DDMP

DDMP
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DDMP

Product catalog summary
Introduction
The document presents the 2021 edition of Nicotra Gebhardt's DDMP catalogue, featuring compact and efficient single-phase fans available in 1kW and 2kW models. These fans are designed for high aerodynamic efficiency, incorporating energy-efficient EC technology and smart motor controllers.
Specifications
The DDMP fans are forward-curved, direct-driven with permanent-magnet motors, offering a compact design and low noise levels. They comply with the European ErP Directive for energy efficiency and are suitable for acoustically critical installations. The fans feature an external-rotor permanent-magnet motor integrated into the impeller hub, supported by streamlined brackets with vibration dampers. The scroll cases are made of galvanized steel, assembled using a patented cold-rolling process to prevent corrosion and vibration.
Design and Efficiency
The fans have a highly efficient scroll and impeller design, minimizing motor interference. They are engineered for fast installation and reduced lifecycle costs, with a plug-and-play setup and minimal maintenance requirements. The fans incorporate active power factor control to maintain optimal power factor and minimize harmonic distortion, complying with Regulation 327/11/EC.
Performance and Control
DDMP fans offer continuous speed control via analogue input or Modbus interface, with advanced protection features to prevent overloading and overheating. They are designed to meet industrial environment standards and provide harmonics filtering for data centers. Performance data is tested according to ISO 5801:2007 standards.
Operating Modes
Various operating modes are available, including asynchronous emulation and PID control, allowing for precise fan speed and volume adjustments. The fans can operate in parallel configurations with master-slave arrangements to prevent system instability.
Product Range
The catalogue lists multiple DDMP models with varying specifications, including size, power, and pressure capabilities. The range extends to smaller fans with a power input of 220W, maintaining high efficiency while simplifying design to reduce costs.
Installation and Accessories
Accessories such as mounting feet and other components are available to simplify installation. Detailed information on disassembly, recycling, and maintenance is available on the manufacturer's website.
Technical Data
The fan operates at a voltage of 220-240V, with a frequency of 50-60 Hz. It has a maximum power input of 1065 W and a current max of 4.59 A. The fan's protection class is IP 54, with an insulation class of F, and it operates within a temperature range of -20°C to +40°C.
Performance Charts
The document includes performance curves and data tables showing flow rate, static pressure, total efficiency, and power consumption at various speeds and conditions.
3-Phase Models Introduction
The document introduces new 3-phase external-rotor drive systems for DDMP fans, with input power up to 2.6 kW, expanding to higher torque motors and power up to 4.0 kW.
3-Phase Specifications
The 3-phase DDMP fans feature a direct-driven double-inlet double-width backward-curved fan with an integrated high-efficiency drive system. They operate with any power network at 50 or 60 Hz frequency, in the 400V +/- 10% voltage range.
Smart EC 3-Phase Motor Controllers
The new motor controllers have a nominal maximum input power of 2.6 kW, comply with EMC requirements for class C2 of power-drive systems, and are designed with sensorless technology for increased reliability.
Advanced Operating Modes and Software
The 3-phase smart drivers offer advanced operating modes, including autonomous constant-volume operation. The new "Fan Configurator" software supports these drivers, providing comprehensive monitoring and configuration capabilities.
Extended Analogue Interface
The new drivers provide alarm signals via an electromechanical relay and digital output, suitable for integration with electromechanical control systems.
Performance and Compliance
The fans comply with various EMC standards and are designed for industrial environments. They include passive EMC filters to optimize power factor and reduce harmonic distortion.
Part Number Transition
The document notes a transition from 6-7 character part numbers to a new 16-character structured coding system for better identification of DDMP fans.
Conclusion
The DDMP range offers a versatile and efficient solution for space-constrained and acoustically sensitive applications, with advanced control features and compliance with energy efficiency standards.
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Catalog excerpts

DDMP-1

DDMP Catalogue Package: assembled 2021-03-25 DDMP 1-Ph Catalogue Ed.3.0 - 2021-03-25 DDMP 3-Ph Catalogue Ed.2.0 - 2021-03-24 DDMP Small-Metric Catalogue Ed.2.0 - 2021-03-24

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DDMP-2

Time is money with the new DDMP you save year after year Low-Noise Solution In addition to their compact design, forward-curved fans are better suited where fan noise is critical. The sound power generated by forward-curved fans is mostly made up by medium and high-frequency noise, providing better sound quality at source, and easier attenuation with acoustic linings The DDM range from Nicotra Gebhardt brought the aerodynamic efficiency of the double-inlet, forward-curved direct-driven fan to an unprecedented optimum, thanks to the combination of the highly-efficient scroll and impeller design...

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DDMP-3

life-cycle cost of a fan: gration within double-inlet fans. the DDMP fan is engineered for fast-rate The use of high intensity neodymium magnets allows both an Installation cost: the one-piece functional unit does not need conection permanent-magnet motors using ferrites, and a reduction in size. Thanks to this revolutionary choice, and to a careful design, the its basic operation mode: it’s a plug-and-play drop-in unit; The increased compactness of these new motors leads to a new streamlined motor shape design, further reducing computer program and a connection cable, providing variants of the...

