Refrigeration condensing unit product attributes

Commercial refrigeration condensing units are usually listed by horsepower, but horsepower does not size a walk-in cooler or freezer. What matters is net capacity at a saturated suction temperature and ambient that match the application, and different manufacturers publish capacity at different rating points. Without those conditions attached, two units that look equivalent on a line card can differ widely in the box.

The refrigerant field has become harder to manage. Many units are approved for several blends with different capacities for each, older R-404A equipment is being replaced with lower-GWP options, and A2L refrigerants bring their own installation requirements. A record needs the approved refrigerant list and the safety classification as separate values, both traced to current manufacturer literature.

Electrical and connection data decide whether the install goes smoothly. Minimum circuit ampacity and maximum overcurrent protection drive wire and breaker sizing, suction and liquid connection sizes decide whether the existing piping mates, and the maximum ambient rating tells a contractor whether a rooftop location in a hot climate is realistic.

The condensing units attribute template

18 candidate fields in 5 groups, ordered the way a record gets built: identify the item, capture its specifications, then record fit and the evidence behind any claim. 9 are marked Core: without them the item cannot be identified or filtered. Example values show the expected format only; they do not describe a real SKU.

Identity

Which exact item, variant and pack this record describes.

Check before use: Preserve leading zeros and punctuation, validate against the manufacturer record, and check the GTIN check digit and packaging level before linking.

Attribute	Type	Priority	Example format
Manufacturer Part Number (MPN) manufacturer_part_number_mpn	Identifier	Core	CU-075M-3C
GTIN / UPC gtin_upc	Identifier	Core	012345075308

Technical specifications

Measured or rated values that must travel with their unit and test conditions.

Check before use: Store the number and unit separately. Convert only when the source unit and test conditions are known.

Attribute	Type	Priority	Example format
Nominal Horsepower nominal_horsepower	Number · HP	Core	7.5
Voltage / Phase / Frequency voltage_phase_frequency	Controlled list	Core	208-230 V / 3 Ph / 60 Hz
Net Capacity at Rating Point net_capacity_at_rating_point	Number · Btu/h	Buyer decision	68,000 Btu/h at 20 °F SST, 95 °F ambient
Minimum Circuit Ampacity (MCA) minimum_circuit_ampacity_mca	Number · A	Buyer decision	34
Maximum Overcurrent Protection (MOP) maximum_overcurrent_protection_mop	Number · A	Buyer decision	50
Maximum Ambient Operating Temperature maximum_ambient_operating_temperature	Number · °F	Buyer decision	120
AWEF (Annual Walk-in Energy Factor) awef_annual_walk_in_energy_factor	Number · Btu/W·h	Channel / evidence	7.6

Selection attributes

The type, material and option choices buyers filter and compare on.

Check before use: Map supplier wording to a governed vocabulary only after checking the source text and which variant it applies to.

Attribute	Type	Priority	Example format
Refrigerant refrigerant	Controlled list	Core	R-448A / R-449A
Application Temperature Range application_temperature_range	Controlled list	Core	Medium temp (cooler)
Compressor Type compressor_type	Controlled list	Core	Semi-hermetic reciprocating
Condenser Cooling Method condenser_cooling_method	Controlled list	Core	Air-cooled
Installation Location installation_location	Controlled list	Core	Outdoor

Fit & compatibility

What the item mounts to, mates with, replaces or works alongside.

Check before use: Keep model and series qualifiers. A similar-looking part is not a verified fit until a source says so.

Attribute	Type	Priority	Example format
Suction Line Connection suction_line_connection	Controlled list · in	Buyer decision	1-1/8 in ODF
Liquid Line Connection liquid_line_connection	Controlled list · in	Buyer decision	5/8 in ODF

Evidence & compliance

Listings, standards, classifications and origin claims that need a document behind them.

Check before use: Link the manufacturer document or label with its edition or date. Never copy a certification from a neighboring SKU.

Attribute	Type	Priority	Example format
Refrigerant Safety Group refrigerant_safety_group	Controlled list	Channel / evidence	A1
Country of Origin country_of_origin	Controlled list	Channel / evidence	United States

Normalize supplier values

The same value arrives in many spellings. Map each raw string to one governed value, and keep the raw text beside it so a reviewer can see what the supplier actually wrote.

Often missing from supplier files

These fields are commonly absent from price lists and basic feeds, even though the information usually exists in a datasheet, label or installation manual. Treat an empty value as a request for evidence, not as permission to fill it from a similar model.

• Application temperature range as a governed value
• AWEF (Annual Walk-in Energy Factor)
• Refrigerant safety group (A1 / A2L)
• Maximum ambient operating temperature
• Capacity rating conditions (SST and ambient)

Questions the record must answer

Buyers and counter-sales reps choosing condensing units ask questions like these. Each one needs a specific field, sourced for the exact variant.

• Will this unit hold a walk-in cooler at 35 °F when it sits on a roof that hits 110 °F?
• Is it approved for R-448A, or only for R-404A?
• What breaker and wire size does it need on 208 V three-phase?
• Will the suction and liquid connections match the lines already run to the box?

From supplier file to record

1. Resolve identity first. Link the supplier SKU, manufacturer part number and packaging identifiers without merging distinct variants or pack sizes.
2. Extract with the source attached. Pull values from rows, tables and datasheets, keeping the raw text, unit and page or row reference.
3. Map to your classification. Assign the ETIM, ECLASS, UNSPSC or internal class your company licenses, and keep the supplier's original terms.
4. Review, sync and watch. Hold conflicts and safety-related values for a category expert, write approved values to ERP or PIM, and recheck when the supplier sends a new file.

For the full method, see how to build a category attribute template and the category catalog gap audit.

FAQ