Independent Review · Updated June 2026

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

Solid 3.5-ton 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
3.5 Ton 13 SEER Goodman Air Conditioner with Vertical 21
Current Price
$0
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Authorized dealer · Full manufacturer warranty
// Bottom Line
This ACiQ 3.5-ton coil is ideal for contractors upgrading existing Goodman systems or building budget-conscious replacement packages. The 13 SEER rating meets baseline efficiency standards without premium pricing, making it a practical choice for residential cooling in moderate climates.

Review

The ACiQ 3.5-ton vertical uncased coil represents the accessible middle ground in HVAC replacement components. Built on proven Goodman engineering, this A-coil configuration handles 42,000 BTU cooling capacity and fits vertical installation spaces where horizontal options won't work. At this price point, contractors get reliable performance without premium features, making it a go-to choice for straightforward system replacements across residential and light commercial applications.

Performance metrics show this coil delivers 13 SEER efficiency using R410A refrigerant with a reciprocating single-stage compressor. The 3/8-inch liquid line and 7/8-inch suction line accept standard 30-foot line sets, while 208/230V single-phase electrical requirements mean compatibility with nearly all residential services. A 75 dBA noise signature indicates moderate sound levels, acceptable for indoor installations but not whisper-quiet like variable-speed alternatives.

Pros & Cons

Pros

  • 42,000 BTU cooling capacity matches common 3.5-ton system requirements precisely
  • 13 SEER efficiency balances performance with cost, avoiding premium pricing
  • Vertical A-coil design fits standard 24-inch-wide return plenums with 36.25-inch height
  • Reciprocating compressor offers proven durability with extensive parts availability
  • 10-year warranty with online registration provides solid long-term protection

Cons

  • 13 SEER ranks below modern 16+ SEER standards, limiting long-term energy savings
  • Single-stage cooling means less efficient part-load operation in mild weather
  • 75 dBA noise level runs louder than current variable-speed designs

Who Should Buy

Best For

This coil suits contractors replacing failed indoor units in existing Goodman outdoor systems, particularly for homeowners in moderate climates where higher SEER ratings don't justify cost premiums. It's also appropriate for commercial applications prioritizing upfront savings over operational efficiency.

Consider Alternatives If

Homeowners in hot climates like Arizona or Florida should explore 16+ SEER options, where higher efficiency recovers premium pricing through reduced utility costs within 5-7 years.

3.5 Ton 13 SEER Goodman Air Conditioner with Verti
$0
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Installation

Installation complexity rates as moderate. The 36.25-inch height and 29-inch width fit standard vertical plenum spaces. Sweat valve connections require torch work or professional soldering. Line set insulation comes factory-applied at 3/8-inch thickness. Most contractors complete installation in 2-3 hours once the outdoor unit connects. Comprehensive Goodman documentation covers all steps.

Warranty & Reliability

ACiQ backs this coil with a 10-year parts warranty upon online registration. No labor coverage exists, meaning homeowners pay service calls if problems occur after year one. This protection compares favorably to base-model competitors but trails extended warranties on premium brands.

Specifications

SKUACIQ-4X-EHPD-UPG
Brand/ManufacturerACiQ
Cooling BTU42,000
RefrigerantR410A
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)75
Weight (in lbs)120.000000
FeatureSpec
ConfigurationUpflow / Downflow
Liquid Line3/8"
Suction Line7/8"
Tonnage3.5 Ton
StyleA-Coil
Height36.25"
Width29"
Depth29"
ResourcesGoodman Installation Manual Goodman Specifications Goodman Technical Manual Goodman Warranty Information Goodman Brochure 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 StarNo
SEER1 (Efficiency)13
Condenser StagesSingle Stage
Compressor TypeReciprocating
Liquid Valve Size3/8"
Max Breaker Size40 amps
Min. Breaker Size23.9 amps
Valve TypeSweat
Suction Line Insulation Thickness3/8"
Length30 feet

Frequently Asked Questions

Will this 3.5-ton coil work with my existing Goodman outdoor unit? +
If your outdoor unit is also 3.5 tons, yes. The 42,000 BTU capacity matches standard Goodman condensers. Verify your outdoor unit tonnage on the nameplate. Mismatched tons reduce efficiency and void warranty coverage.
Can I install this myself, or do I need a licensed technician? +
Refrigerant work requires EPA certification in all US states. Sweat connections on the valve require soldering skill. Most homeowners should hire licensed technicians. DIY installation voids the 10-year warranty.
How does 13 SEER compare to newer coils on the market? +
13 SEER ranks below current standards of 16-18 SEER. This coil costs less upfront but costs more to operate. For climates with 5,000+ cooling hours annually, upgrading to 16+ SEER recovers premium costs in utility savings.
What's the difference between this ACiQ coil and premium Goodman alternatives? +
This base-model coil uses single-stage compression and fixed capacity. Premium coils add variable-speed compressors and higher SEER ratings, delivering 20-30 percent better efficiency. Both carry 10-year warranties, but premium options cost 40-60 percent more.
Does the 10-year warranty cover refrigerant leaks or compressor failure? +
Yes, parts are covered for 10 years with registration. Labor is not covered. You pay service visit fees. Maintain annual maintenance to preserve warranty validity.

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