33
Installation
equipped with a ball or a gate valve. They must also withstand
the operating pressure of the water, as indicated in the tech-
nical data sheet.
The installer must check the water hardness which must
be 0.7 mmol/l (4 °dH). Possibly use a softener.
Water hardness conversion table
Hardness expressed in
Water hardness
Hardness expressed in
French degrees (°fH)
(mmol/l)
German degrees (°dH)
0-10
0-1.01
0-5.60
11-15
111-1.51
6.16-8.40
16-20
1.61-2.02
8.96-11.20
21-25
2.12-2.52
11.76-14.00
26-30
2.62-3.03
14.56-16.80
31-35
3.13-3.53
17.36-19.60
36-40
3.64-4.04
20.16-22.40
41-45
4.14-4.55
22.96-25.20
46-50
4.65-5.05
25.76-28.00
51-55
5.15-5.56
28.56-30.80
56-60
5.66-6.06
31.36-33.60
Proper placement of the taps is shown on the de-
vice installation drawing that can be downloaded from
www.tuttnauer.com.
5.3.1 Connection to the water drain
The machine is equipped with a built-in drain trap which must
be mandatorily connected to the drain system of the building.
The correct positioning and sizing of the drain trap are shown
on the installation drawing. The user must carry out periodic
maintenance of the drains and check that they are not clogged.
Connect the grey drain pipe to the drain solenoid valve located
at the back of the machine (3 Fig. 8).
WARNING. The manufacturer is not liable in case of
environmental pollution due to an incorrect use of the
thermodisinfector.
