14
400
1
2
3
4
5
6
17
18
7
8
9
10
22
21 20
19
11
13
14
15
16
12
2.12
Water Circuit Diagram
Legend:
1.
Air Pressure Switch
2.
Fan
3.
Main Heat Exchanger
4.
Ignition Electrodes and Detection Electrodes
5.
Burner
6.
Gas Valve
8.
Spark Generator
7.
Automatic air release valve
8.
Circulation Pump
9.
Motorised Valve with by-pass
10. Main Circuit Flow Switch
11. Safety Valve (3 bar)
12. Low pressure switch
13. C.H. expansion Vessel
14. D.H.W. expansion Vessel
15. D.H.W. Storage with insulation shell
16. D.H.W. Probe
17. Expansion relief valve (6 bar)
18. Temperature/Pressure relief valve (7bar)
19. Magnesium anode
20. C.H.W. Probe
21. Overheat Thermostat
22. Drain point
SI003A
