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Rosenberg Ventilatoren
Axial fans for cooling AKFG / AKFD

Axial fans for cooling AKFG / AKFD

Product catalog summary

Technical Description
The document provides a detailed overview of axial fans used in cooling and air handling applications. It emphasizes the use of sickle-shaped, profiled aluminum impellers for optimal noise reduction and performance. The fans are equipped with EC motors known for high efficiency and easy integration of additional functions like pressure and volume control. AC motors are also used, featuring speed control and thermal protection.

Warranty and Safety
The warranty covers faulty products but excludes claims arising from improper use, installation, or maintenance. The fans comply with EC directives and are marked with a CE label. Safety assessments follow VDMA standards and European norms.

Fan Selection and Performance
Key factors for selecting a fan include air volume, size, static pressure, and noise characteristics. Performance curves are tested according to DIN standards, and noise levels are measured in a controlled environment.

Technical Data and Specifications
The document includes detailed technical data for various fan sizes and configurations, including dimensions, motor types, and performance curves. It also provides guidelines for fan selection based on specific operational requirements.

Overview of EC Axial Fans
The document provides technical specifications and features of various EC Axial Fans for cooling, specifically the AKFG and AKFD types. These fans are designed for energy efficiency and noise reduction, with integrated control systems and specific construction features.

Specifications

EC Axial Fan Type AKFG: Available in sizes 710, 800, 900, and 1000. Features include sickle-shaped axial blades, cast aluminum construction, integrated EC controller, protection class IP54, and thermal class F. Energy savings compared to AC types range from 27% to 50%.
Axial Fan Type AKFD: Available in sizes 560 and 630. Features include sickle-shaped axial blades, cast aluminum construction, asynchronous external rotor motor, protection class IP54, and thermal class F. The design allows for terminal box or cable lead-out configurations.

Technical Data

Each fan type includes detailed specifications such as power consumption (P1), current (IN), speed (n), and sound levels (LWA5) across various frequencies.
Performance data is provided in terms of airflow (V[m3/h] and V[C.F.M.]) and pressure (pfa [Pa] and [in.WG]).

Noise and Energy Efficiency

The fans are designed to offer a favorable noise spectrum, with specific dB(A) levels provided for different frequencies.
Energy savings are highlighted, with specific percentages indicating the efficiency improvements over traditional AC fan types.

Construction and Design

The fans feature a robust construction with options for different airflow directions and mounting configurations.
Protection and thermal classes ensure durability and reliability in various operating conditions.

Overview of External Rotor Motors
The document provides technical specifications and data for various models of external rotor motors, specifically axial fans for cooling, under the AKFD series. These fans are characterized by their sickle-shaped axial blades made of cast aluminum, asynchronous external rotor motors, and a protection class of IP54 with a thermal class of F.

Specifications

Protection Class: IP54
Thermal Class: F
Design Options: Terminal box design or cable lead out

Technical Data The document includes detailed technical data for different models, such as:

AKFD 800-8-8 G.6HF: Power input (P1) of 0.76/0.56 kW, current (IN) of 1.7/1.05 A, and speed (n) of 700/550 min-1.
AKFD 900-6-6 G.6LA: Power input (P1) of 2.1/1.2 kW, current (IN) of 3.95/2.1 A, and speed (n) of 830/630 min-1.
AKFD 1000-12-12 G.6HF: Power input (P1) of 0.46/0.22 kW, current (IN) of 1.1/0.5 A, and speed (n) of 415/220 min-1.

Sound Levels The document provides sound level data for each model, measured in dB(A) at various frequencies (125 Hz to 8K Hz), indicating a favorable noise spectrum due to the blade design.

Construction and Air Flow The construction details and air flow directions are specified for each model, with options for different construction forms and air flow directions (A V).

Key Features

Favorable noise spectrum due to sickle-shaped axial blades.
Blades made of cast aluminum for durability.
Asynchronous external rotor motor for efficient performance.

Catalog excerpts

AXIALVENTILATOREN für die Kälte- und Klimatechnik AXIAL FANS for cooling and air handling AKFG / AKFD Rosenberg Ventilatoren GmbH Maybachstr. 1/9 D-74653 Künzelsau-Gaisbach Fon +49 (0)7940 / 142-0 Fax +49 (0)7940 / 142-125 www.rosenberg-gmbh.com [email protected]

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Sicherheit und Gewährleistung / Safety and Warranty Gewährleistungsbestimmungen Warranty Guidelines Für die Auswahl, Auslegung und den Einsatz der Ventilatoren ist der Käufer verantwortlich. Für Sach- und Rechtsmängel der Lieferung leistet der Lieferer unter Ausschluss weiterer Ansprüche - vorbehaltlich Abschnitt VII der gültigen Allgemeinen Geschäftsbedingungen (AGB) - Gewähr. The customer is responsible for the project design, selection and operation of the fans. The supplier gives warranty for faulty products, excluding further claims, in accordance with paragraph VII of the valid terms and...

