1. Catalogs
  2. BITZER
  3. Semi-hermetic compact screws SP-175-1

Semi-hermetic compact screws SP-175-1

Semi-hermetic compact screws SP-175-1
1 / 20 PagesView full catalog

Semi-hermetic compact screws SP-175-1

Product catalog summary
Overview: The document details the technical specifications and features of the CSH Series semi-hermetic compact screw compressors, models 65, 75, 85, and 95, highlighting their energy efficiency, compact design, and application flexibility.
Key Features:
  • Energy Efficiency: Features high-efficiency profiles with infinite or closely stepped capacity control and optimal economiser operation.
  • Universal Application: Compatible with refrigerants R134a, R407C, and R22, with options for R404A and R507A.
  • Compact Design: Noted for the shortest fitting length in its class, with integrated shut-off valves and connections.
  • Flexibility: Offers dual capacity control with options for 4-stage or infinite control, and rotatable gas connections.
  • Optimised for R134a: Provides extended capacity and application range, high efficiency, and smooth operation.
Technical Features:
  • High-Efficiency Profile: Utilizes advanced geometry and a patented manufacturing process for precision and stiffness.
  • Double-Walled Rotor Housing: Ensures stability and sound attenuation.
  • Long-Life Bearings: Features robust axial tandem bearings with pressure unloading.
  • Large Volume Motor: High efficiency with integrated PTC sensors and optional star delta start.
  • Dual Capacity Control: Facilitates easy control with solenoid valves and automatic start unloading.
Additional Features:
  • Economiser: Efficient operation with sliding suction position and pulsation muffler.
  • Intelligent Electronics: Includes thermal monitoring, phase sequence monitoring, and manual reset lock-out.
  • Optimised Oil Management: Features a three-stage oil separator and fine filter for high viscosity.
  • Fully Equipped: Comes with capacity control, shut-off valves, oil sight glass, and electronic protection device.
  • Optional Accessories: Includes suction and discharge shut-off valves, oil level switch, and anti-vibration mountings.
Performance Data: Based on ARI540 standard and 60 Hz operation, with detailed data available through BITZER Software for individual compressor selection and performance analysis.
Specifications and Performance Data:
The document provides detailed specifications and performance data for BITZER compressors, focusing on the CSH series. It includes information on temperature settings for liquid subcooling and the use of economizers, with the liquid temperature set at 10°F above the saturation temperature at the economizer's entry.
Individual Operating Points:
For precise compressor selection, BITZER Software is recommended. This software allows for the input of individual data and provides comprehensive output, including power parameters, application limits, technical data, and detailed drawings. Data sheets can be exported as PDFs or used in other software like Excel.
Performance Standards:
Performance data is based on ARI540 standards and operation at 60 Hz, with evaporation and condensation temperatures referring to 'dew point' values. The document outlines connection points for pressure measurements and notes that pressure loss in shut-off and check valves is not considered.
ASERCOM Certification:
The document discusses the ASERCOM certification process for compressor performance data, ensuring high standards through plausibility checks and regular tests by independent institutes. Only a limited number of compressors are certified, and certified products carry the "ASERCOM certified product" label.
Application Limits and Cooling Requirements:
Thermal limits for capacity control and additional cooling depend on the compressor type. Liquid injection or external oil cooling is required for certain operations, and application limits can be extended with system layout adjustments, subject to coordination with BITZER.
Performance Data Summary:
Performance data is provided for various compressor types, with details on cooling capacity, power consumption, and operating conditions. The data is based on 20°F suction superheat and 15°F liquid subcooling, with specific requirements for R134a operation using polyol-ester oil BSE170.
See more

Catalog excerpts

Semi-hermetic compact screws SP-175-1-1

Semi-hermetic Compact Screws Vis hermétiques accessibles compactes Compresores de tornillo semi-herméticos compactos

 Open the catalog to page 1
Semi-hermetic compact screws SP-175-1-2

Aspectos destacados Características técnicas Application limits Limites d'application Données de puissance pour R134a Datos de rendimiento para R134a Technical data Données techniques Datos técnicos Dimensional drawings Croquis cotés Dibujos acotados The CSH Compact Screws Set the Worldwide Standard for Technical Innovation and Efficiency Les vis compactes CSH sont le critère de référence universel de l'innovation technique et de l'efficience Los tornillos compactos CSH han marcado pauta en todo el mundo por su innovación técnica y eficiencia Atributos especiales • High-efficiency profile • Infinite...

