Dieta MI-MX, Руководство пользователя, Страница: 149 / 152

DIETA MI-MX user manual 5/2019 • Page EN-149
Tap water contains calcium oxide and calcium carbonate which form lime build-up on the
heating elements and inside the steam generator. Lime build-up prevents heat flow from the
heating element to the water - heating requires more energy, heating elements get too hot
inside and may break. Decalcification and flushing the steam generator a couple of times a
year may reduce kettle heating problems considerably.
Hardness ˚dH
< 2 decalcification not usually needed
2 - 5 decalcification once a year
6 - 8 decalcification 1 ... 4 times a year, water softener recommended
> 8 water softener required
Decalcification
Decalcification can be done by anyone, if the kettle has (optional) water filter installed in the
incoming water line. Note chemical safety.
1. Shut down the kettle. Let cool.
2. Open jacket emptying valve, located at the bottom right of the kettle front panel. Let all
the water run out. Shut the valve.
3. Open aux leg doors. Shut main water valve. Open water filter and remove the cartridge. Put
decalcifier into the filter cup according to need. Rescrew the cup. Open main water valve.
MIND THE INSTRUCTIONS FOR THE CHEMICAL.
4. Start up the kettle. Start heating.
The kettle fills the generator automatically. If the decalcifier is to be used cold, stop
heating immediately when you hear the power relays to start heating - or water filling to
stop. Otherwise let heat up to 70...90°C (jacket temperature) before stopping. Let the liquid
be in the kettle as long as recommended by the chemicals manufacturer.
The kettle is not harmed (acid proof stainless steel).
5. Open the bottom valve of the kettle and let all water out. Close the main water valve and
open again the filter. Rinse the cup clean, replace the cartridge - or fit a new cartridge.
Screw the cup back to the filter body and open the main water valve.
6. Start heating and wait until the water filling stops or heating starts. Stop heating and
empty the generator opening the bottom valve. Do this 1-2 times again to rinse the
generator properly.
Decalcifier liquid needed:
Kettle 40 ... 80 1,5 liters
Kettle 100 ... 200 2,5 liters
Kettle 300 4 liters
Flushing the steam generator
1. Shut down the kettle. Let cool.
2. Open bottom valve in the bottom of the kettle (see previous page). Let water run out.
3. When all the water has come out, start heating pushing the COOK button. Water flushing
starts. Check occasionally the outcoming water quality (take some water to a GN
container). When the water looks clean, stop heating and close the emptying valve.
DECALCIFICATION