warning - Nordyne

WARNING:CARBON MONOXIDEPOISONING HAZARD1. Seal any unused openings in the ventingsystem2. Inspect the venting system for propersize and horizontal pitch, as requiredin the National Fuel Gas Code, ANSIZ223.1 or the CAN/CGA B149 InstallationCodes and these instructions.Determine that there is no blockageor restriction, leakage, corrosion andother deficiencies which could causean unsafe condition.3. So far as is practical, close all buildingdoors and windows and all doorsbetween the space in which theappliance(s) connected to the ventingsystem are located and other spacesof the building.4. Follow the lighting instructions. Placethe appliance being inspected in operation.Adjust thermostat so applianceshall operate continuously.5. Turn on clothes dryers and any otherappliance not connected to the ventingsystem. Turn on any exhaust fans,such as range hoods and bathroomexhausts, so they shall operate at maximumspeed. Do not operate a summerexhaust fan.6. Close fireplace dampers.7. Test for spillage from draft hoodequipped appliance at the draft hoodrelief opening after 5 minutes of mainburner operation. Use the flame of amatch or candle.8. If improper venting is observed duringany of the above tests, the venting systemmust be corrected in accordancewith the National Fuel Gas Code, ANSIZ223.1/NFPA 54 and/or CSA B149.1,Natural Gas and Propane InstallationCodes.9. After it has been determined that eachappliance connected to the ventingsystem properly vents when tested asoutlined above, return doors, windows,exhaust fans, fireplace dampers andany other gas burning appliance totheir previous conditions of use.Vent Pipe MaterialVent and combustion air pipe and fittings must beone of the following materials and must conformto the indicated ANSI/ASTM standards:MaterialStandardSchedule 40 PVC D1785PVC-DWVD2665SDR-21D2241& SDR-26ABS-DWVD2661Schedule 40 ABS F628Foam/Cellular Core PVC F891*In Canada, all plastic vent pipe must be certifiedto ULC S636.Cement and primer must conform to ATSMStandard D2564 for PVC and Standard D2235for ABS. When joining PVC piping to ABS, usePVC solvent cement. (See procedure specifi edin ASTM Standard D3138.)Vent Pipe Length and DiameterIn order for the furnace to operate properly,the combustion air and vent piping must not beexcessively restrictive. To ensure this use Table5, which indicates the maximum allowable pipinglength for a furnace of specifi ed input rate,when installed with piping of selected diameterand number of elbows. This table applies to thelength and number of elbows for each pipe. Touse the table, the furnace input rate, the centerlinelength and the number of elbows on eachpipe must be known. Choose the diameter forwhich the tabulated length is equal to or greaterthan required.Proper use of the table is illustrated by the followingexample:Example:An 80,000 Btu/h furnace is to be installed in a“one-pipe” system with 40 feet of vent piping.There are a total of four long radius 90-degreeelbows used in the vent, including the one exteriorto the building.Solution:For this particular installation, the equivalent ventlength must be calculated. This equivalent ventlength will then be compared to the maximumallowable vent length given in Table 5. Then, thediameter of the piping can be chosen for which theequivalent vent length is less than the maximum18