Product Overview: This document is a product selection catalogue for semi-hermetic compressors operating at 60 Hz, featuring refrigerants such as R404A, R507A, R407C, R134a, and R22, produced by FRASCOLD SpA. It includes model decoding, standard equipment, and optional accessories.

Model Designation: The model designation is explained with an example (Z 30 126 Y), where each part of the code represents the compressor series, nominal electric power in HP, displacement in m3/h at 1450 rpm, and lubricant type (Y = POE, polyol ester).

Standard Equipment: Compressors come equipped with suction and discharge valves, rubber vibration absorbers, oil lubrication charge, nitrogen charge to protect against humidity, oil sight glass, and protection devices. Series V, Z, and W include an oil pump and electronic oil pressure switch.

Electric Motors: Electric characteristics are provided, with models available in 50Hz versions. For different voltages, consultation with the technical department is advised.

Protection Devices: All compressors have PTC thermistors in the motor stator connected to an electronic control module for protection. Series V, Z, and W also have discharge gas high-temperature protection.

Lubrication: Series A, B, C, D, F, Q, and S use oil thrower disc lubrication, while series V, Z, and W use a high-pressure oil pump with an oil filter and pressure connections.

Optional Equipment: A range of optional accessories is available to ensure efficient and reliable operation under all conditions.

Refrigerating Capacity: Capacities are calculated under specific conditions: 60Hz power supply, no liquid subcooling, ambient temperature of 32°C, and suction gas temperature of 20°C. For R407C, temperatures are based on dew temperature according to EN12900.

Conversion Factors: To calculate actual refrigerating capacity, multiply the table value by the conversion factor for the specific condensing and evaporating temperatures.

Overview: The document provides detailed technical specifications and data on refrigerating capacities for various refrigerants, including R404A, R507A, and R407C. It includes tables of refrigerating capacities at different evaporating and condensing temperatures, focusing on head cooling and compressor performance.

Key Sections:

• Refrigerating Capacities: Lists refrigerating capacities in watts (W) for different refrigerants across a range of evaporating temperatures from 7.5°C to -45°C, with condensing temperatures of 30°C, 40°C, 45°C, and 50°C.
• Refrigerant R507A: Specific instructions for calculating refrigerating capacities for R507A are provided.
• Compressor and Condensing Details: Information on compressor performance with head cooling and the impact of condensing temperatures on refrigerating capacity.
• Data Tables: Extensive tables highlight performance differences at specific temperature settings.
• On Request Capacities: Certain refrigerating capacities are available on request, indicating customizable options.

Critical Information:

• Temperature Range: Covers a wide range of evaporating temperatures, crucial for understanding performance under different conditions.
• Refrigerant Specifics: Detailed data for R404A, R507A, and R407C, with specific notes on calculation methods for R507A.
• Head Cooling: Emphasizes the impact of head cooling on compressor performance, suggesting its importance in system efficiency.

Conclusion: This document serves as a comprehensive guide for understanding the refrigerating capacities of different refrigerants under various operational conditions, providing essential data for system design and optimization.