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Sizing a Central AC system in Scurry County starts with what the climate actually demands, and the demand here is not mild. 151 severe weather events were recorded in Scurry County, Texas between 2015 and 2024. At that rate, every system a contractor installs is going to run hard against real weather pressure across its life. A unit sized to a manufacturer's generic regional table will be wrong in ways that show up early. Contractors who work this area factor that load into equipment selection, duct design, and the quality of the seal on every connection, because those details are where a stressed system either holds or fails.
Existing ductwork is what decides most central AC installations in this county, not the choice of unit. Half the homes in Scurry County, Texas were built in 1968 or earlier (2020-2024 ACS 5-year). A house built by then was ducted for whatever equipment came after it, often through modifications layered on over time, and a contractor has to open those runs and measure airflow before a new system can be sized to match. The electrical panel gets the same review, because what a modern unit draws may exceed what the service was last updated to handle.
What a Central AC System Includes
The indoor air handler sits inside the house, usually in a utility closet, attic, or basement, and it pulls warm air from the rooms, moves it across the evaporator coil, and pushes the cooled air back through the supply vents. The outdoor condenser unit sits on a pad beside the house and holds the compressor and condenser coil.
A copper refrigerant line set runs between the indoor and outdoor units, connecting the two sides of the system. The thermostat mounts on an interior wall and gives the homeowner control over when the system runs and what temperature it holds.
The drawing shows the general layout of a central AC system, and a licensed contractor determines exactly how each piece applies to your house.
Get matched in Scurry CountyScurry County, by the numbers
151 severe weather events were recorded in Scurry County, Texas 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 Scurry County, Texas were built in 1968 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesScurry County, Texas holds 6,881 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 76.8% of the occupied homes in Scurry County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRules & Standards Behind Central AC Installation in Scurry County, Texas9 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.
What Scurry County, Texas Requires for HVAC Installation
In Texas a person may not engage in air conditioning and refrigeration contracting unless that person holds a license issued under the state air conditioning and refrigeration contractor law.
Severe Weather Events in Scurry County
Weather puts a load on cooling equipment, and that load is shaped by what actually happens in this part of Texas. A contractor sizing and installing central AC here works from those local conditions.
151 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.