The weather is warming up and you are beginning to use much more your rooftop HVAC system. To ensure that the system is working reliably in this hot weather and is performing optimally depends on maintaining them properly. In addition, well-maintained equipment will last longer and delay the spending of lots of capital to replace them. Thus, here are some tips to help you with the maintenance of your rooftop HVAC system, including steps you can take in-season. Be careful working with rooftop HVAC units, in terms of safety. If you are unsure of certain steps, make sure to bring in an experienced, professional HVAC firm to perform the tasks.

1. Regular Inspections.  Schedule routine inspections of your rooftop HVAC system, at least twice a year and, ideally, at the beginning of the cooling and heating seasons. Turn off the equipment, remove covers, and go “inside” the equipment to identify any potential physical damage or signs of wear and tear.
2. Keep the surroundings clean. Well, at least keep the area around your rooftop units clear of debris, vegetation, and any other obstructions. This allows for proper airflow and prevents the accumulation of dirt on filters and other parts.
3. Clean the coils. The condenser and evaporator coils are essential and dirt, dust, and debris can affect their ability to work. Use a soft brush or low-pressure water to clean them gently.
4. Replace filters. Dirty filters restrict airflow, reducing system efficiency. Replace or clean the filters regularly. Follow the manufacturer’s recommendations. But pay special attention to unique features of your area. For example, one client cleaned rooftop filters once every 3 months, per recommendation. But the site was near several gravel and sand pits, necessitating more frequent changes as the neighbor’s material became airborne more than in a “typical” location.
5. Check fan blades. Inspect the fan blades for damage or imbalance. Ensure that they are clean and free from debris. If you notice any issues, contact a professional to address them.
6. Inspect belts. First, listen to your system for any unusual noises or rocking of unstable belts. Check the condition and tension of the belts that drive the fan. Replace worn-out, cracked, or out-of-alignment belts to prevent system failures.
7. Lubricate moving parts. Lubricate the bearings and motors per manufacturer’s recommendations, reducing friction and extending the lifespan of the components. And this improves energy efficiency, too.
8. Check electrical connections.  Inspect the electrical connections, wires, and terminals. Ensure they are secure and free from corrosion. Loose or damaged connections can lead to system malfunctions and should be repaired promptly.
9. Monitor refrigerant levels.  Low refrigerant levels can indicate leaks or other issues. Regularly check and monitor the refrigerant levels to ensure optimal performance. If you suspect a leak, contact a professional HVAC firm for repairs.
10. Professional maintenance.  Consider hiring an experienced, professional HVAC firm for comprehensive maintenance at least once a year. They can perform tasks such as system calibration, efficiency checks, and detailed inspections. Yes, this costs money, but will save you much more in terms of better efficiency, reliability and longevity.

CCES has the experts to help you assess your HVAC equipment and determine any potential problems in operations. Contact us today at 914-584-6720 or at karell@CCESworld.com.