17
A1007841-664Y7800 • A
SAFETY INSTRUCTIONS FOR THE
ELECTRICAL INSTALLATION
• Electrical connections must be carried out
by a qualified technician, in accordance with
regulations applicable to electrical systems.
• Make sure that the boiler is connected to the
earth.
• As far as the power input to the boiler is
concerned, the installation must comply
with standard EN 60364-1 that define the
applicable levels of insulation, and with
all provisions applicable to installation
conditions.
• For protection against electrical hazard, it is
always recommended to install a differential
cut-out device (Ground Fault Isolator) on the
power supply circuit, upstream of the boiler.
• The control circuit is protected by a 3A
magnetic circuit breaker.
• The default electrical safeties integrated in
the boiler protect the internal parts of the
boiler.
• Any additional electrical safety device must
be installed outside the boiler.
• For protection against overheating, it is
advisable to place an external positive
safety power cut-out, controlled by the
boiler safety thermostat.
SIZING THE SUPPLY WIRES
The supply wires are sized depending of the type
and current of the Magnetic Circuit Breaker (MCB),
the latter being sized according to the nominal cur-
rent of the boiler.
The admissible current of the supply wires depends
on the ambient temperature, the section and length
of the wires, the wires insulation, the wires assembly,
the type of installation and the environment.
The following values are provided for information,
considering an ambient temperature of 30°C and a
maximal length of 5 meters. In all the cases, the in-
stallation must be performed in accordance with the
applicable Wiring Regulations.
Nominal section
(mm)
Nominal current of the
MCB (A)
1.5
16
2.5
25
4
32
6
40
10
63
16
80
CONNECTING THE POWER SUPPLY
• This appliance must be permanently connected to fixed wiring and must be earthed.
• The wiring must be carried out by a competent person and in accordance with the current IEE Wiring
Regulations.
T1
T2
T3
T4
T1
T2
T3
T4
L1
PE
L1
230 V ~ 50 Hz
(3A)
N
L2
L3
PE
400 V ~ 50 Hz
T1
T2
T3
T1
T2
T3
L1
PE
L1
230 V ~ 50 Hz
(3A)
N
L2
L3
PE
400 V ~ 50 Hz
E-Tech W 09 - 15 Mono
E-Tech W 09 - 15 - 22 - 28 Tri
E-Tech W 36 Tri
T1
T2
T3
T4
T1
T2
T3
T4
PE
L1
230 V ~ 50 Hz
(3A)
N
N
L1
PE
230 V ~ 50 Hz
EN
Installation
Summary of Contents for E-Tech W 09 Mono
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Page 29: ...E Tech W 09 15 Mono 09 15 22 28 36 Tri A1007841_664Y7800 A ML...
Page 31: ...3 763 mm 442 mm 332 mm 185 mm 370 mm 105 mm Min 25 mm Min 400 mm Min 200 mm ML...
Page 56: ...28 2 3 4 5 1 6 7 8 9 10 12 13 11 14 16 17 18 15 12 ML...
Page 60: ...32 ML...
Page 61: ...33 ML...
Page 63: ...35 ML...
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