Navien NCB-180 Service Manual

Condensing Boiler
Service
Manual
Getting Service
If your boiler requires service, you have several options for getting service:
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Contact Technical Support at 1-800-519-8794 or on the website: www.navienamerica.com.
For warranty service, always contact Technical Support first..
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Contact the technician or professional who installed your boiler.
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Contact a licensed professional for the affected system (for example, a plumber or electrician).
When you contact Technical Support, please have the following information at hand:
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Model number
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Serial number
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Date purchased
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Installation location and type
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Error code, if any appears on the front panel display.
Version: 1.0(October. 27. 2013)
Navien America, Inc.
20 Goodyear lrvine, CA 92618 TEL +949-420-0420 FAX +949-420-0430 www.navienamerica.com

Navien NCB-180 Specifications

General

Fuel Type	Natural Gas or Propane
Maximum Input	180, 000 BTU/h
Minimum Input	18, 000 BTU/h
Heating Capacity	180, 000 BTU/h
Water Connection Size	3/4" NPT
Gas Connection Size	3/4" NPT
Vent Type	Direct Vent
Domestic Hot Water Flow Rate at 35°F	8.4 GPM
AFUE	95%
Vent Size	2 inch or 3 inch
Electrical Requirements	120V AC, 60Hz