10
3.6.3 Torque settings
!
WARNINGS
Constant voltage present at terminals L and N.
Before any electrical work is done, the power
supply must be disconnected and secured
against activation while the work is in progress.
Component
Torque settings
1” heating element
38 Nm (+/- 5)
Thermostat screws
2 Nm (+/- 0,1)
Screws on element head
2 Nm (+/- 0,1)
3.6 Electrical installation
3.6.1 Electrical components
Component
Note
Safety thermostat
85 °C thermal trigger
Working thermostat
50–75 °C adjustable
Heating element
Single phase 230V
Power cable with connector
Heat resistant
Internal cables
Heat resistant
3.6.2 Electrical connections in the junction box
RESET
RES
ET
M2
1
2
3
4
THERM-O-DISC
1
2
L
N
Electrical connection, diagram
75
50
55
60
65
70
Fixed electric fittings should be used for installa-
tion in new homes or when changing an existing
electrical setup in accordance with regulations. A
mains cable with plug for wall socket can be used
when replacing the product without changing the
electrical setup. Any fixed electric fittings must be
installed by an authorised electrician.
Fitting or retrofitting an external power supply
control unit to the product or its power supply
must only be performed by an authorized electri-
cian. The control unit must be approved by the
product manufacturer.
The relevant standards and regulations must be
followed.
A) Live wire (L) is connected to point ‘1’ on the
safety thermostat.
B) Neutral wire (N) is connected to point ‘3’ on
the safety thermostat.
C) Yellow wire with green stripe – Earth – is
connected to the earth terminal on the inner tank;
see illustration.
D) Internal wires from the element to the thermo-
stat are connected to point ‘4’ on the safety ther-
mostat and point ‘2’ on the working thermostat
respectively. See illustration.
