EC Axial Fans

Features of LONGWELL EC Motorized Axial Fan ( ECM ) :

Widely used in different kinds of applications - Ventilation ,Air conditioning ,Refrigeration system ,etc

All the components are designed for better solutions ;

Stable & High protection level to suitable for any application condition ;

Easy to install- Designed suitable for commaon industrial standards .

Small installation depth ,Higher power with much lower noise level and high efficiency ;

With a variety of interfaces , the operating status of the fan can be monitored in real time via Modbus RS485

Product Standards :

Technical Features of EC axial fans：

Other Type axial fans and Related exhaust fans：

Applications :

● Condensers

● Chillers, Cooling Units;

● Air-conditioning Fans;

● Exhaust Ventilation;

● Cold Storage.

● Cooling Tower

● Commercial Evaporator

● Transformer

● Exhaust wind wall

● Air - Source Heating pump

● Refrigeration System

● Oil cooling system

● Wind power and mechanical engineering

● Precision machining equipments industry

Company Introduction

R& D Capacity : More than 20 professional R&D team members ,all with more than 10 years of working experiences .

OEM Capacity :Based on our professional Mould factory of centrifugal fans ,Longwell support OEM ,ODM Solutions for EC backward centrifugal fans , EC plug fans which can be customized according to customer's requirements ;

Quality Control for EC fan series : 100% Stritly control the quality of Fans and have passed CE, RoHS ,ISO9001 ,IS0 14001 ,BSCI ,UL ,ETL Certifications .

LONGWELL ECM Technology for EC backward centrifugal fans is giving more energy saving to our world .The advantages are :

■ Our ECM motorized fans' effiency are 30%-60% higher than the traditional motors ;

■ The build-in PCBA achieved stepless speed control,and communication with customers products ;

■ longer life span up to 40,000hours ( for EC Fan Motor ) ;

■ IP44,45,55,IP68 ,can be customized ;

■ Sine wave ,three phase eliminate electromagnetic-acoustic and lots of other protection functions like soft start ,overload ,motor block … .

Benefits of EC Fans from Longwell :

■ high efficiency

■ long life span

■ compact design which can replace fans IEHL-ABEGG fan directly .

Approvals : UL ,ETL ,CCC

LONGWELL expects all our customers have their 100% satisfied solution in fans and motors .

FAQ

Q1. How to take advantage of the inherent EC features?

> Constant or variable Speed?

> Constant or variable Pressure?

> Constant or variable Volume?

> Integrated electronics?

> Remote control and monitoring?

You can choose our EC Motor Axial Fan options which are :

EC offers the opportunity to maximise total building performance like never before. EC products will do ：

more work, more efficiently, with better results, from smaller, lighter, quieter packages.

High static efficiency

– No adjustment effort as motor, electronics, and control from a single source

– Central plug-in area for power and control inputs

– Compact design through optimized cooling of power electronics

– No parameter setting required during start-up

– Safe separation between terminal area and electronics

Flexible open loop control

– Smoothly adjustable speed

– Control via 0–10 V / PWM and MODBUS-RTU

– Error message output

– Interface with SELV

Universally deployable

– For use with 50- and 60-Hz grids

– Extended voltage input 1 ~ 200 V – 277 V. 3 ~ 380v - 400V

Q2. Why the EC axial fan is much efficiency than AC axial flow fans ?

Reply :

Longwell EC-Motors (electronically commutated) are permanently magnetized synchronous motors designed as external rotor motors. A rectifier inside the electronics transforms the alternating current (AC) voltage into direct current (DC) voltage. Depending on the position of the rotor, the EC electronics provide the corresponding motor voltage to the motor (similar to a frequency converter). Permanent magnets inside the rotor create a magnetic field, which is required to generate the torque. This makes it possible to achieve highly efficient, compact, quiet continuous speed control.

● Integrated control (EC-Controller)

● Continuously controllable or adjustable

● Low installation depth

● Can be installed in any position

● Blades made of aluminium plate

● Improved acoustic performance due to an optimized blade-design

Q3. Life span of LONGWELL ec axial fan ?

Reply :

Longwell EC external rotor motor surpasses efficiency class IE4, magnets with no rare earths, maintenance-free ball bearings (sealed) with long-term lubrication, theoretical nominal service life of at least 40,000 hours of operation, installation with horizontal and vertical motor shaft; soft start, integrated current limitation. Integrated electronics, quiet commutation logic; 100 % speed controllable; control signal 0-10 V DC / PWM; tach output.

Longwell as a known and trustworthy DC cross flow fan Supplier in China , we assure you the best product quality and service.

If you are looking for AC and EC axial fans ,cooling fans for your manufacturing applications or electronic devices, do go through the features and specifications of our various models of axial fans and centrifugal fans. In case you require any further information or have technical queries, you can contact us on phone or email at :

Email : bruce@zjlongwell.com

Direct- Phone : 0086 18358274663

We are looking forward to develop a good relationship with you .

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