Sample HVAC Design Package

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Every project is different, and a quick conversation up front helps make sure your Manual J, S & D design starts on the right foot. Your free consultation is a chance to walk through your project, ask questions, and find out exactly what we'll need from you to get started.

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What Our Customers Say

I knew I needed new ductwork and that I would need to buy a new unit in the next few years. To avoid getting swindled, I decided to get unbiased information from a consultant who would not be selling me equipment. David Brown and ConsultAir came highly recommended and I have not been disappointed. David created Manual J, S and D reports and a duct system layout, with quick replies that include thorough and easy-to-understand answers. As I gathered my first quotes from HVAC contractors, I got pushback on using a consultant’s drawings – some refused, others offered elaborate sales routines and scare tactics to persuade me to use their own drawings and equipment instead. I contacted David with questions about what I was experiencing, and he confirmed my suspicions about one contractor and offered additional guidance so I felt fully armed going into additional quotes.

SM Axland – via Google Review

If you are thinking of doing any kind of heating or cooling in your home don’t take a chance by trusting the local HVAC person. They have one agenda… To sell you an overpriced system and get the job done as quickly as possible. I learned this because I had 5 different bids and 5 different sized systems from each installer. How could this be I wondered? Well…it turns out that there is a real, systemic, and calculated way of finding out how big of a system you need for your home. There are manuals and load calculations that can be done to properly size your system. After much searching on Google I stumbled upon David Brown and ConsultAir. He was the person I was searching for. He did all the load calculations, the calculations for the ductwork and even offered some very helpful tips along the way. David should be your first call when looking to install a system. I cannot recommend him highly enough. Thanks David!!!

Timothy McNeely – Bakersfield, California

I contacted David Brown at ConsultAir with a somewhat complicated HVAC project. Even though he is in Florida and I'm in Washington State, I was confident I had found someone good when local contractors in my area gave him a very positive two thumbs up. David was very courteous and fun to work with, and he was spot on working with me from a technical point of view from clear across the country. Even as a non-HVAC guy I could follow him well, and I never once recalled hearing a word suggesting impatience. The final product is quite reasonably priced and very well laid out for duct installers to follow. I would guess I will save at least $1000 per year or greater by doing this right. Thanks David for coming through with the product you promised.

Bob LeClair – via Google Review

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Home » Residential HVAC Design & Construction Knowledge Center » Sample HVAC Design Package

Sample HVAC Design Package – See Exactly What a Completed Manual J, S & D Delivery Includes

Every ConsultAir HVAC design includes a full set of ACCA-compliant reports and drawings, covering everything from the initial load calculations to the final duct layout. To give you a real look at what that includes, we’re sharing the complete design package from an actual custom home project. All client and property information has been removed, but everything else in the package, including the calculations, equipment selection, and duct design, is exactly as it was delivered.

Zoning Plan

The zoning plan shows how the various spaces within a home are divided among the project’s HVAC systems, indicating exactly which rooms and areas each system is responsible for conditioning.

Duct Plan

This is the to-scale duct system plan that puts the Manual D calculations into drawing form, showing the installing contractor exactly where every duct, register, and piece of equipment goes.

Manual J Load Calculation

This is the starting point and foundation of the entire HVAC design. Manual J calculates the actual heating and cooling loads for the entire home as well as for every room, based on the home’s specific construction, insulation, window types, orientation, and local climate data, not a rule-of-thumb estimate. Every decision that follows, equipment size and duct design, is built on these numbers.

Manual S Equipment Sizing

This is the Manual S report, which confirms that the selected equipment’s rated capacity fits within the heat loads calculated by Manual J.

Manual D Duct Design

Manual D determines how conditioned air actually gets delivered to every room, calculating the correct duct sizes, static pressure, and airflow needed so each room gets the amount of heating and cooling it was designed for.

Want a complete HVAC design package like this one for your project? Contact Us to get started, or learn more about how the process works.

One more thing worth knowing: your finished design package is worth keeping. File it with your other home records; it’s useful for future remodels and duct work, and at resale, it’s real evidence your system was professionally sized rather than installed by rule of thumb.

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