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Navien NCB-180 Service Manual

Navien NCB-180
149 pages
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Condensing Boiler
Service
Manual
Getting Service
If your boiler requires service, you have several options for getting service:
Contact Technical Support at 1-800-519-8794 or on the website: www.navienamerica.com.
For warranty service, always contact Technical Support first..
Contact the technician or professional who installed your boiler.
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:
Model number
Serial number
Date purchased
Installation location and type
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

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Navien NCB-180 Specifications

General IconGeneral
Fuel TypeNatural Gas or Propane
Maximum Input180, 000 BTU/h
Minimum Input18, 000 BTU/h
Heating Capacity180, 000 BTU/h
Water Connection Size3/4" NPT
Gas Connection Size3/4" NPT
Vent TypeDirect Vent
Domestic Hot Water Flow Rate at 35°F8.4 GPM
AFUE95%
Vent Size2 inch or 3 inch
Electrical Requirements120V AC, 60Hz

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