Bitzer Reciprocating Compressor Features
1. High Efficiency & Performance
Optimized piston design for energy-saving operation (meets EU ErP Directive standards).
High COP (Coefficient of Performance) for reduced power consumption.
Bitzer reciprocating compressor suitable for medium to low-temperature applications (down to -40°C / -40°F).
2. Robust & Durable Construction
Heavy-duty cast iron crankcase for long service life.
Precision-machined pistons, cylinders, and valves for reliable compression.
Forged steel crankshaft with anti-friction bearings for smooth operation.
3. Wide Refrigerant Compatibility
Works with HFCs (R404A, R507, R134a), natural refrigerants (NH₃, CO₂), and HFOs (R1234ze, R513A).
Special versions available for ammonia (NH₃) and CO₂ (R744) applications.
4. Flexible Configuration Options
Open, semi-hermetic, and hermetic designs (e.g., 2D, 4D, 6D series).
Single-stage and two-stage models for different pressure requirements.
Capacity control options (cylinder unloading, frequency inverter drive).
5. Advanced Motor & Protection Systems
Bitzer reciprocating compressor with high-efficiency IE3 motors (optional IE4 for ultra-low energy consumption).
Built-in thermal overload protection, oil pressure monitoring, and vibration dampers.
Low starting current for reduced electrical stress.
Configuration of condensing unit:
Compressor, condenser, axial fan with external rotor, liquid receiver, HP/LP controller, HP/LP gauge, dry filter, solenoid valve, sight glass, check valve, junction box, etc.
The following are the detailed parameters of the original Bitzer compressor 4FES-5Y
| Technical Data | |||||||||
| Displacement (1450 RPM 50Hz) | 18,05 m3/h | ||||||||
| Displacement (1750 RPM 60Hz) | 21,78 m3/h | ||||||||
| No. of cylinder x bore x stroke | 4 x 41 mm x 39,3 mm | ||||||||
| Weight | 95 kg | ||||||||
| Max. pressure (LP/HP) | 19 / 32bar | ||||||||
| Connection suction line | 22 mm - 7/8'' | ||||||||
| Connection discharge line | 16 mm - 5/8'' | ||||||||
| Motor data | |||||||||
| Motor version | 1 | ||||||||
| Motor voltage (more on request) | 380-420V Y-3-50Hz | ||||||||
| Max operating current | 10.8 A | ||||||||
| Starting current (Rotor locked) | 62.2 A | ||||||||
| Max. Power input | 5,8 kW | ||||||||
| Extent of delivery (Standard) | |||||||||
| Motor protection | SE-B3(Standard), SE-B2(Option) | ||||||||
| Enclosure class | IP66 | ||||||||
| Vibration dampers | Standard | ||||||||
| Oil charge | 2,00 dm³ | ||||||||
| Discharge shut-off valve | Standard | ||||||||
| Suction shut-off valve | Standard | ||||||||
| Available Options | |||||||||
| Discharge gas temperature sensor | Option | ||||||||
| Capacity control | 100-50% (Option) | ||||||||
| Capacity Control - infinite | 100-10% (Option) | ||||||||
| Additional fan | Option | ||||||||
| Crankcase heater | 0..120 W PTC (Option) | ||||||||
| Oil level monitoring | OLC-K1 (Option) | ||||||||
| Sound measurement | |||||||||
| Sound power level (+5°C / 50°C) | 65,7 dB(A) @ 50Hz | ||||||||
| Sound power level (-10°C / 45°C) | 68,6 dB(A) @ 50Hz | ||||||||
| Sound power level (-35°C / 40°C) | 70,5 dB(A) @ 50Hz | ||||||||
| Sound pressure level @ 1m (+5°C / 50°C) | 57,7 dB(A) @ 50Hz | ||||||||
| Sound pressure level @ 1m (-10°C / 45°C) | 60,6 dB(A) @ 50Hz | ||||||||
| Sound pressure level @ 1m (-35°C / 40°C) | 62,5 dB(A) @ 50Hz |
