Maintenance - Harvia Nova SWA20U1XA Instrucciones De Instalacion Y Uso

EN

MAINTENANCE

Steam generator maintenance
Maintenance indicator light starts blinking when 200 hours has passed from the previous service. You can
adjust the time in the SET6 menu.
Before maintenance, unplug the device and close the water shut-off valves!
User can perform the following maintenance operations:
• cleaning the water level sensor
• decalcification
All other maintenance must be left to professional maintenance personnel.
Steam generators in community, institution and such use must be serviced thoroughly at least twice a year (checking
EN
and cleaning the reservoir, heating elements and the water level sensor).
Water quality requirements
Water properties
Humus concentration
Iron concentration
Manganese (Mn) concentration
Hardness: most important substances are
magnesium (Mg) and lime, i.e. calcium (Ca)
Chloride-containing water
Chlorinated water
Seawater
Arsenic and radon concentration
Cleaning the water level sensor
Remove any limescale by wiping or, if necessary, sanding with fine sandpaper. Remove the steam nozzle by turning it
counterclockwise. First, remove the protective caps of the mounting screws of the glass and then remove the screws.
Remove the glass carefully. Loosen the nut of the water level sensor and clean the sensor.
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Effect
Colour, taste, precipitates
Colour, odour, taste, precipitates
Colour, odour, taste, precipitates
Precipitates
Corrosion
Health risk
Rapid corrosion
Health risk
Recommendation
<12 mg/l
<0,2 mg/l
<0,10 mg/l
Ca: <100 mg/
Cl: <100 mg/l
Forbidden to use
Forbidden to use
Forbidden to use