Semi-hermetic Reciprocating Compressors for CO2 - Octagon Series KP-120-3
Semi-hermetic Reciprocating Compressors for CO2 - Octagon Series KP-120-3
The document introduces the Octagon® Series of semi-hermetic reciprocating compressors, specifically designed for sub-critical CO2 applications. This series comprises 16 models with cooling capacities from 4.4 to 80 kW, ideal for sub-critical CO2 cascade systems.
The compressors feature a robust drive gear and valve plate construction optimized for CO2, enhancing efficiency and safety. They offer expanded application ranges with investment costs similar to conventional systems.
- Patented integrated pulsation mufflers by BITZER.
- Wear-resistant drive gear with multilayer bearings.
- Special POE oil for CO2 operation.
- High-pressure resistant housing supporting up to 40 bar on the HP side.
- Advanced centrifugal lubrication system.
- Highly efficient working valves.
Designed for a 20 K suction superheat, with performance data for various evaporation and condensation temperatures.
Explains the model designation system, including codes for motor size, bore x stroke, number of cylinders, CO2 application, and oil charge.
Provided for 50 Hz operation, based on 20 K suction gas superheat without liquid subcooling. Data for 60 Hz operation is available upon request.
Includes displacement, number of cylinders, oil charge, weight, maximum operating current, and power consumption. Electrical data and pipe connections are detailed.
Due to high CO2 solubility in oil, a crankcase heater is required, with specifications for different models provided.
Technical specifications and guidelines for self-regulating PTC crankcase heaters, essential due to CO2 solubility in oil affecting compressor performance.
- Available in power ranges: 0-60 W, 0-120 W, and 0-140 W.
- Voltage tolerance is ±10% based on the mean voltage range.
- Conversion factors for different voltages: 380 V (220 V) is 0.95, and 420 V (240 V) is 1.05.
- Consider maximum working current and power consumption when selecting contacts, cables, and fuses.
- Operational category for contactors is AC3.
- High pressure connection (HP)
- Low pressure connection (LP)
- Oil fill plug and oil drain
- Crankcase heater and oil monitoring connections
- External pressure relief valve
Includes detailed dimensional drawings for various compressor models, specifying measurements in millimeters for components such as height, width, and depth.
Provided by Bitzer Kühlmaschinenbau GmbH, located in Sindelfingen, Germany.
Catalog excerpts
subkritische Anwendungen Sub-critical Applications hermetiques accessibles Serie Octagon® pour applications sous-critiques
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unterkritischen Kaskadensystemen Mit der Einfuhrung dieser weiterent- stehen nun 16 Modelle im Bereich von Diese neue Verdichterbaureihe tritt die Nachfolge der bereits seit den 90er erfolgreich eingesetzten K-Serie an. Eine speziell an die Anforderungen Ventilplattenkonstruktion ermoglichen eine weitere Steigerung von Effizienz weiterung der Produktpalette durch engere Leistungsabstufungen, konn- dichter ausgeweitet und vereinheitlicht Die positiven Ergebnisse einer mittler- weile hohen Zahl von Verdichtern im Betrieb und die okologischen Aspekte fordern zusatzlich die Akzeptanz der Installateuren....
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Die besonderen Akzente der Octagon®-CO2-Baureihe Special features of the Octagon® CO2 Series Les points marquants de la gamme Octagon® Séries CO2 Integrierte Pulsationsdämpfer (BITZER patentiert) Fortschrittliches Zentrifugal-Schmiersystem mit Ölzentrifuge 1 Advanced centrifugal lubrication system by dynamic disc 2 Integrated pulsation mufflers (BITZER patented) Amortisseurs de pulsation intégrés (brevet de BITZER) Système de lubrification centrifuge avancé par disque dynamique 4 Système d’entraîtement résistent à l’usure avec paliers revêtus de multicouche perfectionnés Lieferumfang und Zubehör...
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Einsatzgrenzen Application limits bezogen auf 20 K Sauggas-Uberhitzung based on 20 K suction superheat Limites d'application se referant a une surchauffe a I'aspriation Atoh Suction superheat (K) Atoh Surchauffe a I'aspiration (K) Explanation of model designation dentification letter for subcritical dentification letter for Octagon® series Codification pour serie Octagon® Explication de la designation des types Chiffre-indice pour le nombre de cylindres Codification pour alesage x course Codification pour applications C02 Code pour taille de moteur dentification for C02 application and oil Codification...
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ohne Flussigkeits-Unterkuhlung based on 20 K suction gas superheat without liquid subcooling se referant a une surchauffe a Inspiration Performance data for individual input data and 60 Hz operation upon Donnees de puissance pour des donnees d'entree individuelles et fonctionnement I Pour le fonctionnement avec C02 il est I necessaire d'utiliser de I'huile BSE 85K
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Technische Daten Technical data Caracteristiques techniques ment with Discharge line Pipe connections Suction line Elektrische Daten Electrical Data Caracteristiques electriques (Rotor bloque) PTC-Heizung selbst-regulierend PTC-Heizung selbst-regulierend PTC-Heizung selbst-regulierend c Olsumpfheizung ist grundsatzlich erfor- -g" derlich wegen hoher C02-Ldslichkeit © Toleranz (±10%) bezogen auf Mittelwert des Spannungsbereichs. Andere Span- nungen und Stromarten auf Anfrage. © Fur die Auslegung von Schutzen, Zulei- tungen und Sicherungen max. Betriebs- strom / max. Leistungsaufnahme beruck- ®...
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