Navien NCB-240/110H User Manual

13About the Boiler
1.5 Dimensions
The following diagrams show the dimensions of the boiler and the table lists the supply connections.
29.3" (745.2 mm)
Supply Connections
Description Diameter
A Pressure Relief Valve Adapter ¾ in
B Air Intake 2 in
C Exhaust Gas Vent 2 in
D Heating Supply 1 in
E Domestic Hot ¾ in
F Gas Connection ¾ in
G Domestic Cold ¾ in
H Auto Feeder Inlet (Make-up Water) ½ in
I Condensate Outlet ½ in
J Heating Return 1 in
Overhead View
3” (77 mm)
6.7” (170 mm)4.5”
(115 mm)
0.4“ (10 mm)
1.5”
(38 mm)
14.3” (364 mm)
2.6” (67 mm)
A
B C
Supply Connections
12.8” (325 mm)
3.5”
(88 mm)
2.9”
(74 mm)
2.5”
(63 mm)
2.7”
(68 mm)
17.3” (440 mm)
9.6” (244 mm)
2.4” (60 mm)
2.4” (60 mm)
2.7”
(69.5 mm)
3.3”
(85 mm)
D J
E
H
F
IG

Navien NCB-240/110H Specifications

General

Brand	Navien
Model	NCB-240/110H
Category	Boiler
Language	English