Components - Navien NHB Series Installation & Operation Manual

1.4 Components

The following diagram shows the key components of the boiler. Component assembly diagrams and particular parts lists are included in the
Appendixes.
Intake Air
PRV-Air Vent Connection
(Optional Heating Supply)
Flame Detector
Igniter
Mixing Chamber
Fire-Tube Type
Heat Exchanger
ASME Name Plate
Front Panel
Power Switch
PCB
24V Power Transformer
Exhaust
Optional Heating Return
Fan & Motor Assembly
Dual Venturi
Air Intake Pipe
Gas Valve
APS
Gas Pipe
Condensate Outlet
Gas Inlet
Condensate Trap
(Siphon)
About the Boiler 9