Using Cool Calc's innovative software, LennoxPros Manual J load calculator provides you with the ideal size system or equipment, so your customers save money and stay comfortable year-round. Get better performance and a seamless experience that rivals expensive high-end load calculators — easy to use, flexible, customizable, and free! Many people even know about Manual D, which describes how to design the duct system. Not so many, however, know about the missing links - Manual S and Manual T. If you want a properly designed HVAC system, you have to go through the whole process in all four protocols: J, S, T, and D. (It's easy to remember the order. Elite Software - 30 hvac software programs for all aspects of hvac, plumbing and electrical System Design. Orders: 800-648-9523 Tech Support: 979-690-9420 : Rhvac - Calculate Manual J heating and cooling loads for residential buildings, both block load and room-by-room. Hello everyone, I am looking for a manual J and D load calculation (user friendly) software. I know there is one by (Don Sleeth) HVAC computer ltd. that I have tried (Trial version) and liked it. Thread: Manual J,D. Thread Tools. Show Printable Version; 12-04-2008, 12:24 PM #1. ndiglo. View Profile View Forum Posts SEE Manual J, S & D Pricing. Upfront easy to understand 10 & 14-day HVAC Design Pricing for ACCA Certified Manual J8, Manual S and Manual D services. Price is based on how large the project is and services needed. Certified by ACCA in Manual J, S & D since 2012. Owned by Master's level engineer & leading expert in Manual J, S, D, T, RS & H in Let's say that we want to determine the HVAC load for a residential building that has 1000 square feet, 8 ft tall ceiling, 5 windows, and 2 exterior doors, that is occupied by 3 people. The HVAC load calculations would look like this: 1000 sqft (house surface) x 8 ft (hight of the ceiling) = 8000. 3 (occupants) x 100 = 300. The Manual D is a complete schematic drawing of the duct system including locations and sizes of trunk-lines, branch ducts, outlet registers, an inlet grilles.. Getting a complete Manual D HVAC design done on your property plans is the best way to ensure that your heating and cooling system will deliver maximum comfort at high efficiency.A proper HVAC duct sizing will guarantee that your Perfect for one time or a limited number of HVAC projects. Includes residential load calculator, plus duct sizing, equipment selection and cost analysis software for one low price This software includes all the features and capabilities of the permanent version, however it will expire on your computer 60 days after purchase. Only $49. Our free, easy-to-use HVAC load calculator will help you determine the necessary thermal output capacity (in BTUs) of any residential building. Jun 10, 2013. To properly design and install a forced-air heating and cooling system, your HVAC technician must go by the book when it comes to Manual J and Manual D for an accurate load calculation and an efficient duct system. Only then can you select the right heating and cooling system, using Manual S, that is sized and installed to your Validation codes convert the downloaded demo software into a full retail versions. AccuLoad: ACCA Approved Manual J Residential Load Calculations and ACCA Manual S Equipment Selection program: AccuDuct: ACCA Approved Manual D Duct Design program: Energy Analyzer Manual D Duct Design All duct systems serving all heating, cooling, and ventilation equip