Noritz NR71-SV Installation Manual

Also see for NR66-OD: Instructional manual Service manual Owner's guide Installation manual Installation manual

Contents

Noritz NR71-SV Installation Manual Manual pdf 12 page image

127. Vent Pipe Installation• The first vertical run from the top of the heatershould be no longer than 0.9m (3').• Make sure vent pipe is gas tight and will notleak. Use silicon sealant wherever necessary.• Do not common vent or connect more thanone appliance to this venting system.• The total vent length including horizontal & verticalvent runs should be no less than 0.9m (3').• Do not store hazardous or flammable sub-stances near the vent termination and checkthat the termination is not blocked in any way.• Steam or condensed water may come outfrom the vent termination. Select the locationfor the termination so as to prevent injury orproperty damage.• If snow is expected to accumulate, take carethe end of the pipe is not covered with snow orhit by falling lumps of snow.• Consult the vent pipe manufacturer's install-ation instructions for chimney connections.Appliance AdaptersWhen using a vent system other than N-Vent,an appliance adapter will be required to properlyconnect the vent to this appliance. Consult themanufacturer's instructions for the proper appli-ance adapter.Vent Piping• Noritz N-Vent is suggested for the vent system.If N-Vent is not used, a UL listed category III ventsystem must be used.• Follow the vent pipe manufacturer's installationinstructions.ClearancesManufacturer and Enclosed UnenclosedProduct Hor. Vert. Hor. Vert.Noritz N-VentClearances vary by manufacturer, refer to the ULapproved clearances when using materials otherthan N-Vent.( NR71-SV Only, Indoor Installation)250mm (10")(sides)375mm (15")(top)150mm (6")(bottom)WARNINGBe sure to doCARBON MONOXIDE POISONINGFollow all vent system requirements in accordance with relevant local or state regulation,or, in the absence of local or state code, in the U.S. to the National Fuel Gas Code ANSIZ233.1/NFPA 54 – latest edition, and in Canada, in accordance with NSCNGPI.100mm(4")25mm(1")25mm(1")No. of Elbows Max. Straight Vent Length*3 4.5m (15')2 8.1m (27')1 11.7m (39')NR71-SVNo. of Elbows Max. Straight Vent Length*3 4.5m (15')2 7.5m (25')1 10.6m (35')NR66-SVPipe diameter 100mm (4")Pipe diameter 75mm (3")• Make the vertical section of the exhaust ventas short as possible.• Maintain the same vent pipe diameter from theheater flue to the vent termination.*Not including the termination.