BITZER CSH 6563-40Y-40D COMPACT SCREW COMRESSOR SN NO.1092301589 CSH73 SERIES

Complete Product Description: BITZER CSH 6563-40Y-40D Compact Screw Compressor

1. Core Product Identification:

• Model: CSH 6563-40Y-40D

• Type: Compact Screw compressor, High stage (for 2-stage or cascade systems). This is part of the “High” series in the CSH line, designed for low-temperature applications.

• Series: CSH73

• Serial Number: 1092301589 (Unique identifier for manufacturing date, warranty, and service)

• Manufacturer: BITZER (World-leading manufacturer of refrigeration and air conditioning compressors).

2. Key Technical Specifications (Decoded from Model Number):
The model number CSH 6563-40Y-40D breaks down as follows:

• CSH: Compact Screw compressor, High stage.

• 65: Nominal shaft power of the motor. This unit has a 65 kW (approx. 87 HP) motor.

• 63: The compressor size designation, relating to its displacement. For this model, the theoretical displacement is approximately 63 m³/h (or 37.1 cfm) at 2900 RPM.

• 40Y: Electrical Terminal Box.

  • 40 indicates the terminal box configuration.

  • Y signifies a Star (Wye) connection for the motor’s main windings. This is crucial for the starting method and voltage configuration.

• 40D: Electrical Design / Voltage & Frequency.

  • 40 is a code for a specific electrical design.

  • D typically indicates a 3-phase, 400V, 50Hz power supply (common in Europe and many international markets). *Note: Always verify the nameplate for exact voltage/frequency ratings (e.g., 380-420V/50Hz, 460V/60Hz variants exist).*

3. Design & Construction:

• Compact Screw Design: Integrates the screw compressor block, oil separator, oil reservoir, and necessary controls into a single, pre-assembled unit. This saves space and simplifies installation compared to open drive systems.

• High-Stage Compressor: Specifically engineered for use in the high-temperature stage of:

  • Two-Stage Refrigeration Systems: For very low evaporation temperatures (e.g., industrial freezing, cold storage).

  • Cascade Refrigeration Systems: For ultra-low temperatures (e.g., below -50°C / -58°F, used in freeze-drying, laboratory testing).

• Oil Management System: Includes a built-in oil separator, oil filter, and oil cooling system (typically thermostatic oil cooling valve) to ensure reliable lubrication and compressor longevity.

• Motor: Hermetically sealed (or semi-hermetic), driven by an efficient three-phase induction motor matched to the compressor.

• Control & Protection: Equipped with integrated sensors and protective devices (e.g., thermistors for motor protection, differential pressure switches for oil filter monitoring, high-pressure switch). It is designed to interface with external system controllers.

4. Typical Applications:
This compressor is built for heavy-duty, low-temperature commercial and industrial refrigeration, including:

• Low-Temperature Cold Storage (Freezers)

• Industrial Freezing Tunnels & Spiral Freezers

• Blast Freezers

• Freeze Drying (Lyophilization) Plants

• Cascade Systems for Chemical & Process Cooling

• Ice Cream Hardening

5. Refrigerants:
The CSH73 series is typically designed for use with common HFC and HFO refrigerants such as R-404A, R-407A/F, R-507A, and R-134a. Newer models are also compatible with lower-GWP alternatives like R-454C, R-513A, or R-1234ze. The exact approved refrigerants are listed on the unit’s nameplate.

6. Service Note:
The Serial Number (1092301589) is critical for ordering genuine BITZER spare parts (e.g., oil filters, motor windings, control modules) and accessing specific technical documentation or service bulletins for this exact unit.