Commercial Refrigeration Systems

National Mini Splits supplies commercial refrigeration components for walk-in coolers, walk-in freezers, foodservice cold rooms, floral coolers, beverage storage, institutional refrigeration, and replacement projects. This department focuses on Turbo Air evaporators and condensing units identified by exact manufacturer model number.

Shop commercial refrigeration systems or contact our equipment team before ordering a replacement or matched system.

Walk-in refrigeration equipment by component

Evaporators and unit coolers

The evaporator is installed inside the refrigerated space. It absorbs heat from the box and moves air across the coil. Selection depends on the calculated box load, design temperature, coil temperature difference, refrigerant, defrost method, fan configuration, voltage, and the approved condensing-unit match.

Condensing units

The condensing unit rejects heat outside the refrigerated space. Confirm compressor capacity at the required suction and ambient conditions, refrigerant, voltage and phase, receiver and control requirements, installation location, and compatibility with the evaporator and expansion device.

Commercial refrigeration applications

• Walk-in coolers for restaurants, grocery, convenience, beverage, floral, and institutional facilities
• Walk-in freezers and low-temperature cold-storage rooms
• Replacement evaporators, condensing units, and matched refrigeration components
• New refrigeration projects where the complete box load and operating conditions are documented

What to confirm before ordering

1. Calculated box load: Do not size from room dimensions alone. Product load, door openings, insulation, ambient conditions, infiltration, lighting, people, and pull-down requirements affect capacity.
2. Operating temperature: Cooler, medium-temperature, freezer, and low-temperature applications require different equipment and defrost strategies.
3. Refrigerant: Verify the refrigerant for every major component. Similar model families are not automatically interchangeable.
4. Electrical service: Match voltage, phase, minimum circuit requirements, controls, disconnects, and overcurrent protection.
5. Defrost method: Confirm air, electric, or other specified defrost requirements for the application.
6. Approved component match: Verify evaporator, condensing unit, expansion device, controls, line set, and accessories as one complete system.

Replacing an existing refrigeration component

Start with the full manufacturer model and serial information from the existing equipment, then document the box temperature, refrigerant, voltage, phase, line sizes, controls, and the model number of the paired component. A newer model with similar nominal capacity may still require changes to refrigerant controls, electrical service, line sizing, or system accessories.

Keep photographs of the equipment labels and installation area. For model help, send the information through our contact page.

Turbo Air commercial refrigeration

Our Turbo Air catalog includes medium-profile, low-profile, and thin-profile evaporators along with condensing units for a range of walk-in cooler and freezer applications. Product pages show the exact Turbo Air model, current National Mini Splits price, compare-at price, published specifications, and ordering checks.

Browse all Turbo Air commercial refrigeration products.

Shipping and delivery

Free standard shipping applies within the eligible contiguous United States service area for this Turbo Air collection. Alaska, Hawaii, U.S. territories, expedited service, inside delivery, liftgate service, limited-access delivery, and other upgraded freight services may require a separate quote. Review our shipping policy and prepare the delivery location before equipment ships.

Commercial refrigeration questions

Is an evaporator or condensing unit a complete refrigeration system?

No. Each is a major component that must be matched with the remaining refrigeration equipment, controls, refrigerant circuit, electrical requirements, and the calculated box load.

Can I replace equipment by horsepower or BTU alone?

No. Nominal horsepower or BTU is only part of the selection. Verify capacity at the actual operating conditions, refrigerant, voltage, phase, defrost method, controls, line sizes, dimensions, and the approved component match.

Who should install commercial refrigeration equipment?

Use a qualified commercial refrigeration professional familiar with the applicable refrigerant, electrical work, controls, commissioning requirements, permits, and local codes.