Connecting The Mains Supply - Baxi HT 1.850 Installation, Operation And Maintenance Manual

12. MAKING THE ELECTRICAL CONNECTIONS
Electrical safety of the appliance is only guaranteed by correct grounding, in accordance with the rules in force.
Connect the boiler to a 230V monophase + ground power supply by means of the three-pin cable supplied
with it and make sure you connect polarities correctly.
Use a double-pole switch with a contact separation of at least 3mm in both poles.
In case you replace the power supply cable t a HAR H05 VV-F' 3x0.75mm cable with an 8mm diameter max.
2
IMPORTANT: Check that the overall current drawn by accessories connected to the appliance is less
than 2 A. If the value is greater, a relay must be wired between the boiler control circuit board and the
accessories drawing the higher current.
Cover
Terminal board
Terminal board
Cover
Terminal board
Figure 8
12.1 TERMINAL BLOCKS ACCESS
• Cut off 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 ( gure 8). Remove the black fuse holder to
check and/or replace the fuse.
Terminal block M2
• Unscrew the xing screw and remove the cover from terminal block M2.
Terminal block M3
• Unscrew the xing screws and remove the main cover.
ISTRUCTIONS PERTAINING TO THE INSTALLER 910.026.1 - EN (AUS)
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