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Data Field NPE-180A
Heat Capacity (Input) Natural Gas 15,000-150,000 BTU/h
Propane Gas 15,000-150,000 BTU/h
Efficiency Ratings UEF (for NG & LP) 0.96
EF (Canada) (for NG & LP) 0.97
Flow Rate (DHW) 35⁰F(19⁰C) Temp Rise 8.4 GPM (32 L/m)
45⁰F(25⁰C) Temp Rise 6.5 GPM (25 L/m)
67⁰F(36⁰C) Temp Rise 4.3 GPM (16 L/m)
Dimensions 17.3"(W) x 27.4"(H) x 13.2"(D)
Weight 75 lbs (34kg)
Installation Type Indoor or Outdoor Wall-Hung
Venting Type Forced draft direct vent
Ignition Electronic Ignition
Water Pressure 15-150 PSI
Natural Gas Supply Pressure (from source) 3.5"-10.5" WC
Propane Gas Supply Pressure (from source) 8"-13" WC
Natural Gas Manifold Pressure (min to max) -0.04" WC to -0.84" WC
Propane Gas Manifold Pressure(min to max) -0.03" WC to -0.50" WC
Minimum Flow Rate 0.5GPM(1.9L/M),< 0.01GPM(0.04L/M) option for "A"models *
Connection Sizes Cold Water Inlet 3/4" NPT
Hot Water Outlet 3/4" NPT
Recirculation Inlet 3/4" NPT
Gas Inlet 3/4" NPT (Suitable for use with 1/2" rigid gas pipe; refer to installation manual for sizing criteria)
Power Supply Main Supply 120 V AC, 60Hz
Maximum Power Consumption 200W (max 2A), 350W (max 4A) with external pump connected
Materials Casing Cold rolled carbon steel
Heat Exchangers Primary Heat Exchanger: Stainless Steel Secondary Heat Exchanger: Stainless Steel
Venting Exhaust 2" or 3" PVC, CPVC, Polypropylene 2" or 3" Special Gas Vent Type BH (Class II, A/B/C)
Intake 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 APS, Ignition Operation Detector, Water Temperature High Limit Switch, Exhaust Temperature High Limit Sensor, Power Surge Fuse

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