Maintenance; Decommissioning - Tuxhorn tubra-nemux-S Instructions De Montage Et D'utilisation

8 M a i n t e n a n c e
The manufacturer recommends having the system serviced annually by authorised,
specialist personnel.
Cleaning the heat exchanger:
Regularly clean the unit if deposit build-up can be expected due to unfavourable water quality
(e.g. extremely hard water or pronounced soiling). The cleaning process restores the original
condition of the heat exchanger.
There is the option of cleaning the unit by flushing it. To enable flushing and descaling, the
heat exchanger must be removed. The 3/4" connections of the PWT can be connected
directly to the flushing connections.
Flush the heat exchanger in the direction opposite to the normal flow direction using a
suitable cleaning solution.
Make sure any chemicals used for cleaning are suitable for stainless steel, copper or nickel.
Non-compliance may result in permanent damage to the heat exchanger! Use only chloride-
free water or water with a low chloride content and water hardness for cleaning solutions.
Choose the cleaning agent to match the type of contamination and resistance of the heat
exchanger plates. It is important to obtain confirmation from the cleaning agent manufacturer
that the cleaning agent will not cause corrosion of the heat exchanger plates to be cleaned.
Clean the heat exchanger as per the cleaning agent manufacturer's work instructions.
Neutralise any remaining acids in the system after cleaning; passivate all metal surfaces.
Passivation is mandatory to prevent any development of corrosion. Always rinse the clean
heat exchanger and system using a sufficient amount of fresh water. Always observe the
specifications provided by the cleaning agent manufacturer regarding use of the cleaning
agent.
9 D e c o m m i s s i o n i n g
®
If the tubra -nemux-S/M is decommissioned for a prolonged period, the power supply must
be disconnected.
For final decommissioning of the tubra
corresponding system components must be disconnected; all of the relevant pipes and
components must be completely drained.
The decommissioning, dismantling and disposal processes should only be conducted by
qualified, specialist personnel. Components and materials must be disposed of in
accordance with the current applicable regulations.
908.19.08.00
Last updated 2022/03/15
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-nemux-S/M the power supply for all of the
- 14 -
GB