Noritz NRCB199DV Installation Manual

Also see for NRCB180DV: Instructional manual Owner's guide Installation manual

11Maximum Vent Lengths• This appliance has been designed to be ventedwith either 2" (50mm) or 3" (75mm) PVC, CPVCor PP.Do not exceed the following maximum vent lengths:7. Venting the Combi Boiler (Indoor Installation Only)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 the Natural Gas andPropane Installation Code CSA B149.1 – latest edition.• This is a Category IV appliance. Only ventmaterials approved for use with Category IVappliances should be used.• Under normal conditions, this appliance willnot produce an exhaust flue temperature inexcess of 149°F (65°C) and schedule 40 PVCpipe may be used as the vent material. If theCombi Boiler set temperature is 160°F (70°C)or higher, use schedule 40/80 CPVC or PP.Refer to page 13 for additional requirements.• Make sure the vent system is gas tight andwill not leak.• Support the vent pipe with hangers at regularintervals as specified by these instructions orthe instructions of the vent manufacturer.• 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 3' (0.9m).• Do not store hazardous or flammable substancesnear the vent termination and check that thetermination 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.General RequirementsClearancesPVC,CPVC or PP has been approved for use onthis appliance with zero clearance to combustibles.No. of Elbows Max. Straight Vent Length*8 N/A 60' (18.0m)7 N/A 63' (18.9m)6 12' ( 3.6m) 69' (20.7m)5 18' ( 5.4m) 75' (22.5m)4 27' ( 8.1m) 78' (23.4m)3 36' (10.8m) 84' (25.2m)2 42' (12.6m) 90' (27.0m)1 51' (15.3m) 96' (28.8m)Pipe diameter 2" (50mm) 3" (75mm)Indoor Installation* Not including the terminationRefer to page 17 for max. vent lengthsWhen using PVC Concentric Termination.1. Continue to insert the Vent Pipe until it reaches to thebase of the unit Exhaust and Intake Flue.(The Vent Pipe will be inserted approximately 2.3"(60mm).)2. Secure the Vent Pipe by tightening the band using ascrewdriver(The tightening torque shall be between 16 and 20 in lb.)How to tighten the vent pipeExhaust andIntake FlueVent PipeScrewdriver-Flat head-Box wrench(5/16")