Navien NFB Series - Page 10

10 About the Boiler
Terminal Block
Dual Venturi
Fan & Motor Assembly
Fire-Tube Type
Heat Exchanger
APS
Power Switch
Heating Return
Gas Valve
ASME Name Plate
Mixing Chamber
Flame Rod
Igniter
24 V Power Transformer
Heating Supply
Condensate Trap
(Siphon)
PCB
Front Panel
Gas Pipe
Air Intake Pipe