Bedienungsanleitung ACV HP300 (Seite 37 von 118) (Englisch, Holländisch, Französisch)

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check. In order to switch the heat pump of the water heater in a mode, press the ON/OFF key located on the

control panel. Before setting the clock and other parameters or programs, please follow the instructions of

chapter 4.

FOR PERSONNEL AUTHORIZED TO PERFORM MAINTENANCE

8. MAINTENANCE INSTRUCTIONS

WARNING!

Please follow the general warnings and safety precautions listed in the previous chapter and

please comply with them strictly.

Any operations and activities has to be performed by qualified personnel (so they have to possess

expertise as required by effective regulations).

WARNING!

Before repair or maintenance, the appliance always must be switched off and the external switch must

be turned into “OFF” position.

8.1. Appliance discharge

Water drainage can be performed through the blow off button (faucet) mounted in front of the hot water tank or

through the combined safety valve, turning the button in the direction indicated by the arrow, through the water

outlet tube. Before water drainage, the valve closing pipeline connection and the cold water faucet have to be

closed, while the hot water faucet has to be kept opened during water drainage.

ATTENTION! HOT WATER MAY OUTFLOW DURING WATER DRAINAGE!

If you perceive water leaking or any malfunctioning from the interior of the appliance, switch it off from the

water pipeline system immediately with the help of the closing valve.

8.2. Storing and combined safety valve

In order to ensure safe operation, it is rational to turn to a plumber to check the appliance and the correct

operation of the combined safety valve every now and then (in every year). Furthermore, it is recommended to

blow off the valve every month or every second month through turning the blow off button of the safety valve

in the direction indicated by the arrow. This way, the valve seat is cleaned from any possible pollution (sand

grains, scale, etc.)

8.3. Active anode

The internal surface of the tank covered by enamel made of steel sheet, which represents complementary

protection against corrosion, is supported by active anode. The life-cycle of the active anode depends on the

quality and temperature of the water. In case of water of lower temperature, the extent of active anode

diminution is less.

Your appliance is equipped with the up-to-date active anode status display. Until when the signal lamp

of the hot water tank lights with green color, the active anode ensures secondary corrosion protection of the

tank. As soon as the active anode fails to perform its corrosion protection task, the color of the signal lamp turns

into yellow color, then into red color. In this case, a professional electrician has to be contacted to mount a new

active anode into the appliance. It is extremely important to mount the electronics of the active anode display

and the signaling anode in a professional way.

IN CASE OF NEGLECTING THE ABOVE INSTRUCTIONS THAT CAUSES DAMAGE TO

SAFETY AND USAGE FEATURES OF THE APPLIANCE, YOU LOSE YOUR GUARANTEE AND

WARRANT RIGHTS.

8.4. Scale removal

Depending on the quality of the water, scale deposition may occur on the heater exchanger or on the

tank. The scale deposited on the heater decreases heating efficiency. So, it is necessary to clean the hot water

tank from scale every second year.

It is strictly forbidden to apply any sharp metal object or acid to remove scale deposited on the heat

exchanger, the close cover and its fittings. Please use cleaning and scale removal supplies available in

commerce.

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ACV HP300 Seite 37

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