Armstrong Air Conditioner Reviews 2022

Air conditioning units are an investment for your home that is always costly, so choosing an appropriate unit to accommodate your cooling needs is essential. One top brand that many homeowners and HVAC contractors often recommend is Armstrong AC units.

However, selecting the perfect AC unit for your home can be tricky– even once you know your brand– especially given the abundance of options. This article will review Armstrong’s central air conditioning systems to help you determine which of their units is the right choice for your home.

Who Makes Armstrong AC Units

Lennox International, a well-known brand in the HVAC industry, owns and makes Armstrong HVAC products. AirEase, Concord, Ducane, and Magic-Pak are all part of Allied Air, which Lennox owns as well.

As such, these brands are sister brands and offer significantly different product ranges.

What country are Armstrong AC units made in? Armstrong units are made in a state-of-the-art facility in Orangeburg, South Carolina, U.S.A.

Which is Better? (AC Brands Comparison)

While Armstrong may not be a household name like Carrier, Trane, or Lennox, it’s a formidable brand.

Armstrong vs. Lennox Air Conditioner

As we mentioned above, many people consider Armstrong’s lineup the budget version of Lennox’s models.

Factors  Armstrong ACLennox AC
Product Numbers69
Lowest SEER1414.5
Most SEER1617 and 18
Highest SEER2021
Parts Limited Warranty10-year10-year, 12-year

Armstrong is a subsidiary of Lennox, and for this reason, the units are very similar. However, certain parts of Armstrong units may be of lesser quality than those found in Lennox models.

Armstrong vs. Goodman Air Conditioner

Armstrong and Goodman are both great options for homeowners on a budget. Both companies offer decent warranties.

Armstrong products tend to have more advanced technology, such as the antibacterial agent infused in each unit that helps avoid mold, bacteria, and other similar allergens in your home and AC unit.

Armstrong and Goodman air conditioning units feature similar SEER ratings, topping out at around 18 SEER.

Which AC is better, Goodman or Armstrong? It depends on your preferences. Both brands offer similar lineups in that they are budget-friendly and efficient.

Armstrong Air Conditioner

Armstrong air conditioning units are reliable, durable, and efficient. They feature innovative additives such as mold control and various SEER improving techniques.

Many consider Armstrong a budget-friendly version of the main brand of their parent company counterpart, Lennox.

Armstrong Air Conditioner Models

Armstrong offers six air conditioning units. These models range from 1.5 tons to 5 tons and have single-stage, two-stage, or variable capacity compressors.

They provide SEER ratings ranging from 14 to 20 SEER. While 20 SEER is not the best AC efficiency available on the market, it still offers fantastic energy cost reductions. Armstrong’s broad offering of various SEER ratings makes it easy to pick one for your climate and budget.

Armstrong provides a 10-year warranty on all of their air conditioning systems, which is average for the HVAC industry.

The chart below outlines Armstrong’s lineup.

Armstrong Air Conditioner Model NumberSEERCompressorSize Range(Ton)
4SCU20LX20Variable Capacity2-5 ton
4SCU16LS16Two-Stage 3 ton
4SCU16LE16Single-Stage1.5-5 ton
4SCU14LB16Single-Stage1.5-5 ton
4SCU13LE14Single-Stage 1.5-5 ton
4SCU13LB14Single-Stage 1.5-5 ton

Armstrong prides itself on its innovation and product reliability.

Their MHTTM technology is a prime example of their innovative capabilities. The brand developed this fan system that pulls air evenly into each coil in the unit. This translates to all of the coils removing as much heat as possible, thus helping the unit’s efficiency.

The MHTTM technology integrates laced fins that extend contact time between the refrigerant and metal, which creates a more effective cooling system.

What Size Armstrong AC Unit Do I Need?

Armstrong AC units are available in capacities ranging from 1.5 to 5 tons (18,000 to 60,000 BTUs). Use the table below to estimate the optimal size air conditioner based on the square footage of your home.

Armstrong AC Unit Size (Ton to Btu)

Armstrong AC Unit SizeConvert to BTUBest For (sq ft)
1.5 ton18,000 BTU900 sq ft
2 ton24,000 BTU1,200 sq ft
2.5 ton30,000 BTU1,500 sq ft
3 ton36,000 BTU1,800 sq ft
3.5 ton42,000 BTU2,100 sq ft
4 ton48,000 BTU2,400 sq ft
5 ton60,000 BTU3,000 sq ft

How To Determine Tonnage of Armstrong Air Conditioner

You can quickly determine the tonnage of your Armstrong air conditioner unit by examining the model number depicted on the data plate. Usually, the data plate is on the side of the condenser, which is also known as the outdoor unit.

Once you locate the model number, look at the end of the number. The number represents the unit’s nominal BTU in thousands and will be divisible by 6 or 12. A ton of air conditioning is equivalent to 12,000 BTU.

So, once you locate the two digits near the end of the model number, divide it by 12 to convert from BTUs to tons.

For example, if the model number were 8SHP57PD236P, the number would be 36. Divide that by 12, and you’re left with 3, meaning you have a 3-ton unit.

Armstrong’s older models may have a shorter number, but it is the same concept.

Here are some of the common ranges you will encounter:

  • 18 = 1.5 tons
  • 24 = 2 tons
  • 30 = 2.5 tons
  • 36 = 3 tons
  • 42 = 3.5 tons
  • 48 = 4 tons
  • 60 = 5 tons

Armstrong Air Conditioner Prices

Armstrong’s air conditioner lineup encompasses a range of SEER ratings, compressors, and sizes to meet the needs of various homeowners. As the SEER ratings and sizing rises, so does the price.

Armstrong Air Conditioner Model NumbersSEERCompressorProduct OnlyInstalled Price
4SCU20LX20Variable Capacity$5,820$7,860

Price estimates are based on 3 tonnage sizes.

The chart above expresses the average cost of a 3-ton unit in multiple models. While it may not give an exact estimate for the size and model you need, it is a great reference tool.

And the following is another Armstrong Air Conditioner Price List, which is organized by size.

Armstrong  AC Unit SizeProduct OnlyInstalled Price
1.5 ton$2,580$3,410
2 ton$3,030$4,040
2.5 ton$3,510$4,720
3 ton$3,510$5,440
3.5 ton$4,140$5,620
4 ton$4,240$5,760
5 ton$4,330$5,900

The prices are based on 16 SEER single-stage products.


1.Why Isn’t My Air Conditioner Working

Your Armstrong air conditioning unit may not work for several reasons. Before you call in an HVAC technician, you can check a couple of things–

  • Verify that the power source is good.
  • Ensure the unit is plugged in and check your breaker box for a tripped breaker.
  • Check your fuse box to see if the unit blew a fuse. If you’re not familiar with electrical repairs, call in a professional.

2.How to Remove Armstrong AC Shroud

Armstrong offers several shroud configurations, but the installation and removal process is very similar. Four bolts hold the shroud in place. Remove the bolts to remove the shroud.

3.How to Winterize Armstrong Home Air Conditioner

  • In the off-season, typically during winter months, shut off the power to the unit.
  • Remove any debris caught in the unit, then add a protective cover to the top of the outdoor condenser.
  • Additionally, wax the outside of the unit. Brush off snow and ice from the protective cover and ensure the cover is still securely in place.

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