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- Rosenberg Ventilatoren GmbH
- Centrifugal fans with free running impellers
Centrifugal fans with free running impellers
Centrifugal fans with free running impellers
The document introduces the RoVent fan selection software, which facilitates precise selection from over 1,700 fan models based on specific operating points. It provides detailed documentation for each selected fan type and is regularly updated. The software is available for free on CD-ROM or via download from the company's website.
The document describes various centrifugal fans, including AC and EC models with backward curved impellers, designed for air handling units, hygienic devices, and clean room filter units. These fans handle air and non-aggressive gases, with motor options including asynchronous external rotor motors and electronically commutated (EC) motors.
All fans comply with ErP 2015 standards and are measured according to accuracy class 1 (DIN 24166). Impellers are balanced per DIN ISO 1940 standards. The document stresses checking the direction of rotation to prevent motor overload.
Noise measurements follow DIN 45635 and ISO 13347-3 standards. Formulas for calculating sound power levels are provided, with emphasis on installation conditions affecting noise levels.
Recommendations for installing centrifugal fans in housings or air handling units include maintaining specific installation ratios to minimize pressure losses, with diagrams illustrating installation-based pressure losses.
Air performance curves are established according to DIN EN ISO 5801 standards, showing pressure increase as a function of volume flow. Power consumption changes linearly with the density of the conveyed air or gas.
The document lists various wheel types and constructions for EC and AC centrifugal fans, detailing materials used and specific fan models available for different sizes and constructions.
The document provides technical specifications and configurations for motorized impellers and fan modules, focusing on models RRE, RRM, EKHM, DKHM, GKHR, GKHM, GKHS, and GKHB. It includes voltage requirements, motor types, and available accessories like inlet cones.
Multiple models are listed with voltage requirements, motor types, and article numbers. For example, RRE/RRM models operate on 1~200-240 V, while GKHR/GKHM/GKHS models have options for 1~200-277 V and 3~380-480 V. Wiring diagrams are provided for each model.
Performance graphs show pressure versus airflow for different models, aiding in understanding operational efficiency and capacity under various conditions.
The document details construction types and available accessories for each model, such as free-running impellers with external rotor motors and fan modules with mounting stands.
Each model is available in different sizes and configurations, indicated by type codes that provide information on motor type, construction design, impeller diameter, and mechanical design.
The document emphasizes selecting the correct model based on voltage compatibility and required accessories, with custom dimensions available upon request for certain models.
Rosenberg EC centrifugal fans feature backward curved high-efficiency impellers and EC motors, offering a compact, efficient, and noise-optimized design. They operate within a power range of 0.12 kW to 6.6 kW, with integrated or external EC electronics.
- Fast start-up due to pre-configured systems.
- High efficiency and compact design.
- Continuously controllable speed.
- Independent of supply frequency (50/60Hz).
- Easy maintenance with no belt drive deterioration.
EC motors are permanently magnetized synchronous motors with external rotor designs, converting AC to DC voltage using a rectifier. EC electronics control motor phases for efficient and quiet operation.
EC motors come with connection cables or junction boxes and can be controlled via 0-10V signals, PWM signals, or Modbus RTU telegrams, supporting both open-loop and closed-loop control modes.
The fans comply with EMV Directive 2004/108/EG, Low Voltage Directive 2006/95/EC, and ErP Directive 2009/125/EC, with UL/CSA recognition for certain motor sizes.
Detailed technical data includes sound levels at various frequencies and operational parameters for different fan sizes, ensuring optimal performance and efficiency.
Input resistance, PWM frequency, permissible input signal, voltage output, alarm output, and power supply configurations are detailed.
Operation modes, wiring diagrams, and standards for short circuit protection and no parallel wiring are provided.
Examples include open-loop control, closed-loop control, temperature control, and constant pressure control.
Details on fan models with specifications for special voltages at 60Hz are included.
Potentiometers and temperature controllers are available for manual set point adjustments.
Speed control is achieved by reducing frequency using a frequency converter, with a cut-off frequency set at 50Hz. Single-phase fans are not compatible with frequency controllers.