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DDMP-4

currently two single-phase units, of either 1 kW or 2 kW nominal input power, both incorporating an advanced active input stage, providing power factor control (power factor is continuously adjusted to unity). This control mode can compensate a change of the pressure-loss in the air system, e.g. choosing a ventilation unit, or because some filter clogging occurs during the operation of the system. This design also provide harmonics filtering to guarantee requirements for harmonic distortion which apply to data centres. systems, according to EN 61800-3, throughout the range of A. can be set via...

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DDMP-5

Also in speed-control modes, the target speed value can be provided by Modbus, either on a permanent Eprom register, Another group of selectable operating modes is providing PID control using the analogue input channel for the measurement of a status variable with an Including the analogue-input speed-control mode, which is set up as factory default, the speed control modes are available desired value by adjustment of the fan speed and volume. As the analogue input channel is needed for the signal Those customers using the fan in a simple for the PID must be set via the Modbus interface, either...

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DDMP-8

The DDMP range has a downward extension, to relatively tiny fans, of sizes of 146 mm or less, with power input limited to 220 W, single-phase. These fans retain the high operating efficiency of their larger and more powerful relatives, but have been simplified to reduce their cost. The driver is provided with a passive EMC filter, very effective but much simpler than the active unit adopted on the 1 kW and 2 kW units. On these fans there is no Modbus interface, and the operating mode is limited to a simple speed control, with the fan speed proportional to the analogue input voltage (0-10 Vdc or...

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DDMP-9

Besides the basic DDMP fan, Nicotra Gebhardt can supply a number of accessories, which may significantly simplify the fan installation: mounting feet, suitable for fastening to the scroll side-plates, 13857 and many others. A complete list can be found inside the special catalogue dedicated to the accessories for ATDD-DDM and DDMP fans, freely available from the download area of the Nicotra-Gebhardt website.

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DDMP-10

Type: DDMP 7/7 T 1kW 1Ph Motor: 1416A3+1431A5 Power: Poles: Voltage: Supply: Frequency: Capacitor: Protection Cl.: Insulation Cl.: Thermal prot.: Temp. Min: Temp. Max: Current Max: Performance data referring to: Standard air density = 1.20 kg / m3 Installation type "B": free inlet, ducted outlet Sound Power Levels shown are Inlet-side LWA(B,in+cas), A-weighted, in dBA Integral speed-control by On-board Driver 1431A5 Constant flow range 1300 Total Efficiency Flow rate [m3/h] Test nr.: Performance referred to the best efficiency duty point Compl. with Reg. 327/11/EC: Tier II (2015) Overall Efficiency...

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DDMP-11

WIRING DIAGRAM NOISE DATA DIMENSIONAL DRAWINGS 6DA003JZZ0000000 - DDMP 7/7 T M6A3 DA5

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DDMP-12

Type: DDMP 7/7 1kW 1Ph Motor: 1416A0+1431A5 Power: Poles: Voltage: Supply: Frequency: Capacitor: Protection Cl.: Insulation Cl.: Thermal prot.: Temp. Min: Temp. Max: Current Max: Performance data referring to: Standard air density = 1.20 kg / m3 Installation type "B": free inlet, ducted outlet Sound Power Levels shown are Inlet-side LWA(B,in+cas), A-weighted, in dBA Integral speed-control by On-board Driver 1431A5 Constant flow range Total Efficiency Flow rate [m3/h] Test nr.: Performance referred to the best efficiency duty point Compl. with Reg. 327/11/EC: Tier II (2015) Overall Efficiency...

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DDMP-13

WIRING DIAGRAM NOISE DATA

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DDMP-14

Type: DDMP 7/9 1kW 1Ph Motor: 1416A1+1431A5 Power: Poles: Voltage: Supply: Frequency: Capacitor: Protection Cl.: Insulation Cl.: Thermal prot.: Temp. Min: Temp. Max: Current Max: Performance data referring to: Standard air density = 1.20 kg / m3 Installation type "B": free inlet, ducted outlet Sound Power Levels shown are Inlet-side LWA(B,in+cas), A-weighted, in dBA Integral speed-control by On-board Driver 1431A5 Constant flow range 550 Total Efficiency Flow rate [m3/h] Test nr.: Performance referred to the best efficiency duty point Compl. with Reg. 327/11/EC: Tier II (2015) Overall Efficiency...

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DDMP-15

WIRING DIAGRAM NOISE DATA

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DDMP-16

Type: DDMP 8/7 T 1kW 1Ph Motor: 1416A0+1431A5 Power: Poles: Voltage: Supply: Frequency: Capacitor: Protection Cl.: Insulation Cl.: Thermal prot.: Temp. Min: Temp. Max: Current Max: Performance data referring to: Standard air density = 1.20 kg / m3 Installation type "B": free inlet, ducted outlet Sound Power Levels shown are Inlet-side LWA(B,in+cas), A-weighted, in dBA Integral speed-control by On-board Driver 1431A5 Constant flow range 900 Total Efficiency Flow rate [m3/h] Test nr.: Performance referred to the best efficiency duty point Compl. with Reg. 327/11/EC: Tier II (2015) Overall Efficiency...

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*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.