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If the network fuse on the connection terminal board needs replacing, this must also be done by qualified personnel: use a 3.15 A fast fuse.
For the main power supply to the appliance, never use adapters, multiple sockets or extension leads.
Installation with system operating at direct low temperature
The boiler can directly supply a low-temperature system by setting the flow temperature adjustment range “t0” and “t1” (Par. 3.13). In this
case, it is suitable to add a specific safety kit (optional) made up of a thermostat (with adjustable temperature).
The thermostat must be positioned on the system flow pipe at a distance of at least 2 metres from the appliance.
