Commercial Rooftop Air Conditioners & Packaged AC Units

A Commercial Rooftop Packaged Air Conditioner puts the compressor, coils, fans and controls into one cabinet that sits on your roof. That keeps mechanical gear off the floor and away from customers. For shops, offices and clinics, this style of commercial ac unit is usually the most practical way to cool a big footprint.

Most buyers start here because they need a dependable commercial ac unit that runs long hours without fuss. Our Commercial Rooftop Air Conditioners run on R-32 refrigerant and three-phase power in 3, 4 and 5 ton sizes. Pick the right tonnage and half the job is done.

Before comparing models, know what actually separates one hvac rooftop unit from another. Capacity, voltage, refrigerant and efficiency matter far more than the logo on the panel. Check these first:

• Cooling capacity in tons, matched to your square footage

• Voltage and phase, such as 460V or 575V three-phase

• Refrigerant type, with R-32 now standard on newer equipment

• SEER2 and EER2 efficiency ratings

What Is a Commercial Rooftop Packaged Air Conditioner?

A Commercial Rooftop Packaged Air Conditioner is a full cooling system packed inside a weatherproof steel box. Warm air travels up through ductwork, gets cooled inside the cabinet, then drops back down through supply ducts. Everything mechanical lives outside, which is exactly why owners like it.

The term Commercial Packaged means all major components ship assembled in one housing. With Commercial Rooftop Air Conditioners built this way, you deal with one cabinet, one electrical connection and one spot on the roof.

• One cabinet holds every major component

• Ducts connect through a roof curb or side panel

• No indoor mechanical room needed

How the Cooling Cycle Works

Inside every hvac rooftop unit, the compressor pressurizes refrigerant, which dumps heat at the condenser coil while outdoor fans push it away. The refrigerant then picks up heat from building air at the evaporator coil and the cycle repeats. Our 4 ton model follows this cycle on 460V three-phase power, a good fit for mid-sized spaces.

Why Businesses Choose Commercial Rooftop HVAC Units

Floor space costs money, and an indoor commercial ac unit eats it. Putting commercial rooftop hvac units up top keeps every square foot of sales floor or office usable.

There is a security angle people forget with Commercial Rooftop Air Conditioners. A Commercial Rooftop Packaged Air Conditioner sits out of reach, so tampering and copper theft stop being your problem. Honestly, that alone sells a lot of property managers on commercial rooftop hvac units.

• Saves interior floor space

• Keeps compressor noise away from people inside

• Works well with zoned ductwork across open floors

Commercial Rooftop AC Unit vs Split System

A split system suits a small office suite, but it gets messy as buildings grow, which is where Commercial Rooftop Air Conditioners pull ahead. Each commercial rooftop ac unit handles its own zone, so adding capacity later is simpler. It also skips long refrigerant line runs.

Choosing the Right Size Rooftop Air Conditioning Unit

Sizing is where most buying mistakes happen. An oversized rooftop air conditioning unit short-cycles and leaves the air clammy. An undersized Commercial Rooftop Packaged Air Conditioner runs nonstop on hot afternoons and still falls behind.

A rough starting point for sizing Commercial Rooftop Air Conditioners is one ton per 400 to 500 square feet. Glass, lighting and occupancy push the load on a commercial rooftop ac unit up fast. Get a load calculation before you settle on any commercial ac unit.

• 3 ton: roughly 1,200 to 1,500 sq ft

• 4 ton: roughly 1,600 to 2,000 sq ft

• 5 ton: roughly 2,000 to 2,500 sq ft

• Kitchens and glass storefronts need extra capacity

Efficiency and Refrigerant: What Has Changed

Newer rooftop commercial air conditioning units ship with R-32 because of the federal phase-down on R-410A. R-32 moves heat well, so systems often need a smaller refrigerant charge. That helps the operating cost of any commercial ac unit and keeps you in line with current codes.

Ratings for Commercial Rooftop Air Conditioners moved to SEER2 and EER2 testing in 2023, which better reflects real-world conditions. For a commercial ac unit running ten hours a day, a small efficiency bump adds up over a season.

• R-32 has a much lower global warming potential than R-410A

• SEER2 and EER2 use tougher test conditions

• Higher efficiency trims energy bills on long run hours

Commercial Packaged Units Sized for Real Buildings

Multi-tenant buildings do best when every suite gets its own hvac rooftop unit and thermostat. Our rooftop commercial air conditioning units cover the sizes buyers ask for most, all on R-32 with three-phase power.

• Factory-assembled in a single weatherproof cabinet

• R-32 refrigerant across the full lineup

• 460V and 575V three-phase options

If you want a Commercial Rooftop Packaged Air Conditioner that fits your building and power supply, this range is a solid place to start. The 5 ton model handles larger open floors with ease.

Check Our Products

Browse our Commercial Rooftop Air Conditioners and pick the capacity that matches your space:

• 3 Ton Light Commercial Packaged Air Conditioner

• 4 Ton Light Commercial Packaged Air Conditioner

• 5 Ton Light Commercial Packaged Air Conditioner

Frequently Asked Questions

Q1: What is the difference between a packaged unit and a rooftop unit?

A rooftop unit is a packaged unit mounted on the roof. Packaged describes the design, rooftop describes the location.

Q2: What size commercial ac unit do I need for 2,000 square feet?

Most spaces that size fall in the 4 to 5 ton range. A load calculation confirms the exact tonnage.

Q3: Why do newer rooftop air conditioning unit models use R-32?

R-32 has a far lower global warming potential than R-410A. It also meets current phase-down rules.

Q4: Can a Commercial Rooftop Packaged Air Conditioner run on 575V power?

Yes, some models are built for 575V three-phase supply. Our 3 ton model is one example.

Q5: How long do rooftop commercial air conditioning units last?

Most last 15 to 20 years with regular care. Climate and run hours affect lifespan.