6
6.6 Electrical connections
6.6.1 Recommendations
Earth the appliance before making any electrical connections.
Only qualified engineers may carry out electrical connections, always
with the power off.
Power the appliance via a circuit that includes an omnipolar switch with
contact opening distance of 3 mm or more.
When making electrical connections to the mains, respect the polarities.
Position the various electrical cables in such a way that they never
touch the heating pipes.
Keep the various electrical cables far enough from the heating
pipes so that they cannot be damaged by the effect of the heat.
6.6.2 Recommended cable cross section
The cable will be carefully chosen according to the following information:
Distance of the appliance from the power source.
Upstream protection.
Fig.51 Flexible flue gas system B23p
MW-3000034
L1
L2
L3
Fig.52 Rigid flue gas system B23p
MW-3000035
L1
L2
L3
Fig.53 Through-roof flue gas system B23p
MW-3000036
L1
L2
L3
6 Installation
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