Biasi Inovia 25S ERP User Manual And Installation Instructions page 48

Wall hung, fanflue, roomsealed, high efficiency gas boiler

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INSTALLATION

is controlled by the external control terminal

block.

In Fig. 6.31 the boiler is not permanently con-

nected to the supply line. The boiler operation

is controlled by switching the mains supply.

In this case, when the boiler is switched off

some important features like the antifreeze

system, the monitoring of the boiler by the op-

eration lights, the post circulation of the pump,

etc. are completely deactivated.

For these reasons it is advisable to use the

first diagram (Fig. 6.30).

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41-583-30