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RLMEVO

Product catalog summary

Introduction
The RLMEVO series by Nicotra Gebhardt represents a new generation of high-performance plug fans, featuring advanced impeller technology with true airfoil blades. This series is designed to enhance efficiency, reduce turbulence, and lower energy consumption, costs, and noise levels.

Key Features

Efficiency: The Evo series surpasses the EU's ErP directive requirements for 2015, achieving exceptional system efficiency.
Innovative Design: Optimized impeller and blade shapes enhance aerodynamics, minimizing pressure and turbulence losses.
Motor Technology: Utilizes brushless DC motors for reduced energy consumption and lower noise, especially under partial loads.
Integration and Maintenance: Maintains the same dimensions as previous models for easy integration and is practically maintenance-free due to its construction and direct drive.

Technical Specifications

Type Code: Includes motor size, motor type, number of poles, impeller diameter, and other specifications.
Performance: Offers high static efficiency and low sound power levels, with performance charts for various models.
Dimensions: Detailed dimensions and technical data are provided, with recommendations for inverter use.

Performance Charts
Performance charts compare system efficiencies of different motor types, measured according to ISO 5801 standards, highlighting recommended operation areas and efficiency levels.

Conclusion
The RLMEVO series sets a new standard in plug fan technology, offering significant improvements in efficiency, noise reduction, and ease of integration, making it a leading choice for modern industrial applications.

Technical Specifications:
Detailed specifications for various fan models, including power, voltage, frequency, speed, torque, and weight. Efficiency classes for motors are specified, with asynchronous motors classified as IE2 and brushless DC motors as IE3 or higher.

Performance and Efficiency:
Performance charts compare system efficiencies for impellers, motors, and inverters, measured according to ISO 5801. Highlights include overall static efficiency and fan shaft static efficiency.

Technical Data and Dimensions:
Technical data tables provide dimensions in millimeters and detail the fan type codes. Recommends using Danfoss VLT HVAC Drive FC-100 for motors operating with inverters.

ErP Regulation Compliance:
Includes technical data according to ErP-REGULATION 327/2011/EU, emphasizing optimal energy efficiency and providing information on recycling and disposal.

Additional Information:
Discusses additional components and overall efficiency, focusing on high efficiency grades. Provides information on installation, operation, and maintenance, as well as manufacturer details and year of manufacture.

Specifications:
Details the RLM Evo plug fan with direct drive, featuring a high-performance impeller with six backward-curved aerofoil blades, a co-rotating radial diffuser, and a system inlet cone with a flow measuring device.

Procedures:
Installation and maintenance instructions are provided, with recommendations for anti-vibration mounts to prevent noise and vibrations.

Standards and Norms:
Performance curves are determined according to ISO 5801, and sound measurements follow DIN 45635-38 standards. Impeller performance data adheres to DIN 24166 precision class 1.

Recommendations:
For optimal performance, ensure the fan is connected via a flexible coupling. Advises on the use of anti-vibration mounts and provides guidelines for installation in enclosures to minimize pressure loss.

Performance Data:
Includes detailed performance data, sound power levels, and efficiency calculations, with correction factors for installation in enclosures.

Key Data from Tables and Diagrams:
Tables provide calibration factors for flow measurement and sound power levels at various frequencies. Diagrams illustrate the correction of design for installation in enclosures and the calculation of pressure loss.

Catalog excerpts

High Performance Plug Fans Impeller with true airfoil blades

Open the catalog to page 1

RLMEVO Ready for the next generation We have accelerated impeller technology with the RLM Evo series, the new generation in our plug fan range. The result: More efficiency and reduced turbulent conditions. And that is highly effective as the Evo series ensures: A ower energy consumption l A ower costs l A ower noise levels l Overall static efficiency Nicotra Gebhardt – the professionals in profiling Nicotra Gebhardt is the first port of call for profiled impeller blades. We brought the first hollow section airfoil blades onto the market in 1975. Since then we have been achieving the absolutely...

Open the catalog to page 2

RLMEVO The evolutionary elements A he perfect profile T At the heart of the Evo series are the six blades with rounded inclined leading edges and re-designed hollow profile. They ensure minimised turbulence conditions in the impeller thus enabling the extraordinary high efficiency of the fan. Due to their special shape, the blades build up pressure evenly at all sections. The result: Air circulates around the blades better and the turbulence tends to dissipate. This increases not only efficiency but also causes significantly lower noise. A he innovative high performance impeller T The re-designed...

