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2.15
W
C
ATER
IRCUIT
F
. 2.24
IG
L
:
EGEND
1.
Fan
2.
Heat Exchanger
3.
Overheat Thermostat
4.
Central Heating Flow NTC
5.
Burner
6.
Detection Electrode
7.
Ignition Electrodes
8.
Diverter Valve
9.
Low Water Pressure Switch
10. Drain Valve
11. Domestic Hot Water NTC
12. Secondary Heat Exchanger
13. Gas Valve
14. D.H.W. Flow Switch
15. D.H.W. Inlet Filter
16. Automatic By-pass
17. Safety Valve
18. Pressure Gauge
19. Circulation Pump with Automatic Air Release Valve
20. Central Heating Return NTC
21. Expansion Vessel
22. Air Pressure Switch
D
IAGRAM
1
2
3
4
5
6
7
8
9
10
A
B
11
12
C
D
13
14 15
16
A. Central Heating Flow
B. Domestic Hot Water Outlet
C. Gas Inlet
D. Domestic Cold Water Inlet
E. Central Heating Return
22
21
20
19
18
17
E
SI016C
21
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