Boca Raton · Manual J & D Design
Manual J Load Calculation & Manual D Duct Design in Boca Raton, 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 Boca Raton, 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 Boca Raton 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 Boca Raton
Manual J Load Calculation & Manual D Duct Design in Boca Raton, FL.
Many Boca Raton homes were remodeled long after they were built. Kitchens opened up, walls of impact glass went in, lanais were enclosed and pools added outside the family room. Each change shifts the cooling load, yet the AC is usually replaced with the same size as before. Swift runs Manual J load calculations in-house so the new system fits the house as it is now, not as the builder drew it. That matters in Boca Raton for a few reasons. Big glass areas facing west or toward the water add heat that a square-foot rule never accounts for. Seasonal homes need equipment that controls humidity while the house is empty, and an oversized system is bad at that. Larger homes may be better served by two systems or zoning, and the room-by-room numbers tell us which. Once the loads are known, a Manual D duct design sizes every run so the air reaches each room and every bedroom stays within 3°F of the thermostat.
About this service
Manual J Load Calculation & Manual D Duct Design in Boca Raton
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 Boca Raton.
Watch what to expect when our team shows up. Honest installs, careful technicians, the same standard on every Boca Raton job.
Neighborhoods we serve
Local areas in Boca Raton.
Manual J and Manual D design for homes across Boca Raton, including East Boca, West Boca, Boca Del Mar, Town Center and Mizner Park, oceanfront homes along A1A and gated communities such as Woodfield Country Club, from Glades Road and Yamato Road to Palmetto Park Road and Powerline Road.
Local details
Manual J Load Calculation & Manual D Duct Design details for Boca Raton.
Our Manual J starts with a walk-through of your Boca Raton home. We record each room's dimensions, window sizes and directions, glass type, ceiling heights, insulation levels, and where the air handler and ducts are located. Shading from neighboring homes and mature trees counts too, as do sliding doors to the pool deck. From those inputs, the calculation gives the heat gain for every room, both the sensible heat that raises the temperature and the latent load from humidity. Manual S uses those numbers to choose equipment that handles both, which is why a properly selected system feels drier, not just colder. Manual D then lays out duct sizes for each room, accounting for fittings, run lengths and the blower's available pressure, while Manual T guides register and grille choices. For two-story and multi-wing Boca Raton homes, the design may split the house into zones or add a second system. You see the plan before any work begins.
Coverage map
Serving Boca Raton.
Same-day service across every neighborhood and ZIP code below. No travel surcharges.
Neighborhoods we serve
- Mizner Park
- Town Center
- West Boca
- East Boca
- Boca Del Mar
ZIP codes we cover
10 ZIP codes across Boca Raton.
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
It can be. A system that turns on, cools for a few minutes and shuts off is often oversized, and it leaves the air feeling damp because it never runs long enough to pull out moisture. A Manual J load calculation for your Boca Raton home shows the size you actually need, so your next system runs longer, steadier cycles.
Yes. Large windows and sliding doors, especially facing west or toward the water, add a lot of heat. Manual J accounts for each window's size, direction and glass type, so a remodeled Boca Raton home gets equipment and airflow matched to the rooms that need it most, instead of a size based on square footage alone.
Yes. Our own team runs the load calculation and the duct design for the replacements and duct projects we install in Boca Raton. Keeping it in-house means the people who measured your home are the same team building to the design, and we verify the finished system with airflow and temperature readings.
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