The Seasonal Energy Efficiency Ratio is an important factor to consider when purchasing a high-efficiency air conditioning system.
The SEER rating determines the efficiency of an air conditioner unit and the cost of using one.
Significance of SEER
The minimum SEER rating set by the U.S. government is 13. As the SEER rating increases, the efficiency of an air conditioner unit also increases. SEER ratings alone may not always ensure optimum performance of an air conditioner unit, because proper installation is also important for the unit to function efficiently. There may be cases when an older air conditioner unit may perform better than a newer air conditioner unit that is not installed properly. Operating expenses are also affected if the air conditioner unit is improperly installed.
The size of an air conditioner unit should be appropriate for the size of the home. Avoid making a rough estimate of the size of the unit to use in a particular house; the unit size may not match the size of the home that is to be cooled. Consult a St. Louis HVAC professional, who will calculate the cooling load required for a particular area in the house. The HVAC technician will use information such as the size of the room and insulation levels to calculate the size of the air conditioner unit that should be used.
Insufficient airflow affects the SEER performance of high-efficiency air conditioner units. Improper installation may result in inadequate airflow, which can cause the following:
- Evaporator coil fails to extract enough heat from the air to cool it effectively. As a result, the system is forced to work harder to achieve the thermostat settings.
- When airflow is inadequate, humidity will increase and it will adversely affect comfort levels.
- The efficiency of air conditioner filters is also affected by inadequate airflow.
- Inadequate airflow can trigger a domino effect that can lead to serious problems such as water damage inside the house.
Inadequate airflow may be caused by the following conditions:
- undersized ducts
- poorly designed duct layout
- routing of ducts in areas not covered by the air conditioning
Inadequate refrigerant levels reduce the SEER performance of a unit and may damage important components of an HVAC system.
- Around 70 percent of air conditioner units do not have a sufficient amount of refrigerant.
- Overcharged systems may have a refrigerant volume two times higher than what is required.
- Undercharged systems result from extra-long refrigerant lines.
The condition of ductwork also affects the efficiency of an air conditioning system. Duct leakage may result in an increase in energy expenses. A leak in the ductwork also affects the living environment inside the house. In order to enhance the efficiency of an air conditioner unit, it is necessary to do the following:
- Check for duct leakage.
- Use a pressure test to determine the extent of damage on the ductwork.
- A duct sealing process is required when leakage goes beyond the acceptable minimum.
St. Louis High-Efficiency HVAC System
It is best to consult a professional HVAC company to conduct an audit and check if your home is ready to support the high SEER ratings of your HVAC system. Call Air Excellence Heating and Cooling at (636) 980-0998 for an appointment.