Navien NHB-150 Service Manual

14 NHB Service Manual
Version 1.0
2.2 Components
The following diagram shows the key components of the boiler. Component assembly diagrams and particular parts lists are included in the
Appendixes.
Intake Air
Air Filter
Front Panel
PCB
Power Switch
APS
LWCO
Flue Duct
Air Vent Connection
Exhaust
Space Heating
Supply

Navien NHB-150 Specifications

General

Model	NHB-150
Category	Boiler
Maximum Input	150, 000 BTU/h
AFUE	95%
Vent Type	Direct Vent
Fuel Type	Natural Gas or Propane
Min. Input (NG)	15, 000 BTU/h
Min. Input (LP)	15, 000 BTU/h
Voltage	120 V
Water Connection Size	1 inch NPT
Gas Connection Size	3/4 inch NPT
Vent Diameter	3"