Navien NFC-175, Service Manual

Page: 13 / 138

NFC Service Manual 13 Version 1.0
2.1 Product Information Items
Navien features the NFC Series gas boiler. This appliance is fully
modulating and provides central heating. Depending on the heat
capacity, each model is divided into two types; 175 and 200.
Model Maximum Space Heating Input
NFC-175 175,000 BTU/h
NFC-200 199,000 BTU/h
A separate heating expansion vessel is required.
Internal freeze protection and an electronic control unit are
incorporated within the boiler. Any standalone room thermostat or
set of contacts can be used with the boiler.
2. Product Information