Heating, ventilation, and air-conditioning (HVAC) are essential to the comfortable operation of commercial buildings. HVAC systems provide thermal comfort in winter and cooling in summer. It also provides air change to remove indoor pollutants, keep away airborne pathogens and control the humidity level. HVAC systems are very important for all types of business operations. HVAC equipment failures can lead to high energy costs, employee complaints, and in some extreme cases could result in costly legal proceedings. So it is important for HVAC owners and managers to perform regular maintenance on their systems.
Ideally, the entire system should be inspected at least twice a year by qualified service personnel at minimum. It is best to inspect the system before every hot and humid season begins. It is important to inspect the system when it is in operation so that one can see what parts of the equipment are working or not. If possible, look for any malfunctioning components before an emergency situation arises.