Independent Review · Updated June 2026

3 Ton 14 SEER Goodman Air Conditioner with Vertical 21" Cased Coil

Solid 14 SEER efficiency with R454B refrigerant and scroll compressor reliability

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 14 SEER Goodman Air Conditioner with Vertical 21
Current Price
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// Bottom Line
This ACiQ 3-ton unit delivers respectable 14 SEER1 efficiency at a competitive price point, making it attractive for budget-conscious homeowners and contractors managing cost-sensitive replacements. The R454B refrigerant and scroll compressor provide dependable cooling for moderate climates where peak efficiency isn't the primary concern.

Review

The ACiQ 3-ton air conditioner with vertical 21-inch cased coil represents straightforward cooling equipment for the mainstream residential replacement market. Rated at 36,000 BTU with 14 SEER1 efficiency and weighing 120 pounds, this unit uses the newer R454B refrigerant while maintaining scroll compressor architecture trusted across the industry. Positioned between budget bare-bones models and premium variable-capacity systems, it occupies the practical middle ground where most homeowners make purchasing decisions.

Performance specifications show a single-stage compressor operating on 208/230V single-phase power requiring 18.7 to 30-amp breaker protection. The 3/8-inch liquid line and 3/4-inch suction line with matching valve sizes follow standard industrial piping conventions. At 73 dB sound output, noise levels remain typical for this class but noticeable in quiet environments. R454B refrigerant meets current EPA standards while avoiding legacy concerns tied to R410A phase-down timelines affecting older systems.

Pros & Cons

Pros

  • 14 SEER1 efficiency rating meets mid-tier performance standards for 36,000 BTU cooling capacity
  • R454B refrigerant future-proofs the system against phase-out concerns affecting older R410A units
  • Scroll compressor design delivers established reliability with lower vibration and noise compared to reciprocating models
  • Single-stage operation simplifies controls and reduces potential failure points in the compressor assembly
  • Compact 21-inch width fits tight spaces where standard 24-inch condensers cannot be installed

Cons

  • Not Energy Star certified, limiting appeal for homeowners pursuing maximum tax credits or rebates
  • 73 dB noise level is audible during operation, particularly noticeable in quiet residential settings
  • Single-stage compressor cannot modulate capacity, resulting in less precise temperature control than two-stage alternatives

Who Should Buy

Best For

Budget-focused homeowners replacing 10+ year old systems in moderate climates, and contractors needing reliable equipment for competitive pricing in residential markets. This unit suits properties where 14 SEER efficiency balances cost and performance without premium pricing.

Consider Alternatives If

Anyone prioritizing Energy Star certification, noise-sensitive installations near bedrooms, or properties in high-heat regions where two-stage cooling modulation provides measurable energy savings.

3 Ton 14 SEER Goodman Air Conditioner with Vertica
$0
Buy at HVACDirect →

Installation

Installation requires standard mechanical connections using 3/8-inch and 3/4-inch line sets with 3/4-inch suction insulation. The unit accommodates both upflow and downflow configurations with A-coil style integration, simplifying retrofit applications into existing ductwork. Electrical work demands 208/230V single-phase circuits rated between 18.7 and 30 amps. The 21-inch width advantage helps contractors navigate space-constrained installations impossible with oversized condensers.

Warranty & Reliability

Goodman provides 10-year coverage on components when registered online, a reasonable protection period covering compressor, coil, and electrical components. Registration is mandatory for full coverage, adding a minor administrative step but unlocking standard industry-length protection. Evaporator coil carries separate Goodman warranty terms covering matched system configurations.

Specifications

SKUACiQ-36-EHPD-UPG
Brand/ManufacturerACiQ
Cooling BTU36,000
RefrigerantR454B
Electrical208 / 230v 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73
Weight (in lbs)120.000000
FeatureSpec
Energy StarNo
SEER1 (Efficiency)14
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Line3/8"
Suction Line3/4"
Liquid Valve Size3/8"
Suction Valve Size3/4"
Max Breaker Size30 Amps
Min. Breaker Size18.7 Amps
Tonnage3.5 Ton
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
StyleA-Coil
Suction Line Insulation Thickness3/4"
Length30 feet

Frequently Asked Questions

How does 14 SEER1 compare to modern high-efficiency units? +
14 SEER1 represents mid-tier efficiency, roughly 10-15% lower than premium 16-18 SEER systems but adequate for moderate climates. It balances operational cost against purchase price, yielding modest utility savings versus budget models without premium expense.
Will this condenser work with my existing Goodman furnace and coil? +
Yes, provided your evaporator coil matches R454B refrigerant compatibility and tonnage ratings. Contact Goodman directly with your existing system specs, as pre-2020 coils may require replacement to avoid efficiency loss or performance issues.
Why isn't this unit Energy Star certified? +
Energy Star designation requires minimum 15 SEER2 ratings (roughly equivalent to 16-17 SEER1). This unit's 14 SEER1 falls below that threshold, eliminating qualification for federal tax credits or some state rebate programs available to higher-rated alternatives.
What makes scroll compressors better than reciprocating designs? +
Scroll technology reduces vibration and noise while generating fewer peak pressures that stress components. Maintenance intervals extend, and failure modes affect fewer supporting parts, contributing to overall system longevity and quieter operation compared to older piston designs.
Does online registration really matter for the 10-year warranty? +
Yes, registration is required. Without it, Goodman limits coverage to one year. Online registration takes five minutes and unlocks full 10-year protection, making it a critical administrative step.

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