Home » Longwell DD10-10I-014: AC Double Inlet Centrifugal Fan for HVAC

Longwell DD10-10I-014: AC Double Inlet Centrifugal Fan for HVAC

Optimizing HVAC Air Handling with Longwell DD10-10I-014 AC Double Inlet Centrifugal Fans

Longwell’s DD10-10I-014 AC double inlet centrifugal fan delivers consistent performance for demanding HVAC applications. Engineered for robust system integration, this fan is designed to provide stable airflow and pressure in air handling units (AHUs), ventilation systems, and other industrial air movement solutions. The unit’s precise engineering ensures operational reliability and efficiency, critical for minimizing system downtime and energy consumption.

Key Technical Specifications and Features

The DD10-10I-014 model features a directly driven AC motor, ensuring a compact footprint and reliable mechanical integrity. Its construction emphasizes durability and consistent performance across various operational parameters. The unit is developed to meet stringent quality requirements, including low vibration and sound emission during high-speed operation.

Motor Type: AC Motor, Direct Drive
Robust Design: Constructed for heavy-duty applications, ensuring extended operational life.
Protection Class: IP54, providing protection against dust ingress and splashing water.
Insulation Class: CL.F, indicating high-temperature resistance for motor windings.
Quality Assurance: Manufactured to minimize radial runout to less than 1.2mm and axial runout less than 1.0mm, with residual imbalance below 150mg.

Performance Parameters

Engineers can reference the following performance data for system design and integration:

Parameter	Value	Unit
Nominal Voltage	380	V
Frequency	50	Hz
Rated Speed	1440	r/min
Current	3 ±10%	A
Power Input	750 (approx. 1 HP)	W
Insulation Class	CL.F	–
Protection Type	IP54	–

Mechanical Integration Details

The DD10-10I-014 is engineered for straightforward integration into existing and new HVAC systems. Critical dimensions facilitate precise mechanical fitment and ductwork connection.

Overall Length: 391 mm
Overall Width: 357 ±1 mm
Overall Height: 334 mm
Housing Length: 292 mm
Housing Width: 272 mm
Housing Height: 223 mm

Detailed mechanical drawings and technical specifications are available for download:

Download DD10-10I-014 Technical Specification (PDF)

Application Suitability

This centrifugal fan is suitable for a range of applications requiring consistent air movement and pressure development, including:

Air Handling Units (AHUs)
Commercial and industrial ventilation systems
Fume extraction systems
Supply and exhaust air applications

Longwell ensures that each DD10-10I-014 unit undergoes rigorous testing to verify all performance criteria and mechanical tolerances, providing a reliable component for critical HVAC infrastructure.