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2.3 Specifications <br /> The following table lists the specifications for the water heater.Additional specifications about water,gas, <br /> electric,and air supplies(venting)appear in the Installation section. <br /> Universal Outdoor <br /> NPN-160U- NPN-180U- NPN-199U- NPN-120E- NPN-160E- NPN-180E- NPN-199E- <br /> Item NG NG NG NG NG NG NG <br /> NPN-160U- NPN-180U- NPN-199U- NPN-120E- NPN-160E- NPN-180E- NPN-199E- <br /> LP LP LP LP LP LP LP <br /> Heat Natural Gas 10,700- 10,700- 10,700 10,700- 10,700- 10,700- 10,700- <br /> Capacity 160,000 180,000 199,900 120,000 160,000 180,000 199,900 <br /> (Input) Propane Gas BTU/H BTU/H BTU/H BTU/H BTU/H BTU/H BTU/H <br /> Uniform UEF <br /> Energy (for NG&UP) 0.81 0.81 0.81 0.81 0.81 0.81 0.81 <br /> Factor <br /> 45 T(25°C) 5.8 GPM 6.6 GPM 7.4 GPM 4.2 GPM 5.8 GPM 6.6 GPM 7.4 GPM <br /> Flow Rate Temp Rise (22 Um) (25 Um) (28 Um) (15.9 Um) (22 Um) (25 Um) (28 Um) <br /> (DHW) 67°F(36° 1 4.0 GPM 4.5 GPM 5.0 GPM 2.9GPM 4.0 GPM 4.5 GPM 5.0 GPM <br /> Temp Rise (15 Um) (17 Um) (19 Um) (11 Um) (15 Um) (17 Um) (19 Um) <br /> Dimensions 14.0 in(W)x 23.0 in(H)x 9.3 in(D) <br /> Weight(Gross) 55 lbs(25 kg) 601bs(27 kg)60 lbs(27 kg)55 lbs(25 kg) 55 lbs(25 kg) 601bs(27 kg)601bs(27 kg) <br /> Installation Type Indoor Wall-Hung Only Outdoor Wall-Hung <br /> (Vent Kit Optional for Outdoor) <br /> Venting Type Forced Draft Direct Vent(Indoor only) <br /> Ignition Electronic Ignition <br /> Water Pressure 15-150 PSI <br /> Natural Gas Supply <br /> Pressure 3.5 in WC-105 in WC <br /> (from source) <br /> Propane Gas Supply 8 in WC-13 in WC <br /> Pressure(from source) <br /> Natural Gas Manifold 2.83 in W.C, 2.25 in WC, 2.81 in WC, 2.99 in WC, 3231n WC, 238 in WC, 2.99 in WC, <br /> Pressure(Max. Min.) 0.70 in WC 053in WC 0.53 in WC 0.67 in WC 0.69 in WC 0.53 In WC 0.52 in WC <br /> Propane Gas Manifold 5.93in WC, 5.28in WC, 655in WC, 6.65 in WC, 6.341n WC, 5.39in WC, 6.61 in WC, <br /> Pressure(Max.-Min.) 1.381n WC 131 in WC 1.31 In WC 1.54 in WC 1 1.35 in WC 128 in WC 1.28 in WC <br /> Minimum Flow Rate 0.5 GPM 0.9 Um) <br /> Cold Water 3/4 in NPT <br /> Inlet <br /> Connection Hot Water <br /> Sizes Outlet 3/4 in NPT <br /> Gas Inlet 3/4 in NPr <br /> Main Supply 120V AC,60 Hz <br /> Normal SOW 88W 120 W I 90 W I SOW 88W 120W <br /> Power Standby 4W <br /> Supply Anti-frost 114W <br /> External <150 W,1.5 A <br /> Pump <br /> Fuse 5.0 A <br /> Casing Cold Rolled Carbon Steel <br /> Materials Heat <br /> Stainless Steel <br /> Exchangers <br /> Safety Devices Flame Rod,APS,Vent Installation Detector,Ignition Operation Detector, <br /> WaterTemperature High Limit Switch,Power Surge Fuse <br /> About the Water Heater 7 <br />