Atosa AUF24SD 24 inch Undercounter Freezer
Atosa AUF24SD 24" Undercounter Freezer — One-Section Reach-In
The Atosa AUF24SD is a 24-inch one-section undercounter freezer engineered to deliver true commercial frozen storage at the point of use. At 23-7/8" wide and 32-1/2" tall on its 2" casters, it slides under a standard 36" prep counter, fits the same cabinet gap as a residential mini-freezer, and holds product solid at sub-zero temperatures even in 90°F kitchen ambient. Rear-mounted self-contained refrigeration, R290 hydrocarbon refrigerant, an electronic temperature controller, and a fully welded stainless steel cabinet make this a back-of-house workhorse, not a converted dorm fridge.
This is point-of-use frozen storage. Instead of a line cook walking to the walk-in for backup proteins, par-baked dough, ice cream, or frozen garnish every ticket, those items live at the station. That single change saves minutes per ticket during a rush and keeps the line moving. Order today — most units ship within one business day from our warehouse with free freight to the lower 48.
Built for the Tight Spots Other Freezers Can't Reach
The AUF24SD is a workhorse for operators who need solid-frozen storage exactly where the work happens:
- Bar wells and back bars — frozen glassware, frosted mugs, frozen fruit purées, and ice cream for dessert cocktails
- Coffee shops and dessert bars — gelato, ice cream, frozen pastries, and cold-brew concentrate stored at the counter
- Food trucks and concession trailers — fits under standard prep counters where every inch of floor space matters
- Pizzerias — par-baked crusts, frozen meatballs, and pre-portioned protein at the make line
- Allergen-dedicated frozen storage — a separate freezer for gluten-free, vegan, or shellfish-free product to eliminate cross-contact
- Catering kitchens and prep rooms — pair with a stainless worktable to build a localized cold prep station
Refrigeration System
The 1/5 HP rear-mounted compressor uses R290 hydrocarbon refrigerant — the EPA-recognized natural alternative to legacy HFCs, with high heat-absorption capacity that pulls cabinet temperature back down faster after each door open. Translation for the operator: shorter compressor cycles, lower amp draw, and a unit that actually holds 0°F during the 7:00 PM rush instead of drifting up into soft-serve territory and ruining frozen product texture.
The electronic temperature controller mounts on the cabinet exterior and is factory-set to maintain -8°F to 0°F. Real-time interior temperature reads on the display, and adjustments take seconds — no dial-and-guess. Automatic condensate evaporation routes defrost water to a pan above the compressor where motor heat evaporates it off, so no floor drain is required and no drip tray needs emptying.
Stainless Construction Built to Last
Stainless steel interior and exterior resist the heat, humidity, acid spills, and commercial degreasers that destroy plastic-lined residential units. Foamed-in-place high-density polyurethane insulation locks in the cold and keeps the cabinet's thermal barrier intact in 90°F kitchen ambient conditions — critical for a freezer, where insulation failure shows up as ice crystals on product and runaway energy bills. The single self-closing solid hinged door has a stay-open feature for hands-free loading and a magnetic gasket that creates a tight, airtight seal on every close — and the door is field-reversible, so the same unit drops into a left- or right-hinge installation without ordering a different SKU.
One adjustable epoxy-coated interior shelf reconfigures for tall containers, half-pans, or sheet pans depending on the station's needs. Pre-installed 2" casters make the unit easy to roll out for cleaning the rear condenser coil — the single most important maintenance task on any commercial freezer.
Specifications
| Spec | Detail |
|---|---|
| Configuration | Reach-in undercounter freezer, one-section |
| Doors | (1) self-closing solid hinged door with stay-open feature, field-reversible |
| Capacity | 3.7 cu. ft. |
| Shelving | (1) adjustable epoxy-coated shelf |
| Exterior dimensions | 23-7/8" W x 26" D x 32-1/2" H |
| Casters | 2", pre-installed |
| Refrigeration | Rear-mounted, self-contained |
| Refrigerant | R290 hydrocarbon |
| Compressor | 1/5 HP |
| Temperature range | -8°F to 0°F |
| Temperature control | Electronic, exterior-mounted, digital display |
| Defrost | Automatic, with automatic condensate evaporation |
| Cabinet construction | Stainless steel interior and exterior, galvanized steel back |
| Insulation | High-density polyurethane, foamed in place |
| Door gasket | Magnetic, field-replaceable |
| Electrical | 115v / 60Hz / 1-phase, 2.4 amps |
| Plug | NEMA 5-15P (standard 3-prong) |
| Cord | Included |
| Warranty | 2-year parts and labor, 5-year compressor (extended warranty up to 5 years available) |
| Certifications | cETLus, ETL-Sanitation (NSF compliant) |
Installation and Clearance
The AUF24SD is rear-vented, so the compressor breathes from the back of the cabinet. Maintain at least 2" of clearance behind the unit and 1" on each side. Pushing the freezer flush against a wall traps compressor heat, drives up energy use, shortens compressor life, and voids the warranty. Plug into any standard 115v outlet on a dedicated 15-amp circuit — no special electrical work required. Place on a level surface; the casters provide both mobility and the airflow gap underneath the cabinet.
Why Operators Choose Atosa
Atosa builds commercial refrigeration that holds spec at a price point independent operators can actually afford. The AUF24SD competes head-to-head with units twice the price on the metrics that matter — recovery time, build quality, and component reliability — without the premium tied to a brand name. Browse the full Atosa refrigeration lineup for matching prep tables, two-door reach-ins, and worktops that share the same controller, gasket, and shelving systems.
Frequently Asked Questions
Does the AUF24SD need a floor drain?
No. Automatic condensate evaporation handles defrost water using residual compressor heat. No plumbing connection required.
What is the temperature range?
-8°F to 0°F, controlled by an exterior-mounted electronic thermostat. The unit holds product solid-frozen in standard commercial kitchen ambient conditions.
How much clearance does the AUF24SD need?
Minimum 2" at the rear and 1" on each side. The compressor is rear-mounted and rear-vented; restricted airflow causes overheating, voids warranty, and shortens compressor life.
Is the door reversible?
Yes. The AUF24SD ships with a field-reversible door, so the same unit can be installed with a left- or right-hand hinge depending on your bar or kitchen layout. Door reversal is performed in the field at install time.
What plug and outlet does it use?
NEMA 5-15P standard 3-prong plug, 115v / 60Hz / 1-phase, 2.4 amps. Plugs into any standard commercial outlet on a dedicated 15-amp circuit.
What refrigerant is used?
R290 hydrocarbon — the EPA-recognized natural refrigerant that has replaced legacy HFC refrigerants as the commercial standard for energy efficiency and environmental compliance.
How often should the condenser coil be cleaned?
At least monthly. Pull the unit out on its casters, vacuum the rear coil, and brush off any flour, dust, or grease. A clean condenser is the single highest-ROI maintenance task on the unit and the difference between a 3-year and a 12-year compressor lifespan.
Is the AUF24SD NSF certified?
Yes — cETLus listed for electrical safety and ETL-Sanitation listed (NSF compliant) for food contact. Passes commercial health inspection in all 50 states.
What is the difference between the AUF24SD and the AUR24SD?
Same cabinet, different mission. The AUF24SD is a freezer holding -8°F to 0°F with a 1/5 HP compressor; the AUR24SD is a refrigerator holding 35°F to 38°F with a smaller 1/7 HP compressor. They share footprint, door, casters, and controller styling so you can build a matched undercounter line of fridge-and-freezer pairs.
What warranty comes with the AUF24SD?
Two years parts and labor, five years on the compressor. Extended warranty coverage up to five years is available as an optional add-on.