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Inhalt / Content Technische Beschreibung Technical description Motoren Traggitter Eintrömdüse Messverfahren für Luftleistungskennlinien Geräuschmessung Motors Guard Inlet cone Measuring method for performance curves Noise level measurements Type Code Ventilatorauswahl Kennliniendarstellung Fan selection Performance curves diagram Technische Daten Technical data Baugröße 630 (EC) Baugröße 710 (EC) Baugröße 800 (EC) Baugröße 900 (EC) Baugröße 1000 (EC) Size 630 (EC) Size 710 (EC) Size 800 (EC) Size 900 (EC) Size 1000 (EC) Baugröße 560 (50 Hz) Baugröße 630 (50 Hz) Baugröße 710 (50 Hz) Baugröße 800...

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Technische Beschreibung / Technical description Anwendungsgebiete Luftheizgeräte, Wärmepumpen, Kondensatoren, Kühler, Verdampfer und Kaltwassersätze Applications Air heaters, Heat pumps, Condensers, Cooling units, Evaporators and Chillers Eigenschaften des Ventilators Die sichelartig geformten profilierten Aluminium-Druckgußflügel bewirken ein sehr günstiges Geräuschspektrum. Wert wurde vor allem auf eine niedrige Geräuschemission im Haupteinsatzbereich des Ventilators bei gleichzeitig möglichst optimalem Kennlinienverlauf in Volldüse und in der Kurzdüse gelegt. Features of the fan The sickle...

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Technische Beschreibung / Technical description G AK F D 560 -4(-4) G. 6FA A 1 Typenschlüssel / Type Code Axialventilator Kältetechnik / axial fan for cooling systems Baureihe / product range Drehstrom / three phase alternating current EC-Motor / EC motor Baugröße (Flügeldurchmesser in mm) / size (diameter of impeller in mm) -4-4 Polzahl / number of poles G kleiner Flügelwinkel / less angle of impeller K mittlerer Flügelwinkel / medium angle of impeller N großer Flügelwinkel / larger angle of impeller 6FA Motortyp / motor type A A=Klemmkasten ; B=Kabel seitlich / A=terminal box ; B=cable lead...

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EC-Kälteaxialventilator Typ AKFG / EC Axial Fan for cooling type AKFG Baugröße / Size: 630 • sehr günstiges Geräuschspektrum durch sichelartig geformte Axialflügelblätter • profilierte Alumimium-Druckgußflügel • integrierte Regelung (EC-Controller) • Schutzart IP54 ; Wärmeklasse F • Klemmkastenausführung • very favourable noise spectrum due to sickle shaped axial blades • shaped blades made of cast aluminium • integrated control system (EC Controller) • protection class IP54 ; thermal class F • terminal box design Energieeinsparung gegenüber dem AC Typ bis zu: / Energy saving rate according to...

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EC-Kälteaxialventilator Typ AKFG / EC Axial Fan for cooling type AKFG Baugröße / Size: 710 • sehr günstiges Geräuschspektrum durch sichelartig geformte Axialflügelblätter • profilierte Alumimium-Druckgußflügel • integrierte Regelung (EC-Controller) • Schutzart IP54 ; Wärmeklasse F • Klemmkastenausführung • very favourable noise spectrum due to sickle shaped axial blades • shaped blades made of cast aluminium • integrated control system (EC Controller) • protection class IP54 ; thermal class F • terminal box design Energieeinsparung gegenüber dem AC Typ bis zu: / Energy saving rate according to...

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EC-Kälteaxialventilator Typ AKFG / EC Axial Fan for cooling type AKFG Baugröße / Size: 800 • sehr günstiges Geräuschspektrum durch sichelartig geformte Axialflügelblätter • profilierte Alumimium-Druckgußflügel • integrierte Regelung (EC-Controller) • Schutzart IP54 ; Wärmeklasse F • Klemmkastenausführung • very favourable noise spectrum due to sickle shaped axial blades • shaped blades made of cast aluminium • integrated control system (EC Controller) • protection class IP54 ; thermal class F • terminal box design Energieeinsparung gegenüber dem AC Typ bis zu: / Energy saving rate according to...

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EC-Kälteaxialventilator Typ AKFG / EC Axial Fan for cooling type AKFG Baugröße / Size: 900 • sehr günstiges Geräuschspektrum durch sichelartig geformte Axialflügelblätter • profilierte Alumimium-Druckgußflügel • integrierte Regelung (EC-Controller) • Schutzart IP54 ; Wärmeklasse F • Klemmkastenausführung • very favourable noise spectrum due to sickle shaped axial blades • shaped blades made of cast aluminium • integrated control system (EC Controller) • protection class IP54 ; thermal class F • terminal box design Energieeinsparung gegenüber dem AC Typ bis zu: / Energy saving rate according to...

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