Burner Assembly - Navien NCB500-2S/37K Service Manual

7.2 Burner Assembly

19
18
17
# Description
1 Heat exchanger Ass'y
2 Fan packing
3 Fan
4 Ignition transformer
5 Fuse
6 Dual venturi
7 Outlet adapter
8 Inlet adapter
9 Clip
10 Electrode
11 Packing
12 Sight glass
13 Clip
14 Inlet pipe
15 Outlet pipe
16 Overheat protector
17 Gas valve
18 Packing
19 Gas pipe
3
2
6
7
9
11
10
12
16
15
4
5
1
8
13
14
Part #
30030053A
30030051A
20022744A
30030914A
30029732A
30025036A
30029315A
30029314A
30029538A
30013743A
20007733B
30030059A
20051913A
30028760A
20017726A
30029054A
30029057A
30029056A
30002558A
30019539A
20026127A
30029041A
30029042A
Remark
3S/54K
2S+/42K
3S/54K
2S+/42K
3S/54K
2S+/42K
2S+/42K
3S/54K
Components Diagram and Part List 103