Bitzer 2CES-4Y
German-engineered semi-hermetic reciprocating and screw compressors for industrial refrigeration.


Specifications
- Compression technology: Reciprocating
- Configuration: Single
- Enclosure / drive: Semi-Hermetic
- Cylinders: 2
- 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 | — | — | 4.98 | 6.19 |
| R134a | — | — | 4.95 | 6.27 |
| R404A | — | 2.49 | 8.42 | 10.23 |
| R407A | — | 1.87 | 7.7 | 9.63 |
| R407C | — | — | 7.49 | 9.34 |
| R407F | — | 2.01 | 8.24 | 10.28 |
| R448A | — | 2.04 | 8.06 | 10.03 |
| R449A | — | 2.04 | 8.02 | 9.98 |
| R450A | — | — | 4.3 | 5.45 |
| R454C | — | 1.86 | 7.18 | 8.91 |
| R455A | — | 2.01 | 7.73 | 9.59 |
| R507A | — | 2.62 | 8.64 | 10.47 |
| R513A | — | — | 5.24 | 6.55 |
Related Bitzer models
Frequently asked questions
What refrigerants does the Bitzer 2CES-4Y support?
The Bitzer 2CES-4Y 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 2CES-4Y?
Running on R507A, the Bitzer 2CES-4Y delivers 2.62 kW at LT, 8.64 kW at MT, 10.47 kW at HT. Use the Benchmark tool to evaluate capacity at your exact SST/SDT and superheat conditions.
Can the Bitzer 2CES-4Y 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 2CES-4Y performance data based on?
Capacity, power, and current polynomials follow EN 12900 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.