Electrical installer
Installation, use and maintenance manual – Caldaria Con export
29
4
4
ELECTRICAL INSTALLER
Do not power and/or start the boiler before filling the
hydraulic system, as this may damage the internal hy-
draulic components.
4.1
WARNINGS
General warnings
Read the warnings in Chapter III.1
p. 4, providing im-
portant information on regulations and on safety.
Compliance with installation standards
Installation must comply with applicable regulations in
force, based on the installation Country and site, in mat-
ters of safety, design, implementation and maintenance
of electrical systems.
Installation must also comply with the manufacturer's
provisions.
Live components
After placing the appliance in the final position, and pri-
or to making electrical connections, ensure not to work
on live components.
Earthing
The appliance must be connected to an effective earth-
ing system, installed in compliance with regulations in
force.
It is forbidden to use gas pipes as earthing.
Cable segregation
Keep power cables physically separate from signal ones.
Do not use the power supply switch to turn the ap-
pliance on/off
Never use the external isolation switch to turn the appli-
ance on and off, since it may be damaged in the long run
(occasional blackouts are tolerated).
To switch the appliance on and off, use only the control
device provided for this purpose (remote control or ex-
ternal request).
The cables inside the boiler must be routed through the
P1 and P2 cable glands (Paragraph 1.2
p. 7). To do
this, make a hole in the cable gland, slightly smaller than
the cable, so that the air does not pass through.
4.2
ELECTRICAL POWER SUPPLY
4.2.1
Caldaria 35
How to connect the power supply
1. Remove the fitting cover and the ABS casing (Paragraph
p. 34).
2. Unscrew the two screws and remove the terminal block cov-
er plate (Figure 4.1
3. Perform connections as shown in Figure 4.1 p. 29.
4. The ground wire to the terminal marked with the ground
symbol.
5. The neutral cable to the terminal marked with the letter N.
6. The line cable to the terminal marked with the letter L.
Figure 4.1
Electrical power supply
A
Plate
B
Terminal block
1
Neutral
2
Yellow/Green
3
Line
L
N
Se
Se
A
Ta
Ta
B
1
2
3
4.2.2
Caldaria 55.1 and 100.2
How to connect the power supply
1. Remove the boiler front panel and the fitting cover
(Paragraph 5.2
2. Disconnect the male plug from the female socket and make
the connections as shown in Figure 4.2
p. 30, using a cable
suitable for the maximum power consumption declared on
the nameplate and in any case not less than 3x1 mm
2
.
3. After the operation, reconnect the male plug to the female
socket and then reassemble the fitting cover and the front
panel.
Summary of Contents for Caldaria 100.2 Condensing+ export
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