Review
The Goodman 3.5 Ton 16 SEER split system positions itself as a practical mid-market solution for residential cooling needs. This condenser unit delivers 42,000 BTU capacity using scroll compressor technology and R410A refrigerant, a combination trusted across North America for over two decades. Goodman's straightforward engineering approach appeals to both homeowners and contractors who prioritize reliability over cutting-edge features.
Performance metrics are solid across the board. The 16 SEER1 rating exceeds ENERGY STAR requirements, translating to measurable utility bill reductions in most climates. The multi-speed EEM blower motor reaches 2,225 CFM maximum, supporting proper air distribution through ducting. Single-stage operation means the compressor runs at full capacity until the thermostat reaches setpoint, which is efficient for consistent cooling but less optimized than two-stage designs during mild weather.
Pros & Cons
Pros
- 16 SEER1 efficiency qualifies for ENERGY STAR, reducing cooling costs by 20-30% versus older models
- 42,000 BTU cooling capacity handles 3.5-ton loads effectively, though specs list 4 tons
- Scroll compressor technology is proven durable with minimal moving parts, reducing service calls
- Multi-speed EEM blower motor optimizes airflow efficiency at 2,225 maximum CFM
- 10-year warranty with online registration provides solid long-term protection
- Single-phase 208/230/240V electrical compatibility covers most residential installations
Cons
- Single-stage compressor means higher runtime during peak cooling, less efficient than two-stage units
- 73 dB noise level runs slightly louder than high-end models, which matters in quiet neighborhoods
- No variable refrigerant flow technology, making it less adaptable to partial load conditions
Who Should Buy
Best For
Homeowners in moderate climates looking for affordable efficiency improvements and contractors who value straightforward service diagnostics. This unit suits homes that don't require premium performance features but need reliable cooling with reasonable energy consumption.
Consider Alternatives If
Skip this if you live in extreme heat zones or demand ultra-quiet operation, as single-stage units struggle with continuous cooling demands and the 73 dB output can be noticeable.
Installation
Installation demands standard HVAC practices: 3/8 inch liquid line and 7/8 inch suction line with 3/4 inch insulation thickness. The unit requires 208/230/240V single-phase power with 60-amp primary and 50-amp secondary breaker sizing. Height of 58 inches and footprint of 24.5 by 21 inches fits most pad locations. Technicians will appreciate the scroll compressor's simple serviceability and standard valve configurations.
Warranty & Reliability
The 10-year limited warranty activates upon online registration, covering defects in materials and workmanship. This duration matches industry standards for mid-tier equipment and provides meaningful protection without the extended plans common in premium units. Registration is straightforward and critical for claim processing.
Specifications
| SKU | HKSC20DB |
| Brand/Manufacturer | Goodman |
| Cooling BTU | 42,000 |
| Heating BTU | 68,200 |
| Refrigerant | R410A |
| Electrical | 208 / 230 / 240 Volts / 1 Phase |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 9.000000 |
| Feature | Spec |
| Energy Star | Yes |
| SEER1 (Efficiency) | 16 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | Circuit 1: 60 amps / Circuit 2: 50 amps |
| Min. Breaker Size | Circuit 1: 57 amps / Circuit 2: 50 amps |
| Tonnage | 4 Ton |
| Height | 58" |
| Width | 24.5" |
| Depth | 21" |
| Resources | Goodman Installation Manual Goodman Specifications Goodman Parts Manual Goodman Service Manual Goodman Kit Installation Manual 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. |
| Blower Motor | Multi Speed - EEM |
| Maximum CFM | 2,225 |
| Electric Backup Heat Capabilities (Optional) | 5 Kilowatts, 8 Kilowatts, 10 Kilowatts, 15 Kilowatts, 20 Kilowatts |
| Filter Size | 23" x 20" |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Fuel Type | Electric |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
| Electric Heat | 20 Kilowatts |
| Phase | Single Phase |
Frequently Asked Questions
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