Navien NFC-175 Service Manual

WARNING
If the information in these instructions is not followed exactly, a fire or explosion may result, causing
property damage, personal injury, or death.
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
WHAT TO DO IF YOU SMELL GAS
●
Do not try to light any appliance.
●
Do not touch any electrical switch; do not use any phone in your building.
●
Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
●
If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service agency or the gas
supplier.
Keep this manual near this boiler for
future reference whenever maintenance
or service is required.
Service Manual
NFC Condensing Boilers
Model
NFC-175
NFC-200

Navien NFC-175 Specifications

General

Category	Boiler
Fuel Type	Natural Gas / Propane
Max. Input (NG)	175, 000 BTU/H
Max. Input (LP)	175, 000 BTU/H
DHW Max. Input	175, 000 BTU/H
Output	150, 000 BTU/hr
Efficiency	95% AFUE
Water Connection Size	3/4" NPT
Water Connections	3/4" NPT
Gas Connection Size	3/4" NPT
Gas Connection	3/4" NPT
Weight	120 lbs
Electrical Supply	120V
Vent Type	PVC, CPVC, Polypropylene
Vent Size	2"/3"