Highlights

• Industry-leading energy efficiency in full and part load operation
• Easy parallel compounding for increased system capacity
• Suction gas cooled built-in motor for high robustness and wide application range

Product versions

• HSK (motor 1): MT and A/C applications
• HSN: LT and MT applications
• HSKB: LT stage in booster systems

Mechanical capacity regulation

• Easy control via flanged solenoid valves
• HS.53 to HS.74: Multistage capacity control (control pistons)
• HS.85: Dual capacity control (single slider) for stepwise or alternatively stepless capacity control and Vᵢ compensation
• Suitable for VSD operation
  • Frequency range 20 ... 75 Hz

Reduced life cycle costs

• Very low operating costs due to outstanding high energy efficiency
• Long lifetime due to high robustness and low-vibration design
• Low maintenance costs due to service-friendly design
• BITZER Global Service network for quick spare part availability all over the world

Reduced development costs

• Extensive documentation and BITZER know-how for technical support
• Wide range of matching accessories
  • Easy calculation and selection via BITZER SOFTWARE

Flexibility and reliability

• Wide application range enables flexible use
  • In a wide range of system configurations
  • Mechanical capacity control or variable-speed drive
• Wide range of refrigerants
  • Applicable under different international refrigerant regulations
  • Perfect match of refrigerant and compressor
• Easy parallel operation of compressors due to internal discharge check valve
• All compressors are 100% factory-tested