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Фрагмент инструкции
Draw a line parallel to the back wall through this mark. (Fig. 11) Using a plumb bob positioned directly over center point of fireplace flue collar, mark the ceiling to establish the chimney center point. (Fig. 11) 8..." (210mm) FP556 Fig. 11 Locate centerline of chimney with plumb line. Chimney Centerline Actual Centerpoint Plumb Line Plumb Bob Imaginary Centerpoint Offset Installation In order to clear an obstruction, it may be necessary to offset chimney from vertical. This is accomplished by using CFM Corporation elbows. Use the 30° Offset Elbow table on Page 6 to determine proper offset and parts required. Each offset requires two (2) elbows. The second elbow is equipped with support straps. It is very important to install the second elbow in each offset as close to the ceiling or support as possible so that the elbow straps can be secured to framing members to help support the weight of the chimney. Determine offset distance of your chimney arrangement from centerline of fireplace to centerline of chimney where it is to pass through ceiling. Locate center point of the chimney on ceiling as though a straight up chimney arrangement is to be used. Measure your offset dimension from straight up chimney center point on ceiling. Ceiling Chimney Hole/ Possible Obstructions The size of the hole in ceiling will vary with the angle at which the chimney passes through ceiling. Drive a nail up through ceiling at marked chimney center point. Go to floor above and see where hole will be cut. Check to see where existing ceiling joists and other possible obstructions are located...i.e. wiring, plumbing etc... If necessary, re-position chimney and/or fireplace to avoid obstructions. Cutting the Hole Cover fireplace collar opening and cut proper sized chimney hole in chimney. The SK8 pipe allows you to run pipe through a typical 16” on center joist without cutting joists. Framing the Ceiling Hole Frame the ceiling chimney hole as shown in Figure 12. It is good practice to use framing lumber that is the same size as the ceiling joists; this is a requirement at attic level. ABABA "SK" Series framing = 14..." X 14..." (368 x 368mm) B "S" Series framing = 17..." X 17..." (445 x 445mm) Existing Ceiling Joists Ceiling New Framing Members Chimney Hole FP551 Fig. 12 Typical frame for ceiling chimney hole. 10 7412944 Majestic Fireplaces® BR/BC Series The following table gives firestop spacer model numbers: Installing Outside Air Kit Size of Chimney Angle of Chimney at Ceiling Vertical 30° 8" Flue "SK" Series SKFS2A 14..." x 14..." (368 mm x 368 mm) SKFS6A 14..." x 25..." (368 mm x 648 mm) 8" Flue "S" Series 3-Wall FS2A 17..." x 17..." (445 mm x 445 mm) FS6A 17..." x 29..." (454 mm x 753 mm) Fig. 13 Ceiling chimney hole sizes necessary for installing firestop spacer. The inside dimension of the frame must be the same as the hole size selected from Figure 13 in order to provide the required 1..." (38 mm) of air space between the outside diameter of the chimney and the edges of the framed ceiling hole. Positioning, Safety Strips, Securing the Fireplace Slide fireplace into position. Lift the fireplace front slightly and slide the metal safety strips under front bottom edge about 1..." (38 mm), allowing the remainder to extend in front of firebox. Overlap strips at least 1/2" (13 mm) to provide a positive An outside air kit is installed in all BR/BC Series Fireplaces. If desired, or if local codes mandate the use of an air kit, then an AK-MST is required to complete the installation (from air kit to the outdoors). If the outside air kit is to be used, the AK-MST MUST be installed BEFORE the fireplace is enclosed. Refer to the AK-MST instructions for field installation. ..." (13mm) Min. Overlap1..." (38mm) "Z" SafetyStrip Fire- Place Plat- Form Hearth Ext. (not supplied) FP557 Fig. 14 Safety strip installation. Metal Safety Strip (1,2 or 3 pieces) joint. (Flat safety strips are packed with fireplace.) (Fig. 14) Safety strips are used to ensure that any combustible materials in front of the fireplace are protected even though a noncombustible hearth extension is required. If fireplace is to be elevated above the floor, a “Z” shaped metal safety strip must be fabricated and used to protect combustible surfaces in front of the fireplace. This “Z” shaped safety strip is not provided but must be fabricated of metal with each horizontal leg at least 1..." (38mm) wide and equal in length to the metals strips provided with the fireplace. Note: Safety strips are not required over noncombustible floors where all supports at the base of the fireplace are noncombustible. Four (4) nailing flanges are supplied with the fireplace (found on the fireplace hearth). To level the box and secure it firmly in place, remove the nailing flanges from the hearth and install at the sides of the fireplace as shown in Figure 15. FP549 Fig. 15 Fasten fireplace in position. Nail Top Standoffs Nail Side- Nailing Flanges 7412944 11 Majestic Fireplaces® BR/BC Series...
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