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A Central AC system here is sized and installed for a short, concentrated run. Homes in Western Connecticut Planning Region, CT run cooling about two months a year, from July through August. After months off the compressor, the condenser fan, and the contactor all sit dormant, and a loose connection or a refrigerant charge that was off at startup does not announce itself until the first hot day in July. A contractor quoting a new system in this region has to account for that idle period in how the equipment is commissioned, because a fault that would surface quickly under heavy use can stay hidden until the homeowner needs the system most.
Ductwork laid down for one kind of system rarely carries a new central AC unit without adjustment. Half the homes in Western Connecticut Planning Region, Connecticut were built in 1971 or earlier (2020-2024 ACS 5-year). That means a contractor sizing and routing a new installation here is working with duct runs built around equipment that has since been replaced, sometimes more than once, and the gaps between what the house has and what a new system demands show up in the ductwork before anything else. A panel that has been updated since the house went up may be fine. The duct layout is the part that gets opened and measured before the equipment quote means much.
What Gets Installed With a New Central AC
The outdoor condenser unit sits outside the house, usually on a concrete pad along an exterior wall, and houses the compressor and condenser coil. Inside, the air handler mounts in a utility space, basement, or closet and holds the evaporator coil and the blower that moves air through the home.
The thermostat goes on an interior wall where it reads the air temperature and signals the system to run or stop. A condensate drain line runs from the air handler to a nearby drain, carrying away the moisture the coil pulls from indoor air.
The drawing shows a typical layout, and a licensed contractor determines what fits the specifics of your house.
Find a contractor in Western Connecticut Planning RegionWestern Connecticut in Facts
Half the homes in Western Connecticut Planning Region, Connecticut were built in 1971 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesWestern Connecticut Planning Region, Connecticut holds 251,530 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 66.4% of the occupied homes in Western Connecticut Planning Region, Connecticut (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCode and Licensing Record for Central AC Installation in Western Connecticut Planning Region, Connecticut9 rules and standards
What HVAC Installation Looks Like in Western Connecticut
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 Western Connecticut Planning Region, Connecticut
Connecticut requires a state licence to perform, or to advertise, heating, piping and cooling work: no person may practise an occupation this chapter covers without first obtaining one.