5.5 Wiring diagrams
Main wiring diagram
fig. 14 - Main wiring diagram
24
Ignition electrode
32
Heating circulating pump
44
Gas valve
49
Safety thermostat
63
Boiler control thermostat
72
Room thermostat (not supplied)
82
Detection electrode
83
Electronic controller
92
Fume thermostat
98
Switch
129
Reset button with indicator lamp
159
Test button
160
Auxiliary contact
A
Connections in broken lines carried out by the installer
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cod. 3540S420 - 05/2010 (Rev. 00)
EN
35