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A contractor quoting a central AC install in Randall County starts with what the local climate actually demands of a system, because sizing decisions that ignore that load produce equipment that runs hard against conditions it was never matched to. 390 severe weather events were recorded in Randall County, Texas between 2015 and 2024. At that rate, severe weather shapes the operating environment of every system put in the ground here, and a contractor who treats it as an edge case will undersize or underbuild the install. Refrigerant line routing, unit placement, and equipment ratings all get decided with that load factored in.
Existing ductwork is what a contractor has to size up before anything else on a central AC installation in this county. Half the homes in Randall County, Texas were built in 1986 or earlier (2020-2024 ACS 5-year). Duct systems laid in during the original build were designed around the equipment of that era, and a new central AC unit draws on different airflow specs than what those trunks and returns were built to handle. If the ductwork cannot carry the new system's demand, the installation scope changes before the unit is even ordered. The electrical service gets the same look, since panel capacity from that period of construction often does not match what a modern condenser pulls at startup.
What a Central AC System Is Made Of
The outdoor condenser unit sits outside the house, usually along a side wall or at the rear, and holds the compressor and condenser coil. The indoor air handler or furnace-mounted evaporator coil sits inside, typically in a closet, attic, or utility space, and is the point where cooled air enters the duct system.
A copper refrigerant line set runs between the two units, linking the indoor and outdoor sides into a single working system. The thermostat mounts on an interior wall and is what the homeowner touches to set temperatures and tell the system when to run.
The drawing shows a typical layout, and a licensed contractor determines exactly how each piece fits the construction of your home.
Get matched in Randall CountyRandall County, by the numbers
390 severe weather events were recorded in Randall 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 Randall County, Texas were built in 1986 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRandall County, Texas holds 61,677 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 67.9% of the occupied homes in Randall County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesRules & Standards Governing Central AC Installation in Randall County, Texas9 sourced rules and standards
What HVAC Installation Looks Like in Randall County
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.
Licensing Rules for HVAC Work in Randall County, Texas
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 Randall County
Randall County weather puts real load on cooling equipment, and how hard a system works over its life is shaped by what the local climate throws at it. That makes local weather data a practical part of any conversation about what to install and how to size it.
390 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.