Dimensions - Navien NCB-180 Service Manual

3.2 Dimensions

The following diagrams show the dimensions of the boiler and the table lists the supply connections.
Overhead View
1.5" (38 mm)
14.3" (364 mm)
6.7" (170 mm)
4.5" (115 mm)
18 NCB Service Manual
Supply Connections
Description
Air Intake
A
Exhaust Gas Vent
B
Space Heating Supply
C
Space Heating Return
D
Hot Water Outlet (DHW)
E
Gas Supply Inlet
F
Cold Water Inlet (DHW)
G
Condensate Outlet
H
Auto Feeder Inlet (Make-up Water)
I
Supply Connections
3.5"
2"
(88 mm)
(50 mm)
17.3"(440mm)
Diameter
2 in
2 in
1 in
1 in
3/4 in
3/4 in
3/4 in
1/2 in
1/2 in
1.8"
4.8" 3"
(46 mm)
(123 mm) (76 mm)
Version 1.0