Wellington · Manual J & D Design
Manual J Load Calculation & Manual D Duct Design in Wellington, FL
In-house Manual J load calculations and Manual D duct designs, so your system is right-sized and every room gets the air it needs. Serving Wellington, FL. 4.8★ on Google with 229+ reviews.
18+
Years in business
4.8★
229+ Google reviews
Licensed
FL #CAC1820211
A+
BBB Accredited
24 / 7
Emergency response
Why Swift AC
What you get with our manual j load calculation & manual d duct design.
Four things we don't compromise on, every job, every customer.
Why this matters
Built for the home you live in.
Your AC is not a piece of equipment. It is the difference between kids sleeping through hot August nights and a hallway fan war at 2 a.m.
We treat every install and repair the way we would want our own family taken care of. Properly sized systems. Honest diagnostics. Clean work that lasts. Because the people you love deserve a home that stays cool, dry, and comfortable, year after year, without you having to think about it.
Why Swift AC
The standard South Florida homeowners trust.
We earn our reputation one job at a time. Every system we install, every repair we make, every customer we serve carries our 100% satisfaction guarantee.
Offers for Wellington customers
Save on quality HVAC service.
Real, simple deals on the work you actually need. No mystery pricing, no bait and switch.
What customers say
4.8★ on Google with 229+ reviews.
We earn our reputation one job at a time. Here's what your neighbors are saying.
“When you are looking for a reliable, quick and honest HVAC team this is the company you want to deal with. Reach out, you will be wowed. Also, they are nice guys and will spend the time to explain your needs.”
David Ragheb
West Palm Beach
...and 226+ more on Google.
Book your manual j & d design in under 30 seconds.
A real Swift AC team member answers, every time. Same-day service across South Florida.
About Wellington
Manual J Load Calculation & Manual D Duct Design in Wellington, FL.
Most Wellington homes are on their second or third air conditioner, and many of those were sized by matching the old unit's tonnage. That carries forward any original sizing mistake and ignores everything that has changed since, like impact windows, a new roof, added attic insulation or an enclosed patio. Swift runs Manual J load calculations in-house for the systems and duct projects we install in Wellington, measuring the house as it is today. Two-story homes make this especially important. Upstairs rooms carry more heat than their square footage suggests, and a load calculation done room by room is the only way to see how much air each floor really needs. From there, a Manual D duct design sizes every run and places the returns so both floors get their share, keeping each bedroom within 3°F of the thermostat. Correct sizing also helps with Wellington's rainy-season humidity, because a right-sized system runs long enough to dry the air.
About this service
Manual J Load Calculation & Manual D Duct Design in Wellington
Most air conditioners in South Florida were sized with a rule of thumb, so many tons for so many square feet, or simply matched to the unit they replaced. That shortcut ignores what really drives the load in a Florida home: window area and direction, glass type, shading, insulation, ceiling heights, duct location, air leakage and the moisture the system has to remove. An oversized system cools fast, shuts off and leaves the house clammy. An undersized one runs nonstop. And without a duct design, even a perfectly sized system can't get the right amount of air to each room.
Swift Air Conditioning does this work in-house, using the ACCA standards. Manual J is the room-by-room heating and cooling load calculation. Manual S uses those loads to select equipment with the right capacity and enough moisture removal for our climate. Manual D designs the duct system, sizing each supply, trunk and return so the blower can deliver the airflow each room needs. Manual T guides the choice of registers and grilles so the air mixes well in every room.
The design target is the comfort guideline in ACCA's Manual RS: each room within 3°F of the thermostat while cooling. We build every replacement and duct project to the design, then measure airflow and temperatures after installation to confirm it performs.
Florida's energy code calls for heating and cooling equipment in new homes to be sized with Manual S from a Manual J load calculation, and the residential code points to Manual D for duct design. We bring the same discipline to replacements, additions and renovations, because it's what makes a home comfortable. Call (561) 685-8408 to schedule an in-home visit.
Ruud Pro Partner
Real Swift work in Wellington.
Watch what to expect when our team shows up. Honest installs, careful technicians, the same standard on every Wellington job.
Neighborhoods we serve
Local areas in Wellington.
Manual J and Manual D design for homes in Olympia, Versailles, Sugar Pond Manor, the neighborhoods near The Mall at Wellington Green and the equestrian district, along Forest Hill Boulevard, Wellington Trace, Big Blue Trace, Lake Worth Road and South Shore Boulevard in Wellington.
Local details
Manual J Load Calculation & Manual D Duct Design details for Wellington.
For a Manual J in Wellington, we measure each room on both floors, record window sizes and directions, check ceiling heights and attic insulation, and locate the air handler and ducts. Rooms under the attic and over the garage get special attention, since they gain the most heat. Upgrades like impact windows or a new roof are entered too. The calculation gives every room a heat and humidity load. Manual S uses those numbers to select equipment with the right capacity and good moisture removal for Wellington's humid summers, and it shows whether one system can handle both floors or whether a separate upstairs system or zoning would be better. Manual D then sizes each supply and return, including a second-floor return when one is missing, and checks the duct system's total resistance against the blower. Manual T guides register choices. We walk you through the design, our installers build to it and we confirm the finished Wellington system with airflow and temperature readings.
Coverage map
Serving Wellington.
Same-day service across every neighborhood and ZIP code below. No travel surcharges.
Neighborhoods we serve
- Olympia
- Versailles
- The Mall at Wellington Green
- Sugar Pond Manor
ZIP codes we cover
2 ZIP codes across Wellington.
Nearby cities
Manual J Load Calculation & Manual D Duct Design in nearby cities.
We service these neighboring cities with the same standard, same response time, and no travel surcharges.
Got questions?
Frequently asked questions
Often it can, if the equipment and ducts are designed for it. A room-by-room Manual J shows the load on each floor, and Manual D sizes the ducts and returns so the upstairs gets enough air. For some Wellington layouts, a separate upstairs system or zoning works better, and the calculation shows which.
That's a common sign. An oversized system cools the air quickly and shuts off before removing much moisture, so the house feels cold and damp. A Manual J load calculation for your Wellington home shows the right capacity, so the next system runs longer cycles that control humidity better.
Yes. Bonus rooms over garages have more exposed surfaces and sit under the hottest part of the attic, so they carry a high load for their size. We calculate them separately and give them properly sized ducts in the Manual D design, which is how those Wellington rooms finally become comfortable.
Manual J is the ACCA standard for calculating how much heating and cooling each room of a home needs. It accounts for walls, windows and their direction, glass type, shading, insulation, ceiling heights, duct location, air leakage and occupants, and it calculates the moisture load as well as the heat load.
Manual J calculates the loads. Manual S selects equipment that matches those loads, including enough moisture removal. Manual D designs the duct system that delivers the right airflow to each room, and Manual T guides register and grille selection. Used together, they produce a system that's sized right and delivers air evenly.
Related services
You might also need...
Air Conditioning Installation
Expert AC installation with top-rated equipment and warranty-backed workmanship.
Learn moreDuct Replacement
Whole-home duct replacement designed in-house with Manual J and Manual D, then sealed, insulated and balanced. Free in-home quote.
Learn moreAirflow Diagnostic & Duct Balancing Assessment
A measured airflow diagnostic for hot and cold rooms: static pressure, room-by-room airflow, duct leakage and thermal imaging, then balancing.
Learn more
Ready when you are
Comfort done right. Let's get started.
Free estimates on installs. Honest diagnostics on repairs. Same-day service across South Florida and a real human on the other end of the line, every time.
Service area
Palm Beach · Broward · Martin · St. Lucie
Licensed FL #CAC1820211