Navien NFB-175 Mode D'emploi page 8

General Specifications
Item
Dimensions
Weight
Installation Type
Venting Type
Ignition
Natural Gas Supply Pressure (from source)
Propane Gas Supply Pressure (from source)
Natural Gas Manifold Pressure
Propane Gas Manifold Pressure
Gas Connection Size
Power Supply
Materials
Venting
Safety Devices
Temperature Setting Range
Item
Space Heating
For more information about the space heating temperature setting range, refer to "11.3.3 Setting the Space Heating Operation" on
Note
page 83.
8 About the Boiler
NFB-175
-0.05 to -0.70 in WC
-0.10 to -0.68 in WC
Main Supply
Maximum Power
Consumption
Casing
Heat Exchangers
Exhaust
Intake
Vent Clearance
Flame Rod, APS, Ignition Operation Detector
Water Temperature High Limit Switch, Exhaust Temperature High Limit Sensor, Water
Pressure Sensor
Temperature Setting Range
Supply 77–194°F (25-90°C)
Return 68–158°F (20-70°C)
NFB-200
17.3 in (W) x 17.3 in (D) x 27.6 in (H)
123 lb (56 kg)
Indoor Wall-Hung
Forced Draft Direct Vent
Electronic Ignition
3.5 in–10.5 in WC
8.0 in–13.5 in WC
-0.05 to -0.20 in WC
-0.10 to -0.45 in WC
3/4 in NPT
120V AC, 60Hz
Less than 15 amperes
Cold-rolled carbon steel
Stainless Steel
2 in or 3 in PVC, CPVC, approved polypropylene*
2 in or 3 in Special Gas Vent Type BH (Class III, A/B/C)
2 in or 3 in Stainless Steel
2 in or 3 in PVC, CPVC, polypropylene
2 in or 3 in Special Gas Vent Type BH (Class III, A/B/C)
2 in or 3 in Stainless Steel
0 in to combustibles
Remarks
Actual supply and return temperatures vary
depending on the selected outdoor reset
curve.