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Open Drive Screw Compressors - OS85-Series SP-510-2

Open Drive Screw Compressors - OS85-Series  SP-510-2
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Open Drive Screw Compressors - OS85-Series SP-510-2

Product catalog summary
Overview: The document details the technical specifications and features of the OS.85 series open drive screw compressors, emphasizing their efficiency, versatility, and robust design. These compressors are engineered for high performance and are compatible with various refrigerants such as R134a, R404A/R507A, R22, and NH3.
Special Highlights:
  • Integration of proven OS technology with innovative features from the CSH series.
  • Optimized for parallel compounding, offering high system capacity and a space-saving design.
  • Slider control for infinite or stepped capacity control and an economizer with sliding suction position for effective part-load operation.
  • Integrated oil management system featuring an automatic oil stop valve, oil filter, and oil monitoring.
  • Direct drive compatibility with IEC motors.
Technical Features:
  • Energy-efficient with a high-efficiency profile and advanced geometry.
  • Universal application with various refrigerants, with or without an economizer.
  • Robust design with solid tandem axial bearings and automatic start unloading.
  • Easy mounting with a flanged shaft for direct motor mounting.
  • Dual capacity control with infinite or 3-stage slider control.
  • Intelligent electronics for thermal monitoring and phase sequence monitoring.
Lubricants: The document specifies compatible oil types and operational conditions, including the need for consultation with BITZER for certain oil types and discharge gas temperatures.
Performance Data: Based on European Standard EN 12900, the performance data includes considerations for liquid subcooling and economizer operation. The BITZER Software is recommended for detailed compressor selection and performance analysis.
Application Limits: The document outlines operational limits for different refrigerants and compressor configurations, ensuring optimal performance and safety. It specifies the application limits for evaporating and condensing temperatures, highlighting the need for oil cooling in certain ranges and referring to BITZER Software for detailed calculations and ECO operation limits.
Oil Cooling: Oil cooling is necessary in specific operational ranges, and the required oil cooler capacity can be determined using BITZER Software.
Refrigerants and Oils: For R134a, polyol-ester oil (BSE170) is required. For R404A and R507A, the same oil is necessary, while R22 requires oils B100 or B150SH. NH3 operations require special oils.
Performance Data: Performance data is provided for various refrigerants, based on 10 K suction superheat without liquid subcooling, at a motor speed of 2900 min-1 (50 Hz). Data for individual input values and 60 Hz operation can be found in BITZER Software.
Economiser Operation: Performance data with liquid subcooling is available for economiser operation, with specific conditions outlined for different refrigerants.
Technical Data: Technical specifications for compressor types OSK8551-K, OSK8561-K, OSK8571-K, and OSN8571-K are provided, including dimensions and connection sizes.
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Catalog excerpts

Open Drive Screw Compressors - OS85-Series  SP-510-2-2

Contents Page The decisive technical features 3 Sommaire Page Donnees de puissance pour setzen weltweit den MaRstab fur technische Innovation und Effizienz the worldwide standard for techni- les criteres de reference universelle de I'innovation technique, et de I'efficacite • hohe Systemleistung • platzsparende Anordnung alter Anschlusse auf einer Seite □ Schieberregelung fur stufenlose oder stufige Leistungsregelung □ Economiser mit gleitender Einsaug- position - auch bei Teillast effektiv • Automatisches Olstopp-Ventil □ Combination of approved OS tech- nology with the innovative features of...

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Open Drive Screw Compressors - OS85-Series  SP-510-2-3

Die entscheidenden technischen Merkmale The decisive technical features Les critères techniques déterminants ❏ Energie-effizient • Hochleistungsprofil mit weiterentwickelter Geometrie und hoher Steifigkeit • optimaler Economiser-Betrieb ❏ Energy efficient • High-efficiency profile with advanced geometry and high stiffness • Optimum economiser operation ❏ Performant en énergie • Profil à rendement élevé avec une géométrie encore plus développée et une forte rigidité • Fonctionnement économiseur optimisé ❏ Universell • R134a, R404A, R507A, R407C, R22 und NH3 • mit und ohne Economiser ❏ Universal...

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Open Drive Screw Compressors - OS85-Series  SP-510-2-4

Weitere Hinweise siehe Projektierungs- Q Betrieb mit gleichwertigen Mineralolen oder PAO- Olen ist mbglich, bedingt jedoch individuelle © Druckgas-Temperatur bis 100°C nur nach Ruck- Supplementary information see Applications Q Operation with equivalent mineral oils or PAO oils is possible but must be individually agreed on with BITZER. (2) Discharge gas temperature up to 100°C only after consultation with BITZER. Information supplemental voir Manuel de mise en Q L'emploi d'huiles equivalentes minerales ou PAO est possible, mais ceci necessite cependant une consul- tation individuelle avec BITZER....

