91.7.1 - GB/IE
InstructIons pErtaInInG to thE InstaLLEr
Figure 11
020523_0400
Terminal board M1
Terminal board M2
Cover
Cover
14. connecting tHe mains supply
Electrical safety of the appliance is only guaranteed by correct earthing, in compliance with the applicable
standards and regulations.
Connect the boiler to a 230V earthed power supply by means of the three-pin cable supplied ensure that the
polarity is correct.
Use a double-pole switch isolator 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
2
cable with an 8mm diameter
maximum outer sheath.
The fuse, a fast-acting type rated 2A, is incorporated into the power supply terminals (remove the black fuse
holder to enable inspection and/or replacement).
IMPORTANT: Check that the overall current drawn by accessories connected to the appliance is less than 1
amp. If the value is greater, a relay must be wired between the boiler control circuit board and the accessories
drawing the higher current.