Frigidaire 3 Ton 14.3 SEER2 AC & 80% Gas Furnace System (C-Cabinet) – 34,800/72,000 BTU

Frigidaire 3 Ton 14.3 SEER2 AC & 80% Gas Furnace System Overview

The Frigidaire 3 Ton 72,000 BTU 80% gas furnace and AC system is a factory-matched Frigidaire split system pairing an 80% AFUE gas furnace with a matched condenser and cased evaporator coil, built around furnace model FG7SA-072C-T35CP. This is a factory-matched Frigidaire split system built to heat and cool a home of roughly 1,400–1,700 square feet. It pairs a 34,800 BTU condenser rated at 14.3 SEER2 with a 72,000 BTU 80% AFUE gas furnace and the matching cased evaporator coil, so the cooling and heating halves are engineered to work together rather than assembled from mismatched parts. The pairing is AHRI certified under certificate 208778832.

What’s Included in This System

Outdoor Condenser — FSA3BE4M1SN36K

A 3 ton, 34,800 BTU single-stage condensing unit rated at 14.3 SEER2. This is the outdoor half of the system and carries the cooling capacity rating.

Evaporator Coil — C74BHMX36C-C

The matched cased indoor coil that sits directly on top of the furnace.

Buying a condenser and coil that were not certified together is the most common reason a new system never reaches its rated efficiency. The pairing shipped here is the one the manufacturer tested and certified, and the coil is included in the price.

Gas Furnace — FG7SA-072C-T35CP

A 72,000 BTU input furnace at 80% AFUE, suited to a mid-sized home with average insulation and typical duct runs. The C-cabinet designation in the model number identifies the cabinet width and blower size — confirm it clears your existing furnace closet or platform before ordering.

Is a 3 Ton System Right for Your Home?

A 3 ton system generally suits homes of roughly 1,400–1,700 square feet in a hot-humid climate like Arkansas. Treat that as a starting point rather than an answer — ceiling height, insulation quality, window area and orientation, duct condition and shading all move the number substantially.

Oversizing is the more expensive mistake. A system too large for the space cools quickly, shuts off, and never runs long enough to pull humidity out of the air. The result is a cold, clammy house and a compressor that short-cycles its way to an early failure. Undersizing costs you comfort on the hottest days; oversizing costs you the equipment.

If you are replacing an existing system, matching the old tonnage is only sound reasoning if the old system actually kept up. If it struggled through August, get a Manual J load calculation before you order. Note also that the furnace and the air conditioner are sized independently: 3 tons of cooling does not automatically dictate 72,000 BTU of heating.

What 80% AFUE Actually Means for Your Gas Bill

AFUE measures how much of the gas you buy becomes heat inside your house. At 80% AFUE, roughly 80 cents of every gas dollar heats the home and the remaining 20% leaves through the flue. On this furnace that translates to about 57,600 BTU of usable heat from a 72,000 BTU input.

An 80% furnace vents through conventional metal flue pipe, which usually means you can reuse existing venting. That keeps installation simpler and cheaper than a condensing model. In a mild-winter climate the shorter payback period frequently favours 80% over 95% — the fuel saving on a furnace that runs a few weeks a year rarely repays the higher install cost. If your winters run colder or gas rates are high, compare the 95% AFUE version of this system.

Installation Requirements

• Professional installation required — self-installation voids the manufacturer warranty
• Natural gas supply and conventional metal flue venting required
• 208/230V single-phase electrical service
• Line set, thermostat, pad and whip sold separately
• Local permitting and inspection requirements vary by jurisdiction

Specifications

Full dimensional and sound-rating data is available on request — contact us for the Frigidaire specification sheet for these models.

Frequently Asked Questions

Does this system include the evaporator coil?

Yes. The C74BHMX36C-C cased coil is included and is the coil Frigidaire certified with this condenser and furnace. Line set, thermostat, pad and whip are sold separately.

What size home does a 3 ton system heat and cool?

Roughly 1,400–1,700 square feet in a hot-humid climate, though insulation, ceiling height, window area and duct condition shift that range significantly. A Manual J load calculation gives you the real number for your house.

Can I reuse my existing flue?

Usually yes. An 80% AFUE furnace vents through conventional metal flue pipe, so existing venting can often be reused if it is in sound condition and correctly sized. Your installer will verify this.

Can I install this myself?

No. Gas furnace installation involves combustion venting and refrigerant handling, both of which require licensing. Self-installation voids the manufacturer warranty and, with gas appliances, creates a genuine safety risk.

What refrigerant does this system use?

Contact us to confirm the refrigerant charge for this model before ordering, particularly if you are reusing an existing line set.

What is the difference between the Residential and Commercial shipping options?

The AHRI certificate number for this matched pair is 208778832. That reference is what utility rebate programmes and most permit offices ask for as proof the outdoor unit, coil and indoor unit are a certified match, so keep it with your paperwork when you file. All component model numbers are listed above for your load calculation and equipment schedule. Homeowners claiming an efficiency rebate will usually be asked for the same certificate number.

Shipping & Delivery