Attribute Schema Library
Attribute schemafoodservice equipment & supply

Commercial Refrigerators Attributes & Specifications

Commercial refrigerators are self-contained, holding-temperature cabinets — reach-ins, undercounters, worktops, pass-throughs, roll-ins, chef bases — sold by foodservice equipment and supply distributors to restaurants, schools, hospitals and c-stores. Three people read the spec: the chef who wants capacity, the rep quoting it in AutoQuotes, and the installer who needs the plug and the clearance.

One cabinet becomes dozens of SKUs. Hinge hand, solid vs. glass vs. Dutch half doors, shelves vs. pan slides, casters vs. legs, top- or bottom-mount condenser, and voltage all ride in model-number suffixes no generic parser decodes. Widths arrive as fractional inches — 52 1/10", 54 1/8", 83 3/8" — which never sort or range-filter.

Then the standards moved. SNAP Rule 26 raised the R-290 charge limit for closed self-contained equipment to 300 g and swapped the referenced safety standard from UL 471 to UL/CSA 60335-2-89. Copy written before that is wrong, and the fields that settle it — charge in grams, listing standard, condenser clearance — live in the install manual, not the spec table.

Core

Every SKU needs these. Without them the record is not a product, it is a row.

Manufacturer Part Number
identifier
TS-49-HC

The number the chain quotes, the rep looks up in AutoQuotes, and the rebate program matches against. Suffixes are load-bearing, not noise.

Equipment Configuration
enum
Reach-In (vertical)

Separates reach-in from undercounter, worktop, pass-through, roll-in and chef base. Wrong value puts an 83" cabinet in an undercounter result set.

Number of Doors
number
2

Access count, not section count. A 2-section cabinet ships with 2 full doors or 4 Dutch half doors — different SKU, different workflow.

Door Type
enum
Solid

Solid vs. glass drives energy class, price and use case. Glass merchandises; solid holds temp cheaper. Top three of every rail in the category.

Refrigerated Capacity
number · cu. ft.
44.6

The primary sizing filter. Rails bucket it 8-24, 25-40, 42-63, 64-80 cu. ft., so a text value drops the SKU out of every bucket.

Exterior Dimensions (W x D x H)
text · in
54 1/8 x 29 1/2 x 83 3/8

Decides whether it fits the alcove and clears the doorway. Depth excludes the handle and the door swing — publish those separately.

Voltage / Phase / Frequency
enum · V / Ph / Hz
115 V / 1 Ph / 60 Hz

115 V single-phase covers most reach-ins; roll-ins and low-temp units go to 208-230 V. Mismatch means the unit cannot be energized on arrival.

NEMA Plug Configuration
identifier
NEMA 5-15P

The install blocker. 5-15P drops into any receptacle; 5-20P needs a 20 A circuit; 6-30P needs an electrician before delivery day.

Differentiating

What buyers actually compare on. This is where catalogs win or lose the filter.

Operating Temperature Range
range · °F
33 to 38

Holding refrigerators run 33-38°F. Anything wider signals a merchandiser or beverage cooler, which health inspectors treat differently.

Refrigerant Type
enum
R-290

R-290 vs. R-134a vs. R-513A drives GWP, service parts, and whether flammable-refrigerant rules apply. Buyers filter on it directly.

Compressor Location
enum
Bottom Mounted

Bottom-mount keeps the condenser out of hot-line heat and eases coil cleaning; top-mount frees floor space and stays out of the mop water.

Hinge Location / Reversibility
enum
Left / Right, field-reversible

Left, right, or left/right on a 2-door. Field-reversible or factory-set decides whether a wrong hand is a return or a 20-minute fix.

Cabinet Construction
enum
Stainless Steel and Aluminum

All stainless, painted steel, or stainless exterior with aluminum interior. Drives price, corrosion life, and whether it passes a spec-line job.

Compressor Horsepower
number · hp
1/2

Proxy for pull-down recovery on a busy line. Chefs opening doors 200 times a shift compare 1/3 hp against 1/2 hp.

