CGB
Manual air-vent valve
Flue pipe
Limit thermostat
(only for CGB-24)
Limit thermostat
Burner
Heating water heat exch.
TBV/flow sensor
Return sensor
Flue gas temperature limiter
Condensate siphon
Three-way diverter valve
Heating flow
DHW flow
Gas supply pipe
10
Layout
Fan motor
Gas fan
Gas restrictor
Gas:air mixing chamber
Expansion vessel
Inlet pipe
Gas combination valve
Heating circuit pump
(auto venting)
Overflow valve
Heating return
DHW return
3061344_201509