Danfoss 087H3803 Service Guide

© Danfoss | 2017.06 | 9
VI.LV.H1.02
Service guide ECL 296 / ECL 310 Modbus
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 oating 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).

Danfoss 087H3803 Specifications

General

Brand	Danfoss
Model	087H3803
Category	Controller
Language	English