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Resumen del manual
Refer to the appliance manufacturer’s installation instructions for clearance to combustible requirements, termination options, number of elbows, maximum length, etc. Then position the appliance and plan vent routing accordingly. Consider locating the appliance in a place where there will be no interference with wall studs, electrical wiring, conduit, plumbing pipe or other obstructions. The termination should be located at least 12” (305 mm) (Fig. 40) above grade, remain above the snow line in geographical areas that accumulate snow and be away ......... ....................................... Radiance Direct Vent Gas Heater from traffic areas such as walkways if it is less than 7’ (2.1 m) high. Refer to Pages 10, 11, Figures 11, 12 for more detail. Snorkel Termination Window Well 12” (305 mm) Minimum Clearance Above Grade Level to Air Intake Grade Level Sloped Away From Building Adequate Drainage as per Local Codes Maintain 2” (51 mm) Clearance Below Snorkel ST929 Fig. 41 Wall thimble. Fig. 40 Below grade installation. Wall Thimble Shield Seal with RTV Silicone Sealant on Exterior side here (around perimeter) Wall Thimble Shield Wall Thimble Face Plate Wall Thimble Face Plate ST930 2. Assemble the pipe (and elbow if using) and attach it to the appliance. Plan for a level to 1/4” per foot rise (6 mm per 305 mm) (from inlet to outlet) in the horizontal .......... system if not specified by the appliance manufacturer. ......................... Horizontal runs should be supported every 4’ (122 cm). 3. Push the appliance near the desired location. Determine the centerpoint of the penetration by locating the centerline of the outlet of the pipe with respect to the wall. 4. Frame an opening to the dimension specified in the .......................................................... Horizontal Termination ST931 Framing Dimension Table 1. Ensure the centerline of the pipe lines up with the center of the prepared opening unless otherwise specified by the appliance manufacturer. NOTE: As a general rule, the wall thimble is optional in the U.S. However, there may be some manufacturers that require it. Contact the appliance manufacturer for information if uncertain. When installed in Canada, a wall thimble is required on all installations in which the vent passes through a combustible wall. 5. If required, install the outside half of the wall thimble (WT) through the opening and screw or nail in place. (Fig. 41) Seal around the perimeter of the thimble face plate on the exterior wall using an RTV silicone sealant to provide protection from possible rain infiltration. (Fig. 41) NOTE: The wall thimble accommodates wall thicknesses of 4...” (114 mm) to 7...” (191 mm). If a larger range is needed due to a thicker wall, it is permissible to field fabricate a metal sleeve extension and attach it to the shields. 6. Install the horizontal termination to the exterior wall using four (4) all purpose screws through the holes located at each corner of the termination. Make sure the arrow (embossed on the front of the termination) is pointing up. (Fig. 42) If the house has vinyl siding, 20012697 Fig. 42 Horizontal termination. a Vinyl Siding Standoff (VS) must be installed prior to installing the horizontal termination. Refer to the appli .......... ance manufacturer to determine if one is recommend ................................................. ed. Attach the vinyl siding standoff to the exterior side of the wall (making sure it is level and centered with respect to the opening) with screws (provided) at each corner of the standoff. Attach the horizontal termination to the standoff. (Fig. 43) Vinyl Siding Standoff Horizontal Termination ST932 Fig. 43 Vinyl siding standoff and horizontal termination. ST932 Selkirk standoff 6/07 Radiance Direct Vent Gas Heater If the wall is brick or concrete, and contains no combustible material, a 7” (178 mm) round penetration hole is adequate. The wall thimble is not required. The perforated straps of the horizontal termination provide a method of attachment. These can either be threaded through the opening or wall thimble (if used) and screwed to the pipe or removed with a pair of tin snips if not used. Use proper masonry fasteners to attach the horizontal termination to the wall. 7. If a wall thimble is used, push the pipe (which is connected to the appliance) carefully through the wall thimble until the DIRECT-TEMP pipe becomes fully engaged with the horizontal termination. If no thimble is used, place the Trim Plate (TP) on the DIRECT-TEMP pipe. Carefully push the DIRECT-TEMP pipe through the wall until fully engaged with the horizontal termination. Secure the trim plate to the wall. NOTE: If a vertical rise is necessary on the exterior side of the building, a 14” (356 mm) and 36” (914 mm) Snorkel Termination (ST) is available. Follow the installation procedures for horizontal terminations. If the snorkel termination is to be located below grade, a window well is recommended with adequate...
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