Assessments - 3, GPA: 4.7
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• Approved vent systems must terminate above and including the heavy line in Figure 7. • Two 45. elbows may be substituted for each single 90. elbow. • With a rise between 2’ - 5’, one 90. or two 45. elbows may be used. .................................................................................................................................. Vertical Run (in feet)(Measured from the appliance flue collar to the top of the vent pipe.) Horizontal Run (in feet) ................................................................................ ST134a May use up to three 90° Elbows One 90° Elbow Unacceptable Venting Configuration Fig. 7 Horizontal vent termination window. Radiance Direct Vent Gas Heater Vertical Termination Restrictor Plate Adjustment for Extended Pipe Runs A vertical vent system must terminate no less than 8’ (2.44 m) and no more than 40’ (12 m) above the appliance flue collar. A restrictor plate (supplied) must be used, where specified, in all vertically terminated vent systems. (Refer to Figure 8) NOTE: The restrictor plate supplied with the vertical termination should be discarded. Adjust the restrictor plate according to recommendations in Figure 10. A vertically terminated vent system must also conform to the following criteria: • No more than three 90° elbows may be used. • Two 45° elbows may be substituted for one 90. elbow. No more than six 45° elbows may be used. • Vent must rise a minimum of 2 feet (305 mm) before offset is used. • Termination height must conform to roof clearance The Radiance stove is shipped with a restrictor plate in the Parts Bag. Adjustments can be made by loosening the adjustment screw to allow the restrictor plate to slide up or down. (Fig. 9) A guide for usage is shown in Figure 10. NOTE: Some installations may require some adjustment by the installer for optimum flame appearance. Optimum flame appearance is a flame that is not subject to tall, dirty yellow flames producing soot or flames lifting off of the ember bed ports. Restrictor Plate Adjustment 1. Remove the screw in the back wall of the firebox. 2. Install restrictor plate as shown in Figure 9 with cut out on left side. Secure with adjustment screw. 2. Measure from center of screw to top edge of diverter as specified in Figure 11. .................................................................................................................................. Vertical Run (in feet)(Measure from the appliance flue collar to the top of the vent pipe.) Horizontal Run (in feet) ................................................................................ ST132a All Vertical Termi- nations in this area Require use of the Restrictor Plate* Vertical terminations must be within this area No offset may be used within this area Unacceptable Venting Configuration No Restrictor Plate (Fig. 9) to adjust plate according to guidelines in Figure 10. 3. Tighten attachment screw. 4. Install logs following log installation instructions. ST917 restrictor plate6/07 Adjustment Screw ST917 Fig. 9 Loosen screw to adjust restrictor plate. Examples for Extended Run/Restrictor Plate Settings 1. Vertical 20’ (6 m), 90° elbow, out 8’ (2.4 m) 2. Vertical 11’ (3.4 m), 90° elbow, out 2’ (610 mm) 3. Vertical 40’ (12 m) 4. Vertical 5’ (1.5 m), 90° elbow, out 5’ (1.5 m) Restrictor plate measurement from top of plate to center of screw: 1. 2...” (70 mm) from center of screw to top edge of plate 2. Plate down to top of slot 3. Plate down to top of slot Fig. 8 Vertical vent termination window. 4. 2...” (60 mm) from center of screw to top edge of plate *The Restictor Plate is used on Direct Vent Figure 10 installations only. Radiance Direct Vent Gas Heater Vent Termination Clearances When planning the installation, consider the location of the vent terminal and clearances. Some of the most common clearances to keep in mind are shown in Figure 11. Important: All vent clearances must be maintained. Check your vent termination clearances against Figures 11 through 13. The vent should be placed so that people cannot be burned by accidentally touching the vent surfaces when the stove is operating. The vent termination should be located where it cannot be damaged by such things as automobile doors, lawn mowers or snowblowers and it should be located away from areas where it could become blocked by snow, etc. Some considerations are: • Obstructions or impediments to venting. • Nearby combustible materials that could come into contact with combustion exhaust gases. • Other nearby openings {within 12” (305 mm)} through which exhaust gas could reenter the building. • All vegetation within 3’ (76 mm) that may interfere with the draft. Other factors that influence where the installation will be sited include the location of outside walls, where additional heat may be desired in the home, where the family members gather most regularly, and perhaps most importantly, the distance limitations of the venting system. IMPORTANT • The horizontal termina...
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