Napoleon Ascent BHD4PN Installation And Operation Manual

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Napoleon Ascent BHD4PN Installation And Operation Manual Manual pdf 21 page image

ENW415-1285 / G / 04.27.1821framing4.0 framingMaintain these minimum clearances to combustibles from appliance and vent surfaces:Combustible Appliance framing:- 1/4" (6.4mm) to the sides of appliance- 8 1/4" (210mm) to the top of applianceCombustible Appliance finishing:- 0" (0mm) above the appliance opening- 50" (127cm) from bottom of appliance to enclosure top- 62 1/4" (158.2cm) from bottom of appliance to ceiling- 3" (76mm) to top of vent pipe*- 2" (51mm) to sides and bottom of vent pipe*- 0" (0mm) to the sides and top of applianceIt is best to frame your appliance after it is positioned and the vent system is installed.When roughing in the appliance, raise the appliance to accommodate for the thickness of the finished floor materi-als, i.e. tile, carpeting and hard wood.*HORIZONTAL VENT SECTIONS: A minimum clearance of 3" (76mm) to the top and 2" (51mm) to the sides andbottom of the vent pipe on all horizontal runs to combustibles is required, see "minimum clearance to combustibleenclosures" section. Use firestop assembly W010-3210. If reduced to 4/7", use W010-3440 firestop.*VERTICAL VENT SECTIONS: A minimum of 2" (51mm) all around the vent pipe on all vertical runs tocombustibles is required. Use firestop spacer W010-3210.! WARNING• Risk of fire!• In order to avoid the possibility of exposed insulation or vapour barrier coming in contact with the appliancebody, it is recommended that the walls of the appliance enclosure be “finished” (i.e. drywall / sheetrock),as you would finish any other outside wall of a home. This will ensure that clearance to combustibles ismaintained within the cavity.• Do not notch the framing around the appliance stand offs. Failure to maintain air space clearance may causeover heating and fire. Prevent contact with sagging or loose insulation or framing and other combustiblematerials. Block opening into the chase to prevent entry of blown-in insulation. Make sure insulation andother materials are secured.• When constructing the enclosure, allow for fi nishing material thickness to maintain clearances. Framing orfi nishing material closer than the minimums listed must be constructed entirely of non-combustible materials.Materials consisting entirely of steel, iron, brick, tile, concrete, slate, glass or plasters, or any combinationthereof are suitable. Materials that are reported as passing ASTM E136, standard test method for behaviourof materials in a vertical tube furnace at 1382ºF (750ºC) and UL763 shall be considered non-combustiblematerials.• Minimum clearance to combusibles must be maintained or a serious fire hazard could result.• The appliance requires a minimum enclosure height. Measure from the appliance base.• If steel stud framing kits with cement board are provided, or specified in the installation instructions, theymust be installed.• If specified in the installation instruction, finishing must be done using a non-combustible board, ceramic tile,marble, etc. Do NOT use wood or drywall. Any fire rated drywall is not acceptable.When using optional finishing accessories, the framing dimensions and finishing materials may differ fromwhat is outlined in the section below; refer to the leaflet instructions supplied in the accessory kit for specificframing and finishing specifications.44.1note:The minimum clearances around the horizontal vent pipe to combustible materials may be reduced from 3"(76.2mm) / 2" (50.8mm) to 1" (25mm) in those installations with a minimum 52" (132cm) vertical vent rise madeimmediately off the appliance collar and where the vent has been reduced to 4/7" from 5/8" at the appliancecollars.note: