Ariston BCH 120 L Technische Installationsanleitung und Benutzerhandbuch - Seite 28
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Technical Installation Instructions and User Guide
Cabling diagram
IMPORTANT: THE ELECTRONIC CIRCUIT MUST ONLY OPERATE AT 230V!
Black
GB
Titanium anode
CARE AND MAINTENANCE
THE CURRENT MUST BE CUT BEFORE ANY OPERATION IS CARRIED OUT ON THE UNIT
All operations must be carried out by a quali ed technician.
We recommend subscribing to a maintenance contract and planning to replace the safety assembly at least every 5 years, if necessary.
Every year (twice a year if the water is treated by a water softener), the unit must be drained so that the Protech anode can be checked to make
sure it is functioning properly.
For these operations, contact your trusted installer.
Exterior cleaning
The external parts of the tank must be cleaned using a damp cloth and appropriate cleaning products that are available commercially. In any
case, the use of abrasive products, solvents, spirits, alcohol, etc. is not recommended.
Draining
Unplug the water heater and the hydraulic supply.
Open the hot water valve to let air in.
Open the drainage valve on the safety assembly.
Remove limescale
In cases of very hard water, it is advisable to remove limescale at least twice a year.
To do this, it is
rst of all necessary to empty the hot water tank and then remove the upper
cess the interior. Carry out the task using a suction device and a plastic or wooden brush (to remove the most
resistant sediment). Clean it again and rinse it with a spray of water.
While cleaning, be careful not to damage the enamel layer that protects the inside of the reservoir.
Replace the upper ange, install a new seal and ll the reservoir, making sure there are no leaks.
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Red
Electronic circuit
Relays
Connections
ange to be able to ac-