Independent Review · Updated June 2026

3 Ton 15 SEER Goodman Air Conditioner with Vertical 24.5" Cased Coil

Energy Star 16 SEER coil delivers efficient cooling in compact vertical footprint

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 15 SEER Goodman Air Conditioner with Vertical 24.5
Current Price
$0
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This 3-ton A-coil excels for contractors retrofitting existing systems or homeowners upgrading to higher efficiency. The 16 SEER1 rating and Energy Star certification make it ideal for climate zones where cooling costs matter, particularly in upflow/downflow applications where space is tight.

Review

The Goodman 3-ton vertical A-coil represents a solid middle-ground option in the residential cooling market. Built by one of North America's largest HVAC manufacturers and distributed through Online Supply, this unit targets contractors and homeowners looking to balance efficiency gains with reasonable pricing. The vertical 24.5-inch cased configuration solves spatial constraints in many existing installations, while the Energy Star certification signals modern refrigerant handling and performance standards.

Cooling capacity reaches 34,800 BTU with a 16 SEER1 efficiency rating, translating to approximately 20-25 percent better performance than baseline 13 SEER legacy equipment. The scroll compressor and R410A refrigerant combination delivers consistent operation across the 208/230V single-phase electrical spec. Noise runs at 73.5 dBA, comparable to other single-stage residential units. The 3/8-inch liquid and 7/8-inch suction line sizes integrate with standard field connections and 30-foot insulated suction line reduces jobsite fabrication.

Pros & Cons

Pros

  • 16 SEER1 efficiency rating with Energy Star certification reduces operating costs versus older 13-15 SEER units
  • Compact 29x29x38.25 inch vertical footprint fits tightly in basements, attics, and mechanical closets
  • R410A refrigerant and scroll compressor provide proven reliability in residential applications
  • 10-year warranty with online registration covers manufacturing defects and parts replacement
  • 34,800 BTU cooling capacity handles 3-ton loads at manageable 73.5 dBA noise level

Cons

  • 16 SEER1 spec is lower than newer 18-20+ SEER2 models currently entering the market
  • Single-stage compressor lacks modulation capability for variable comfort or efficiency optimization
  • Online Supply branding suggests HVAC distributor channel, not always available at retail

Who Should Buy

Best For

Contractors performing residential system replacements in moderate climates and homeowners seeking efficiency upgrades without premium pricing. This coil works especially well for systems serving 1,500-2,000 square foot homes where 3-ton capacity matches the load profile.

Consider Alternatives If

Buyers in high-efficiency-mandate markets should compare 18+ SEER2 models, and those needing variable capacity should look for dual-stage compressor options.

3 Ton 15 SEER Goodman Air Conditioner with Vertica
$0
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Installation

Installation requires standard HVAC practices with no unusual complications. The 30-pound weight allows two-person handling in tight spaces. Verify your furnace or air handler accepts upflow/downflow coil mounting before ordering. Electrical service must support 18.7 to 30-amp breaker sizing at 208/230V single-phase. Ensure proper refrigerant line sizing and connection to your condenser unit.

Warranty & Reliability

Goodman provides 10-year parts coverage when you register the unit online after installation. This covers refrigerant leaks, compressor failure, and component defects. Registration is straightforward through Goodman's website and typically takes minutes. No labor coverage is included, so factor in service call costs for repairs beyond the first year.

Specifications

SKULS38783830
Brand/ManufacturerOnline Supply
Cooling BTU34,800
RefrigerantR410A
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73.5
Weight (in lbs)30.000000
FeatureSpec
ConfigurationUpflow / Downflow
Liquid Line3/8"
Suction Line7/8"
Tonnage3 Ton
StyleA-Coil
Height38.25"
Width29"
Depth29"
ResourcesGoodman Brochure Goodman Specifications Goodman Installation Manual Goodman Warranty Information Goodman Service Instructions Goodman Kit Instructions Goodman Parts Manual You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.
Energy StarYes
SEER1 (Efficiency)16
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size30 amps
Min. Breaker Size18.7 amps
Suction Line Insulation Thickness3/8"
Length30 feet

Frequently Asked Questions

How does 16 SEER1 compare to newer SEER2 ratings? +
SEER1 and SEER2 use different test conditions. The 16 SEER1 unit approximately equals 12-13 SEER2. New regulations favor SEER2 ratings, so check local code requirements. Newer high-efficiency coils now offer 18-20+ SEER2, which may be mandatory in your jurisdiction by 2025.
Will this coil fit my existing furnace? +
The vertical A-coil accommodates upflow and downflow applications. Confirm your furnace cabinet dimensions allow the 29x29x38.25 inch footprint. Most standard 3-ton furnaces accept this configuration, but vertical clearance and ductwork connections vary by installation.
What efficiency savings should I expect annually? +
A 16 SEER1 unit costs roughly 20-25 percent less to operate than 13 SEER equipment. In moderate climates using 1,500 cooling hours yearly, expect $200-400 annual savings versus older units, depending on local electricity rates and cooling demand.
How does this compare to Carrier or Lennox equivalents? +
Goodman, Carrier, and Lennox all offer comparable 3-ton 16 SEER1 coils at similar price points. Goodman typically costs 10-15 percent less due to distributor channel pricing. All three provide solid reliability. Carrier and Lennox brand recognition commands a small premium.
Does the 10-year warranty cover refrigerant? +
Yes, refrigerant leaks fall under Goodman's 10-year parts warranty. However, labor and service calls are not covered. You pay for the technician's time and travel, which typically runs $150-300 per visit in most markets.

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