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2.4 MAIN COMPONENTS
46.5
Combustion analysis plug
Combustion fan
Flow temperature detector CH
Expansion vessel
Gas valve
Overheating switch
Burner’s air intake
Domestic plate exchanger
Connection tube of expansion vessel
Circulation pump
Three-way valve
Domestic how water sensor
Suction plate (dual system)
Coaxial flue system filling unit
Plate heat exhanger for hot water
Heat exchanger
Gas valve
Expansion vessel
Combustion fan
Circulation pump
Smoke ejector conduit
Igniter
Detection electrode
First heat exchanger
Second heat exchanger
Return temp. sensor CH
Circuit’s pressure gauge CH
Flow switch DHW
Water level sensor CH
Cold water inlet filter
Condensation siphon and neutralizer
Power cable
Return filter CH
Vent valve
Antifrost electrical resistance