Field Tools
Model Cross-Reference
Quick cross-reference for refrigerant retrofit paths, lubricants, compressor families and controller platforms.
Starter dataset — broadly-accurate field references. Always confirm exact drop-in equivalence, displacement and charge against the manufacturer's current data sheet. Send us your equipment list and we'll expand this table.
| Category | From / Item | To / Equivalent | Oil | Notes |
|---|---|---|---|---|
| Refrigerant Retrofit | R-404A | R-448A / R-449A | POE | Lower-GWP A1 drop-in for MT/LT commercial refrigeration. ~10°F glide — use dew/bubble. No oil change from R-404A POE. |
| Refrigerant Retrofit | R-404A | R-407A / R-407F | POE | A1 R-404A alternative, higher discharge temp than R-404A — watch compressor discharge. |
| Refrigerant Retrofit | R-22 | R-407C | POE | Common R-22 A/C & MT retrofit. Charge by weight (zeotropic glide). |
| Refrigerant Retrofit | R-22 | R-448A / R-449A | POE | MT commercial refrigeration R-22 retrofit path; verify compressor envelope. |
| Refrigerant Retrofit | R-134a | R-513A | POE | A1 near-azeotropic, low-glide R-134a alternative for MT / chillers. |
| Refrigerant Retrofit | R-404A / R-22 | R-290 | POE / MO | Natural (propane) for self-contained cases only. FLAMMABLE A3 — charge limits apply. |
| Refrigerant Retrofit | HFC systems | R-744 (CO₂) | POE | Transcritical/booster new-build. Very high pressure — CO₂-rated components required. |
| Lubricant | R-404A / R-448A / R-449A | POE (ISO 32 typical) | POE | Hygroscopic — minimize open time, replace filter-drier, evacuate to 500 microns. |
| Lubricant | R-22 (legacy) | Mineral oil / AB | MO / AB | Original R-22 systems. Retrofit to HFC blends requires POE change-out. |
| Lubricant | R-290 (propane) | POE or mineral oil | POE / MO | Per compressor manufacturer; small self-contained charges. |
| Lubricant | R-744 (CO₂) | POE (CO₂-specified) | POE | Use the CO₂-rated POE grade the compressor OEM specifies. |
| Compressor Family | Copeland Scroll ZB / ZF / ZS | MT & LT refrigeration scroll | POE | ZB = MT, ZF = LT, ZS = medium. Common on smaller racks/condensing units. Confirm exact model + voltage. |
| Compressor Family | Copeland Discus (semi-hermetic) | Parallel rack recip | POE | Discus valve-plate semi-hermetics widely used on supermarket racks. Match displacement + refrigerant. |
| Compressor Family | Bitzer Ecoline (recip) | MT/LT semi-hermetic recip | POE | Wide-range Ecoline recips; CO₂ variants for transcritical. Verify series + oil charge. |
| Compressor Family | Bitzer / Dorin CO₂ | Transcritical & subcritical CO₂ | POE | Dedicated CO₂ compressors for booster racks. Do NOT substitute a standard HFC compressor. |
| Controller Platform | Danfoss AK-PC / AK-SC | Rack / pack + system manager | — | AK-PC pack controller, AK-SC system manager. See Rack Reference for alarm codes. |
| Controller Platform | Emerson E2 / E3 | Supermarket site controller | — | E3 is the current platform (E2 legacy). Handles rack, case and HVAC. |
| Controller Platform | Carel pRack / boss | Rack controller + supervisor | — | pRack for compressor racks, boss supervisor. |