
Royal Palm Beach · Manual J & D Design
Manual J Load Calculation & Manual D Duct Design in Royal Palm Beach, 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 Royal Palm Beach, 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 Royal Palm Beach 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 Royal Palm Beach
Manual J Load Calculation & Manual D Duct Design in Royal Palm Beach, FL.
Royal Palm Beach has a lot of homes on their second or third air conditioner, and many were sized by copying the old unit. In Crestwood and La Mancha, that habit has carried forward sizing choices made more than thirty years ago, even though many of those homes now have impact windows, new roofs or enclosed patios. In Madison Green and Saratoga Lakes, builder-selected systems were often sized on the generous side, which leads to short cycles and sticky air. Swift runs Manual J load calculations in-house for the systems and duct projects we install in Royal Palm Beach, so the equipment fits the house as it stands today. In this humid, inland village, right-sizing matters as much for moisture as for temperature. A correctly sized system runs longer cycles and removes more water from the air. The room-by-room loads also feed a Manual D duct design that delivers the right air to each room and keeps every bedroom within 3°F of the thermostat.

About this service
Manual J Load Calculation & Manual D Duct Design in Royal Palm Beach
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 Royal Palm Beach.
Watch what to expect when our team shows up. Honest installs, careful technicians, the same standard on every Royal Palm Beach job.
Neighborhoods we serve
Local areas in Royal Palm Beach.
Manual J load calculations and Manual D duct design for Royal Palm Beach homes in Crestwood, La Mancha, Madison Green, Saratoga Lakes and along Okeechobee Boulevard, Royal Palm Beach Boulevard, Southern Boulevard, State Road 7 and Crestwood Boulevard, from the lakes near Village Hall to the newer homes near the Wellington line.
Local details
Manual J Load Calculation & Manual D Duct Design details for Royal Palm Beach.
A Royal Palm Beach Manual J begins with measuring each room and recording window sizes, directions and glass types, ceiling heights, attic insulation and where the ducts and air handler sit. Upgrades such as impact windows, a new roof or an enclosed patio are included, since they change the load. The calculation gives every room a heat load and a moisture load. Manual S uses those results to pick equipment with the right capacity and strong humidity removal for an inland home. Manual D then sizes each supply and return duct, places returns so closed bedrooms still get air and checks the total duct resistance against what the blower can handle. Manual T guides register and grille choices so air reaches across each room. The design goes with your quote, and when the Village of Royal Palm Beach permit for an AC replacement asks for system details such as the AHRI certificate, we provide them. After installation, we verify the airflow so the design delivers in your Royal Palm Beach home.
Coverage map
Serving Royal Palm Beach.
Same-day service across every neighborhood and ZIP code below. No travel surcharges.
Neighborhoods we serve
- Madison Green
- Crestwood
- Saratoga Lakes
- La Mancha
ZIP codes we cover
2 ZIP codes across Royal Palm Beach.
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
Not necessarily. Matching the old tonnage carries forward any original sizing mistake and ignores upgrades like impact windows or a new roof. A Manual J for your Royal Palm Beach home calculates the actual load room by room, so the next system is sized for the house you have now.
Each room's size, ceiling height, window area and direction, glass type, insulation, duct location and occupants, plus upgrades like new windows or a roof. For a humid inland area like Royal Palm Beach, it also calculates the moisture load, which guides equipment that keeps the house dry as well as cool.
That's what it's for. Manual D sizes each supply duct for the airflow its room needs and adds return paths so bedrooms aren't cut off when doors close. Many Royal Palm Beach homes never had a real duct design, which is why the back bedrooms lag behind the living area.
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


