Rinnai RHFE-431FA - Manual (Page 52)

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Flue Manifold
P.C.B
Combustion Fan
Room Temperature
Thermistor
Over Heat Thermistor
Solenoid Valve No.1
Modulating Valve
Gas Inlet
Solenoid Valve No.2 Injector
Damper
Main Burner
Over Heat Switch(No.2)
Warm Air
Electrode
Main Heat
Exchanger
Flame Rod
Thermal Fuse
Over Heat
Switch
(No.1)
Sub Heat
Exchanger
Convection Fan
Gas Filter
Over Heat
Switch(No.3)
RHFE-431FA