Commercial Rooftop Units: Expert Installation, Repair, and Maintenance
Commercial rooftop units, commonly known as RTUs, serve as the backbone of climate control for businesses across Jackson, TN and surrounding areas. These self-contained systems sit atop commercial buildings and provide heating, cooling, and ventilation through a single packaged unit. At McCoy's Heating & Air, we have been installing, servicing, and maintaining commercial rooftop units since 1981, giving us over four decades of hands-on experience with every major manufacturer and system configuration available on the market today.
Rooftop units are the most widely used HVAC solution in the commercial sector, accounting for roughly 60 percent of all commercial cooling capacity in the United States. Their popularity stems from the fact that they save valuable interior floor space, simplify ductwork requirements, and provide centralized climate control that is easy to access for maintenance. Whether you operate a retail store, warehouse, office building, restaurant, or industrial facility, we service all makes and models and offer free estimates to help you determine the best solution for your specific needs.
How Commercial Rooftop Units Work
A commercial rooftop unit integrates all the components of a traditional split system into one weatherproof cabinet mounted on the roof. Inside the unit, you will find a compressor, condenser coil, evaporator coil, blower fans, air filters, and often a gas heating section. Conditioned air is distributed through a network of ductwork that runs from the unit down through the roof and into the building’s interior spaces. Return air is pulled back up to the unit, filtered, and reconditioned in a continuous cycle.
Modern RTUs range from small 2-ton units suitable for a single commercial suite to massive 150-ton systems capable of conditioning entire big-box retail stores or manufacturing facilities. Many newer units incorporate variable speed drives, economizer controls, and multi-stage compressors that dramatically improve energy efficiency. Our factory-trained, NATE Certified, and EPA Certified technicians understand the technical intricacies of these systems and can help you select the right capacity, efficiency rating, and feature set for your building.
Installation Process and Methodology
Proper installation of a commercial rooftop unit requires careful planning and precise execution. We begin every project with a thorough load calculation using Manual N and Manual J methodologies to ensure the unit is correctly sized for your building’s square footage, insulation levels, occupancy patterns, and heat-generating equipment. An oversized unit cycles on and off too frequently, wasting energy and reducing equipment lifespan, while an undersized unit runs constantly without achieving comfortable temperatures.
Once sizing is determined, our team coordinates crane services, roof curb fabrication or adaptation, structural assessments, and ductwork connections. We handle electrical and gas line hookups, thermostat and building automation system integration, and final commissioning that includes refrigerant charge verification, airflow balancing, and safety control testing. As a locally owned and operated company serving Jackson, Humboldt, Henderson, Alamo, Bells, Cedar Grove, and Medina, TN, we take pride in delivering high-quality products installed and serviced by professionals who stand behind their work.
Maintenance and Repair Services
Routine maintenance is critical for maximizing the lifespan and efficiency of your rooftop unit. A neglected RTU can lose 5 to 15 percent of its cooling efficiency each year due to dirty coils, clogged filters, refrigerant leaks, and worn belt drives. Our comprehensive maintenance program addresses every component to keep your system running at peak performance.
Our standard commercial RTU maintenance visit includes the following key tasks:
- Coil cleaning and inspection to maintain proper heat transfer and prevent corrosion
- Filter replacement and airflow verification to ensure healthy indoor air quality and system efficiency
- Electrical connection tightening and component testing to prevent unexpected failures and safety hazards
- Refrigerant level checks and leak detection to maintain cooling capacity and comply with EPA regulations
- Belt and bearing inspection to reduce noise and prevent costly blower motor damage
When repairs are needed, our experienced technicians diagnose problems quickly using advanced diagnostic tools and their extensive field experience. Customer satisfaction is our number one concern, as evidenced by nearly 2000 five-star Google reviews and our A+ Rating with the BBB. Contact us today.