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Open Drive Screw Compressors - OS85-Series  SP-510-2-5

Einsatzgrenzen R134a Application limits CR 100% Limites d'application R134a 70 CR 75% ■ CR 50% 70 tc tc 60 60 50 50 40 40 OSK OSK 30 30 toh = 10 K 20 -30 -20 R404A ■ R507A -10 0 10 to toh = 10 K 20 -30 30 CR 100% R404A ■ R507A -10 0 10 to 30 CR 75% ■ CR 50% 60 60 OSN tc -20 OSN tc 50 50 40 40 30 30 20 10 -50 OSK toh = 10 K -40 -30 -20 -10 to 10 20 10 -50 OSK toh = 10 K -40 -30 -20 -10 to Typenbezeichnung Type designation Designation des types OSKA 8561 –K Offener Schraubenverdichter OSKA 8561 –K Open screw compressor OSKA 8561 –K Compresseur à vis ouvert OSKA 8561 –K Anwendungsbereich (K oder...

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Open Drive Screw Compressors - OS85-Series  SP-510-2-6

Einsatzgrenzen R22 Application limits CR 100% Limites d'application R22 60 CR 75% ■ CR 50% 60 OSN tc tc OSN 50 50 40 40 30 30 OSK OSK 20 20 toh = 10 K toh = 10 K 10 -50 NH3 -40 -30 -20 -10 0 10 -50 20 to CR 100% NH3 60 tc -40 -30 -20 -10 0 20 to CR 75% ■ CR 50% 60 tc [ OSNA 50 50 OSNA 40 40 30 30 OSKA 20 OSKA 20 toh = 10 K 10 -50 -40 -30 -20 -10 0 to toh = 10 K 20 10 -50 -40 -30 -20 -10 0 20 to Legende Legend Légende to Verdampfungstemperatur (°C) tc Verflüssigungstemperatur (°C) 6toh Sauggasüberhitzung to Evaporating temperature (°C) tc Condensing temperature (°C) 6toh Suction superheat to Température...

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Open Drive Screw Compressors - OS85-Series  SP-510-2-7

ohne Flussigkeits-Unterkuhlung, Motor- Performance data based on 10 K suction superheat, without liquid subcooling, motor speed se referant a surchauffe a Inspiration de 10 K, sans sous-refroidissement de liquide, Klima- / NormalbereichO High- / Medium temperature range® Climatisation / Moyennes temperatures® Leistungsdaten fur individuelle Eingabe- Performance data for individual input data Donnees de puissance pour des donnees werte und 60 Hz-Betrieb siehe BITZER and 60 Hz operation see BITZER Software d'entree individuelles et fonctionnement a Software 60 Hz voir BITZER Software © Leistungsdaten...

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Open Drive Screw Compressors - OS85-Series  SP-510-2-8

ohne Flussigkeits-Unterkuhlung, Motor- Performance data based on 10 K suction superheat, without liquid subcooling, motor speed se referant a surchauffe a Inspiration de 10 K, sans sous-refroidissement de liquide, Klima- / Normalbereich High- / Medium temperature range Climatisation / Moyennes temperatures Tiefkiihlbereich Low temperature range Congelation Economiser-Betrieb Economiser operation Fonctionnement avec economiseur Leistungsdaten fur individuelle Eingabe- Performance data for individual input data Donnees de puissance pour des donnees werte und 60 Hz-Betrieb siehe BITZER and 60 Hz...

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Open Drive Screw Compressors - OS85-Series  SP-510-2-9

ohne Flussigkeits-Unterkuhlung, Motor- Performance data based on 10 K suction superheat, without liquid subcooling, motor speed se referant a surchauffe a Inspiration de 10 K, sans sous-refroidissement de liquide, Klima- / Normalbereich High- / Medium temperature range Climatisation / Moyennes temperatures Tiefkiihlbereich Low temperature range Congelation Economiser-Betrieb Economiser operation Fonctionnement avec economiseur Leistungsdaten fur individuelle Eingabe- Performance data for individual input data Donnees de puissance pour des donnees werte und 60 Hz-Betrieb siehe BITZER and 60 Hz...

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Open Drive Screw Compressors - OS85-Series  SP-510-2-10

ohne Flussigkeits-Unterkuhlung, Motor- Performance data based on 5 K suction superheat, without liquid subcooling, motor speed se referant a surchauffe a Inspiration de 5 K, sans sous-refroidissement de liquide, Klima- / Normalbereich High- / Medium temperature range Climatisation / Moyennes temperatures Economiser operation Fonctionnement avec economiseur Leistungsdaten fur individuelle Eingabe- werte und 60 Hz-Betrieb siehe BITZER Performance data for individual input data and 60 Hz operation see BITZER Software Donnees de puissance pour des donnees d'entree individuelles et fonctionnement...

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Open Drive Screw Compressors - OS85-Series  SP-510-2-11

Technische Daten Technical data Caracteristiques techniques R717/NH3-Verdichter R717/NH3 compressors Compresseurs pour R717/NH3 © Gewicht mit Saugflansch und Lotbuchse. (D Effektive Leistungsstufen sind von den Betriebsbedingungen abhangig © Weight including suction flange with brazed bushing. Suction shut-of valve (optional up to © Effective capacity stages are dependent upon operating conditions. 25%: integrated start unloading © Poids y compris bride avec manchon a braser. Vanne d'aspiration (option jusqu'a DN 100): (D Les etages de puissance effectifs dependent des 25%: demarrage a vide integre...

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