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Navien NFB Series User Manual

Navien NFB Series
232 pages
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111Appendixes
# Description Part # Remark
1 Fan Assembly
30019668A NFB-200
30019106A NFB-175
2 Venturi Packing 20018079A
3 Dual Venturi 30017402A
4 Intake Pipe 30019120A
5 Orifice Packing 20022660A
6 Gas Orifice
20041039A NFB-200 (NG)
20041037A NFB-175 (NG)
20041040A NFB-200 (LP)
20041038A NFB-175 (LP)
7 O-ring (P34) 20019090A
8 Gas Connector (Upper) 20042238A
9 O-ring (P20) 20006934A
10 Gas Connector Adapter 20042238A
11 Gas Valve 30011586A
12 Gas Pipe 30019180A
13 Fastener 20007878A
14 Fan Packing 20042399A
15 Fan Damper 30008825A
16 Flame Rod 30019166A
17 Flame Rod Packing 20040230A
18 Igniter 30019165A
19 Igniter Packing 20040229A
20 Flame Inspection Window (Upper) 20040231A
21 Flame Inspection Window (Lower) 20040232A
22 Flame Inspection Window (Graphite Packing) 20043399A
23 Flame Inspection Window (Glass) 20040236A
24 Packing (Graphite) 20040233A
25 Burner Packing 20040228A
26 Burner 20040226A
27 Ignition Transformer Bracket 20041154A
28 Ignition Transformer 30019980A
29 Burner Temperature Fuse 30020776A
30 Packing (Graphite) 20040234A
31 Screw (M4X12) 20006390A
32 Gas Inlet Adapter 20042244A
33 Packing (EVA) 20023581A
34 Screw (M4X10) 20038758A
35 (SET) Igniter 30021275A Includes Igniter and Packing
36 (SET) Flame Rod 30021274A Includes Flame Rod and Packing
37 (SET) Flame Inspection Window 30021277A Includes Upper/Lower/Glass and Packing

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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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