Application engineering note

EC centrifugal fans can be assessed for data center air-handling units where the design requires controlled airflow through coils, filters and the discharge path. The enquiry needs the equipment operating points and interfaces before a particular fan can be selected.
Choose a documented fan configuration
LONGWELL’s LWBE family uses backward-curved centrifugal impellers and includes EC motor configurations. Its plug-fan form is intended for integration with an air-handling enclosure. The motor’s electronic drive and the fan’s mechanical arrangement should be specified together.
Provide the required airflow and static pressure for each cooling mode, with the coil and filter conditions used in the calculation. Where several fans operate in one unit, include their layout and the required sequence when an individual fan is stopped or removed for service.
Confirm electrical and mechanical interfaces
Use the exact model’s wiring and control specification to identify mains input, speed command and status connections. State the expected response to a lost control signal and the available controller interfaces.
The mounting review should include inlet geometry, fixing points, cable routing and fan removal space. Confirm the airflow and thermal acceptance checks for the complete cooling equipment during the design review. These define what the assembled system needs to demonstrate under its intended operating conditions.
Discuss your fan requirement
Send LONGWELL your airflow and pressure duty point, power supply, available installation space, control requirements, operating environment and drawings. Contact our engineering team to discuss a suitable configuration.









