Commercial HVAC systems are very expensive to design, install, repair, service, and maintain in commercial and industrial buildings. For many companies, the cost of operating these systems takes a big bite out of the annual operating budget. Regardless of costs, indoor air quality is important for every commercial building. When your equipment fails to operate properly, the expense of lost productivity, inability to meet customer deadlines, decreased cash flow, and business reputation can impact future business.
Understanding HVAC Maintenance for Your Commercial Building
HVAC systems have many components that act collectively to keep indoor air optimal for your business. Because these systems have many components, paying attention to any unusual sounds, temperature changes, high or low humidity levels, etc., to avoid equipment failure is wise. One of the most noticeable signs of HVAC trouble is unusual noises coming from the system. Loud or strange sounds such as banging, clanking, squealing, or grinding are abnormal. These noises could indicate loose components, motor problems, or worn-out belts.
Inconsistent Temperatures and Poor Air Flow
Inconsistent temperatures in key workspaces can indicate other problems, including blocked vents, malfunctioning thermostats, or problems with the ductwork. Inconsistent temperatures cause employee discomfort and impact air quality levels required on the production floor, lab testing locations, and storage/distribution areas.
Weak or reduced airflow might indicate a problem with the blower or ductwork. Blocked ducts, clogged filters, or a failing blower motor can contribute to inadequate airflow. Poor airflow compromises comfort and can also affect air quality and increase the risk of respiratory issues among building occupants. Regular maintenance, including filter changes and duct inspections, can help prevent airflow problems.
Unusual Noises and Odors
Foul or unusual smells from your HVAC system are clear indicators of trouble. Musty odors often suggest mold or mildew growth within the system or ductwork. Burning or electrical smells can indicate overheating components or wiring issues. Any unusual odor should be addressed immediately to prevent health hazards and further damage to the system.
Unexpected Increase in Energy Bills
A sudden spike in energy bills is often a sign that your HVAC system is not operating efficiently. This inefficiency can be due to a variety of factors, including dirty filters, worn-out parts, or failing components. An inefficient system works harder to maintain the desired temperature, consuming more energy in the process. Regular care and timely repairs can help keep your energy costs under control.
Frequent Cycling or Running Longer Than Usual
Your system should cycle on and off at regular intervals to maintain the required temperatures for specific locations. If your system is cycling more frequently than usual, it could indicate an issue such as a malfunctioning thermostat, refrigerant leak, or an oversized system. Frequent cycling increases wear and tear on the system and reduces its lifespan and efficiency.
Issues with Humidity Levels
A properly functioning HVAC system should regulate humidity levels within your building. If you experience excessive humidity, it could mean your system is not removing moisture effectively. High humidity levels can lead to discomfort, mold growth, and damage to furnishings and equipment. Addressing this issue promptly can prevent more serious future problems.
Age and Historical Performance of the HVAC System
The life expectancy of commercial units is typically 15 to 20 years; however, it depends on several factors. Proper care of your commercial HVAC system is key for any building wanting a system to last over 20 years. Without proper maintenance, even the best-built systems will fail before reaching their potential life expectancy. Proper maintenance implies that preventative maintenance is done, typically completed on a schedule.
For example, your office’s air filters should be checked and possibly replaced every 2 months. Other types of preventative maintenance include cleaning the air ducts and external and internal components of the HVAC unit, replacing any worn parts, and having a professional HVAC inspection performed at least once a year by a licensed contractor.
Climate & Outside Factors
Outside stressors affecting a commercial HVAC lifespan include climate and weather conditions. In warmer climates, the heat pump or air conditioning may be more affected, but the furnace will receive more wear and tear in a colder environment. Also, the intensity of a certain use, whether for hot or cold air, can affect an HVAC system’s lifespan. Inside stressors can be chemicals from cleaning supplies and outgassing from new materials like carpets or wood. Those chemicals are causing the indoor coils, particularly the copper, to wear out more quickly.
The quality of installation will also affect the overall lifespan of your commercial HVAC system. It’s important to ensure that a qualified and experienced commercial HVAC professional completes the installation of the system. With an expert’s help with installation, you can rest easy that the size of the unit is appropriate in relation to the ductwork size and size of the building; both factors, if not thought out properly, can take years off the useful life of your commercial HVAC system.
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Unitemp has provided professional commercial and industrial businesses with a complete range of HVAC services for over 50 years.