INSTALLATION INSTRUCTIONS
_
ELECTRICAL CONNECTIONS
For qualified personnel only:
the boiler works with 230 V 50 Hz AC current and has maximum input of 170 W. Connection to the electrical mains must be
performed with a device having an omnipolar opening of at least 3 mm. Make sure the live and neutral connections conform to
the diagram.
A secure earth connection is compulsory according to national and local ragulations.
IMPORTANT
If you need to replace the power supply cable, use cable having following specifications: (HO5 W-F) 3x1 with maximum external diameter 8
mm.). Connect to the terminal block located in the instrument panel as follows:
A.
Turn off the electrical power supply at the mains.
B.
Remove the boiler front casing.
C.
Remove the small panel plate
A
on the right side of the panel as shown in the figure 1.
D.
With the terminal block
B
now open make the following connections.
•
Connect the yellow/green wire to the terminal marked with the earth symbol “ “ (see fig.1).
•
Connect the blue wire to the terminal marked with the letter “N”.
•
Connect the brown wire to the terminal marked with the letter “L”.
•
Terminal identified as:
Ta
⇒
Room thermostat
Se
⇒
External sensor
Once all connections have been made, reinstall the small panel plate and the boiler front casing.
Ta
S
blue
yellow/green
brown
LN
A
Se
Ta
B
Se
CONDENSING WALL-HUNG BOILER – TG05A062.A0505
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