Jenn-Air JGD8130ADS Dimension Guide - Page 3

www.dexpress.com DIMENSION EXPRESS Fax on Demand (775) 833-3600 Page 3 This Data Sheet Includes Information On Jenn-Air • Product Model Number (s): • 30" Convertible Cooktops: JGD8130ADW, JGD8130ADS and JGD8130ADB Additional Information: Ducting Installation Guidelines Unit is rated at a maximum of 60 feet of straight duct, 300CFM of "make-up" is required. The blower has 2 range settings; Low range is used when equivalent duct length is up to 30 feet and high range is used when equivalent duct length is between 31 and 60 feet. 1. Use 6" diameter round or 3 1/4" x 10" rectangular only, except for equivalent duct lengths of 10 feet or less that vent straight out the back of the cooktop and directly through the wall. Equivalent duct lengths of 10 feet or less can use 5" round duct. A transition from 5" round duct is necessary when connecting to 6" round or 3 1/4" x 10" duct. 2. Do not use 5" elbows except in a 5" system. Instead use a 5" to 6" transition followed by a 6" elbow, or a 5" to 3 1/4" x 10" elbow transition. 3. Use quality metal duct of at least 26 gauge galvanized or 24 gauge aluminum. Inferior quality pipe fittings can cause up to twice the restriction and is a poor value. 6" diameter PVC sewer pipe can be used for under slab installations. Local codes may require a heavier gauge material or restrict PVC. Check your local codes. 4. Distance between adjacent fittings (elbows, transitions etc.) should be at least 18". The farther the better. Closer distance promotes turbulence which reduces airflow. 5. The number of downstream elbows or transitions should be limited to three. The initial 5" to 6" straight transition, if used, need not be counted in this number. 6. Handmade crimps are likely to cause restrictions. 7. If an alternate wall or roof cap is used, be certain duct size is not reduced, and there is a backdraft damper. It is best to use listed caps to be certain of proper performance. 8. Thermal breaks: In areas of extreme cold weather, it may be necessary to provide a short length of nonmetallic duct as close to the wall as possible, to prevent conduction along the metal duct. 9. High altitude installations: It is advisable to reduce allowable duct run by 20%. 10. In Canada, the installation must conform with local codes. 11. Elbows, wall caps and other fittings are shown below with their equivalent straight duct length. Each fitting value must be added to the amount of straight duct length used, to determine overall straight duct equivalent length (60 feet maximum). 12. When using flexible duct multiply length of flexible duct by 2. Duct Equivalents Equivalent Length 5 feet Duct Fitting 6" 90° Elbow Part Number Part Number Duct Fitting 6" 45° Elbow Equivalent Length 2 1/2 feet 5 feet 12 feet 0 feet 0 feet 0 feet 2 feet 3 1/4" x 10" Elbow 3 1/4" x 10" Flat Elbow 5" and 6" 5": A405 Wall Caps 6": A406 3 1/4" x 10" A403 Wall Cap 10" x 10" Legh: 5950 Roof Jack JA: 701943 5" and 6" 5": 708786 Thermal 6": 715557 Break A456 5" to 6" Transition A496 A496 A463 A463 A495 6" to 3 1/4" x 10" 90° Elbow 3 1/4" x 10" to 6" 90° Elbow 6" to 3 1/4" x 10" Transition 3 1/4" x 10" to 6" Transition 5" to 3 1/4" x 10" 90° Elbow 1 foot Air flow this direction NOT recommended 5 feet 9 feet 1 foot 4 1/2 feet 6 feet Air flow this direction NOT recommended Air Flow Air Flow Air Flow Air Flow Air Flow Air Flow Subject to change without notice. This system is designed to be updated daily if necessary. Dimension Express is not responsible for use of superseded, voided, or outdated data sheets. Because of the difficulty or impracticability of determining actual damages, liability of Dimension Express shall not exceed $50.00. Copyright © Dimension Express, 2002. 150 • NEVER reuse Data Sheets. Data Sheets are subject to change without notice. Dimension Express is a FREE service bureau and is updated daily, it makes far more sense to spend the time necessary to request new Data Sheets for each project, as opposed to the problems, time, costs, and risks associated with reusing old Data Sheets. • Call Dimension Express if you have any questions at (775) 833-3633 • • Always refer to a current Code at a Glance or manufacturer directory • • Data Sheet codes change on the first of odd numbered months at 12:01am • BN182.34 • A321B149C150 • • 032603 • 95657 • 67301