Open the catalog to page 3

RLM E6-2528 r1=1.20 kg/m³ Please note coloured area! — Asynchronous motors — Permanent magnet motors Measured in installation A a ccording to ISO 5801: recommended operation area System efficiencies Comparison system efficiencies hse (impeller, motor, inverter) RLM E6-2528- Formula symbols hse = verall static efficiency (impeller, motor, inverter) o hsa = an shaft static efficiency f LWA6 = -weighted sound power level at discharge A Pa = an shaft po

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RLM E6-2528 Technical Data Fan type RLM Evo Mains Nominal frequency speed Hz 1/min Nominal Nominal moment current Nm A max. operating max. frequency speed Hz 1/min Motor size Poles ** * otor for operation with inverter only (No mains operation). M We recommend: Danfoss VLT HVAC Drive FC-100. Fan type code W = synchronous motor according to efficiency class IE2 (High Efficiency) A BI = rushless DC motor with integrated control unit (efficiency class IE3 and higher) B BE = rushless DC motor with external control unit (efficiency class IE3 and higher) B Dimensions in mm, subject to change. RLM E6-2528-2_RLM...

Open the catalog to page 5

RLM E6-2831 r1=1.20 kg/m³ Please note coloured area! — Asynchronous motors — Permanent magnet motors Measured in installation A a ccording to ISO 5801: recommended operation area System efficiencies Comparison system efficiencies hse (impeller, motor, inverter) RLM E6-2831- Formula symbols o hse = verall static efficiency (impeller, motor, inverter) hsa = an shaft static efficiency f LWA6 = -weighted sound power level at discharge A Pa = an shaft po

Open the catalog to page 6

RLM E6-2831 Technical Data Fan type RLM Evo Mains Nominal frequency speed Hz 1/min Nominal Nominal moment current Nm A max. operating max. frequency speed Hz 1/min Motor size Poles ** * otor for operation with inverter only (No mains operation). M We recommend: Danfoss VLT HVAC Drive FC-100. Fan type code W = synchronous motor according to efficiency class IE2 (High Efficiency) A BI = rushless DC motor with integrated control unit (efficiency class IE3 and higher) B BE = rushless DC motor with external control unit (efficiency class IE3 and higher) B Dimensions in mm, subject to change. RLM E6-2831-2_RLM...

Open the catalog to page 7

RLM E6-3135 r1=1.20 kg/m³ Please note coloured area! — Asynchronous motors — Permanent magnet motors Measured in installation A a ccording to ISO 5801: recommended operation area System efficiencies Comparison system efficiencies hse (impeller, motor, inverter) RLM E6-3135- Formula symbols = verall static efficiency (impeller, motor, inverter) o = an shaft static efficiency f sa LWA6 = -weighted sound power level at discharge A Pa = an shaft power f s

Open the catalog to page 8

RLM E6-3135 Technical Data Fan type RLM Evo Mains Nominal frequency speed Hz 1/min Nominal Nominal moment current Nm A max. operating max. frequency speed Hz 1/min Motor size Poles ** * otor for operation with inverter only (No mains operation). M We recommend: Danfoss VLT HVAC Drive FC-100. Fan type code W = synchronous motor according to efficiency class IE2 (High Efficiency) A BI = rushless DC motor with integrated control unit (efficiency class IE3 and higher) B BE = rushless DC motor with external control unit (efficiency class IE3 and higher) B Dimensions in mm, subject to change. RLM E6-3135-2WRLM...

Open the catalog to page 9

RLM E6-3540 r1=1.20 kg/m³ Please note coloured area! — Asynchronous motors — Permanent magnet motors Measured in installation A a ccording to ISO 5801: recommended operation area System efficiencies Comparison system efficiencies hse (impeller, motor, inverter) RLM E6-3540- Formula symbols hse = verall static efficiency (impeller, motor, inverter) o hsa = an shaft static efficiency f LWA6 = -weighted sound power level at discharge A Pa = an shaft po

Open the catalog to page 10

RLM E6-3540 Technical Data Fan type RLM Evo Mains Nominal frequency speed Hz 1/min Nominal Nominal moment current Nm A max. operating max. frequency speed Hz 1/min Motor size Poles ** * otor for operation with inverter only (No mains operation). M We recommend: Danfoss VLT HVAC Drive FC-100. Fan type code W = synchronous motor according to efficiency class IE2 (High Efficiency) A BI = rushless DC motor with integrated control unit (efficiency class IE3 and higher) B BE = rushless DC motor with external control unit (efficiency class IE3 and higher) B Dimensions in mm, subject to change. RLM E6-3540-2WRLM...

Open the catalog to page 11

RLM E6-4045 r1=1.20 kg/m³ Please note coloured area! — Asynchronous motors — Permanent magnet motors Measured in installation A a ccording to ISO 5801: recommended operation area System efficiencies Comparison system efficiencies hse (impeller, motor, inverter) RLM E6-4045- Formula symbols hse = verall static efficiency (impeller, motor, inverter) o hsa = an shaft static efficiency f LWA6 = -weighted sound power level at discharge A Pa = an shaft po

Open the catalog to page 12

All Nicotra Gebhardt 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.

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