Description
The Goodman GLZS5BA4810 is a 4-ton, 48,000 BTU, 15.2 SEER2 air conditioner condenser built around R-32 refrigerant and a single-stage scroll compressor, giving residential and light-commercial buyers a straightforward path to reliable, efficient cooling. If your current system is struggling to keep a larger home or commercial space comfortable through peak summer heat, this condenser delivers the capacity to close that gap without overcomplicating the setup. At 15.2 SEER2, it clears modern efficiency benchmarks while running on standard 208 to 230V single-phase power, which makes it a practical fit for most existing electrical services. The R-32 refrigerant charge is lower-GWP than R-410A, putting this unit in line with where the industry is heading.
Key Features
- 15.2 SEER2 Efficiency: Meets current federal efficiency standards and keeps monthly cooling costs lower than older, less efficient condensers running the same capacity.
- R-32 Refrigerant: R-32 has a significantly lower global warming potential than R-410A, so this condenser is ready for today's refrigerant regulations rather than being one refresh cycle away from obsolescence.
- Single-Stage Scroll Compressor: Scroll compressors run quieter and more reliably than reciprocating types, and the single-stage design keeps servicing straightforward.
- 73.6 dB Sound Rating: At 73.6 decibels, the unit is audible but not disruptive, suitable for side-yard or rooftop placements near occupied spaces.
- Standard Single-Phase Power: Runs on 208 to 230V, 1-phase power with a 45-amp maximum overcurrent protection rating, so it fits most residential and light-commercial electrical panels without a service upgrade.
- Goodman GLZS5B Product Line: Backed by Goodman's established manufacturing standards, with parts availability and documentation that are widely accessible across the supply chain.
Is this the right unit for your project?
The GLZS5BA4810 is sized for homes or spaces in the 1,800 to 2,500 square foot range as a general rule of thumb, though actual sizing depends on insulation levels, ceiling height, window area, local climate, and internal heat loads. A Manual J load calculation confirms the right size for your specific building. Undersizing a 4-ton condenser in a smaller space forces the compressor to short-cycle, which raises wear and humidity problems. Oversizing it in a space that only needs 2.5 or 3 tons does the same. This unit is best matched to a building where a proper load calculation already points to 4 tons.
Split-system condenser vs. package unit: which one fits your job?
The GLZS5BA4810 is a split-system condenser, meaning it works with a separate indoor coil or air handler and uses the building's existing duct system. A package unit, by contrast, houses the compressor, coil, and sometimes the furnace in one cabinet that sits outdoors (usually on a rooftop or ground pad), with only duct connections running into the building. Split systems like this Goodman typically offer more flexibility in equipment placement, tend to run quieter indoors, and allow you to match the indoor unit to your specific duct layout. Package units are a better fit when interior mechanical space is limited or the installation is replacing an existing package unit on a commercial rooftop. If your building already has an indoor air handler or furnace with a coil cabinet, the GLZS5BA4810 is the right category.
Where it fits best
- Primary cooling for single-family homes in the 1,800 to 2,500 sq ft range (load-calculation confirmed)
- Replacement condenser upgrade for existing split-system setups running R-410A systems that need a full equipment refresh
- Light-commercial spaces with single-phase 208 to 230V service and existing duct infrastructure
- Sunbelt and warm-climate regions where a 4-ton capacity is commonly required for code-compliant load coverage
- New construction residential installs where the mechanical room already accommodates a separate air handler
Why R-32 matters for a condenser purchase right now
R-410A, the refrigerant in most split systems installed over the last 20 years, is being phased down under EPA regulations tied to its high global warming potential (GWP of 2,088). R-32 has a GWP of 675, well below R-410A, and is already the refrigerant of choice in international markets where phase-down rules moved faster. The GLZS5BA4810 ships with an R-32 charge, which means it is aligned with the direction domestic regulations are heading. It is not a drop-in replacement for R-410A equipment; R-32 systems require compatible components rated for its slightly higher operating pressures. If you are specifying this condenser, confirm that your coil, line set, and service tools are R-32 compatible.
Installation & what else you’ll need
To complete the installation, you will need: a matched 4-ton indoor coil or air handler rated for R-32 refrigerant; a refrigerant line set with a 3/8-inch liquid line and 7/8-inch suction line (the sizes the GLZS5BA4810 calls for); a disconnect box and whip within reach of the unit per local electrical code; a concrete pad or equipment stand to keep the condenser level and clear of ground moisture; a thermostat compatible with a single-stage cooling system; and duct connections or transitions from the air handler to the existing duct system. The unit requires a dedicated 208 to 230V, single-phase circuit with a maximum overcurrent protection of 45 amps and a minimum circuit ampacity of 28.3 amps. Confirm that your refrigerant recovery and charging equipment is rated for R-32 before starting; R-32 is mildly flammable and requires tools and procedures appropriate for A2L refrigerants.
Frequently Asked Questions
How many tons is the Goodman GLZS5BA4810?
The Goodman GLZS5BA4810 is a 4-ton air conditioner condenser, rated at 48,000 BTU of cooling capacity. Four tons is typically appropriate for homes in the 1,800 to 2,500 square foot range, but a Manual J load calculation is the only reliable way to confirm that 4 tons is right for your specific building.
What refrigerant does the GLZS5BA4810 use?
The GLZS5BA4810 uses R-32 refrigerant. R-32 has a lower global warming potential than R-410A and is compatible with the direction current EPA regulations are moving. It is not interchangeable with R-410A, so indoor coils, line sets, and service equipment must be rated for R-32.
What SEER2 rating does this 4-ton Goodman condenser have?
The GLZS5BA4810 carries a 15.2 SEER2 rating. SEER2 is the current federal testing standard, replacing the older SEER metric with a more realistic measurement of seasonal efficiency. A 15.2 SEER2 condenser meets current minimum efficiency requirements and delivers meaningful savings over older, lower-rated units.
What size line set does the GLZS5BA4810 require?
The GLZS5BA4810 requires a 3/8-inch OD liquid line and a 7/8-inch OD suction line. These are the line set sizes specified for this condenser. Using the wrong line sizes affects system performance and refrigerant charge, so confirm compatibility before reusing an existing line set from a prior installation.
How loud is the Goodman GLZS5BA4810 air conditioner condenser?
The GLZS5BA4810 has a rated sound level of 73.6 decibels. For context, that is roughly comparable to a vacuum cleaner at a moderate distance. It is audible from nearby, but not unusually loud for a 4-ton residential condenser, and is manageable for typical side-yard or rear-yard placements.
What breaker size does a 4-ton Goodman GLZS5BA4810 condenser need?
The GLZS5BA4810 requires a maximum overcurrent protection of 45 amps and draws a minimum circuit ampacity of 28.3 amps. A dedicated 208 to 230V, single-phase circuit sized to those specifications is required. Always verify breaker sizing against the unit's data plate and local electrical code before wiring.
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