Appendix; Electrical Diagram Sof; Appendix 6.1 Electrical Diagram Sof - State Water Heaters SOF 85 220 G Installation Instructions And User Manual

6. APPENDIX

6.1 Electrical diagram sof

= brown
1
= blue
2
= yellow/green
3
= black
4
= Earth
N = Neutral
L = Live
A = 'I/0'-switch
B = Overheating cut-out
C = High-limit thermostat
D = Control thermostat
E = Male 7-pole connector
H1 = Running time counter
SB = Fault alarm
Note:
If, in the case of a Riello front-mounted burner, a running
time counter (H1) is connected by means of a cable
longer than 3 m, a 47 nF capacitor must be fitted bet-
ween B4 and earth to prevent EMI.
The same applies to the installation of a fault alarm (SB);
in this case a 100 nF capacitor must be fitted between S3
and earth, if the cable length exceeds 3 m.
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