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200SE-2S - 300SE-2S
6.5
Descaling
6.6
Removing and remounting the inspection hatches
26/04/2016 - 7607575-05
In regions with hard water, annual descaling of the appliance is
recommended in order to maintain its performance.
1. Remove the inspection hatches.
¼ See chapter: "Removing the inspection hatches", page
57.
2. Check the magnesium anode each time the hatch is opened.
¼ See chapter: "Checking the magnesium anode", page 56.
3. Remove limescale deposits in the form of sludge or strips in the
bottom of the tank. On the other hand, do not touch limescale
adhering to the walls of the tank as it provides effective protection
against corrosion and improves the insulation of the DHW
calorifier.
4. Remove limescale deposits from the exchanger to guarantee its
performance.
5. Fit the unit together.
¼ See chapter: "Remounting the inspection hatches", page
58.
CAUTION
To guarantee tightness, the gasket unit must be replaced
each time the hatch is opened.
Use a new lip gasket and retainer ring for the top
4
inspection hatch.
Have a new gasket on hand for the side inspection
4
hatch.
6.6.1.
Removing the inspection hatches
1. Turn off the domestic cold water inlet.
2. Drain the calorifier.
The domestic cold water inlet is also the drain opening.
3. Remove the inspection hatches.
6. Checking and maintenance
57
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