Semi-hermetic compressors for 744 (CO2), sub-critical applications

Product catalog summary

Introduction
This document presents a new series of semi-hermetic compressors by FRASCOLD SpA, specifically designed for sub-critical CO2 applications in cascade systems. These compressors are optimized for high-pressure conditions and incorporate innovative solutions for reliable operation.

Specifications
The SK series compressors are engineered to handle high working and static pressures. Key features include high-efficiency electric motors, innovative valve plates, and a POE lubricant tailored for CO2. Standard features include an internal relief valve set at 28 bar, suction and discharge valves, rubber vibration absorbers, and protective coatings.

Electric Motors
Details on the electric characteristics and performance of the motors are provided. For specific voltage requirements, consultation with the Technical Department is recommended.

Protection Devices
All compressors are equipped with PTC thermistors integrated into the motor's stator winding, connected to a KRIWAN INT69 electronic control module. Additional thermistor sensors for discharge temperature control are available for certain series upon request.

Technical Data
The document includes comprehensive technical data such as displacement, weight, and valve dimensions, along with electrical data like maximum operating current (MRA) and locked rotor current (LRA) for various models.

Refrigerating Capacity
Refrigerating capacities are specified for different evaporating and condensing temperatures, calculated under conditions of a 50Hz power supply, no liquid subcooling, an ambient temperature of 32°C, and suction gas superheating of 20K.

Dimensional Drawings
Dimensional drawings are provided, showing the positions of various plugs and sight glasses for maintenance and operation.

Main Sections

Components and Parts: Lists various compressor components, including high and low-pressure plugs, oil charge and drain plugs, oil level sight glass, crankcase heater seat, and various valves, labeled in multiple languages.
Dimensional Specifications: Provides detailed measurements for different compressor models, crucial for installation and compatibility checks.
Series and Models: Categorizes compressors into series (e.g., A-SK, D-SK, Q-SK, S-SK) with specific model numbers and corresponding dimensions and specifications.
Vibration Absorbers: Includes specifications for vibration absorbers, highlighting their role in reducing operational noise and wear.
Contact Information: Concludes with contact details for Frascold SpA, including address, phone, fax, email, and website.

Key Data and Measurements

Compressor dimensions are provided in millimeters for various models, emphasizing the importance of precise measurements for installation.
Valve sizes and types are specified to ensure compatibility with different systems and applications.
Mounting dimensions and inter-axis distances are detailed, critical for secure and effective installation.

Critical Information

Ensure correct installation using specified dimensions and mounting instructions to avoid operational issues.
Use appropriate plugs and valves as per the specifications to maintain system integrity and performance.
Contact Frascold SpA for further technical support or inquiries regarding the compressors.

Catalog excerpts

Semi-hermetic compressors for 744 (CO2), sub-critical applications-2

FRASCOLD SpA FRASCOLD SpA FRASCOLD SpA se rթserve le droit de modifier sans pravis les donnes et les caract驩ristiques contenues dans cette notice. reserves the right to change at any time, specifications or design without notice and without incurring obligations.Օ si riserva il diritto di modificare i dati e le caratteristiche contenute nel presente catalogo, senza obbligo di preavviso. FRASCOLD SpA behդlt sich das Recht vor Spezifikationen oder Ausfhrungen jederzeit ohne Bekanntgabe zu ndern. > FCAT15-02 Ref: Edizione: Luglio 2008 sostituisce: FCAT15-01 Febbraio 2007 Realizzazione: FRASCOLD...

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Semi-hermetic compressors for 744 (CO2), sub-critical applications-3

Eine neue Verdichtersreihe fr > The latest series of reciprocating compressors for CO > Una nuova serie di compressori pour CO > Una nuova serie di compressori per applicazioni con CO CO > 2 Anwendungen in unterkritischen Kaskadensystemen > 2 in impianti subcritici in cascata > 2 applications in sub-critical cascade systems > 2 dans des systmes 쨠 cascade sous-critiques I dettagliati studi condotti presso il laboratorio FRASCOLD si sono concretizzati nei compressori semiermetici monostadio serie SK, capaci di operare con refrigerante CO Detailed study carried out in FRASCOLD laboratory results...

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