Review
The ACiQ 3.5 ton horizontal furnace-coil system is a workhorse designed specifically for retrofit installations where spatial constraints demand a compact footprint. With 120,000 BTU heating output and 42,000 BTU cooling capacity, it bridges the gap between budget equipment and high-efficiency premium systems. This configuration appeals to contractors managing multiple replacement jobs annually and homeowners upgrading from decade-old equipment who need dependable performance without enterprise-level pricing.
On the heating side, the 96% AFUE rating converts nearly all fuel to usable warmth, delivering genuine energy savings compared to 80-90% AFUE models still in homes built before 2010. The two-stage burner modulates between high and low fire, reducing short cycling and extending component life. Cooling reaches 13 SEER, which meets baseline efficiency standards but trails newer 14-16 SEER systems. The single-stage reciprocating compressor runs full capacity without part-load modulation, though the ECM blower compensates by adjusting CFM intelligently across 2000 maximum.
Pros & Cons
Pros
- 96% AFUE furnace efficiency means lower heating bills and minimal wasted fuel
- Two-stage burner allows the furnace to modulate output, reducing cycling and improving comfort
- ECM multi-speed blower optimizes airflow from 2000 CFM maximum while reducing electricity draw
- PVC exhaust flue reduces installation costs compared to traditional metal venting
- Compact horizontal dimensions fit tight spaces: 24.5 inches tall, 26 inches wide, 21.125 inches deep
- 10-year warranty with online registration provides solid long-term protection
Cons
- 13 SEER rating is mid-tier efficiency, not high-efficiency like 16+ SEER systems available today
- Single-stage condenser means cooling runs at full capacity with no part-load modulation
- 75 dB noise level is audible during operation, slightly louder than premium models
- R410A refrigerant phase-out concerns as industry transitions to newer, more efficient refrigerants
- No Energy Star certification limits rebate eligibility in many utility programs
Who Should Buy
Best For
Contractors replacing older horizontal furnace-coil combinations in attics or basements, and homeowners in moderate climates seeking reliable equipment without paying premium prices. This system delivers predictable performance for builders and HVAC shops installing standardized replacement packages.
Consider Alternatives If
Homeowners in extreme heat or cold climates should prioritize higher SEER/AFUE ratings, and those seeking to maximize utility rebates should look for Energy Star certified equipment.
Installation
Horizontal configuration fits attics and tight basement spaces without requiring vertical chase work. The PVC plastic exhaust flue eliminates expensive metal venting, though installers must verify local codes permit plastic flues in their jurisdiction. Electrical requirements demand 208/230V single phase, 60Hz service with 23.9 to 40 amp breaker sizing. Suction and liquid lines measure 7/8 inch and 3/8 inch respectively with sweat-connection A-coil design. Installation manual and specifications sheet provide detailed guidance.
Warranty & Reliability
ACiQ provides a 10-year comprehensive warranty when registered online after installation. This covers parts and labor on furnace and coil failures, offering meaningful protection against premature compressor or heat exchanger failure. Registration must occur within 30 days of startup to activate coverage. Coverage is limited to original purchaser and does not extend to second owners, which impacts resale property value considerations.
Specifications
| SKU | ACIQ-4X-EHPD-UPG |
| Brand/Manufacturer | ACiQ |
| Cooling BTU | 42,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 75 |
| Weight (in lbs) | 120.000000 |
| Feature | Spec |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Multi-Speed - ECM |
| Maximum CFM | 2000 |
| Configuration | Horizontal |
| Flue Location | Right |
| Energy Star | No |
| Burner Stages | Two |
| Fuel Type | Gas |
| Height | 24.5" |
| Width | 26" |
| Depth | 21.125" |
| Resources | CHPF Installation Manual CHPF 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. |
| SEER1 (Efficiency) | 13 |
| Condenser Stages | Single Stage |
| Compressor Type | Reciprocating |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Liquid Valve Size | 3/8" |
| Max Breaker Size | 40 amps |
| Min. Breaker Size | 23.9 amps |
| Tonnage | 5 Ton |
| Valve Type | Sweat |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/8" |
| Length | 30 feet |
Frequently Asked Questions
Affiliate disclosure: IndustrialRank earns a commission on qualifying purchases at no extra cost to you. We only recommend products we have independently reviewed.