Commercial AC systems typically account for just over half of the total energy consumption in an average building. Potential commercial AC expenses can range from routine repair calls to emergency service for major breakdowns, and ultimately to total replacement of critical components or an entire unit. Significantly, the lowest potential expense — which may well avert these more costly scenarios — is regular professional maintenance of commercial systems by your qualified HVAC contractor.

These are important facts in regard to keeping a commercial HVAC system reliable, efficient, and effective.

• Seal the ducts. HVAC ductwork in commercial buildings often include multiple, lengthy spans of main ducts and branch ducts. Loss of conditioned air through leaky ductwork causes the system to run longer cycles, resulting in higher costs and reduced indoor comfort. Pressure testing of ductwork can reveal the extent of leakage. Professional service to repair duct leaks will include sealing joints and patching holes. As ductwork ages, there will come a time when replacement is the best most efficient option.
• Clean the coils. As AC evaporator coils and condenser coils are continuously exposed to airflow, dust and dirt accumulation on coil surfaces can become an issue. It’s estimated that dirty coils can reduce overall efficiency by more than 30%, as well as cause excess wear and tear on system components at large. Various coil-cleaning methods are available from qualified professional HVAC contractors.
• Change the air filters. All air circulating through the HVAC system passes through the air filters. Clogged, dirty filters reduce airflow and impair the cooling process, which in turn stresses expensive parts like the AC compressor and the blower fans. System air filters should be visually inspected monthly and changed per the filter manufacturer’s instructions and/or the recommendation of a qualified HVAC professional who services the units. Your HVAC professional will change the filters during regular scheduled maintenance and most will set up a filter change schedule if more frequent changes are needed between maintenance visits.
• Utilize intelligent technology. Programmable thermostats maintain consistent temperatures and automatically adjust to accommodate the specific days and hours of activity in a particular facility. Text message alerts can inform designated personnel of temperature irregularities or other HVAC issues during hours when the building is unoccupied.

For qualified, experienced maintenance, service, and replacement of commercial HVAC systems, contact the professionals at Jackson & Sons.