To make things easier, the revision and internal cleaning there should be a free space at
least 25 cm between the protection cover (pos.13, figs. 7,
page 22
) of the electrical water
heater and any fixed obstacle.
1.4. Placement and securing
To anchor the thermo to the wall (see elevations on
page 13
), use 2 tacks and screws
which are sufficient to bear the weight of the thermo when filled with water (see
“characteristics” table
page 3
).
1.5. Installation of water system
When installing the water piping, follow the basic rules for preventing corrosion: “Do not
use copper or brass before iron or steel in the water circulation direction”. To avoid
galvanic pairs and their destructive effect, screw two tubes of the thermo (as seen in the
drawings in figure 7,
page 22)
and deploying Teflon tape, the insulating sleeves (pos.12)
supplied along with the thermo.
Screw the insulating sleeve of the cold water entry direction (blue) of the thermo, the
hydraulic security unit with an emptying device (pos. 8. figs. 7,
page 22
) supplied with the
thermo. Install a cutting key alongside the water pumping tube as seen in the drawings
(figs. 7 pos. 10,
page 22
).
Connect the hot water distribution pipe to the insulating sleeve of the hot water conduit of
the site.
The unit or hydraulic safety valve, supplied with the thermo, contains a retention and
overpressure valve. The latter opens as a maximum at 8 bars. If the pressure in the water
installation exceeds 5 bars, install a pressure reducer as indicated in the standard.
The widespread use of anti-return valves in the stipulations of the sanitary water system,
bringing about a strong increase in pressure by dint of the heating process; in these cases
it is vital to conduct the drain of the safety valve to an excavation pipe provided with a
siphon (figs. 7, pos.9,
page 22
); this tube shall be put in the open air and shall be installed
on a continuous slope until below.
The emptying of the lever can be carried out using the corresponding thermo (1).
Check the watertightness of all connections
1.6. Description of safety valve
1. - Appliance for emptying water from the thermo
Entered direction
cold water
2. - Outlet of mouth or emptying.
1
2
4
Summary of Contents for TNC 10
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