Danfoss ECL Comfort 310 Service Manual - Page 9

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Service guide

7.3 Individual houses (without repeater)

1) = surge protector

As there is no repeater used in this node, there is no isolated channels created. S.Gnd is not connected to earth (PE).

Input cable (coming from central heating station) shield MUST be floating and output cable shield is connected to earth. Or the input and

output shield continuity is maintained and it is not connected to earth (As shown above).

This is to maintain single point earthing in each network, on common reference signal (S.Gnd) and shield cable (Refer section 5 point 5,

6).

VI.LV.H1.02

ECL 296 / ECL 310 Modbus