HVAC System Unit
HVAC System Unit

HVAC Guide: Top 5 Recommended Central Air Conditioning Units in the US


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Comfort and health have become essential factors in building occupancy and that is why building owners are specific with their requirements for an HVAC unit. To manage a project that requires HVAC, project managers should be keener in screening their

The best in this list is designed and manufactured by Lennox. Its Signature Series is committed to providing higher air and energy efficiency than any other HVAC units in this list by eliminating the use of fossil fuels.

The XC25 serves as the Signature Series flagship, which uses a split system type of central air conditioning unit. It has a SEER rating of 26, which only proves how highly efficient it is. It can cut energy costs up to 50 or 60 percent.

2. and

Tied at the number 2 spot are Daikin and Amana, which are now under the same company. Daikin acquired Amana some years ago but since the latter has already established a good reputation in the HVAC market, Daikin opted to continue using the brand name.

Daikin’s two models surpassed Lennox when it comes to SEER rating and feature variable-capacity type of air conditioners, which are similar to variable-speed, modulating, and inverter-driven ACs.

3. and

Another duo in this list is the Carrier Infinity 21 24ANB1 and Bryant Evolution 180B. Bryant is an independent brand owned by Carrier and are champions in EER. That means that they are the perfect workhorses for the summer season.

Among the brands in this list, Carrier is the most popular one and is greatly recommended by HVAC subcontractors for both home and building owners. The units use two-stage type ACs, which are far from the variable type that they made popular.

A two-stage AC conditions the air in either low or high, where low cooling uses only 70% capacity and is recommended for maintaining even temperatures while high cooling uses 100% capacity to speed up the cooling process.


York is a brand under Johnson Controls along with other brands like Coleman and Fraser. Among the three, though, York is the most widely sold in the different regions of the U.S.

This variable-capacity HVAC unit has a climate adjustment function to achieve optimal energy efficiency while making the inside of the building comfortable. Installers can adjust the unit to dry, humid, or normal climate.


Another Japanese brand that makes it to this list is Rheem Prestige RA20 by Paloma Industries. It is a variable-capacity unit that was introduced in the mid of 2019.

Rheem offers 10-year unit replacement, making it a top choice for project managers who think beyond the construction phase. So when a part fails during the allotted period, you can have the whole unit changed by Paloma.

Another notable feature about Rheem Prestige RA20 is that it uses a Copeland Compressor, which is also used by other HVAC brands like Carrier, Amana, Arocaire, and Goodman, among many others.

Final Thoughts


Most HVAC subcontractor’s recommendations will be using a single or two-stage air conditioning system rather than the above-mentioned units even if they are high-performing units. That’s because these central HVAC systems require higher buying and installation costs. Another reason is their greater potential for mechanical failure. That said, maintenance and repair should be a part of your agreement with your HVAC subcontractor.

Although single-stage and two-stage ACs are better for warmer regions of the country when your priority is using the latest HVAC technology or greener cooling, the central AC units we listed above are the best options you’ll have.

HVAC is an important component of any building project. So, before starting construction, contractors should be able to find the right team to hire and have them connected with other stakeholders through project management software so that their work results are in compliance with the project team’s schedule and the client’s requirements. This way, a contractor is ensured to achieve an optimal HVAC installation.

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