Seasonal Maintenance Checklist for Commercial Mechanical Systems

Your commercial HVAC system is responsible for keeping your building comfortable all year round. For this reason, HVAC seasonal maintenance is a necessary part of running a business. Two primary types of maintenance should take place throughout the year: DIY tasks as needed and professional inspections in the spring (for cooling equipment) and fall (for heating equipment). Not sure what to include on your commercial mechanical systems maintenance checklist? Follow this practical guide for business owners.

Your commercial HVAC system is responsible for keeping your building comfortable all year round. For this reason, HVAC seasonal maintenance is a necessary part of running a business. Two primary types of maintenance should take place throughout the year: DIY tasks as needed and professional inspections in the spring (for cooling equipment) and fall (for heating equipment). Not sure what to include on your commercial mechanical systems maintenance checklist? Follow this practical guide for business owners.

DIY Maintenance Tasks for Commercial HVAC Systems

Basic upkeep goes a long way in keeping your system running efficiently. These tasks don’t require special tools or skills, making them easy to handle yourself.

• Inspect and replace air filters: Commercial HVAC filters become clogged over time, restricting airflow and forcing the system to work harder. Check your building’s filters monthly and replace them if they appear dirty. Most commercial systems require filter changes every one to three months, though some environments may need more frequent replacements.
• Keep surrounding areas clear: Your HVAC units need room to breathe. Outdoor components can be blocked by leaves, dirt, or encroaching vegetation, while indoor units might get surrounded by storage boxes or furniture. These obstructions restrict airflow and may cause the system to overheat. Regularly inspect the area around your indoor and outdoor units and ensure at least two feet of clearance on all sides.
• Check thermostat settings: Your thermostat directly impacts how hard your HVAC system works. At least once a season, review the thermostat settings to ensure they’re appropriate for the current weather and your indoor comfort needs. For added efficiency, consider upgrading to a smart thermostat, which can automatically adjust settings based on the time of day or building occupancy.
• Monitor energy bills for changes: A sudden spike in your utility bill often signals trouble with your HVAC system, such as a clogged filter, low refrigerant levels, or worn-out components. Compare energy usage from month to month to help you identify patterns or anomalies. Acting quickly can save you from costly repairs or replacements down the line.
• Listen for unusual noises: Noisy HVAC systems are a warning sign. Rattling could mean loose parts, buzzing might indicate electrical issues, and squealing is often a symptom of worn belts or bearings. Pay attention to changes in the sounds your system makes during operation. If something doesn’t sound right, schedule a professional inspection.
• Ensure vents are unobstructed: Blocked vents force your HVAC system to work harder. Walk around your building and make sure no furniture, boxes, or other items are obstructing airflow.

Why Professional Mechanical System Maintenance Is a Must

Even with diligent DIY care, commercial HVAC systems require professional maintenance at least once a year. Licensed technicians have the tools and expertise to conduct a more thorough inspection. Skipping this step may lead to reduced efficiency, unexpected breakdowns, and emergency repairs. Routine professional maintenance ensures your system operates at peak performance, extending its lifespan and saving you money in the long run.

What Technicians Do During a Professional Visit

Comprehensive HVAC tune-ups go far beyond the tasks you can complete yourself. Here’s what a professional’s commercial HVAC maintenance checklist entails:

• Thorough system inspection: Technicians evaluate all HVAC system components to ensure everything is functioning as it should.
• Refrigerant check and adjustment: Low refrigerant levels can compromise cooling efficiency and damage the compressor. Technicians check for refrigerant leaks that could impair efficiency.
• Electrical component testing: Loose connections or failing electrical components may lead to system malfunctions. Professionals tighten connections and test circuits for reliability.
• Lubrication and calibration: Moving parts need lubrication to reduce wear and tear. Technicians may also calibrate controls to promote accurate temperature readings and boost performance.
• Condensate drain cleaning: Air conditioners and some high-efficiency heating systems produce condensate as they operate. Blocked drainage systems may lead to water damage and mold growth. Professionals clean clogged drain lines and implement measures to prevent future clogs.

Why Choose Hayes Mechanical for Your Commercial HVAC Needs?

Hayes Mechanical has proudly served businesses like yours since 1918, we understand the value of trust and reliability. Our team delivers full-service commercial and industrial HVAC solutions on time and on budget, with honesty and integrity at the core of everything we do. We’re ready to help you prepare your mechanical systems for seasonal changes, so schedule commercial HVAC maintenance with us today. We have seven locations across the US, including our headquarters in Chicago, IL.