Dimensions - Navien NCB500-2S/37K Service Manual

3.2 Dimensions

The following diagrams show the dimensions of the boiler and the table lists the supply connections.
Overhead View
197.5 mm
16 Technical Data
400 mm
A
NCB500-2S/37K
NCB500-2S+/41K
Supply Connections
Description
A Flue exhaust/Air intake
B Central heating supply
C Hot water outlet (DHW)
D Gas supply inlet
E Cold water inlet (DHW)
F Central heating return
Bottom View
B
C D
163 mm 163 mm
41 mm 75 mm 41 mm 75 mm 103.7 mm 103.7 mm
Diameter
Ø60/100,
Ø80/125
22 mm
15 mm
22 mm
15 mm
22 mm
E F
94 mm 94 mm