Navien NCB-180 Service Manual page 20

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 (min/max)
Propane Gas Manifold Pressure (min/max)
Gas Connection Size
Main Supply
Power Supply
Maximum Power
Consumption
Casing
Materials
Heat Exchangers
Exhaust
Venting
Intake
Vent Clearances
Safety Devices
Accessories
NOTE
 This unit may be installed at elevations up to 10,100 ft (3,078 m) for use with Natural Gas, and up to 4,500 ft (1,370 m) for use
with Propane.
NCB-180
17 in (W) x 28 in (H) x 12 in (D)
74 lbs (34 kg)
Indoor Wall-Hung
Forced Draft Direct Vent
Electronic Ignition
3.5 in-10.5 in WC
8.0 in-13.5 in WC
-0.07 in WC / -0.66 in WC
-0.06 in WC / -0.62 in WC
3/4 in NPT
120V AC, 60Hz
200W (max 2A)
Cold-rolled carbon steel
Primary Heat Exchanger: Stainless Steel
Secondary Heat Exchanger: Stainless Steel
Domestic Water Heat Exchanger: 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 PVC, CPVC, Polypropylene
2 in or 3 in Special Gas Vent Type BH (Class III, A/B/C)
0 in to combustibles
Flame Rod, APS, Gas Valve Operation Detector, Ignition Operation Detector, Water
Temperature High Limit Switch,
Exhaust Temperature High Limit Sensor
Plumb Easy Valve Set, Outdoor Sensor, Pressure Relief Valve, Condensate Neutralizer,
Communication Cable
NCB-210
84 lbs (38 kg)
-0.05 in WC / -0.36 in WC
-0.1 in WC / -0.66 in WC
NCB-240
84 lbs (38 kg)
-0.06 in WC / -1.2 in WC
-0.03 in WC / -0.98 in WC