Bitzer 4HE-25Y
German-engineered semi-hermetic reciprocating and screw compressors for industrial refrigeration.
Specifications
- Compression technology: Reciprocating
- Configuration: Single
- Enclosure / drive: Semi-Hermetic
- Cylinders: 4
- Variable speed: Fixed-Speed
- Hazardous-area certification: No
- Product category: compressor
Qualified refrigerants & capacity
Capacity (kW) evaluated at standard conditions: ULT (-60/45 °C), LT (-35/45 °C), MT (-10/45 °C), HT (-5/45 °C).
| Refrigerant | ULT | LT | MT | HT |
|---|---|---|---|---|
| R1234yf | — | — | 0.02 | 0.03 |
| R134a | — | — | 0.02 | 0.03 |
| R404A | — | 0.01 | 0.04 | 0.05 |
| R407A | — | 0.01 | 0.03 | 0.04 |
| R407C | — | — | 0.03 | 0.04 |
| R407F | — | 0.01 | 0.04 | 0.05 |
| R448A | — | 0.01 | 0.04 | 0.05 |
| R449A | — | 0.01 | 0.04 | 0.05 |
| R450A | — | — | 0.02 | 0.02 |
| R454C | — | 0.01 | 0.03 | 0.04 |
| R455A | — | 0.01 | 0.03 | 0.04 |
| R507A | — | 0.01 | 0.04 | 0.05 |
| R513A | — | — | 0.02 | 0.03 |
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Frequently asked questions
What refrigerants does the Bitzer 4HE-25Y support?
The Bitzer 4HE-25Y is qualified for R1234yf, R134a, R404A, R407A, R407C, R407F, R448A, R449A, R450A, R454C, R455A, R507A, R513A. Capacity values at standard ULT (-60/45 °C), LT (-35/45 °C), MT (-10/45 °C) and HT (-5/45 °C) conditions are listed in the table above for each refrigerant.
What is the cooling capacity of the Bitzer 4HE-25Y?
Running on R404A, the Bitzer 4HE-25Y delivers 0.01 kW at LT, 0.04 kW at MT, 0.05 kW at HT. Use the Benchmark tool to evaluate capacity at your exact SST/SDT and superheat conditions.
Can the Bitzer 4HE-25Y be retrofit to a lower-GWP refrigerant under EU F-Gas Regulation 2024/573?
Open the F-Gas Retrofit tool with this model pre-selected to see drop-in alternatives ranked by capacity match, COP, GWP, PFAS impact, and 2026/2030/2035 phase-out timeline.
What polynomial standard is the Bitzer 4HE-25Y performance data based on?
Capacity, power, and current polynomials follow EN 12900 (10-coefficient bivariate in SST/SDT) for European-origin brands and AHRI 540 for North American brands. Coefficients are normalized into a common form for cross-brand comparison. Fit your own data in the Polynomial Fitter tool.
Find equivalents · F-Gas retrofit path · Open in Benchmark · All Bitzer models