An Overview of Commercial HVAC Rooftop Units
An Overview Of Commercial HVAC Rooftop Units-01

Typically used for buildings up to eight floors in height, rooftop HVAC units offer numerous incentives as a heating and cooling solution.
Ideal for their ease of customization and maintenance, they are also very efficient systems that can be easily adapted to the unique needs of a specific structure.

Understanding the Core Components of Your Commercial Rooftop Unit

Rooftop HVAC units operate on simple scientific principles but are quite complex. Here are the core components of your commercial rooftop HVAC unit:

  • Evaporator core: When cooling your building, this is part of the system that absorbs heat from indoors by running air through refrigerant coils.
  • Condenser: Functioning as the opposite of an evaporator core, the condenser captures and releases hot air into the outdoors. The refrigerant that has absorbed heat is cycled through coils where its heat is released and cycled out of the unit via fans.
  • Compressor: The compressor acts as the intermediary in the HVAC cycle. Taking refrigerant fluid from the evaporator core where heat is absorbed, the compressor then cycles it through the condenser, where heat is released.
  • Fans: Throughout the HVAC process, fans play an integral role in how hot, and cold air is directed through a system through the evaporator and condenser. 
  • Air intake: Whether the rooftop unit is cooling or heating, air will need to be brought in from the outdoors to cycle through the system. The air intake uses a series of fans and vents to direct air toward the heating and cooling sections of the unit.
  • Heat source: In a rooftop HVAC unit, the heat source may vary but typically is a fuel-burning system that uses a constantly burning flame to generate heat, which is then transferred to airflow directed throughout the building.
  • Exhaust: Every Commercial HVAC unit produces potentially harmful gases that must be safely transferred away from the building via exhaust systems.


The advantages of a proactive maintenance program (PMP) for your commercial HVAC rooftop unit

  • Extended lifespan: A system that’s running efficiently is a system that will last. A commercial HVAC unit will burn out before the end of its anticipated lifespan because it has not been properly maintained. By proactively keeping it running smoothly, you not only ensure your unit lasts its full lifetime but even beyond it.
  • Improved efficiency: When your rooftop unit is proactively maintained, it prevents breakages or anticipated wear, which can cause the system to consume more energy to do the same job. This can save thousands of dollars per season in electricity bills.
  • Reduced maintenance: By booking regular maintenance appointments with our team of expert technicians, you are helping to reduce the overall number of visits you will need throughout your unit’s lifetime. This is because anticipating problems before they occur keeps the system healthy and reduces the likelihood of future breakages.


Keep Your Rooftop Unit at the Top of its Game with TRI-AIR’s Professional Maintenance 

For over 40 years, TRI-AIR’s team of highly experienced technicians has been providing the Greater Toronto Area with the best in HVAC installations and ongoing maintenance. Our clients trust us to give the best advice on which rooftop units are best suited to their buildings while also providing long-term support via our Proactive Maintenance Program. We offer customers guaranteed 24/7 emergency HVAC repairs 365 days a year, giving you the peace of mind of knowing your building will stay at a comfortable temperature year-round.


For a consultation about the best rooftop HVAC solution for your building, call 905-470-2424. You can also contact us online to schedule an inspection or testing or discuss other heating and ventilation-related requirements. 

1. What are the main parts of a commercial rooftop HVAC unit?
Commercial rooftop HVAC unit has important parts needed for it to work. These include the evaporator core, condenser, compressor, fans, air intake, heat source, and exhaust. Each part is crucial for heating and cooling the building efficiently, It makes sure people inside feel comfortable.

2. How does looking after a commercial rooftop HVAC unit help?
– Taking care of a commercial rooftop HVAC unit before problems happen is helpful in many ways. It makes the system last longer by keeping it working well and stopping it from breaking down often, and due to this fewer repairs are needed. This also saves on energy bills because the system uses less electricity. When HVAC experts regularly check the unit, they can find and fix issues early without interrupting the people in the building.

3. Why are rooftop HVAC units good for businesses?
– Rooftop HVAC units are great for businesses for a few reasons. They’re efficient at heating and cooling, which is useful for buildings that aren’t too tall, usually up to eight floors. They’re also easy to adjust and maintain, which means they can fit different building needs well. Plus, they save on energy costs while keeping the indoor environment comfortable for everyone.

4. Why should I consider TRI-AIR’s maintenance program for my rooftop HVAC unit?
– TRI-AIR’s maintenance program is highly recommended because it offers a wide range of services and knows what it’s doing. With over 40 years of experience in the Greater Toronto Area, TRI-AIR’s technicians are skilled at installing, maintaining, and fixing HVAC units. Their proactive maintenance program ensures your rooftop unit stays in good shape, lasts longer, and works efficiently. This gives building owners peace of mind.

5. How do I set up a meeting to discuss rooftop HVAC units for my business?
– If you want to talk about getting or maintaining a rooftop HVAC unit for your business, you can reach out to TRI-AIR. You can call them at 905-470-2424 to schedule a meeting. You can also contact them online to plan an inspection, talk about testing, or discuss any heating and ventilation needs you have. Their team will give you expert advice tailored to what your building requires.

Call Us (905) 470-2424