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Centrifugal fans with free running impellers

Centrifugal fans with free running impellers
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Centrifugal fans with free running impellers

Product catalog summary
Overview: The document outlines technical specifications and configurations for various motorized impellers and fan modules, including models such as RRE, RRM, EKHM, DKHM, GKHR, GKHM, GKHS, and GKHB. It details voltage requirements, motor types, and accessories like inlet cones.
Specifications: Different models are listed with their voltage requirements, motor types, and article numbers. For instance, RRE/RRM models operate on 1~200-240 V, while GKHR/GKHM/GKHS models offer options for 1~200-277 V and 3~380-480 V.
Accessories: Inlet cones are available, with some models including them as standard. The document specifies whether the inlet cone is included or available upon request.
Performance Data: Performance graphs show pressure versus airflow for different models, indicating operational capabilities.
Construction Types: Descriptions of various construction types, such as motorized impellers, fan modules, and spider constructions, are provided.
Key Models: - RRE/RRM: Motorized impellers with optional inlet cones. - GKHR/GKHM/GKHS: EC centrifugal fans with free-running impellers and external rotor motors. - EKHR/DKHR: Fan modules with various motor options and configurations.
Wiring Diagrams: Specific wiring diagrams are associated with each model for installation and configuration purposes.
Specifications:
1. Input Signal: 0-10V DC with permissible input up to 11V and input resistance of 130kΩ. PWM frequency should be ≥ 500 Hz with an amplitude of 10V.
2. Power Supply: Various voltage types including 1~200-277V, 3~380-480V, and 3~400V with frequency 50/60 Hz. Short circuit protection is provided.
3. Output: Open collector outputs for tacho and alarm with maximum 15V and 20mA.
4. Control Modes: Open-loop and closed-loop control modes available, switchable via RS 485 interface.
Procedures:
1. Operation Mode Switching: Requires reconfiguration of motor parameters via RS 485 interface.
2. Speed Control: Can be controlled by external potentiometer or DDC.
3. Constant Air Flow Control: Achieved through differential pressure measurement at the inlet cone.
Standards and Recommendations:
1. Wiring: No parallel wiring allowed for power supply outputs.
2. Protection: Short circuit protection is provided for power outputs, with specific duration limits.
3. Application Examples: Include temperature control and constant pressure control in ventilation systems.
Electrical Accessories:
1. Potentiometers: Available for manual set point adjustment, with protection ratings of IP54.
2. Temperature Sensors: Compatible with KTF Pt1000, offering heating/cooling indication.
Special Voltages: Details on various fan models with specific voltage, frequency, power, and speed ratings for 60Hz applications.
Technical Specifications:
Detailed specifications for various fan types, including dimensions, electrical characteristics, and performance data. Features include mounting in all positions, backward curved high-efficiency impellers, and compact design.
Fan Types and Specifications:
- Fan Type RRE: Models like 2RRE(u)15, 2RRE(u)25, and 2RRE25 with specifications including voltage, frequency, power, current, speed, capacitance, temperature ratings, and weight.
- Fan Type DKH: Models like DKH_250-2_B.071.4FF and DKH_280-2_B.090.5FA with three-phase single-speed motors and thermostatic switches.
Wiring Diagrams: Includes wiring diagrams for fans, indicating connections for components like U1, U2, V1, V2, W1, W2, and PE.
Sound Levels: Sound levels for different frequencies, with data on both inlet and outlet sides. A-weighted sound levels at half maximum volume are specified.
Performance Curves: Air performance curves show relationships between airflow, pressure, and sound levels, aiding in understanding fan efficiency under different conditions.
Additional Features: Calibration factors and noise reduction data are included. Information on changing rotation direction by interchanging two phases for three-phase motors is provided.
Installation and Design: Fans are designed for easy installation in various positions, focusing on efficiency and space-saving. The backward curved impeller design enhances performance and reduces noise.
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Catalog excerpts

Centrifugal fans with free running impellers-1

Centrifugal fans with free running impeller

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Centrifugal fans with free running impellers-2

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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Centrifugal fans with free running impellers-3

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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Centrifugal fans with free running impellers-5

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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Centrifugal fans with free running impellers-7

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 Laufrad / Wheel Kunststofflaufrad mit AC-Motor / wheel made of plastic with AC drive Kompakt-Hochleistungsstahllaufrad mit AC-Motor / compact high efficiency wheel made of steel with AC drive Hochleistungsaluminiumlaufrad mit AC-Motor / high efficiency wheel made of aluminium with AC drive Seite / Page Baugröße / Size Bauform / Construction DKHR , DKHM DKHR , DKHM EKHR / DKHR , EKHM / DKHM EKHR / DKHR , EKHM / DKHM EKHR / DKHR , EKHM / DKHM EKHR / DKHR , EKHM / DKHM EKHR / DKHR , EKHM / DKHM...

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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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Centrifugal fans with free running impellers-11

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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Centrifugal fans with free running impellers-12

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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