Check, Maintenance, Care; Malfunctions - Austria Email SISS 350 Notice D'utilisation Et De Montage

9. Check, Maintenance, Care

a) During heating, the expansion water must drip visibly from the drain of the safety valve (the expansion water drips from
the valve of the mixing tap in the case of an unpressurised connection). The expansion water quantity is approx. 3.5 %
of the storage tanks content when fully heated (approx. 85° C).
The function of the safety valve must be checked monthly. When the safety valve test knob is lifted or turned to the po-
Caution
not heated up or hot water is withdrawn, then no water must drip from the safety valve.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 is defect. Please call a
plumber immediately.
b) The boiler scale as well as the furring that forms in the internal boiler of the storage tank in the case of heavily calciferous
the screws mist be tightened crosswise using a momentum of 18 to 22 Nm. The internal tank of the water heater with
special enamelling must not get in contact with boiler scale solvents. Do not use an antiliming pump! Finally, the device
c) In order to be entitled to any claims for warranty, as provided on the side of the manufacturer, the installed reactive anode
requires documented checking by an expert in intervals of max. 2 years of operation. During maintenance works, it is
and contaminations, and to remove these if necessary. Practically, the external current anode has an unlimited service life.
Its function must be monitored regularly by means of the control lamp. This indicates two operating conditions:
Green: system ok
: malfunction: call customer service!
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.
approved national regulations and standards, the connecting requirements of the local power company and waterworks,
as well as the Assembly and Operating Instructions must be complied with.
f) The room in which the device is operated must be free of frost. The assembly must be performed at a location that is
maintenance, repairs and possible replacement. In the case of heavily calciferous water, we recommend the upstream
integration of a customary antiliming device, as the natural formation of boiler scale substantiates no claim for any war-
ranty issued on the side of the manufacturer. An appropriate quality of drinking water is required for operation of the hot

10. Malfunctions

If the tank water is not heated up, please check whether the heat generator (oil, gas or solid fuel boiler) is fully
operative.
Please get in touch with either a licensed plumber or our customer service in the case that you are not able to rectify the
fault yourself. In many cases, experts only need to do a few little things and the storage tank or the system is working again.
of your storage tank.
Id.Nr.: 236921-12
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