 Open the catalog to page 2
Semi-hermetic compact screws SP-175-1-3

The Closely Graduated and Extensive Capacity Range La large gamme de puissance étroitement graduée Amplia gama de potencias de graduación fina 50000 CFH 45000 Displacements Volumes balayés (60 Hz) Volúmenes desplazados The Decisive Technical Features Les critères techniques déterminants Características técnicas ❏ Profil à rendement élevé ❏ Perfil de alto rendimiento Featuring • Further developed geometry • High stiffness • Patented highest precision manufacturing process • High tip speed Particulièrement efficient par • Géométrie plus perfectionnée • Rigidité élevée • Procédé de production patenté...

 Open the catalog to page 3
Semi-hermetic compact screws SP-175-1-4

❏ Approved, long-life bearings with pressure unloading ❏ Paliers résistants à la fatigue avec décharge de pression ❏ Cojinetes resistentes con descarga de presión • Robust axial tandem bearings • Bearing chamber pressure isolated from compression chamber by sealing element • Pressure unloading of axial bearings • Paliers de butée en tandem robustes • Logement de paliers isolé de la chambre de compression par élément d'étanchéité • Décharge de pression des paliers de butée • Cojinetes axiales en tándem • Cámara de cojinetes aislada de la cámara de compresión por medio de un elemento de obturación...

 Open the catalog to page 4
Semi-hermetic compact screws SP-175-1-5

❏ Economiser with sliding suction position ❏ Economiseur avec position d'aspiration coulissante ❏ Economizador con posición de aspiración deslizable • Unique for compact screws • Efficient economiser operation with part load as well • Highest cooling capacity and energy efficiency at full and part load conditions • Pulsation muffler for ECO suction line • Unique pour vis compactes • Economiseur efficient même en réduction de puissance • Puissance frigorifique et coefficient de performance des plus élevés en pleine charge et en régulation de puissance • Amortisseur de pulsations pour la conduite...

 Open the catalog to page 5
Semi-hermetic compact screws SP-175-1-6

Performance data Performance data are based on ARI540 standard and 60 Hz operation. Les données de puissance se basent sur un fonctionnement à 60 Hz et sur standard ARI540. Los datos de rendimiento se basan en standard ARI540 y un funcionamiento a 60 Hz. Les températures d'évaporation et de condensation se réfèrent aux ''valeurs du point de rosée'' (conditions de vapeurs saturées). En ellos las temperaturas de evaporación y condensación se refieren a ''valores del punto de rocío'' (condiciones del vapor saturado). Reference points for evaporating and condensing pressures Points de référence pour...

 Open the catalog to page 6
Semi-hermetic compact screws SP-175-1-7

ASERCOM certified performance data Données de puissance certifiées par ASERCOM Datos del rendimiento certificados por ASERCOM The Association of European Refrigeration Compressor and Controls Manufacturers (ASERCOM) has implemented a procedure of certifying compressor performance data. L'Association Européene des fabricants de compresseurs et de produits de régulation (ASERCOM) a mis en place une procédure de certification des données de puissance des compresseurs frigorifiques. La Asociación de Fabricantes Europeos de Compresores y Controles para Refrigeración (ASERCOM) ha implementado un programa...

 Open the catalog to page 7
Semi-hermetic compact screws SP-175-1-8

Application limits Limites d'application Data are based on dew point Données se refèrent au point de rosée Los datos se refieren al punto de rocío Data are based on dew point Données se refèrent au point de rosée Los datos se refieren al punto de rocío Maximum condensing temperature with R407C and R22 is reduced. Température du condensation maximale réduite avec R407C et R22. Temperatura de condensación máxima reducida con R407C y R22. Voir limites d'application. Véanse los límites de aplicación.

 Open the catalog to page 8
Semi-hermetic compact screws SP-175-1-9

Explanation to application limits Explication des limites d'application Explicación de los límites de aplicación Thermal limits for capacity control (CR) and additional cooling (liquid injection and external oil cooling) depend on the compressor type. The maximum condensing temperature can be restricted with individual types. Les limites thermiques pour la régulation de puissance (CR) et le refroidissement additionnel (injection de liquide et refroidissement d'huile externe) dépendent du type du compresseur. La température de condensation maximum peut-être limitée pour quelques types. Los límites...

 Open the catalog to page 9
Semi-hermetic compact screws SP-175-1-10

R134a ■ STANDARD Performance data 60 Hz based on 20°F suction superheat, 15°F liquid subcooling 1 Cooling capacity Puissance frigorifique Potencia refrigeradora Compressor Cond. temp. type Compresseur Temp. de Cond. type Temp. Tipo de compresor de Cond. °F Datos de rendimiento 60 Hz sobre la base de un sobrecalentamiento del gas aspirado de 20°F, 15°F subenfriamiento del líquido 1 Power consumption Puissance absorbée Consumo de potencia Fonctionnement standard Funcionamiento estándar Performance data for individual input data and for R407C or R22 see BITZER Software. Données de puissance 60 Hz...

 Open the catalog to page 10

All BITZER catalogs and technical brochures

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.