
Deerfield Beach · Manual J & D Design
Manual J Load Calculation & Manual D Duct Design in Deerfield 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 Deerfield 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 Deerfield 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 Deerfield Beach
Manual J Load Calculation & Manual D Duct Design in Deerfield Beach, FL.
Deerfield Beach homes range from compact condos to large gated-community houses, and their cooling needs vary even more than their sizes. A beachside condo with floor-to-ceiling glass facing east can carry a heavy morning load, while an interior Century Village unit surrounded by neighbors may need much less capacity than its square footage suggests. Single-family homes in Waterways and Crystal Lake often have larger windows, high ceilings and lanais that change the load room by room. Swift runs Manual J load calculations in-house for the systems and duct projects we install in Deerfield Beach, sizing equipment to the actual home rather than a rule of thumb. Getting it right matters for humidity, too. Coastal air is damp, and an oversized system cools quickly and leaves moisture behind. The room-by-room numbers also drive a Manual D duct design that gives each room its share of air, keeping every bedroom within 3°F of the thermostat.

About this service
Manual J Load Calculation & Manual D Duct Design in Deerfield 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 Deerfield Beach.
Watch what to expect when our team shows up. Honest installs, careful technicians, the same standard on every Deerfield Beach job.
Neighborhoods we serve
Local areas in Deerfield Beach.
Manual J and Manual D design for Deerfield Beach homes and condos in Century Village, The Cove, Waterways, Crystal Lake and the beach area, along Hillsboro Boulevard, Federal Highway, Powerline Road, Military Trail and A1A, from oceanfront towers to the gated single-family neighborhoods west of the Intracoastal.
Local details
Manual J Load Calculation & Manual D Duct Design details for Deerfield Beach.
For a Deerfield Beach Manual J, we measure every room and record window and door sizes, directions and glass types. In condos, we note which walls are shared with neighbors or hallways, since those reduce the load, and which face the sun or the ocean. In single-family homes, we check ceiling heights, attic insulation, duct location and rooms that open to lanais. The calculation gives each room a heat load and a moisture load. Manual S then guides the equipment choice, focusing on systems that remove humidity well at lower speeds and fit the space available in condo closets. Manual D sizes every supply and return, adds return paths for bedrooms and checks the total resistance against what the blower can deliver. Manual T guides register and grille choices so air spreads across rooms with large glass. We go over the plan with you, our crew installs to it and we confirm the airflow in your finished Deerfield Beach system.
Coverage map
Serving Deerfield Beach.
Same-day service across every neighborhood and ZIP code below. No travel surcharges.
Neighborhoods we serve
- The Cove
- Century Village
- Waterways
- Crystal Lake
ZIP codes we cover
3 ZIP codes across Deerfield 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
Shared walls, floors and ceilings with neighboring units cut heat gain, so an interior condo can need much less capacity than a house of the same size. A Manual J for your Deerfield Beach unit accounts for that. A right-sized system runs longer cycles and removes more humidity.
Large east-facing windows let in strong morning sun, which raises the load in those rooms. Manual J calculates heat gain for each window based on its size, direction and glass, so beachside Deerfield Beach rooms get the capacity and airflow they need. Shades, overhangs and tinted or low-e glass are entered too, since they can cut that morning load noticeably.
Yes. We run the Manual J on the home as it will be after the renovation, design the ducts with Manual D and recommend equipment with Manual S. Bringing us in early helps your Deerfield Beach project avoid the classic problem of one new room that never cools.
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


