10
RESET
RE
SET
M2
1
2
3
4
THERM-O-DISC
1
2
RESET
RE
SET
M2
1
2
3
4
THERM-O-DISC
1
2
RESET
RE
SET
M2
1
2
3
4
THERM-O-DISC
1
2
L1
L2
L3
L1
L1
L2
L2
L3
L3
Wiring diagram 3x5 kW - 3x230V / 3x400V
3.6.3 Torque settings
!
WARNING
Constant voltage present at the terminals. Be-
fore any electrical work is done, the power sup-
ply must be disconnected and secured against
activation while the work is in progress.
Component
Torque
5/4” heating element
60 Nm (+/- 5)
Thermostat screws
2 Nm (+/- 0.1)
Screw on the element head
2 Nm (+/- 0.1)
3.6 Electrical installation
3.6.1 Electrical components
Component
Note
Safety thermostat
98°C thermal cut-out
Work thermostat
60-90°C adjustable
Heating element
3-phase 230 V
Internal wires
Heat-resistant
Fixed electrical fittings must be used for instal-
lation. Any electric fittings must be installed by
an authorised electrician. The relevant standards
and regulations must be followed.
3.6.2 Electrical connections in the junction box
A) Supply cable connected to Ensto terminal (1)
1
Circuit diagram shows
standard connec-
tion from the fac-
tory (3x230V), and
also applies to 3x400V
(elements need to be
changed to 415V).
as shown. Supply wires should be secured with
suitable strain relievers.
B) Internal wires from connection piece (1) to
thermostats and the wires from thermostats to
elements are pre-connected from the factory.
C) Make sure that the earth wire (yellow wire
with green stripe) is connected to the earthing
point
Cover of junction box should be correctly mounted
before the power is switched on. The power must
not be switched on until the product has been
filled with water.
