Dimensions - Navien NFC-175 Installation & Operation Manual

1.5 Dimensions

The following diagrams show the dimensions of the boiler and the table lists the supply connections.
Overhead View
A
9.7" (246 mm)
3.8" (97 mm)
C
17.3" (440 mm)
B
Supply Connections
Description
A Air Intake
B Exhaust Gas Vent
C PRV-Air Vent Connection
D Heating Supply
E Heating Return
F Gas Connection
G Condensate Outlet
H Cold Water Inlet (DHW)
I Hot Water Outlet (DHW)
J Auto Feeder Inlet (Make-up Water)
Supply Connections
D I
3.4" (87 mm) 3.3" (85 mm)
2" (53 mm)
14.6" (370 mm)
Diameter
2 in
2 in
/ in
3
4
1 in
1 in
/ in
3
4
/ in
1
2
/ in
3
4
/ in
3
4
/ in
1
2
H J E F G
5.4" (136.6 mm)
About the Boiler 13