid solution ( observe safety notes in
chapter 7.6 ), until the limescale comes off.
• Wash components with a lukewarm soap solution, then
rinse well with tap water.
Steam tank cover and
Heating elements
• Immerse cover with heating elements fitted to 2 cm
below the rim of the cover in a container with 8% formic
acid ( observe safety notes in chapter 7.6 ). Allow the
acid to take effect until the scale coating on the heating
elements 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.
• Carefully remove any limescale underneath the cover
and on the thermostat(s) with a soft bristled brush (do
not use a wire brush). The thermostat(s) must be free
of limescale.
Hoses • Remove any limescale by slightly knocking on the tubes
using a rubber hammer or with a soft bristled brush (do
not use a wire brush). Then, rinse the tubes well with
hot tap water.