Bedienungsanleitung Austria Email EHT serie (Seite 26 von 44) (Deutsch, Englisch, Italienisch)

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Electric Water Heater EHT - 50, 80, 100, 120, 150 litres Id. Nr.: 246502-10

INSPECTION, MAINTENANCE, SERVICE

a) During heating, the expansion water must drip visibly from the drain of the safety valve. The expansion water

quantity is approx. 3.5% of the tank’s rated volume when fully heated (approx. 80 °C).

The function of the safety valve must be checked regularly. The water must ow freely from the safety valve

unit into the drain funnel when the safety valve test knob is lifted or turned to the “Test” position.

Caution: the cold water supply and parts of the storage tank connector ttings may become hot thereby.

If the water heater is not heated up or hot water is withdrawn, no water must drip from the safety valve. If this

is the case, then either the water line pressure is too high (install pressure reducing valve over 5.5 bar) or the

safety valve defect. Please call a plumbing expert immediately!

b) The boiler scale as well as the furring forming in the internal boiler of the tank must be removed by an expert

after one to two years of operation in the case of heavily calciferous water.

Cleaning is performed through the ange opening. De-install heating ange, clean tank; a new seal must

be used in any case when the heating ange is mounted. The internal tank of the water heater with special

enamelling must not get in contact with boiler scale solvents – do not use an anti-liming pump. Remove lime

deposits with wood and aspirate or wipe out using a cloth.

Then rinse the device thoroughly (in accordance with ÖNORM H5195-1) and observe the heating pro-

cess in the same way as during rst commissioning.

c) In order to ensure a corrosion protection and be entitled to any claims for warranty, as provided on the

side of the manufacturer, the installed magnesium anode requires checking by an expert at intervals

of max. 2 years of operation (DIN 4753 Part 3). The guard circuit shunt resistor below the heating unit

fastening screw must not be damaged or removed during maintenance works.

d) Do not use any abrasive cleaning agents and paint thinners (such as nitro, trichlor etc.) to clean the

device.

The best cleaning method is to use a damp cloth added with a few drops of a liquid household cleaner.

In hospitals and other public buildings, the prevailing regulations for cleaning and disinfection must be

observed.

During maintenance works, it is advisable to open the cleaning and service ange in order to check the

tank for any possible washing-in of foreign objects and contaminations, and to remove these if necessary.

MALFUNCTIONS

If the tank water is not heated, please check whether the line circuit breaker (automatic safety cutout) or

the safety fuse in the distribution box have reacted, and check the setting of the temperature control.

In all other cases, do not attempt to rectify the fault yourself. Please contact either a licensed plumber or our

customer service. In many cases it only needs a little manipulation by an expert and the tank is in order again.

In case of contact, please quote your model designation and manufacturing number, which you can nd on the

rating plate of your electric tank.

RECYCLING AND DISPOSAL

• Always dispose of materials according to environmental, recycling and waste management standards.

• All appliances, wearing parts, defective components and environmentally hazardous liquids and oils must be

disposed of or recycled according to applicable waste disposal regulations without harming the environment.

They must not be disposed of as household waste.

• Dispose of packaging made of cardboard, recyclable plastics and synthetic ller materials in an en-vironmen-

tally responsible manner through appropriate recycling systems or at a recycling centre.

• Please observe the applicable national and local regulations.

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Austria Email EHT serie Seite 26

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