Residential AC Coils

Shop residential AC coils for replacement systems and new HVAC projects at Public HVAC Solutions. Our inventory includes cased A-coils from brands such as Trane, Aspen, Lennox and Ameristar, with different tonnages, cabinet widths and configurations available. You will also find coils designed for different refrigerants, including R-410A and newer refrigerant systems. Check the specifications on each product carefully to make sure the coil fits the equipment and application you are working with.

Residential Cooling Coils for Different HVAC Systems

Residential AC coils are available in a range of sizes and configurations, and the right choice depends on more than tonnage. Cabinet width, refrigerant, installation position and the equipment being paired with the coil all matter.

Public HVAC Solutions carries coils across common residential capacities, including models in the 1.5- to 5-ton range as inventory allows. Some coils cover more than one nominal tonnage, while others are intended for more specific system combinations.

Cabinet size is another important consideration, especially when a cased coil is being installed with a furnace. Before ordering, compare the dimensions and installation requirements of the new coil with the existing indoor and outdoor equipment.

Cased A-Coils for Central Air Conditioning Systems

Many residential split systems use a cased A-coil as the indoor coil. It is commonly installed with a furnace or other compatible indoor equipment and works with the outdoor condenser or heat pump to provide cooling.

Available models may differ by capacity, cabinet width, orientation, refrigerant and metering setup. Current inventory includes equipment from Trane, Aspen, Lennox, Ameristar and other manufacturers.

If you are replacing an existing coil, do not rely on brand or tonnage alone. Model-specific dimensions and approved equipment combinations can vary, even between products that appear similar.

What to Check Before Buying a Residential AC Coil

Before ordering a replacement coil, compare the key specifications with the rest of the HVAC system.

• Cooling capacity: Make sure the coil is appropriate for the system's required tonnage.
• Refrigerant: Verify whether the equipment is designed for R-410A, R-454B or another specified refrigerant.
• Outdoor equipment: Confirm that the coil is compatible with the intended AC condenser or heat pump.
• Cabinet width: Compare the coil dimensions with the furnace, air handler and available installation space.
• Orientation: Check whether the application calls for upflow, downflow, horizontal or another approved position.
• Metering device: Review the manufacturer's requirements for the refrigerant metering setup.
• Connections: Compare refrigerant line sizes, drain connections and other installation details.

A coil with the same nominal tonnage as the existing unit is not automatically a direct replacement. If there is any question about sizing or compatibility, have an HVAC professional verify the equipment combination before ordering.

Choosing the Right Coil for Your Residential HVAC System

If you are replacing a failed evaporator coil, start with the model information from the existing indoor and outdoor equipment. That will help narrow down the correct capacity, refrigerant and cabinet configuration.

For a split air conditioning system, the coil needs to work with the outdoor condenser and the indoor furnace or blower setup. Heat pump systems have their own matching requirements. Refrigerant is especially important when replacing older equipment because newer coils are not automatically compatible with older systems.

If several major components need replacement, it may also be worth reviewing a matched HVAC set instead of selecting each component separately.

Browse the available residential coils, or contact Public HVAC Solutions if you need help finding equipment for a specific application.

Residential AC Coils Shipped Across the United States and Canada

Public HVAC Solutions ships HVAC equipment to customers across the United States and Canada. Inventory changes regularly, so check each product listing for current specifications, pricing and availability.

Larger HVAC equipment may ship by freight, and transit times can vary by destination. Review our shipping information before ordering. We also recommend receiving and inspecting your equipment before scheduling installation.

Residential AC Coils FAQs

Can I replace only the evaporator coil in my AC system?

Sometimes. If the outdoor unit and other major components are still in good condition, a coil-only replacement may be an option. The replacement coil still needs to match the system's refrigerant, capacity and approved equipment combination. An HVAC professional can confirm whether replacing the coil alone makes sense or whether other components should be replaced at the same time.

Does the evaporator coil affect the SEER2 rating of an air conditioner?

Yes. SEER2 applies to the performance of a matched system, not just the outdoor condenser. The indoor coil is part of that combination, so changing the coil can affect the system's rated efficiency. If efficiency is an important part of the purchase, verify the approved equipment match rather than assuming the outdoor unit's SEER2 rating applies with any coil.

How do I know whether I need an R-410A or R-454B coil?

Check the refrigerant specified for the existing or planned system. R-410A is common in older equipment, while many newer systems use refrigerants such as R-454B. The two should not be treated as interchangeable. Use the model information and manufacturer specifications for the outdoor equipment to confirm which coil is appropriate.