Independent Review · Updated June 2026

3 Ton 13 SEER Goodman Air Conditioner with Vertical 21" Cased Coil

Solid 3-ton cased coil delivering 13 SEER efficiency at contractor-friendly pricing

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 13 SEER Goodman Air Conditioner with Vertical 21
Current Price
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// Bottom Line
This ACiQ cased coil is built for contractors replacing Goodman GSX units in existing systems where upflow or downflow configuration works. The 13 SEER rating hits the efficiency sweet spot for budget-conscious homeowners who aren't chasing premium SEER2 ratings, and the vertical 21-inch footprint solves tight installation spaces.

Review

The ACiQ 3-ton cased coil represents the practical middle ground in residential air conditioning. Positioned as a direct replacement for Goodman GSX130362, GSX130363, and GSX130365 models, this unit targets contractors performing system upgrades where equipment compatibility matters as much as performance. The vertical 21-inch configuration solves a real installation problem, fitting attics and closets that reject standard horizontal coils. At 36,000 BTU cooling capacity and 13 SEER efficiency, it's not exotic, but it's exactly what many residential retrofits need.

Performance numbers tell a grounded story. The 13 SEER1 rating delivers measurable efficiency improvement over 10-SEER legacy equipment without pushing into premium pricing territory. The reciprocating compressor runs single-stage, meaning it cycles on and off rather than modulating, which is common at this price point. The 74 dB noise level is honest, not whisper-quiet, but acceptable for utility closets and attics. Electrical specs stay straightforward: 208/230 volt single-phase operation with 19.1 to 30-amp breaker sizing fits standard residential panels. The R454B refrigerant keeps you current with environmental regulations without retrofit complexity.

Pros & Cons

Pros

  • 13 SEER efficiency balances operating costs with affordability, realistic for most residential retrofits
  • Vertical 21-inch cased coil fits constrained spaces where horizontal coils won't work
  • Direct GSX130362, GSX130363, GSX130365 replacement eliminates compatibility guesswork
  • R454B refrigerant aligns with modern environmental standards and equipment
  • 30-amp breaker compatibility works with standard residential electrical panels

Cons

  • 74 dB noise level is noticeably louder than premium variable-speed units, concerns noise-sensitive homeowners
  • Single-stage compressor lacks efficiency gains from modulating or two-stage designs
  • No Energy Star certification means missing potential utility rebates in some regions

Who Should Buy

Best For

Contractors performing equipment swaps in homes with existing Goodman GSX condensers will appreciate the direct replacement compatibility. Homeowners upgrading older 10-SEER systems on tight budgets and those with space constraints benefit from the vertical cased coil design and reasonable efficiency bump.

Consider Alternatives If

Skip this unit if you need Energy Star certification for rebate programs, prioritize quiet operation near bedrooms, or want variable-speed compressor technology for premium efficiency in new construction.

3 Ton 13 SEER Goodman Air Conditioner with Vertica
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Installation

Installation follows familiar patterns for contractors. Sweat valve connections use standard 3/8-inch liquid and 3/4-inch suction lines, with a 3/8-inch insulation thickness on the suction side. The 30-foot included lineset cuts most onsite work. Upflow and downflow configuration flexibility adapts to existing ductwork. The 26-inch height, 21-inch width, and 21-inch depth fit tight spaces where horizontal coils fail. Standard nitrogen purging and evacuation procedures apply. Budget 2 to 4 hours for straightforward changeouts.

Warranty & Reliability

The 10-year warranty requires online registration but provides solid coverage for parts and labor through Goodman's network. This reflects Goodman's confidence in the reciprocating compressor design, which trades complexity for durability. Registration is straightforward and typically completed at installation. The warranty doesn't cover refrigerant or damage from poor maintenance, so proper airflow and filter changes remain the homeowner's responsibility.

Specifications

SKUACiQ-36-EHPD-UPG
Brand/ManufacturerACiQ
Cooling BTU36,000
RefrigerantR454B
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)74
Weight (in lbs)120.000000
FeatureSpec
ReplacesGSX130362, GSX130363, GSX130365
Energy StarNo
SEER1 (Efficiency)13
Condenser StagesSingle Stage
Compressor TypeReciprocating
Liquid Valve Size3/8"
Suction Valve Size3/4"
Max Breaker Size30 amps
Min. Breaker Size19.1 amps
Tonnage3.5 Ton
Valve TypeSweat
Height26"
Width21"
Depth21"
ResourcesCAPF Installation Manual CAPF Specifications Sheet Goodman Evaporator Coil Warranty 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.
ConfigurationUpflow / Downflow
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
Suction Line Insulation Thickness3/8"
Length30 feet

Frequently Asked Questions

Will this coil work with my existing Goodman GSX condenser? +
Yes, if your condenser is a GSX130362, GSX130363, or GSX130365 model. Verify the model number on your outdoor unit before ordering. This coil is engineered as a direct swap, so lineset sizes and refrigerant type match existing systems without adapters or modifications.
Can I install this in a tight attic space? +
Absolutely. The vertical 21-inch cased A-coil design solves attic constraints where horizontal coils won't fit. Measure height at 26 inches, width at 21 inches, and depth at 21 inches to confirm clearance. This is one of the primary reasons contractors specify this model for retrofit jobs.
How much will my electric bills drop with 13 SEER versus my current 10-SEER system? +
Expect 20 to 30 percent lower cooling costs depending on climate and usage patterns. A 13 SEER unit uses 30 percent less electricity than a 10 SEER unit for the same cooling work. Your actual savings depend on local electricity rates and how much you run your AC during peak seasons.
Is 13 SEER enough, or should I pay more for 16 SEER? +
13 SEER makes financial sense for most homeowners. Higher SEER ratings cost significantly more upfront but save maybe $100 to 200 annually in most climates. If you plan to stay in your home over ten years and your utility costs are high, the math favors upgrading. For typical five to seven year holds, 13 SEER breaks even faster.
Do I need online registration to activate the warranty? +
Yes. Registration is required to unlock the full 10-year coverage. Goodman makes this simple through their website, and most contractors handle it at installation. Without registration, you may face limited warranty terms, so complete it before the technician leaves.

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