Bitzer S4N-8.2Y Two-Stage Semi-Hermetic Compressor

🔧 Technical Data Summary

• Displacement (50Hz @ 1450rpm): 28.00 / 17.90 m³/h

• Displacement (60Hz @ 1750rpm): 33.79 / 21.60 m³/h

• Cylinders × Bore (LP/HP) × Stroke: 4 × 60/48 mm × 57 mm

• Weight: 141 kg

• Max Pressure (LP / MP / HP): 19 / 19 / 28 bar

• Suction Line: 28 mm – 1 1/8”

• Discharge Line: 22 mm – 7/8”

• Max Operating Current: 17.0 A

• Starting Current (Rotor Locked): 49.0 A (Y) / 81.0 A (YY)

• Max Power Input: 9.7 kW

• Cooling Capacity (R404A, t₀ = -35°C, t𝑐 = 40°C): 8.65 kW

• Power Input: 6.22 kW

• COP (Efficiency): 1.39

• Condenser Capacity: 14.87 kW

• Oil Charge: 3.00 L

🛢️ Oil Compatibility

• R404A / R507A / R448A / R449A / R454C → BSE32 (Standard)

• R22 → B5.2 (Option)

✅ Why Choose the Bitzer S4N-8.2Y?

• Powerful cooling for -35°C evaporating temperature

• Designed for low-temp applications requiring stable output

• Enhanced two-stage design with higher efficiency and capacity

• Built-in motor protection, oil sight glass, TX valve, and drier

• Proven Bitzer reliability with German manufacturing standards

📦 Standard Features

• SE-B2 motor protection

• Enclosure Class IP54 (IP66 optional)

• TX valve for liquid injection

• Sight glass, filter drier, solenoid valve

• Vibration dampers

• Optional: Oil heater, discharge temp sensor, oil pressure monitor, subcooler

🚚 Shipping & Availability

• ✅ Standard 380–420V / 50Hz models in stock

• ⚙️ Custom builds (e.g. 60Hz or special voltages) available in 3–4 weeks

• 📦 Export-grade packaging ensures safe international delivery

• 🌐 Worldwide freight: sea, air, or express courier options

📥 Request Full Datasheet

Includes installation drawings, performance graphs, and advanced technical specs.

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