Independent Review · Updated June 2026

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

Budget-friendly 4-ton coil with R454B efficiency and straightforward installation

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
4 Ton 13 SEER Goodman Air Conditioner with Vertical 21
Current Price
$0
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This ACiQ coil works best for contractors replacing Goodman GSX130483-485 units or homeowners prioritizing affordability without sacrificing core performance. The 4-ton capacity, 48,000 BTU rating, and R454B refrigerant make it a solid fit for mid-sized residential systems in moderate climates.

Review

The ACiQ 4-ton vertical uncased coil fills a practical gap in the mid-market HVAC landscape. Positioned as an affordable alternative to premium Goodman coils, this 48,000 BTU unit uses modern R454B refrigerant while maintaining compatibility with existing Goodman condenser systems through direct replacement of GSX130483, GSX130484, and GSX130485 models. Its A-coil configuration supports both upflow and downflow installations, giving contractors installation flexibility without significant redesign work.

Performance-wise, the 13 SEER1 efficiency rating represents solid baseline cooling capability without premium pricing. The reciprocating compressor delivers 48,000 BTU of cooling capacity, appropriate for 4-ton systems in typical residential applications. Operating at 76 dB, this coil runs louder than high-efficiency models, though still within acceptable range for outdoor condenser placement. Single-stage operation means consistent performance across load conditions without the adaptive efficiency gains found in variable-speed designs.

Pros & Cons

Pros

  • 13 SEER1 efficiency rating meets baseline standards for cost-conscious buyers
  • R454B refrigerant offers modern environmental performance with lower GWP than older alternatives
  • Vertical A-coil design works in upflow or downflow configurations for flexible installation
  • 10-year warranty with online registration provides reasonable long-term protection
  • Sweat valve connections simplify professional installation without specialized adapters

Cons

  • 76 dB operating noise is noticeably louder than premium competitors, potentially problematic for noise-sensitive locations
  • Single-stage compressor lacks efficiency benefits of variable-speed or two-stage designs
  • No ENERGY STAR certification limits appeal for efficiency-focused or rebate-eligible projects

Who Should Buy

Best For

Contractors needing a direct replacement for Goodman GSX130483-485 systems will find this a plug-and-play option. Budget-conscious homeowners upgrading older air conditioners in moderate climates who prioritize cost savings over cutting-edge efficiency should also consider this unit.

Consider Alternatives If

Buyers in hot climates demanding maximum cooling efficiency or those seeking quiet operation should explore higher-SEER alternatives with two-stage or variable-speed compressors.

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

Installation

Installation requires standard HVAC practices with minimal complexity. The unit accepts 3/8 inch liquid lines and 7/8 inch suction lines through sweat-type valves, eliminating specialty adapter costs. Electrical requirements are straightforward, 208/230V single-phase 60 Hz with breaker sizing between 26.3 and 45 amps. A-coil height of 28 inches fits most standard indoor air handler cabinets. The included 30-foot suction line insulation with 3/8 inch thickness meets code requirements for most residential installations.

Warranty & Reliability

The 10-year warranty applies upon online registration, providing a decade of manufacturer coverage against defects. This matches industry standard for residential coils at this price point. Activation through Goodman's online system is straightforward, and coverage includes parts and compressor protection. Homeowners should register immediately upon installation to secure the full term, as registration requirements can affect claim eligibility.

Specifications

SKUACIQ-48-EHPD-UPG
Brand/ManufacturerACiQ
Cooling BTU48,000
RefrigerantR454B
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)76
Weight (in lbs)120.000000
FeatureSpec
ReplacesGSX130483, GSX130484, GSX130485
Energy StarNo
SEER1 (Efficiency)13
Condenser StagesSingle Stage
Compressor TypeReciprocating
Liquid Line3/8"
Suction Line7/8"
Liquid Valve Size3/8"
Max Breaker Size45 amps
Min. Breaker Size26.3 amps
Tonnage4 Ton to 5 Ton
Valve TypeSweat
Height28"
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
StyleA-Coil
Suction Line Insulation Thickness3/8"
Length30 feet

Frequently Asked Questions

Will this coil work with my existing Goodman condenser? +
Yes, this ACiQ coil directly replaces Goodman GSX130483, GSX130484, and GSX130485 models. It uses the same sweat valve connections and 3/8 inch liquid line, 7/8 inch suction line sizing. Verify your condenser model number before ordering, as other Goodman units may require different coil specifications.
What's the difference between SEER1 and SEER2 ratings? +
SEER1 measures efficiency under older, less stringent testing standards from before 2023. The 13 SEER1 rating on this unit would likely translate to approximately 10-11 SEER2 under current testing protocols. Newer efficiency standards account for realistic seasonal variations, resulting in lower numerical ratings for the same equipment.
Is R454B refrigerant better than R410A? +
R454B offers a Global Warming Potential of 239 compared to R410A's 2,088, making it significantly more environmentally responsible. Both are EPA-approved drop-ins for modern systems. R454B cooling capacity and efficiency are comparable to R410A, so performance differences are negligible while environmental benefits are measurable.
How does this compare to higher-SEER options like 14 or 16 SEER? +
Higher SEER ratings typically require two-stage compressors, variable-speed fans, or larger coil surfaces that increase equipment cost substantially. This 13 SEER unit delivers respectable efficiency at lower price point. For moderate climates with average cooling loads, the cost-to-performance ratio often favors this option over premium alternatives.
What if I need to claim warranty? +
Contact Goodman directly with your registration number and purchase documentation. The 10-year coverage includes manufacturing defects. Keep installation records and proof of online registration accessible, as these documents are typically required for processing warranty claims.

Affiliate disclosure: IndustrialRank earns a commission on qualifying purchases at no extra cost to you. We only recommend products we have independently reviewed.