Assessments - 5, GPA: 4
(
)
)
|
Facilidade de uso
• These vent kits allow for either horizontal or vertical venting of the stove. • The maximum number of 4" fl exible connections is 3 horizontally or three vertically (excluding the stove and the air terminal connections). • When terminating vertically, the minimum vertical rise is 3 feet above the stove and the maximum vertical rise is 40 feet. FIGURE 4. Deviation from the minimum vertical vent length can create diffi culty in burner start-up and/or carboning. Use an adjustable pipe as the fi nal length of rigid piping to the stove for ease of installation. FIGS 6a-b FIGURE 5 HORIZONTAL RUN NOT TO EXCEED VERTICAL RISE • For optimum fl ame appearance and stove performance, keep the vent length and number of elbows to a mini mum. • The air terminal must remain unobstructed at all times. Examine the air terminal at least once a year to verify that it is unobstructed and undamaged. The maximum horizontal run with a 57 inch vertical rise immediately above the stove is 20 feet . FIGURES 6a-b. VENTING VENTING LENGTHS & AIR TERMINAL LOCATIONS For optimum performance, it is recommended that all horizontal runs have a minimum . inch rise per foot. 16 INCHES 3 FEET MINIMUM 40 FEET MAXIMUM FIGURE 4 24” MAX TYPICAL CORNER INSTALL WITH ZERO RISE 10 W415-0547 / B / 05.08.06 USE GD201 PERISCOPE KIT BELOW GRADE INSTALLATION MAXIMUM 10FT VENT LENGTH OF HORIZONTAL REGARDLESS VENT LENGTH 24" MINIMUM 12"MINIMUM Use the GD201 periscope kit to locate the air termination above grade. The periscope must be installed so that when fi nal grading is completed, the bottom air slot is located a minimum of 12 inches above grade. The maximum allowable vent length depends on the fi replace, as illustrated. FIGURES 3 a-c FIGURE 4 TYPICAL VENT INSTALLATIONS SPECIAL VENT INSTALLATIONS 40FT MAX 3FT MIN 16" NOTE: When terminating vertically above 15', the restrictor plate must be in the fully closed position. Refer to Restricting Vertical Vents. PERISCOPE TERMINATION 11 W415-0547 / B / 05.08.06 DEFINITIONS ELBOW VENT LENGTH VALUES HORIZONTAL TERMINATION 0 2.5 5 7.5 10 12.5 15 40 10 20 30 17.5 20 39 REQUIRED VERTICAL R I S E I N FEET (VT) CALCULATED HORIZONTAL VENT RUN PLUS OFFSETS IN FEET (HT) FIGURE 5 45. FIGURE 6 90° H1 H2 when (HT) < (VT) for the following symbols used in the venting calculations and examples are: > - greater than > - equal to or greater than < - less than < - equal to or less than HT - total of both horizontal vent lengths (HR) and offsets (HO) in feet HR - combined horizontal vent lengths in feet HO - offset factor: .03(total degrees of offset - 135°*) in feet VT - combined vertical vent lengths in feet feet inches 1° 0.03 0.5 15° 0.45 6.0 30° 0.9 11.0 45°* 1.35 16.0 90°* 2.7 32.0 * the fi rst 45. and 90° offset has a zero value and is shown in the formula as -45° and -90. respectively or -135. when combined. For vent confi gurations requiring more than one 45. and 90° elbow, the following formulas apply: Formula 1: HT < VT Formula 2: HT + VT < 40 feet Example 1: V1 = 8 ft VT = V1 = 8 ft H1 = 2.5 ft H2 = 2 ft HR = H1 + H2 = 2.5 + 2 = 4.5 ft HO = .03(one 45. elbow + two 90. elbows - 135.) =0.3(225-135.) = 2.7ft HT = HR + HO = 4.5 + 2.7 = 7.2 ft HT + VT = 7.2 +8 =15.2ft Formula 1: HT < VT 7.2 < 8 Formula 2: HT + VT < 40 feet 15.2 < 40 45. 90° Since both formulas are met, this vent confi guration is acceptable. V1 90° The shaded area within the lines represents acceptable values for HT and VT . Simple venting confi guration (only one 45. and 90° elbow) 12 W415-0547 / B / 05.08.06 V1 HORIZONTAL TERMINATION 20 10 0 5 10 15 90 100 120 110 30 40 50 60 70 80 130 140 150 20 See graph to determine the required vertical rise VT for the required horizontal run HT. For vent confi gurations requiring more than one 45. and 90° elbow the following formulas apply: Formula 1: HT < 4.2 VT Formula 2: HT + VT < 24.75 feet FIGURE 7 REQUIRED VERTICAL RISE IN INCHES (VT) HORIZONTAL VENT RUN PLUS OFFSETS IN FEET when (HT) > (VT) Simple venting confi guration (only one 45. and 90° elbow) Example 2: V1 = 4 ft V2 = 1.5 ft VT = V1 + V2 = 4 ft + 1.5 ft = 5.5 ft H1 = 2 ft H2 = 1 ft H3 = 1 ft H4 = 1.5 ft HR = H1 + H2 + H3 + H4 = 2 + 1 + 1 + 1. 5 = 5.5 ft HO = .03(one 45. elbow + three 90. elbow -135.) =.03(315-135)=5.4ft HT = HR + HO = 5.5 +5.4 = 10.9 ft HT + VT = 10.9 + 5.5 = 16.4 ft Formula 1: HT < 4.2 VT 4.2 VT = 4.2 x 5.5 = 23.1 ft 10.9 < 16.8 Formula 2: HT + VT < 24.75 feet 16.4 < 24.75 Since both formulas are met, this vent confi guration is acceptable. H4 90° H3 H1 90° H2 90° FIGURE 8 45° The shaded area within the lines represents acceptable values for HT and VT . V2 13 W415-0547 / B / 05.08.06 VERTICAL TERMINATION V2 = 10 ft VT = V1 + V2 = 5 + 10 = 15 ft H1 = 3 ft H2 = 2.5 ft HR = H1 + H2 = 3 + 2.5 = 5.5 ft HO = .03(one 45. elbow + three 90. elbows - 135.) = .03(45+90+90+90-135)=5.4 HT = HR + HO = 5.5 + 5.4 = 10.9 ft HT + VT = 10.9 + 15 = 25.9 ft Formula 1: HT < VT 10.9 < 15 Formula 2: HT + VT < 40 feet 25.9 < 40 Since both formulas are met, th...