Navien NPN Installation & Operation Manual page 64

6.5.3 Burner Assembly (NPN-160U/180U/199U)
23
24
25
# Description
1 Chamber Case
2 Pressure Test Nipple
3
Gasket
4
5 Heat Exchanger
6 Exhaust Duct
7
Gasket
8
15
15
8
14
7
14
31
30
3
4
18
21
22
19
17
27
26
Service Part #
30023298A
30023299A
20047192A
30022984A
30022701A
30022893A
30022676A
20046291A
20045926A
20045927A
3
2
28
20
29
Part #
30023298*
30023299*
20048333*
20047192*
20048027*
30022984*
30022701*
30022893*
30022676*
20046291*
20045926*
20045927*
9
6
7
8
11
5
12
16
13
1
10
Remark
160U
180U/199U
160U
180U/199U
160U
180U/199U
160U
180U/199U
Appendixes 63