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Both the combustion air inlet and the exhaust vent pipes must attach to the termination kit. The termination kit must terminate outside the structure and must be installed per the instructions outlined below for vertical or horizontal termination. Ver 440O1102004 [_ ticalterminationispreferred•Fieldsuppliedpipeandfittingsare requiredtheinstallation• tocomplete Kit Components KitContents: 3" Rain Cap or 2" RainCap 311DiameterSDR-26 Pipe, 191121Long or '' 13/16" 4 DiameterSDR-26 Pipe, 371/8,Long, 2 DiameterSDR-26 Pipe, 315/8 Long or 21/2"DiameterSDR-26 Pipe,24" Long, 3" Y Concentric Fittingor 2" Y Concentric Fitting Nominal3" or 4" Dia. SDR-26Pipe • 2or 21t2" Dia. Rain Cap . Concentric Fitting SDR-26Pipe 25-22-03 Vertical & Horizontal Termination 1. Determine the pipe diameters required for the installation from Table 13 and Table 14 and Figure 47. 2. Determine the best location for the termination kit. See Figure46 for vertical termination or Figure46 and Figure 50 for horizontal termination. Roof termination is preferred since it is less susceptible to damage, has reduced intake contaminants and less visible vent vapor• For side wall termination, consideration should be given to: 1) possible damage from the vapors to plants/shrubs, other equipment and building materials, 2) possible damage to the terminal from foreign objects, 3) wind effects that may cause recirculation of flue products, debris or light snowand 4) visible vent vapor• 3. Cut one 5" diameter hole through the structure for the NAHA001CV Kit or one 4" diameter hole for the NAHA002CV Kit. 4. Dimension D may be lengthened to 60" max. or shortened by cutting the pipes to 12" rain. Dimension A will change according to D dimension• (See Figure 47) Concentric Vent Roof Installation Vent Maintain12"min.clearanceabove highestanticipated snowlevel.Max. of24"aboveroof. Combustion Air Roof Boot/ Flashing (Field Supplied) (Field Supplied) 45° Elbow _J (Field Supplied) Vent Combustion Note: 25-22-02 Supportmust be fieldinstalledto secureterminationkittostructure. Concentric Vent Dimensional Drawing 11/2" A• 25-22-03 NAHA001CV 38//8 3 41/2 211/8 Me°e, A'IBIcI NAHA002CV 33_/8 2 31/2 161/8 = Dimension will change accordingly as dimension D is lengthened or shortened• _ = Dimension D may be lengthened to 60" may also be shortened by cutting the pipes provided in the kit to 12" minimum Concentric Termination Kit NAHA001CV & NAHA002CV Venting ......................................................for Models Table *9MPD 50,000, 75,000 & 80,000 Btuh Furnaces NAHA002CV -35' & (4) 90 ° elbows with 2" PVC pipe or NAHA001CV -65' & (4) 90 ° elbows with 3" PVC pipe 100,000 Btuh Furnace NAHA001CV -35' & (4) 90 ° elbows with 3" PVC pipe or NAHA001CV -65' & (4) 90 ° elbows with 3" PVC pipe & Long Vent Kit (See Tech. Manual) 125,000 Btuh Furnace NAHA001CV -35' & (4) 90 ° elbows with 3" PVC pipe 1. Do not include the field supplied 45 ° elbow in the total elbow count. 2. If more than four elbows are required, reduce the length of both the inlet and the exhaust pipes five feet for each additional elbow used. 3. Elbows are DWV long radius type for 2" and 3" vents, NOTE: Feet of pipe is whichever pipe run is the longest, either inlet or outlet side, [_ 440 01 1020 04 Concentric Termination Kit NAHA001CV & NAHA002CV Venting ........................................................for Models Table N9MP2 50,000 & 80,000 Btuh Furnaces NAHA002CV -35' & (4) 90 ° elbows with 2" PVC pipe or NAHA001CV -65' & (4) 90 ° elbows with 3" PVC pipe 75,000 Btuh Furnaces NAHA002CV -20' & (2) 90 ° elbows with 2" PVC pipe or NAHA002CV -35' & (4) 90 ° elbows with 2" PVC pipe & Long Vent Kit (See Tech. Manual) or NAHA001CV -65' & (4) 90 ° elbows with 3" PVC pipe 100,000 Btuh Furnace NAHA001CV -35' & (4) 90 ° elbows with 3" PVC pipe or NAHA001CV -65' & (4) 90 ° elbows with 3" PVC pipe & Long Vent Kit (See Tech. Manual) 125,000 Btuh Furnace NAHA001CV -35' & (4) 90 ° elbows with 3" PVC pipe 1. Do not include the field supplied 45 ° elbow in the total elbow count, 2, If more than four elbows are required, reduce the length of both the inlet and the exhaust pipes five feet for each additional elbow used, 3, Elbows are DWV long radius type for 2" and 3" vents, NOTE: Feet of pipe is whichever pipe run is the longest, either inlet or outlet side. If assembly needs to be extended to meet height or side wall thickness requirement, the two pipes supplied in the kit may be replaced by using the same diameter solid, single (no coupling connections) field supplied SDR-26 PVC (ASTM D2241) pipes. Do not extend dimension D more than 60". (See Figure 47) Do not use field supplied couplings to extend the pipes. Airflow restriction will occur and the furnace pressure switch may cause intermittent operation. 5, Partially assemble the concentric vent termination kit. Clean and cement the parts using the procedures for Joining Pipe and Fittings section of the manual. A) Cement the Y Concentric fitting to the 4" diameter kit ...

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