Electrical Installation - OSO HOTWATER Wally-W 30 Manuel D'installation

3.6 Electrical installation

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.
3.6.1 Electrical components
Component
Safety thermostat
Working thermostat
Heating element
Power cable with connector
Internal cables
3.6.2 Electrical connections in the junction box
!
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.
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
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.
3.6.3 Torque settings
Component
1" heating element
Thermostat screws
Screws on element head
10
Note
85 °C thermal trigger
50–75 °C adjustable
Single phase 230V
Heat resistant
Heat resistant
WARNINGS
– Earth – is
Torque settings
38 Nm (+/- 5)
2 Nm (+/- 0,1)
2 Nm (+/- 0,1)
L N
1 3
2 4
1
THERM-O-DISC
2
75 50
55
70
65 60
Electrical connection, diagram