Compliance & identifiers

Standards, regulatory data, and the identifiers channels reject you for missing.

NSF/ANSI 7 Certification
enum
NSF/ANSI 7 certified

The sanitation standard health departments look for: food-zone materials, cleanability, and ability to hold food at temperature.

Safety Listing Standard
enum
cULus, UL/CSA 60335-2-89

UL 471 or UL/CSA 60335-2-89 under the cULus mark. SNAP Rule 26 moved flammable-refrigerant equipment to 60335-2-89, 2nd Ed.

ENERGY STAR Qualified
boolean
Yes (v5.0)

Gates utility rebates and many institutional and government bid specs. Rebate programs match the exact model number on the ENERGY STAR list.

Country of Origin
enum
United States

Drives tariff treatment, Buy American / BAA bid eligibility, and the 'Made in America' facet real rails already expose.

The fields that aren't in the schema at all

What most commercial refrigerators catalogs are missing.

The table above is the schema most catalogs already have. These are the attributes that usually aren't in it — each one surfaced by a signal from the live market rather than by an audit of what's already there. This is what Anglera's Schema Foundry does on a real catalog, in this category.

Supplier signal
+ Shelf Load Rating (lb per shelf)

Traulsen publishes 225 lb per shelf on its G-Series sheets. Most distributor records carry shelf count and shelf material but no load rating, so 'will it hold full sheet pans?' is unanswerable.

Chefs sizing for cased product call the rep instead of adding to cart. Overloaded shelves sag and come back as warranty claims that were never the unit's fault.

Review signal
+ Overall Depth, Door Open

Cabinet depth is published everywhere; depth with the door swung to 90 or 120 degrees is published nowhere. Buyers in galley kitchens ask in product Q&A and get pointed at the install manual.

Unit arrives, door hits the opposite work table, whole cabinet goes back. Freight both ways on a 440 lb crate, and the job gets re-spec'd.

Competitor signal
+ Refrigerant Charge (g)

SNAP Rule 26 caps R-290 at 300 g for closed self-contained equipment. Catalogs list 'Refrigerant Type: R-290' with no charge, so nothing on the page proves the unit is inside the limit.

Inspector or EHS reviewer asks for the charge and the rep opens a manufacturer PDF. RFQs on flammable-refrigerant equipment stall on a number that should be a field.

Supplier signal
+ Minimum Condenser Air Clearance

Top-mount and bottom-mount units need different clearance at sides, top and rear. That number lives in the installation manual, never on the spec table and never on the filter rail.

Unit gets boxed into a corner, runs warm, returns as a service call. Manufacturers deny warranty on units installed without the required clearance.

Search signal
+ Warranty Term (parts/labor + compressor)

Three years parts and labor plus five on the compressor is the category norm, but it arrives as prose in a PDF rather than a comparable field. Buyers ask for it on every quote.

Two units look identical at the same price; the one showing warranty on the page wins the RFQ. No field means no comparison, no filter, no differentiation.

How Schema Foundry finds these

Messy in, governed out.

The same value, spelled every way foodservice equipment & supply suppliers spell it. A filter only works once they agree.

Refrigerant Type
R290R-290AR290aPropane (R-290)CARE 40R 290
R-290

Live rails list R-290 and R-290A as separate facets. Same refrigerant, split filter — a buyer picking one silently misses the other.

Exterior Width
54 1/8"54-1/8 in54.125 in52 1/10"1375 mm54.13
54.125 in

Traulsen publishes 52 1/10" widths. Fractional-inch strings never sort or range-filter. Store the decimal, render the fraction.

Door Type
Solid DoorSolid DoorsS/DOpaqueNon-GlassSolid Front
Solid

DOE and ENERGY STAR say 'transparent'; the trade says 'glass'. Map both to one value or your glass-door filter under-returns.

Compressor Location
Top MountTop-MountTop MtdTMSelf-Contained TopTop-mounted
Top Mounted

A real facet on every rail in this category. Six spellings across suppliers means six buckets and one broken filter.