Rosenberg AC centrifugal fans comply with relevant directives, with UL/CSA recognition for most motors used in 60Hz fan types.
Technical data for various fan models includes voltage, frequency, power, current, speed, and dimensions, with fans designed for mountability in all positions.
Performance curves and sound levels are provided, indicating airflow rates, pressure, and noise levels in decibels.
Detailed specifications for various fan types include voltage, frequency, power, current, speed, and temperature ratings, with fans designed for mountability in all positions.
Sound levels are provided for both inlet and outlet sides, with measurements in decibels across various frequencies.
Dimensions are specified in millimeters, highlighting the compact and space-saving design of the fans.
Wiring diagrams are provided for different fan models, detailing electrical connections and configurations for high and low-speed operations.
Performance curves illustrate air performance, with parameters such as air volume and pressure displayed.
Technical specifications for various fan types include backward curved high-efficiency impellers, 100% infinitely variable speed, and compact designs.
Electrical specifications for each fan type include voltage, frequency, power, current, speed, and temperature ratings.
Sound levels are provided for both inlet and outlet sides, with measurements in decibels across various frequencies.
Wiring diagrams are included for each fan type, detailing connections for different colored wires and configurations for high and low-speed operations.
Air performance curves show relationships between airflow and pressure, aiding in understanding operational efficiency and capacity.
Dimensions are provided for each fan model, emphasizing the compact and space-saving nature of the designs.
For optimal performance, adherence to specified electrical and mechanical parameters is recommended, with proper installation and maintenance crucial for longevity and efficiency.
Catalog excerpts
Ventilatorenauswahlprogramm Fan Selection Software Mit unserem Auswahlprogramm RoVent ist eine betriebspunktgenaue Auswahl aus mehr aus 1.700 Ventilatorenmodellen schnell und einfach möglich. Weiterhin steht Ihnen eine umfangreiche Dokumentation des ausgewählten Ventilatortyps zur Verfügung. Durch regelmäßige Updates bleibt die Software ständig auf dem aktuellsten Stand. With our fan selection software RoVent an operating point specific fan selection can be made quickly and easily from over 1.700 fan models. Furthermore, detailed documentation on the selected fan type is available. The software...
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Inhalt / Content Einleitung / Introduction Seite / Page Eigenschaften und Ausführungen / Features and Constructions Übersicht der Laufradtypen und Bauformen / Overview: Wheel Types and Constructions Übersicht der Luftleistungen (Schnellauswahl) / Overview: Air Performances (Quick Selection) EC-Radialventilatoren mit rückwärtsgekrümmten Laufrädern / EC Centrifugal fans with backward curved impellers Typenschlüssel und Kurzbeschreibung / Type Code and Short Description Anschlussbelegungen / Pin Connections Applikationsbeispiele / Application Examples Sonderspannungen 60Hz / Special Voltages 60Hz...
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Eigenschaften und Ausführungen / Features and Constructions Rosenberg Radialventilatoren mit freilaufendem Rad sind hauptsächlich für den Geräteeinbau konzipiert und kommen vorzugsweise in Klimageräten, Hygienegeräten, Reinraumfiltereinheiten sowie RLT-Anlagen zum Einsatz. Die Ventilatoren sind zur Förderung von Luft und sonstigen, nicht aggressiven Gasen oder Dämpfen bestimmt. Auf Anfrage sind weitere Varianten möglich (z.Bsp. spez. Lackierung). Rosenberg centrifugal fans with free-running impellers were designed for installation in appliances such as air-handling-units, hygienic and clean room...
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Eigenschaften und Ausführungen / Features and Constructions Geräusche Die Messungen und deren Darstellung erfolgt nach DIN 45635, Teil 38, bzw. ISO 13347-3 gemäß dem dort beschriebenen Hüllflächenverfahren, nach dem über eine quaderförmige Meßfläche mehrere Meßpunkte erfaßt werden. Nachfolgende Abbildung zeigt schematisch das Messsystem. Noise Levels The tests and their performance curves were conducted according to DIN 45635, part 38, and ISO 133347-3 in accordance with the envelope surface method, following data collection at several test points over a square measuring area. The following diagram...
