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12. Making the electrical connections
Electrical safety of the appliance is only guaranteed by correct earthing, in accordance with the current stan-
dards and regulations.
Connect the boiler to a 230V by means of the three-pin cable supplied with it make sure that the polarities are
correctly connected.
Use a double-pole switch with a contact separation of at least 3mm in both poles.
In case you replace the power supply cable fit a HAR H05 VV-F' 3x0.75mm
cable with an 8mm diameter
2
maximum outer sheath.
IMPORTANT: Check that the overall current drawn by accessories connected to the appliance is less
than 2 amp. If the value is greater, a relay must be wired between the boiler control circuit board and
the accessories drawing the higher current.
M1
Terminal Block
M2
Terminal Block
Cover
Cover
Facia panel
Figure 10
12.1 terMinal blocks access
• Isolate power to the boiler with the two-pole switch.
• Remove the top facia panel cover (which is held by magnets).
• Unscrew the two screws holding the facia panel in place.
• Swing the facia panel forwards.
Main terminal block M1
• Remove the clip-on cover from terminal strip M1.
• The main terminal block incorporates a fast blow 3.15 A fuse (figure 10). Remove the black fuse holder to
check and/or replace the fuse.
Terminal block M2
• Unscrew the fixing screw and remove the cover from terminal block M2.
Terminal block M3
• Unscrew the fixing screws and remove the main cover.
InstructIons pertaInInG to the InstaLLer
912.823.1 - GB
23
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