3.5 Ton 14 SEER Goodman Air Conditioner with Vertical 21" Cased Coil Review 2026

// Bottom Line

This ACiQ cased coil works best for contractors pairing it with compatible Goodman condensers in new construction or replacement scenarios where budget matters without sacrificing baseline efficiency. The 14 SEER1 rating and scroll compressor deliver dependable performance for mid-range residential applications across most climate zones.

Review

The ACiQ 3.5 Ton 14 SEER cased A-coil represents the pragmatic middle ground in residential cooling components. Built on Goodman's proven platform, this unit delivers the efficiency homeowners expect without premium pricing. The vertical 21 inch configuration suits most furnace cabinets and tight installations where space constraints exist. Single-stage operation keeps mechanical complexity low, appealing to contractors who value straightforward troubleshooting and parts availability.

Performance metrics tell a reliable story: 42,000 BTU cooling capacity, 14 SEER1 efficiency rating, and scroll compressor technology work together to handle typical residential loads effectively. The unit draws 208/230V single-phase power with a 22 to 35 amp breaker range, fitting standard residential electrical service. At 73 dB, the noise profile runs acceptable though not whisper-quiet. R410A refrigerant ensures compatibility with current market condensers and service infrastructure across all regions.

Pros & Cons

Pros

14 SEER1 efficiency rating balances cost and performance for standard residential cooling
Compact 21 inch width fits tight mechanical spaces and upflow/downflow configurations
Scroll compressor technology provides proven reliability and lower maintenance expectations
10-year warranty with online registration covers defects across the full unit lifespan
42,000 BTU capacity at 3.5 tons matches common residential system sizes accurately

Cons

Single-stage compressor lacks variable capacity, meaning less efficiency at partial load conditions
73 dB noise level runs slightly louder than premium variable-speed alternatives
Not Energy Star certified, so it misses rebates and efficiency incentives in some regions

Who Should Buy

Best For

Contractors building new systems for price-conscious homeowners or those replacing failed coils in existing Goodman equipment. This coil is ideal when the condensing unit is already specified and you need a straightforward A-coil that integrates without complications.

Consider Alternatives If

Homeowners seeking maximum efficiency rebates, quieter operation, or staged cooling should look at higher SEER2 units or variable-capacity alternatives instead.

3.5 Ton 14 SEER Goodman Air Conditioner with Verti

Buy at HVACDirect →

Installation

Installation fits standard practices for A-coil replacement work. The unit weighs 120 pounds and measures 30 inches tall by 21 inches wide and deep, allowing placement in most closets and attic spaces. Liquid and suction line sizes of 3/8 inch and 7/8 inch respectively match common Goodman condenser connections. The 3/8 inch insulation thickness on suction lines meets code and minimizes efficiency loss during operation.

Warranty & Reliability

Goodman backs this coil with a 10-year warranty that activates upon online registration at no cost. Coverage includes manufacturing defects and component failures across the full decade. This competitive warranty length provides reasonable protection for residential applications, though registration is required within a specific window to activate benefits.

Specifications

SKU	ACIQ-4X-EHPD-UPG
Brand/Manufacturer	ACiQ
Cooling BTU	42,000
Refrigerant	R410A
Electrical	208 / 230 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	73
Weight (in lbs)	120.000000
Feature	Spec
Energy Star	No
SEER1 (Efficiency)	14
Condenser Stages	Single Stage
Compressor Type	Scroll
Liquid Valve Size	3/8"
Suction Valve Size	7/8"
Max Breaker Size	35 amps
Min. Breaker Size	22 amps
Tonnage	5 Ton
Height	30"
Width	21"
Depth	21"
Resources	CAPF Installation Manual CAPF Specifications Sheet Goodman Evaporator Coil Warranty You will need Adobe® Acrobat® Reader to view PDF documents.
Safety Information	PROPOSITION 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.
Configuration	Upflow / Downflow
Liquid Line	3/8"
Suction Line	7/8"
Style	A-Coil
Suction Line Insulation Thickness	3/8"
Length	30 feet

Frequently Asked Questions

What condenser units pair with this 3.5 ton cased coil? +

This coil matches any Goodman or ACiQ 3.5 ton condenser using R410A refrigerant and standard connection ports. Verify liquid line (3/8 inch) and suction line (7/8 inch) compatibility before purchasing. Check model numbers in equipment documentation to confirm proper pairing and avoid efficiency loss.

Can this coil install in both upflow and downflow configurations? +

Yes, the unit supports both upflow and downflow installation with its A-coil design and 21 inch width. The vertical orientation works in furnace cabinets positioned above or below the coil. Ensure adequate clearance on all sides and proper ductwork connection angles for maximum airflow.

How does 14 SEER1 compare to current minimum efficiency standards? +

14 SEER1 meets federal minimum efficiency requirements and delivers respectable performance for budget applications. Modern high-efficiency units reach 16-20 SEER2 ratings, offering 15-25% better efficiency but at significantly higher cost. Choose 14 SEER for cost-sensitive projects where moderate efficiency suits the homeowner's goals.

Is this unit Energy Star certified or eligible for rebates? +

No, this unit does not carry Energy Star certification. Many utility rebate programs require Energy Star approval or higher SEER ratings. Homeowners should verify local rebate eligibility before purchasing if incentives influence their decision to upgrade equipment.

What does the 10-year warranty actually cover? +

The warranty covers manufacturing defects and component failures in parts and workmanship. Online registration is required to activate full coverage. Labor costs and installation issues fall outside warranty scope, so verify registration deadlines with documentation.

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