Bitzer 22DES-4Y
German-engineered semi-hermetic reciprocating and screw compressors for industrial refrigeration.
Specifications
- Compression technology: Reciprocating
- Configuration: Tandem
- Enclosure / drive: Semi-Hermetic
- Cylinders: 2
- Variable speed: Not Stated
- Hazardous-area certification: Not Stated
- 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 | — | — | 7.79 | 9.71 |
| R1234ze(E) | — | — | 5.67 | 7.3 |
| R134a | — | — | 7.96 | 10.12 |
| R404A | — | 3.82 | 13.6 | 16.6 |
| R407A | — | 2.79 | 12.43 | 15.62 |
| R407C | — | — | 12.17 | 15.24 |
| R407F | — | 3.03 | 13.32 | 16.69 |
| R448A | — | 3.09 | 13.04 | 16.29 |
| R449A | — | 3.1 | 12.98 | 16.21 |
| R450A | — | — | 6.91 | 8.8 |
| R454C | — | 2.75 | 11.27 | 14.04 |
| R455A | — | 2.97 | 12.13 | 15.11 |
| R507A | — | 4.03 | 13.95 | 16.99 |
| R513A | — | — | 8.44 | 10.6 |
| R515B | — | — | 5.63 | 7.25 |
Related Bitzer models
Frequently asked questions
What refrigerants does the Bitzer 22DES-4Y support?
The Bitzer 22DES-4Y is qualified for R1234yf, R1234ze(E), R134a, R404A, R407A, R407C, R407F, R448A, R449A, R450A, R454C, R455A, R507A, R513A, R515B. 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 22DES-4Y?
Running on R507A, the Bitzer 22DES-4Y delivers 4.03 kW at LT, 13.95 kW at MT, 16.99 kW at HT. Use the Benchmark tool to evaluate capacity at your exact SST/SDT and superheat conditions.
Can the Bitzer 22DES-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 22DES-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.