Review
The ACiQ 3.5 ton system with Goodman components represents a practical middle-market option for HVAC contractors and DIY homeowners upgrading aging furnace-and-AC combos. This downflow configuration targets replacement jobs in homes where ductwork is already vertical, eliminating expensive rework. The 100,000 BTU heating capacity and 42,000 BTU cooling output balance modest tonnage against realistic sizing for most single-family applications. With Energy Star certification and rebate availability, this system hits an attractive price-to-performance ratio that justifies consideration for cost-conscious buyers.
The furnace delivers impressive 97% AFUE efficiency through a modulating burner that adjusts flame output continuously rather than cycling on and off, reducing fuel waste and improving comfort consistency. The air conditioning side achieves 14 SEER1 efficiency using a scroll compressor and single-stage operation, adequate for mild-to-moderate climates but lacking the part-load efficiency of two-stage designs. The variable-speed ECM blower motor runs at 73 dBA and peaks at 2,000 CFM, dynamically matching airflow to heating and cooling demand. R410A refrigerant compliance ensures modern environmental standards.
Pros & Cons
Pros
- 97% AFUE furnace efficiency significantly reduces heating costs compared to 80-85% systems
- 14 SEER cooling rating qualifies for Energy Star certification and many regional rebates
- Modulating burner and variable-speed ECM blower motor optimize comfort and reduce runtime noise at 73 dBA
- Flexible fuel option handles both natural gas and propane installations
- 10-year warranty with online registration provides solid coverage without premium pricing
Cons
- Single-stage air conditioning compressor cannot modulate, limiting efficiency on mild days compared to two-stage units
- 42,000 cooling BTU falls between standard tonnage ratings, creating potential matching issues with existing evaporator coils
- Downflow configuration limits placement flexibility and requires specific ductwork orientation
Who Should Buy
Best For
Contractors handling replacement jobs in homes with existing downflow ductwork, and budget-conscious homeowners in moderate climates seeking reliable efficiency gains without premium pricing. This system works well for properties in Midwest and Northern regions where heating dominates the load.
Consider Alternatives If
Homeowners in hot climates needing advanced cooling performance should explore two-stage or variable-capacity models with higher SEER ratings.
Installation
This downflow system requires existing ductwork configured for vertical discharge, making it ideal for basement or attic installations. The plastic/PVC exhaust flue reduces venting costs compared to metal alternatives. Electrical needs are modest at 115V single-phase with 22-35 amp breaker sizing, compatible with most home panels. Suction and liquid lines use standard 7/8-inch and 3/8-inch sizing with 3/8-inch insulation thickness included.
Warranty & Reliability
ACiQ provides 10-year parts and labor coverage when you register online after purchase, a straightforward registration process that avoids surprise claim denials. This warranty matches many mid-tier competitors and covers manufacturing defects. Homeowners should retain documentation and follow maintenance schedules to preserve eligibility.
Specifications
| SKU | ACIQ-4X-EHPD-UPG |
| Brand/Manufacturer | ACiQ |
| Cooling BTU | 42,000 |
| Heating BTU | 100,000 |
| Refrigerant | R410A |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 120.000000 |
| Feature | Spec |
| Energy Star | Yes |
| 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. |
| AHRI Certificate Number | 7424272 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/8" |
| Length | 30 feet |
Frequently Asked Questions
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