17.3" W x 27.6" H x 17.3" D (43.9cm W x 70.1cm H x 43.9cm D)
|SCAQMD 1146.2(NOx, <20ppm)||Yes|
|Energy Star Certified||Yes|
|Space Heating Ratings||AFUE, %||95.0|
|Heating Capacity||161 MBH (47.2 kWh)|
|Heating||17,500 - 175,000 BTU/H (5.128 - 51.275 kWh)|
Navien Condensing Boiler Space Heating Ratings
|Heating Input||Min||17.5 MBH (5.1 kWh)|
|Max||175 MBH (51.3 kWh)|
|Heating Capacity2||161 MBH (47.2 kWh)|
|Net AHRI Rating, Water3||140 MBH (41 kWh)|
|Water Pressure4||Min||12 PSI (0.8 kg/cm2)|
|Max||80 PSI (5.6 kg/cm2)|
|Water Connection Size (Supply, Return)||1.25" NPT|
1 Ratings are the same for Natural Gas models converted to Propane use.
² Based on U.S. Department of Energy (DOE) test procedures.
3 The NET AHRI Water Ratings shown are based on a piping and pickup allowance of 1.15. Consult Navien before selecting a boiler for installations having unusual piping and pickup requirements, such as intermittent system operation, extensive piping systems, etc.
4 30 psi water pressure relief valve is included as standard.
|Dimensions||17.3" W x 27.6" H x 17.3" D (43.9cm W x 70.1cm H x 43.9cm D)|
|Boiler weight||123 lbs (55.8 kg)|
|Installation Type||Indoor wall-hung|
|Venting Type||Forced draft direct vent|
|Natural gas supply pressure (from source)||3.5 " WC - 10.5 " WC (0.87 Kpa - 2.61 Kpa)|
|Propane gas supply pressure (from source)||8 " WC - 13.5 " WC (1.99 Kpa - 3.36 Kpa)|
|Natural gas manifold pressure (min-max)||-0.05 " WC - -0.7 " WC (-0.012 Kpa - -0.17 Kpa)|
|Propane gas manifold pressure (min-max)||-0.1 " WC - -0.68 " WC (-0.025 Kpa - -0.17 Kpa)|
|Connection sizes||Gas inlet||3/4"|
|Power supply||Main supply||120V AC, 60Hz|
|Maximum power consumption||Less than 15 amperes|
|Materials||Casing||Cold-rolled carbon steel|
|Heat exchangers||Primary and secondary: stainless steel|
|Venting||Exhaust||2" or 3" PVC, CPVC, PP and SS 2" or 3" special gas vent type BH (ClassIII, A/B/C)|
|Intake||2" or 3" PVC, CPVC, PP and SS 2" or 3" special gas vent type BH, (Class III, A/B/C)|
|Vent clearances||0" to combustibles|
|Safety Devices||Flame rod, APS, Ignition operation detector, Water temperature high limit switch, Exhaust temperature high limit sensor, Water pressure sensor|
Navien reserves the right to change specifications at any time without prior notice. Please refer to www.navieninc.com to verify you have the most current information.
Navien reserves the right to change specifications at any time without prior notice.