valutazioni - 5, GPA: 4.2
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3. All gravity air intakes within 3 feet of a termination cap must be a minimum of 1 foot below the termination cap. Figure 4.4 Minimum Clearances for Termination N = 6 inches ..................non-vinyl sidewalls 12 inches ................vinyl sidewalls P = 8 ft. QMIN RMAX 1 cap 3 feet 2 x Q ACTUAL 2 caps 6 feet 1 x Q ACTUAL 3 caps 9 feet 2/3 x Q ACTUAL 4 caps 12 feet 1/2 x Q ACTUAL QMIN = # termination caps x 3 RMAX = (2 / # termination caps) x QACTUAL Alcove Applications NOTE 3: Local codes or regulations may require different clearances. NOTE 4: Termination caps may be hot. Consider their proximity to doors or other traffi c areas. NOTE 5: Location of the vent termination must not interfere with access to the electrical service. WARNING: In the U.S: Vent system termination is NOT permitted in screened porches. You must follow side wall, overhang and ground clearances as stated in the instructions. In Canada: Vent system termination is NOT permitted in screened porches. Vent system termination is permitted in porch areas with two or more sides open. You must follow all side walls, overhang and ground clearances as stated in the instructions. Heat & Glo assumes no responsibility for the improper performance of the appliance when the venting system does not meet these requirements. CAUTION: IF EXTERIOR WALLS ARE FINISHED WITH VINYL SIDING, IT IS SUGGESTED THAT A VINYL PROTECTOR KIT BE INSTALLED. Heat & Glo • Crescent II • 2083-902 Rev. L • 7/08 5 55 Vent Information and Diagrams A. Vent Table Key The abbreviations listed in this vent table key are used in the vent diagrams. Symbol Description V1 First section (closest to appliance) of vertical length V2 Second section of vertical length H1 First section (closest to appliance) of horizontal length H2 Second section of horizontal length WARNING Fire Hazard. Explosion Risk. Asphyxiation Risk. Do NOT connect this gas appliance to a chimney flue serving a separate solid-fuel or gas burning appliance. • Vent this appliance directly outside. • Use separate vent system for this appliance. May impair safe operation of this appliance or other appliances connected to the flue. B. Use of Elbows CAUTION ALL vent configuration specifications MUST be followed. • This product is tested and listed to these specifications. • Appliance performance will suffer if specifications are not followed. Diagonal runs have both vertical and horizontal vent aspects when calculating the effects. Use the rise for the vertical aspect and the run for the horizontal aspect (see Figure 5.1). Two 45. elbows may be used in place of one 90. elbow. On 45. runs, one foot of diagonal is equal to 8.5 inches horizontal run and 8.5 inches vertical run. A length of straight pipe is allowed between two 45. elbows (see Figure 5.1). Figure 5.1 Horizontal Vertical 8-1/2 in. 8-1/2 in.12 in. C. Measuring Standards Vertical and horizontal measurements listed in the vent diagrams were made using the following standards. 1. Pipe measurements are shown using the effective length of pipe (see Figure 5.2). 2. Measurements are made from the appliance outer wrap, not from the standoffs. 3. Horizontal terminations are measured to the outside mounting surface (flange of termination cap) (see Figure 4.1). 4. Vertical terminations are measured to bottom of termination cap. 5. Horizontal pipe installed level with no rise. Figure 5.2 DVP Pipe Effective Length Effective Height/Length Pipe Effective Length Inches Millimeters DVP4 4 102 DVP6 6 152 DVP12 12 305 DVP24 24 610 DVP36 36 914 DVP48 48 1219 DVP6A 3 to 6 76 to 152 DVP12A 3 to 12 76 to 305 DVP12MI 3 to 12 76 to 305 DVP24MI 3 to 24 76 to 610 Heat & Glo • Crescent II • 2083-902 Rev. L • 7/08 Heat & Glo • Crescent II • 2083-902 Rev. L • 7/08 13 H1 V1 Figure 5.3 Figure 5.4 D. Vent Diagrams 1. Top Vent - Horizontal Termination One Elbow Two Elbows INSTALLED HORIZONTALLY H1 H2 V1 Fire Risk. Explosion Risk. Do NOT pack insulation or other combustibles between ceiling fi restops. • ALWAYS maintain specifi ed clearances around venting and fi restop systems. • Install wall shield and ceiling fi restops as specifi ed. Failure to keep insulation or other material away from vent pipe may cause fi re. WARNING V1 Minimum H1 Maximum Elbow only 2 ft 610 mm 6 in 152 mm 2 ft 610 mm 1 1/2 ft 457 mm 3 ft 914 mm 2 1/2 ft 762 mm 5 ft 1.5 m 3 1/2 ft 1067 mm 7 ft 2.1 m 4 1/2 ft 1.4 m 15 ft 4.6 m V1 + H1 = 38 ft (11.6 m) Maximum H1 = 15 ft (4.6 m) Maximum V1 Minimum H1 + H2 Maximum 2 - 90. Elbows back to back Cannot do 6 in 152 mm 2 610 mm 1 1/2 ft 457 mm 3 ft 914 mm 2 1/2 ft 762 mm 5 ft 1.5 m 3 1/2 ft 1067 mm 7 ft 2.1 m 4 1/2 ft 1.4 m 15 ft 4.6 m V1 + H1+ H2 = 38 ft (11.6 m) Maximum H1 + H2 = 15 ft (4.6 m) Maximum 14 Heat & Glo • Crescent II • 2083-902 Rev. L • 7/08 Figure 5.5 1. Top Vent - Horizontal Termination - (continued) Three Elbows H2 H1 V2 V1 V1 Min. H1 Max. V2 Min. H2 Max. Elbow only 2 ft 610 mm * = V 2 1-1/2 ft 457 mm 2 ft 610 mm * = V 2 1-1/2 ft 457 mm 3 ft 914 mm * = V 2 2-1/2 ...