Independent Review · Updated June 2026

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

Budget-friendly 3-ton coil with solid 13 SEER efficiency and proven reliability.

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
$0
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// Bottom Line
This ACiQ coil is ideal for contractors replacing older Goodman GSX systems or homeowners wanting mid-range efficiency without premium pricing. The 13 SEER1 rating and R454B refrigerant deliver solid performance for moderate climates, though it won't match higher-tier competitors in extreme heat.

Review

The ACiQ 3-ton vertical uncased coil slots into the practical middle ground of residential HVAC equipment. Built as a compatible replacement for legacy Goodman GSX models, this unit targets contractors and homeowners who value straightforward compatibility and solid performance over cutting-edge features. The 36,000 BTU capacity handles typical single-family cooling loads efficiently, and the A-coil design accommodates flexible installation orientations for real-world ductwork constraints.

Performance specs are respectable without being exceptional. The 13 SEER1 rating meets current minimum efficiency standards and delivers reasonable operating costs across moderate climates. Running at 74 dB, noise output sits slightly above whisper-quiet competitors but remains acceptable for most residential settings. The single-stage reciprocating compressor runs continuously at full capacity rather than modulating, which keeps initial costs down but means less efficiency during partial-load conditions like mild spring days.

Pros & Cons

Pros

  • 13 SEER1 efficiency meets current standards without Energy Star premium costs
  • Direct replacement for GSX130362, GSX130363, and GSX130365 simplifies retrofit jobs
  • A-coil design handles both upflow and downflow configurations for flexible installation
  • 10-year warranty with online registration covers manufacturing defects comprehensively
  • R454B refrigerant ensures future-proof operation as older refrigerants phase out

Cons

  • Single-stage compressor limits part-load efficiency in mild weather conditions
  • 74 dB noise level runs slightly louder than variable-speed alternatives
  • Not Energy Star certified, so customers miss tax credits in some jurisdictions

Who Should Buy

Best For

Contractors handling standard Goodman replacements will appreciate the direct compatibility and straightforward installation. Homeowners in moderate climates seeking reliable cooling without premium pricing will find good value in this coil's balance of efficiency and affordability.

Consider Alternatives If

Look elsewhere if you need Energy Star certification for rebates, live in extreme heat climates requiring maximum efficiency, or prioritize ultra-quiet operation below 70 dB.

3 Ton 13 SEER Goodman Air Conditioner with Vertica
$0
Buy at HVACDirect →

Installation

Installation is contractor-friendly. The unit accepts both 3/8-inch and 3/4-inch sweat valve connections with 7/8-inch suction lines, matching common lineset configurations. Electrical requirements are straightforward, 208/230V single-phase 60Hz with 19.1 to 30-amp breaker sizing. The 20-by-20-by-28.5-inch footprint fits standard vertical closets. Supplied 30-foot insulation thickness of 3/8-inch addresses typical condensation management.

Warranty & Reliability

Goodman's 10-year parts warranty activates upon online registration, protecting against manufacturing defects without requiring proof of professional installation. This coverage is standard across most mid-tier coils and provides reasonable peace of mind. Labor and refrigerant costs fall outside warranty scope, so actual repair expenses vary based on failure type and technician rates.

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 Ton to 3.5 Ton
Valve TypeSweat
Height28.5"
Width20"
Depth20 1/8"
ResourcesCAUF Installation Manual CAUF 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 outdoor unit? +
Yes, if your condenser is one of these models: GSX130362, GSX130363, or GSX130365. The 36,000 BTU capacity and valve configurations match those units. Confirm refrigerant type with your existing system before installation.
Can I install this myself? +
Installation requires EPA certification for refrigerant handling and specialized tools for brazing sweat connections. Most homeowners should hire a licensed HVAC contractor. Improper installation voids the 10-year warranty.
How does 13 SEER1 compare to newer equipment? +
13 SEER1 meets current minimum standards but ranks below 16-18 SEER systems. You'll save roughly 15-25 percent on cooling costs versus older units, though premium models offer greater savings over time in hot climates.
What's the difference between SEER1 and the older SEER ratings I've heard about? +
SEER1 uses updated testing conditions closer to real-world operation than legacy SEER ratings. A 13 SEER1 unit is roughly equivalent to an 11-12 SEER unit under old testing, so don't directly compare old and new ratings.
Does the warranty cover refrigerant and labor costs? +
No. The 10-year warranty covers equipment defects only. You pay separately for refrigerant, service calls, and labor, which typically runs $300-800 per repair depending on the issue.

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