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Eigenschaften und Ausführungen / Features and Constructions Einbauempfehlung in Gehäuse oder Kastenklimageräte Wir empfehlen beim Einbau eines Radialventilators mit freilaufendem Rad in ein Gehäuse, das Einbauverhältnis. Installation in Housings or Air Handling Units When installing a centrifugal fan with a free-running impeller into a housing, we recommend keeping the installation ratio as follows: Internal dimension of housing A ≥ 1,6 External dimension of impeller D Das folgende Diagramm zeigt die Einbauverluste bei empfohlenem und zu kleinem Einbauverhältnis: The following diagram shows installation-based...
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Luftleistungskennlinien / Air Performance Curves Luftleistungskennlinien Die Luftleistungskennlinien wurden auf dem abgebildeten saugseitigen Kammerprüfstand entsprechend DIN EN ISO 5801 aufgenommen. Sie zeigen die Druckerhöhung als Funktion des Volumenstromes und gelten für Luft mit einer Dichte von 1,2 kg/m³ und bei einer Temperatur von t=20°C. Die Kennlinien wurden in Einbauart A (frei saugend, frei ausblasend) aufgenommen. Air Performance Curves The air performance curves have been established using the intake test method in the test chamber as shown below according to DIN EN ISO 5801. They...
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Laufradtypen und Bauformen / Wheel Types and Constructions EC-Radialventilatoren / EC Centrifugal fans Laufrad / Wheel Kunststofflaufrad mit EC-Motor / wheel made of plastic with EC drive Kompakt-Hochleistungsstahllaufrad mit EC-Motor / compact high efficiency wheel made of steel with EC drive Hochleistungsaluminiumlaufrad mit EC-Motor / high efficiency wheel made of aluminium with EC drive Seite / Page Bauform / Construction GKHR , GKHM , GKHS GKHR , GKHM , GKHS GKHR , GKHM , GKHS GKHR , GKHM , GKHS GKHR , GKHM , GKHS GKHR , GKHM , GKHS , GKHB GKHR , GKHM , GKHS , GKHB GKHR , GKHM , GKHB GKHR...
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Laufradtypen und Bauformen / Wheel Types and Constructions AC-Radialventilatoren / AC Centrifugal fans Kurzbeschreibung der Bauformen / Short Description of Constructions Motorlaufrad (Einstromduse als Zubehor) Motorized impeller (inlet cone as accessory) EKHM / DKHM Ventilatoreinbaumodul Bauform „Modul" Fan module
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Spannung / Voltage: Typ / Type: Motor / Motor: Spannung / Voltage: Typ / Type: Motor / Motor: Artikelnummern / Article numbers: Nr. No. Seite Page Schaltbild Wiring diagram Ausführung / Construction ohne Einströmdüse / without inlet cone inklusive Einströmdüse / inclusive inlet cone 3) Maßzeichnung auf Anfrage / dimensions on request 1)
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Spannung / Voltage: Typ / Type: Motor / Motor: Spannung / Voltage: Typ / Type: Motor / Motor: Artikelnummern / Article numbers: Nr. No. Seite Page Schaltbild Wiring diagram Ausführung / Construction ohne Einströmdüse / without inlet cone Maßzeichnung auf Anfrage / Dimensions on reques
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Spannung / Voltage: Typ / Type: Motor / Motor: Spannung / Voltage: Typ / Type: Motor / Motor: 3 ~ 380-480 V GKHR / GKHM / GKHS GD112 [5] Artikelnummern / Article numbers: Nr. No. Seite Page Schaltbild Wiring diagram Zubehör / Accessory: GKHR Ausführung / Construction ohne Einströmdüse / without inlet cone inklusive Einströmdüse mit Ringmeßleitung / inclusive inlet cone with circular lead 3) Einströmdüse ohne Ringmeßleitung / Inlet cone without circular lead 4) Einströmdüse mit Ringmeßleitung / Inlet cone with circular le
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