What buyers ask

Every one of these should be answerable from the attributes above. If it isn't, that's a gap.

  • Will a 54-inch two-section fit through my 36-inch doorway and still open in the line?
  • Is this R-290 unit under the 300-gram charge limit so my inspector signs off?
  • Does it plug into a standard 115V 5-15 receptacle or do I need a dedicated 20-amp circuit?
  • Is it ENERGY STAR listed — can I claim the utility rebate on this exact model number?
  • Can I reverse the hinge in the field, or do I have to order the left-hand SKU?
  • Top mount or bottom mount if it's sitting next to the hot line?
  • How much weight will each shelf hold with full sheet pans on it?
  • Is it NSF 7 certified, and what's the warranty on the compressor?

What channels require

The same SKU, different mandatory fields per destination.

AutoQuotes (AQ / Revalize)
Manufacturer Part NumberList priceSpec sheet PDFWarranty termCAD / Revit fileVoltage, amps, plug type
Distributor's own filter rail
Sections and door countDoor typeRefrigerated capacity (cu. ft.)Compressor locationHinge locationRefrigerant type
Amazon Business
GTIN / UPCBrand + MPNItem dimensions and weightCountry of originCapacitySafety certification
ENERGY STAR / utility rebate programs
ENERGY STAR qualified model numberDOE equipment classDaily energy consumption (kWh/day)Refrigerated volume (cu. ft.)

Commercial Refrigerators data, in practice

What changed with R-290 charge limits, and is my catalog copy stale?

EPA's SNAP Rule 26, effective July 14, 2024, raised the R-290 charge limit for self-contained closed appliances (units with doors) from 150 g to 300 g, and to 500 g for open cases such as merchandisers. It also swapped the incorporated safety standard from UL 471 to UL/CSA 60335-2-89, 2nd Edition. Any copy still citing 150 g or UL 471 for new flammable-refrigerant equipment is behind. Carry Refrigerant Type, Refrigerant Charge (g), and Safety Listing Standard as three separate governed fields — buyers, AHJs and EHS reviewers ask for all three, and typically only the first is present.

NSF/ANSI 7, UL, ENERGY STAR — which does a reach-in actually need?

They answer different questions and none substitutes for another. NSF/ANSI 7 is the sanitation and food-equipment standard: food-zone materials, cleanability, and the unit's ability to hold food at temperature. Health departments look for it. UL 471 or UL/CSA 60335-2-89 is the electrical and mechanical safety listing, carried under the cULus mark. ENERGY STAR is energy performance — the unit tests under 10 CFR 431 Subpart C, Appendix B and must beat the maximum daily energy consumption for its class. ENERGY STAR itself requires NSF 7 certification and a UL listing as prerequisites, so the three stack rather than compete.

Why does one cabinet turn into thirty SKUs?

Because hinge hand, door type, shelving, base, condenser location and voltage are all orderable options encoded into the model number. True's TS-49-HC, Traulsen's G20010 and Beverage-Air's PR2HC-1AS all describe a two-section solid-door reach-in, and each manufacturer encodes the options its own way — -HC signals a hydrocarbon refrigerant across several lines, -G a glass door on others, but the scheme is per-vendor and not self-describing. If the PIM stores the suffix inside a text model number and nothing else, every option is invisible to the filter rail. Explode the suffix into governed attributes and thirty near-duplicate search results become thirty filterable SKUs.

What does the DOE equipment class code tell me?

10 CFR 431 Subpart C classifies self-contained holding-temperature equipment by orientation, door type and temperature: VCS (vertical closed solid), VCT (vertical closed transparent), HCS and HCT (horizontal equivalents), and SOC (service over counter), each at medium (38°F) or low (0°F) temperature. The class sets the maximum daily energy consumption formula the unit must meet, and ENERGY STAR uses the same classes with tighter limits — a 25 cu. ft. solid-door unit is held to a lower kWh/day than the same volume with a transparent door. Carrying the class and the tested kWh/day lets you build an energy filter without opening a PDF.

More foodservice equipment & supply schemas

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