Tell us about the job
Takes about a minute. No obligation.
A contractor quoting a central AC installation in Orange County has to size the system for the house, not for a weather record that has kept this area relatively quiet. 69 severe weather events were recorded in Orange County, Indiana between 2015 and 2024. At that rate, severe weather is an event here rather than a standing condition, which means a system's performance over its life is shaped far more by how it was sized and installed than by what storms have asked of it. Ductwork layout, equipment match, and refrigerant charge on day one are what determine whether a new system holds up.
Ductwork laid down for older heating systems was routed, sized, and sealed for a different job. Half the homes in Orange County, Indiana were built in 1980 or earlier (2020-2024 ACS 5-year). That gap between what is in the walls and what a new central AC unit needs to move air efficiently is where an installation gets complicated or straightforward. A contractor opening up the system to see what the existing runs can carry, and whether the electrical service handles the load, gets a clearer picture than any permit date or visual inspection from the outside provides.
What Gets Installed With a New Central AC
The outdoor condenser unit sits outside the house, usually on a concrete pad at ground level, and holds the compressor and condenser coil. Inside, the air handler or furnace-mounted evaporator coil lives in a utility space, basement, or closet and is where the system pulls heat out of the indoor air. These two units are the core of what a contractor installs.
A copper refrigerant line set runs between the indoor and outdoor units, connecting them through an exterior wall. The thermostat goes on an interior wall and gives the homeowner control over the whole system. A condensate drain line also runs from the indoor coil to a floor drain or outside, carrying away the moisture the coil pulls from the air.
The drawing shows a typical layout, and a licensed contractor determines exactly how each piece fits the configuration of your house.
Find a contractor in Orange CountyOrange County, Indiana, by the numbers
69 severe weather events were recorded in Orange County, Indiana 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 Orange County, Indiana were built in 1980 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOrange County, Indiana holds 9,101 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 78.7% of the occupied homes in Orange County, Indiana (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCode & Licensing Record for Central AC Installation in Orange County, Indiana8 sourced rules and standards
What happens when the contractor comes out
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.
Severe Weather Events in Orange County
Weather puts a measurable load on heating and cooling equipment, and that load is local. What the climate does in Orange County shapes how hard a central AC system has to work and what it needs to be built to handle.
69 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.