Do I Need My AC Fan Speed Adjusted?
Unless your HVAC has a variable-speed blower fan, it will always circulate air throughout your home at the same rate of speed. This rate is determined by how fast the blower fan in your air handler spins. Although the fan only spins at one speed, most units still allow you to adjust the speed to be faster or slower. When you adjust the fan speed, it changes the airflow rate and will allow you to cool the home slower or more quickly. Changing the fan speed is usually not necessary and can potentially create issues with your AC system’s performance. Nonetheless, there are situations where adjusting the fan speed can help improve home comfort. Let’s now take a look at the effect that fan speed has on your AC system and the reasons why you might need to have it adjusted. Fan Speed and Airflow Rates To work efficiently, air conditioning systems need to circulate so many cubic feet of air per minute. The exact volume required is determined by the size of the AC unit. The general rule is that the blower fan needs to circulate between 350 and 400 cubic feet of air per minute for each AC...
View Article Read More