valutazioni - 4, GPA: 4.3 ( )

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Notes: 1. The vent for this appliance shall not terminate a. Over public walkways; or b. Near soffit vents or crawl space vents or other areas where condensate or vapor could create a nusiance or hazard or property damage; or c. Where condensate vapor could cause damage or could be detrimental to the operafion of regulators, relief valves, or other equipment. 2. When locating vent terminations, consideration must be given to prevailing winds, location, and other conditions which may cause recirculation of the combusfiob products of adjacent vents. Recirculafion can cause poor combustion, inlet condensate problems, and accelerated corrosion of the heat exchangers. 441 O1 261302 7. Masonry Chimney Venting Chimney Inspection All masonry chimney construction must conform to Standard ANSI/NFPA 211-2003 and to any state or local codes applicable. The chimney must be in good condition and a complete chimney inspection must be conducted prior to furnace installation. If the inspection reveals damage or abnormal conditions, make necessary repairs or seek expert help. See Figure 11 "The Chimney Inspection Chart". Measure inside area of tile-liner and exact height of chimney from the top of the chimney to the highest appliance flue collar or drafthood outlet. Connector Type To reduce flue gas heat loss and the chance of condensate problems, the vent connector must be double-wall Type B vent. Venting Restrictions for Chimney Types Interior Chimney -has no sides exposed to the outdoors below the roofline. All installations can be single furnace or common vented with another draft hood equipped Category ] appliance. Exterior Chimney -has one or more sides exposed to the outdoors below the roof line. All installations with a 99% Winter Design Temperature* below 17°F must be common vented only with a draft hood equipped Category I appliance. * The 99% Winter Design Dry-Bulb (db) temperatures are found in the 1993 ASHRAE Fundamentals Handbook, Chapter 24, Table 1 (United States) and 2 (Ca nada ), or use the 99.6% heating db temperatures found in the 1997 or 2001 ASHRAE Fundamentals Handbook, Climatic Design Information chapter, Table 1A (United States) and 2A (Canada). CARBON MONOXIDE POISONING, FIRE AND EXPLOSION HAZARD. Failure to properly vent this furnace could result in death, personal injury and/or property damage. These furnaces are CSA (formerly AGA and CGA) design-certified for venting into exterior clay tile-lined masonry chimneys with a factory accessory Chimney Adapter Kit. Refer to the furnace rating plate for correct kit usage. The Chimney Adapter Kits are for use with ONLY furnaces having a Chimney Adapter Kit number marked on the furnace rating plate. Ira claytile-lined masonry chimney is being used and it is exposed to the outdoors below the roof line, relining might be required. Chimneys shall conform to the Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances ANSI/NFPA 211-2003 in the United States and to a Provincial or Territorial Building Code in Canada (in its absence, the National Building Code of Canada) and must be in good condition. U.S.A.-RefertoSections 13.1.9or13.2.20oftheNFGCortheauthority having jurisdiction to determine whether relining is required. If relining is required, use a properly sized listed metal liner, Type-B vent, or a listed alternative venting design. NOTE: See the NFGC, 13.1.9 and 13.2.20 regarding alternative venting design and the exception, which cover installations such as the Chimney Adapter Kits NAHAOOIDH and NAHAOO2DH. The Chimney Adapter Kits are listed alternative venting designs for these furnaces. See the kit instructions for complete details. Canada (and U.S.A.)-This furnace is permitted to be vented into a clay tile-lined masonry chimney that is exposed to the outdoors below the roof line, provided: 1. Vent connector is Type-B double-wall, and 2. This furnace is common vented with at least 1 draft hood- equipped appliance, and 3. The combined appliance input rating is less than the maximum capacity given in Table A, and 4. The input rating of each space-heating appliance is greater than the minimum input rating given in Table B for Masonry Chimneys for the local 99% Winter Design Temperature. Chimneys having internal areas greater than 38 square inches require furnace input ratings greater than the input ratings of these furnaces. See footnote at bottom of Table B, and 5. The authority having jurisdiction approves. If all of these conditions cannot be met, an alternative venting design shall be used, such as the listed chimney adapter kit with a furnace listed for use with the kit, a listed chimney-lining system, or a Type-B vent. These furnaces are CSA design-certified for use in exterior clay tile-lined masonry chimneys with a factory accessory Chimney Adapter Kit. Refer to the furnace rating plate for correct kit usage. The Chimney Adapter Kits are listed alternative venting designs and are for use with ONLY furnaces having a Chimney Ada...

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