Navien NPE-180A Installation Manual page 57

5.5.3 Burner Assembly(NPE-180S/ 210S/ 240S)
10
7
10
9
24
56 Appendixes
18
20
9
21
10
9
16
23
9
10
25
13
12
17
10
15
14
17
10
15
10 6
22
19
1
2
3
10 4
10 5
6
10
8
9
10
11