Navien NHB Series, Installation & Operation Manual

Page: 12 / 135

12 About the Boiler
Supply Connections
E G H F
12.7” (320.7 mm)
4” (102.3 mm)
18.9” (480.6 mm)
21” (534.2 mm)
22.4”
(568 mm)
14.3”
(364.4 mm)
8.5”
(217 mm)
25.2” (640 mm)
3.1”
(78.5 mm)
16.7”
(423.1 mm)
14.3”
(362.1 mm)
E
G
H F
16.5” (420 mm)
3.2” (81 mm)
18.4” (468 mm)
22” (560 mm)
22.3”
(566 mm)
17.2”
(436 mm)
2.9 ”
(75 mm)
6.3”
(161 mm)
11.8”
(301 mm)
5.3”
(136 mm)
25” (638 mm)
<NFB-301C> <NFB-399C>