hajdu Z150S ErP Montage- Und Gebrauchsanleitung Seite 25

EN
8.6. Active anode
The hot water storage tank is additionally protected against corrosion by active
anodes. The service life of the active anodes is subject to the water quality and the
operating conditions. The condition of the anodes must be checked upon each
descaling operation, but at least once every two years. Its replacement requires the
disconnection of the power supply; such replacement requires the disconnection
of the electrical circuit and the removal of the service cover. After removing the
service cover, it is recommended to perform reassembling using a new sealing. The
technician determines the time of the next inspection. If the diameter of the anode
decreases by 10mm anywhere, it must be replaced. After replacement of the
anode, its earthing must be implemented according to the original state. Adequate
metal-through connection between the active anode and the earthing bolt is
essential.
8.7. Defrosting
Taking the appliance out of service requires the removal of power, and the total
emptying of the container. When putting back into operation, refill the appliance
with water, before connecting to the electrical network.
8.8. Summary of periodical inspections
• check of safety valve (8.1, page 11)
Biyearly:
• Descaling (8.3, page 11), Active anode inspection (8.6, page 12), Radiator
inspection (8.4, page 11)
• Check of hydraulic connections.
• Check of the condition of electrical assemblies.
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