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Sizing a central AC system correctly is the first decision a contractor has to get right before anything else on the job can hold. Homes in Conway County, AR run cooling about five months a year, from May through September. The compressor and condenser fan carry that full load across every one of those months, starting and stopping through heat that does not relent until fall. An undersized system runs longer cycles, and the contactor closes and opens more often than it was rated for. That accumulated wear shows up in the equipment, not in a log somewhere, and a contractor quoting a replacement here prices the load calculation before they price the box.
Ductwork sized for an older system often cannot move the air volume a current central AC unit requires, and that gap is where an installation job either stays on schedule or expands. Half the homes in Conway County, Arkansas were built in 1984 or earlier (2020-2024 ACS 5-year). A contractor assessing a home in this county has to open and measure what is already in the walls before any equipment selection makes sense, because the existing duct layout may need reworking before a new system can perform to spec. The electrical service gets the same look, since panels in houses of this vintage were not sized for the draw of current equipment.
What a Central AC System Includes
The outdoor condenser unit sits on a concrete pad beside the house and holds the compressor and condenser coil. Inside, the air handler or furnace cabinet stands in a utility space, basement, or attic and pulls air across the evaporator coil. Together these two units are what a new central AC installation puts in place.
The refrigerant line set runs between the two units, carrying refrigerant through insulated copper tubing that passes through an exterior wall. A thermostat mounts on an interior wall where it reads the temperature and signals the system to run or stop.
The drawing shows a typical layout, and a licensed contractor determines exactly what fits and where in your house.
Find a contractor in Conway CountyConway County, Arkansas, by the numbers
79 severe weather events were recorded in Conway County, Arkansas between 2015 and 2024.
NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31.Half the homes in Conway County, Arkansas were built in 1984 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesConway County, Arkansas holds 9,703 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 74.1% of the occupied homes in Conway County, Arkansas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRules & Standards Behind Central AC Installation in Conway County, Arkansas10 sourced rules and standards
What the Installation Actually Looks Like
Split-system central air conditioners rated below 45,000 Btu/h manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Split-system central air conditioners rated at or above 45,000 Btu/h manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Split-system central air conditioners manufactured between January 1, 2015 and December 31, 2022 had to meet 13 SEER, the metric that preceded SEER2.
Single-package central air conditioners manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Space-constrained central air conditioners manufactured on or after January 1, 2023 must meet a federal minimum of 11.7 SEER2.
Federal efficiency standards for split-system central air conditioners and heat pumps are set on each certified combination of outdoor unit and indoor coil rather than on the outdoor unit alone.
Residential and light commercial air conditioning and heat pump systems assembled in the field, including mini-splits and unitary systems, may not be installed on or after January 1, 2025 using a refrigerant with a global warming potential above 700.
A field-assembled system whose specified components were all manufactured or imported before January 1, 2025 carries no installation compliance date under the refrigerant restrictions and may still be installed.
Contractor Rules in Conway County, Arkansas
An Arkansas HVACR licence is good across the state: no city or county may require its own licence to do HVACR work, though local permits and inspections still apply.
Arkansas requires an HVACR licence or registration: it is unlawful to do HVACR work without the appropriate one unless the chapter exempts you.
Severe Weather Events in Conway County
Outdoor conditions put a direct load on cooling equipment, and that load varies by where you live. A system sized and installed for Conway County's weather history holds up differently than one built to a generic standard.
79 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.