Noritz NR71-SV Installation Manual

Also see for NR50-OD: Instruction manual Instructional manual Service manual Owner's guide 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 heat-er should be no longer than 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 &vertical vent runs should be no less than 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 snowor hit 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 prop-erly connect the vent to this appliance. Consultthe manufacturer's instructions for the properappliance adapter.Vent Piping• Noritz N-Vent is suggested for the vent system.If N-Vent is not used, a UL listed category IIIvent system must be used.• Follow the vent pipe manufacturer's installationinstructions.Pipe diameter 4"No. of Elbows Max. Straight Vent Length*3 15'2 27'1 39'ClearancesManufacturer and Enclosed UnenclosedProduct Hor. Vert. Hor. Vert.Noritz N-Vent 4" 1" 1"Clearances vary by manufacturer, refer to the ULapproved clearances when using materials otherthan N-Vent.(-SV type only, Indoor Installation)10" (sides)15"(top)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.• Make the vertical section of the exhaust ventas short as possible.• Maintain the same vent pipe diameter from theheater flue to the vent termination.NR71-SVPipe diameter 3"No. of Elbows Max. Straight Vent Length*3 15'2 25'1 35'NR66-SV*Not including the termination.