Most buildings have opportunities for energy savings related to their HVAC system, regardless of size, age, or other factors. Even in brand-new buildings, there is typically something that can be optimized to produce energy savings.
Two of the most common ways to save energy with air filters are:
- Protecting the coils for more efficient heat transfer—helping to keep the facility’s air clean and cool with the least amount of energy used
- Reducing overall air resistance to limit the amount of energy needed to power the fan and push air through the filter
Joe W. Fly Co. Austin Branch Manager Hunt Foster explains how air filters and HVAC fans affect energy use and costs.
Fan Efficiency: Constant Volume vs. Variable Frequency
Equipping your system with a Variable Frequency Drive (VFD) fan is one way to take advantage of the opportunity for savings. Unlike Constant Volume (CV) fans, a VFD can adjust air flow based on the current needs of the building.
Transitioning from a CV fan to a VFD can be an expensive project, so this should not be considered unless reducing energy costs is an urgent business issue or the organization has significant capital that it is committed to investing in building improvements.
Fortunately, there are many other ways for a company to save on air filtration costs. For example, one of the largest potential areas for improved energy costs with Constant Volume fans is related to the efficiency of the compressor.
Optimizing Your Air Filters to Protect Equipment
The compressor typically uses more than 50% of all the energy consumed by an HVAC unit, so this is a very important component to consider when attempting to reduce costs. Keeping the coils clean by protecting them with a properly-fitting filter can help save a lot of energy—and money—over the long term.
Defining the ideal filter for a facility can be a complicated process. The nature of the building, the activities performed by occupants, and government or industry regulations are all important factors.
However, the potential savings associated with identifying and installing the optimal filter can be substantial. When Joe W. Fly Co. technicians inspect customers’ units, they often find opportunities to recommend new products or services that can help increase the system’s efficiency.
Learn more about ways to find savings in your HVAC system.