APPENDIX
A) PRINCIPAL COMPONENTS
C.A.I.
C.S.I.
77
caldaie
11
LEGENDA:
1 BURNER
2 COMBUSTION CHAMBER
3 CIRCULATOR
4 IGNITER/CONTROL ELECTRODE
5 FLOWMETER
6 WATER PRESSURE SWITCH
7 SAFETY PRESSURE SWITCH (C.S.I. only)
8 FILLING TAP
9 BI-THERMAL EXCHANGER
10 AIR BOX (C.S.I. only)
11 ELECTRONIC CONTROL PANEL
12 NTC TEMPERATURE CONTROL PROBLES
13 FUMES THERMOSTAT (C.A.I. only)
14 LIMIT THERMOSTAT
15 GAS VALVE
16 SAFETY VALVE
17 EXPANSION TANK
18 FAN ( C.S.I. only)
19 VENTURI AND PITOT TUBE (C.S.I. only)
A HEATING RETURN
B HEATING DELIVERY
C GAS
D SANITARY OUTPUT
E SANITARY INPUT
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