HIGH EFFICIENCY CONDENSING TANKLESS WATER HEATER
- ½ gas pipe capable up to 24'
- Field convertible gas system
- Ultra condensing efficiency
- Dual stainless steel heat exchangers
- Low NOx emissions (20ppm)
- SCH 40, 2" venting up to 60'
- Cascading capable
Navien NPE-180A, Condensing Tankless Water Heater
* Available for “A” models configured in an optional ComfortFlow recirculation mode. Additional energy use will occur when using recirculation.
* Navien reserves the right to change specifications at any time without prior notice.Item NPE-180A Heat Capacity (input) 15,000 - 150,000 BTU/H (4.395 - 43.95 kWh) Efficiency Ratings 0.96 Dimensions 17.3" W x 27.4" H x 13.2" D (43.9cm W x 69.6cm H x 33.5cm D) Boiler weight 75 lbs (34 kg) Installation Type Indoor or outdoor wall-hung Venting Type Forced draft direct vent Ignition Electronic ignition Water pressure 15 - 150 PSI (1.055 - 10.545 kg/cm2) 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 " WC (1.99 Kpa - 3.23 Kpa) Natural gas manifold pressure (min-max) -0.04 " WC - -0.84 " WC (-0.0099 Kpa - -0.21 Kpa) Propane gas manifold pressure (min-max) -0.05 " WC - -0.5 " WC (-0.012 Kpa - -0.12 Kpa) Minimum flow rate 0.5 GPM (1.893 l/m) Connection sizes 3/4" Power supply 120V AC, 60Hz Maximum power consumption 200W (max 2A), 350W (max 4A) with external pump connected Casing Cold rolled carbon steel Venting 2" or 3" PVC, CPVC, polypropylene / 2" or 3" special gas vent type BH (Class II, 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, power surge fuse