When it comes to residential and commercial air conditioning systems, it is essential to have a filter in place to ensure the air is free of impurities. This helps to prevent indoor air pollution and also protects the system from any particles that could cause damage. All central heating and cooling systems must have an air filter, although it can be more difficult to locate in some HVAC units than others. It is important to note that it is dangerous to stick your hand inside the fan cabinet when the fan is turned on, as you may lose fingers on the rotating fan of the air conditioner fan assembly or on its drive motor or belt. If the blades of the air conditioner fan or heating fan are clogged with dirt (or mold), it is best to have a professional thoroughly clean the air handling unit, including the fan blades themselves.
Other vertical air treatment systems may be downflow units in which return air enters through the top of the air controller or fan and the air conditioning exits through the supply ducts connected at the bottom of the unit. Even if the system works without a filter, experts recommend that you do not use it because it can cause serious damage to the air conditioning system and, consequently, you will have to pay for expensive repairs. A cascade air filter was designed for which the wall filter shown here was the first stage of easily accessible dust filtration. If you can't find your air conditioning system filters (there may be more than one air filter), here are some places to look for them. This photo shows an air filter located between a return air chamber (on the right side of the photo) and the bottom of the air handling unit.
It can be designed to hold an air filter against the inner face of the lid of the return air chamber with grille located at the bottom of the air treatment system. For super-quiet 80-pen Ruud Achiever air controllers, there is a molded permanent air filter that slides down to the back of the unit when you look at it from the burner side. Horizontal air treatment systems, such as attic-mounted horizontal air controllers, will have return air entering one end of the air handling unit and supply air exiting at the other end. We also have filters and pads for humidifiers from all major manufacturers (including Air King, American Standard, Aprilaire, GeneralAire, and Honeywell).It is important to inspect and document type and condition of your air conditioner filter every month during heating or cooling season. Once you have located all filters in your HVAC system, make sure to document their location for future building owners, occupants, or repairers. In addition to locating your filters, it is also important to regularly check them for any signs of wear or damage.
If you notice any issues with your filters, it is best to replace them as soon as possible. This will help ensure that your HVAC system continues to run efficiently and effectively. It is also important to regularly clean your filters as this will help reduce energy costs and improve indoor air quality. Overall, all central heating and cooling systems must have an air filter in order to keep your home or business safe from indoor pollutants. It is important to locate all filters in your HVAC system and regularly check them for any signs of wear or damage.
Additionally, make sure to document their location for future building owners, occupants, or repairers.
