Airthereal EVT-9K Benutzerhandbuch - Seite 14

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1. Use a 10mm Allen wrench to unscrew the screw.

2. Take out the filter, circlip and the water flow rotor in turn.

3. Clean the water flow rotor and filter.

Installation steps

1. Install the water flow rotor into the copper head of the

water inlet.

Note: The rounded bump on the top of the rotor is

facing inward.

2. Install the circlip, filter and screw into the water inlet

in turn.

3. Use a 10mm Allen wrench to lock the screw.

NORMAL MAINTENANCE

Note: Do not attempt to repair this water heater yourself if the unit is not working properly.

Call a technician for assistance. The power supply always needs to be shut off before these

operations are carried out.

To ensure consistent Maximum performance of the unit, it is recommended to follow these instructions:

1. Periodically remove scale and dirt that may build up at the aerator of the faucet or in the shower

head.

2. There is a built-in filter at the inlet connection which should be cleaned from time to time. Please

cut the water supply before cleaning this filter. You can then reverse the inlet and outlet pipe

connection (connect each pipe to the opposite connection) and open the faucet to manually flush

the filter by opening the faucet to its max. After flushing the filter in this way, remember to reverse

the pipes back to the normal connections.

3. If the water heater is not used for a long time (more than 3 months), please clean the water inlet

waterway first in the state of power off ( Not using it for a long time will cause oxidation of the

water pipe, and dirty water will flow out of the boiling water), air and impurities must be removed

before use.

Important Note

1. Any maintenance performed on the water heater unit may introduce air into pipes. It is important

to purge all the air out before powering on again. Failure to do so could cause serious damage to

the heating element.

2. If you have a water supply with high levels of mineralization (hard water), you should increase the

frequency of your maintenance. Check the descaler device regularly to see if it is functional.

3. Do not use paint thinner, alcohol, petrol,or any other chemical solutions to clean the unit.

Use only a damp cloth with mild detergent to wipe away any dirt or debris.

Runded Bump

Water Flow Rotor