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Navien NFB Series User Manual

Navien NFB Series
232 pages
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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

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Navien NFB Series Specifications

General IconGeneral
TypeCondensing Boiler
Fuel TypeNatural Gas or Propane
Heat ExchangerStainless Steel
Vent TypeDirect Vent
Vent Diameter2" or 3"

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