Facing A/C Replacement? Factors to Consider
Doing research for an A/C replacement is a good use of time because it’s a complex process that requires careful choices for your comfort, satisfaction, energy bills and the system’s lifetime. These are the most important factors that affect the system you choose:
A/C Replacement Size
An improperly sized A/C unit will increase energy bills and shorten system life. The HVAC contractors you interview should do a load calculation of your home using Manual J, which takes into account your home’s energy efficiency, air infiltration rates, cubic footage, floorplan design and your lifestyle. Too large a system will run in short spurts, driving up cooling costs and leaving humidity behind. Too small a system may not be capable of adequately cooling during excessively hot weather.
You can choose between a package and a split system. A package system contains all the air conditioner’s components and sits outside your home or on the roof. These are also called weatherized systems. A split system is the more common choice when making an A/C replacement, where the condenser sits outdoors and the indoor air handling unit is inside.
The minimum seasonal energy efficiency ratio (SEER) for air conditioners stands at 13 and goes into the 20s. Features that improve efficiency and comfort in our region include thermal expansion valves, which adjust the amount of refrigerant sent to the evaporator coil based on cooling needs, improving efficiency.
A fan delay switch will run the blower slightly longer than the condenser and circulate all the conditioned air that’s inside the ductwork. While the switch doesn’t increase the SEER, it will improve comfort by making use of all the air you’ve paid to cool.
Make certain that the HVAC contractor inspects your ductwork before the installation process and verifies that it’s the right size for the system you’ve chosen. The ducts should be checked for leakage and sealed with mastic or metal tape, and never duct tape. Duct tape’s adhesive is short-lived.
To learn more about an A/C replacement, contact a commercial air conditioning service provider , providing HVAC services for commercial buildings.