Packaged heating, ventilation, and air conditioning units deliver flexibility in a space-saving design for commercial buildings.

They bring heating and cooling functions together in a single cabinet that can sit on the ground outdoors or on a flat roof.

If space is at a premium in your commercial building, a packaged unit might be your best solution for heating and cooling. If the property outside your building cannot accommodate HVAC equipment, or you prefer to keep your heating and cooling system from view, consider a rooftop (RTU) packaged unit.

Carrier, a global leader in intelligent climate and energy solutions, offers a variety of product options, from units that supply either heat or cooling to packaged heat pumps and combination air conditioning and gas or electric heating. If you are considering an RTU, ask a Carrier dealer which option works best for your commercial building.

You can find a local dealer in Arizona, Idaho, Nevada, New Mexico, and parts of Texas through our Commercial Cooling Center directory. To get started click-here.

RTU Advantages

In addition to a smaller footprint, an RTU offers these advantages:

  • It uses less energy than traditional split systems.
  • It is quiet.
  • Its rooftop location provides some protection against vandalism, although it also exposes equipment to the elements.


You can trust a Carrier dealer to install an RTU that suits the needs of your commercial property. The Carrier professionals in our Commercial Cooling Center network know how to size HVAC units correctly and select the optimal rooftop location.

An RTU takes less time to install than a split system because its heating and cooling components are in one housing, set in one location.

Carrier’s Weather series of RTUs features an outdoor fan system with a high-density composite fan blade balanced for quiet operation, permanently lubricated motor bearings, a beltless direct-drive vane axial indoor fan, and air filter access doors that open without tools.

Although Carrier has enhanced its rooftop Weather Series with innovative changes, it has maintained the same footprint as earlier RTU designs. This makes for hassle-free replacement of existing units and keeps costs down.

Ask a Carrier expert about factory-installed options such as dehumidification capability, a condensate overflow switch, carbon dioxide (CO2) sensors, and hinged access panels.


An RTU is more accessible for repairs and maintenance because its components are together in one cabinet. It makes diagnosing system problems easier for technicians.

Refrigerant leaks, dirty coils, worn belts, and short cycling are just a few problems that might affect your RTU. If you hear unusual noises, smell unpleasant odors from air vents, or notice the air filter is dirty and has restricted airflow, seek a Carrier professional through the Commercial Cooling Center directory for help.


Like any other commercial HVAC equipment, RTUs require maintenance. Preventative maintenance minimizes wear and tear to a minimum and prolongs the unit’s service life.
Tune-ups ensure your HVAC system runs at peak efficiency, which helps keep costs down.

A Carrier technician can tailor a preventative maintenance plan to your RTU based on your budget, the age and condition of your equipment, and the surrounding environment, including climate.

Find a Carrier Dealer Today

Our Commercial Cooling Center directory can help you choose a Carrier dealer in Arizona, Idaho, Nevada, New Mexico, or parts of Texas to learn more about RTUs. To find a dealer, click-here.