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Velocity Duct Sizing Chart Residential Main Supply Trunk Ducts, Non-zoned systems (target velocity of 800FPM used) Listed by air quantity, round duct size and nearest square duct size 500CFM 11"Ø or 10 X 10 1,300CFM 16"Ø or 14 X 16 600CFM 12"Ø or 10 X 12 1,400CFM 18"Ø or 16 X 16 HVAC DUCTULATOR PDF August 6, 2019 Air Duct and HVAC Slide Charts. Superheat and We have produced many different HVAC calculators. " x 11″ Air Duct Wizard Ductulator; 5″ x " Duct . Air Duct Calculator / Ductulator with Sleeve. +. HVAC Tables, Equations & Rules of Thumb Quick-Card. +. SuperCool Slide Rule by SuperCool Slide Rule. This chart can be used to select initial sizes of ducts during de­ sign. Designers using the equal friction approach often rely on this chart to select the.initial and final sizes of the ducts. The Fundamentals Handbook states that the best economical designs will have duct sizes selected with frictional losses within the dark bana of Figure 1. PRODUCT DETAILS. AIR DUCT SLIDE RULE CALCULATOR. Size: 4"x9.25". Material: Heavyweight coated calculator board. Production: Each order is custom manufactured with your company information and in your choice of colors. AIR DUCT WIZARD DUCTULATORS. Size: 8.5"x11" card with a 7.25" wheel. Materials: Heavyweight coated calculator board. HVAC DUCTULATOR PDF Air Duct and HVAC Slide Charts. Superheat and We have produced many different HVAC calculators. " x 11″ Air Duct Wizard Ductulator; 5″ x " Duct . Air Duct Calculator / Ductulator with Sleeve. +. HVAC Tables, Equations & Rules of Thumb Quick-Card. +. SuperCool Slide Rule by SuperCool Slide Rule. For professional reports, use this electronic psychrometric chart tool. Click to download this program to your PC. These charts focus on the range of temperatures most suitable for comfort-cooling HVAC applications, and include the Trane coil curves, which depict the condition of the air leaving a cooling coil. Air Duct and HVAC Slide Charts. Superheat and We have produced many different HVAC calculators. " x 11″ Air Duct Wizard Ductulator; 5″ x " Duct . Air Duct Calculator / Ductulator with Sleeve. +. HVAC Tables, Equations & Rules of Thumb Quick-Card. +. SuperCool Slide Rule by SuperCool Slide Rule. Now that you know how to read the chart, the following is a step-by-step process on how to calculate duct size using the duct friction loss chart: 1. Fix the Friction Loss at 0.1 in.wg. Fix the friction loss at 0.1 in.wg. Low friction loss reduces the fan cost but increases the duct cost. 2. Enter flow rate (L/s) and duct diameter (mm) to begin sizing BACK TO TOP QUICK-GUIDE Select the duct material from the drop-down list (most duct sizing tools are typically based on galvanised steel ducting by default) Enter the air flowrate in litres/second (can change to cubic metres/second by use of drop-down to the right of the input) That's why HVAC professionals have charts and tools at their disposal to make the whole process go smoother. What you will need to know to calculate ductwork sizing for your home: Square footage of your home. Square footage of each individual room in your home. Cubic feet per minute calculations (explained below.) Duct Size Friction Loss Rate 11.3 Aspect Ratio . 11.4 Standard Duct Sizes . 11.5 Duct Fabrication and Lengths 11.6 Duct Ha