Bitzer 4PESP-12Z
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 |
|---|---|---|---|---|
| R1270 | — | 8.16 | 27.19 | 32.88 |
| R290 | — | 5.09 | 20.19 | 24.95 |
Related Bitzer models
Frequently asked questions
What refrigerants does the Bitzer 4PESP-12Z support?
The Bitzer 4PESP-12Z is qualified for R1270, R290. 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 4PESP-12Z?
Running on R1270, the Bitzer 4PESP-12Z delivers 8.16 kW at LT, 27.19 kW at MT, 32.88 kW at HT. Use the Benchmark tool to evaluate capacity at your exact SST/SDT and superheat conditions.
Can the Bitzer 4PESP-12Z 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 4PESP-12Z 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.