Proper heating and cooling are essential in any building or business. They impact occupant comfort and productivity, and in some cases, they can even influence the quality of stored products. But unfortunately, for most customers, a Rooftop HVAC system are often overlooked as a way to save energy. Here are some important tips on rooftop units to better understand its operation.
What is a rooftop unit, and how does it work?
Rooftop units (RTUs) are a compact HVAC system mainly installed on the roof of a building. These units are use to provide heating, cooling, and ventilation for the space they serve. In addition, often referred to as packaged systems, all components, such as the evaporator coil, compressor, and fans, are housed in a single unit.
RTUs are a popular HVAC solution for low-rise buildings, such as small—to mid-sized offices, shopping centres, warehouses, and restaurants. More significant buildings may have multiple units to manage different zones. These units connect to the building’s ductwork to distribute the conditioned air.
Purpose of a Rooftop Unit
The primary function of a rooftop unit is to deliver conditioned air to specific areas of a building. The units are linked to the ducting system of the building, which directs the airflow to designated spaces.
The Advantages of HVAC Rooftop Systems
- Out of sight
Rooftop units (RTUs) are positioned away from the public, including customers and employees. Unlike ground-level units, RTUs are more protected from safety hazards and vandalism and don’t take up valuable space on your property.
- Reduced noise
Since RTUs are located on the roof, their operational noise is usually less noticeable, keeping workspaces and customer areas quieter.
- Less dirt and debris
While regular maintenance is still required, rooftop placement means the system is exposed to less dirt and debris than ground-level units, resulting in fewer clogs and reduced wear and tear.
- Easy access for maintenance
When it’s time for repairs or cleaning, rooftop units allow maintenance crews to work without disrupting daily operations. They have plenty of space to set up equipment without interfering with employees or customers, reducing the risk of accidents.
- Cost savings
Many rooftop systems are more energy-efficient than other HVAC setups, leading to long-term savings on energy costs.
The Drawbacks of HVAC Rooftop Systems
- Heavyweight
Despite their compact size, rooftop units (RTUs) are still quite heavy. It’s essential to ensure your building’s roof has the structural strength to support them. If the roof isn’t strong enough, you may experience water leaks, leading to more severe issues.
- Placement is crucial
Just like weight, the placement of the RTU on the roof is vital. Poor installation, such as placing the unit in a low spot, can result in water pooling, which may damage both the unit and the roof.
- Out of sight, out of mind
Since RTUs are out of view, business owners may need to pay more attention to regular maintenance. It’s essential to schedule quarterly servicing or arrange for routine maintenance to prevent the unit from wearing out faster than expected.
- Exposure to weather and wildlife
While RTUs are protected from ground-level dirt, they are still exposed to the elements. Lightning strikes pose a risk, and birds can create additional problems, depending on your building’s height. Consult your HVAC contractor for solutions to these issues.
Two Strategies to Maximize Rooftop HVAC Unit Efficiency
Knowledge HVAC & Refrigeration recommends two key strategies to boost the efficiency of rooftop HVAC units:
- Regular Inspections
Have a qualified commercial HVAC contractor inspect your rooftop unit four times a year. This will ensure peak performance with maximum efficiency.
- Retrofit with Advanced Controls
Upgrade your rooftop unit by adding advanced control systems.
Preventative Maintenance
Regular servicing by an HVAC contractor —ideally four times per year—helps prevent expensive, unexpected repairs and keeps the unit in optimal condition.
Advanced Controls
Most rooftop HVAC systems operate at a constant volume. When turned on, they run at total capacity, regardless of how many people are in the building or the time of day. They’re either fully on or off.
Advanced controls provide variable speed options, so the unit runs only at the required level. Sensors can also monitor indoor temperature and carbon dioxide levels to adjust airflow based on occupancy and air quality.
Why You Should Give It More Thought
Rooftop units (RTUs) have many advantages, but some drawbacks exist. Their exposed location makes them vulnerable to the elements. Heavy rain, intense sun, strong winds, and airborne debris can have an impact on your RTU. There have even been instances where birds or rodents get inside the unit, causing damage and affecting its performance.
While these are valid concerns, they can be managed effectively. Regular HVAC inspections by one of our experts can help monitor the condition of your RTU. Early detection of any issues ensures they can be addressed before leading to more significant problems.
What to Expect from Rooftop Air Conditioning & Heating Unit
Property managers who invest in a rooftop unit (RTU) management program will benefit. Not only will their system be maintained properly but it will also be reliable with long-lasting performance.
NOTE: The best HVAC systems are only as effective as the team that installs and maintained them. Therefore, choosing a trusted HVAC company like Knowledge HVAC & Refrigeration is essential to get the most value from your investment. We specialize in Rooftop units repairs and provide expert commercial HVAC services. Here’s why we are a leading choice for HVAC needs in and around the Lower Mainland and Fraser Valley Areas.
- Qualified for local HVAC work
Knowledge HVAC & Refrigeration is fully licensed, bonded, and insured, ensuring complete protection for our clients. Our regional presence allows us to respond quickly in an HVAC emergency. With just one call, our experienced technicians will be on their way to assist you.
- Dedicated to your project
We combine professionalism with a personal touch as a family-owned and operated company. Whether residential AC maintenance or commercial HVAC replacement, we treat every project carefully. Our focus on customer satisfaction has helped us build lasting relationships within our community.
- Proven skills and experience
Knowledge HVAC & Refrigeration Ltd has provided high-quality HVAC solutions to homeowners and commercial property managers in British Columbia. Our licensed and professional HVAC experts are committed to doing the job right the first time, ensuring no shortcuts and no callbacks. With over a decade of experience, we’re proud to maintain an A+ rating with the Better Business Bureau®.
- Certified expertise
We ensure you have access to the latest HVAC technology. Knowledge HVAC & Refrigeration offers top-tier systems tailored to your building’s comfort needs.
Knowledge HVAC & Refrigeration Ltd stands out in the commercial HVACR industry with our unmatched experience, engineering expertise, and strong work ethic. Our dedication to excellence and drive for success set us apart from other companies. We have worked with some of the most prominent local businesses and prestigious institutions, including hospitals and healthcare facilities.
By choosing a commercial HVAC rooftop unit installation done by our crew. You can save time, money and avoid any frustration the process may have. We assist with everything from selecting a suitable unit to its installation and ongoing maintenance. Contact our skilled HVACR professionals today if you need a new rooftop unit or service for your current system.
