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Manafacture: Vermont Casting File size: 4.03 mb File name: Language of manual:

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 and proper drainage as per local codes. Leave 2” (51 mm) clearance below snorkel to prevent water from entering the snorkel termination. Do not enclose the snorkel within a wall or other type of enclosure and do not back fill. Ensure that grade level slopes away from the building. (Fig. 40) Vertical Installation (Fig. 44) 1. Determine the location of the appliance. Choose a location which provides adequate clearance from obstacles such as electrical wiring, conduit, framing members, plumbing pipe, etc. 2. After positioning the appliance, determine where the vent pipe will pass through the ceiling. This can be done by using a plum bob or a small weight attached to a string. Hold the plum bob from the ceiling moving it until it lines up with the centerline of the outlet of the appliance. Mark the position on the ceiling. NOTE: Frame openings to the dimensions specified in the framing table for the cathedral ceiling support box (CCS), the ceiling support (SC) and wherever the firestop spacer (FS) is being used. 3. Cut and frame the appropriate sized square hole through the ceiling. Repeat the process for other ceiling penetrations as necessary. 4. Determine and mark the roof penetration in the same manner. 5. Cut a hole in the roof at this point large enough to satisfy all clearance-to-combustible requirements as specified by the appliance manufacturer’s installation instructions. 6. Install the ceiling support cathedral ceiling support box assembly, as appropriate. Vertical Termination Approved Silicone Sealant Here Storm Collar Flashing Offset Support Collar Firestop Spacer Ceiling Support Collar Ceiling Support Plate Trim Plate ST933 Fig. 44 Typical vertical venting configuration. 7. Determine the distance from the appliance outlet to a point just above [approximately 12” (305 mm) to 24” (610 mm)] either the cathedral ceiling support box or ......... the ceiling support plate and assemble lengths of pipe ............................................... to satisfy this distance. Do not attach assembly to appli ance. 8. Loosely position the support collar around the assembled lengths (flared end down). 9. From above, lower the assembled pipe sections down th...

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