Air Handling Unit Fan Motor

The Air Handling Unit Fan Motor delivers reliable torque and continuous airflow against high static pressure in commercial air handling systems. Built with IP55 moisture protection, Class F insulation, and precision-balanced rotors, this motor ensures low-vibration operation in ventilation, heating, and cooling applications.

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High-Efficiency Air Handling Unit Fan Motor for Commercial HVAC Systems

Industrial-grade electric motor engineered for continuous S1 duty in Central AHU and Cleanroom Ventilation Systems.

Product Overview

Key Features of Air Handling Unit Fan Motor

Class F Insulation with Class B Temperature Rise
Resists thermal degradation during continuous full-load operation, extending motor winding operational life.

VFD-Driven Inverter Duty Protection
Reinforced phase insulation and spike-resistant magnet wire withstand high-frequency voltage peaks from standard frequency converters.

Low Vibration & Quiet Bearing System
Dynamically balanced to G2.5 precision limits to minimize acoustic resonance inside metallic AHU cabinets.

Corrosion-Resistant Housing Option
Cast iron or aluminum enclosures coated with epoxy anti-corrosion paint handle high-humidity airflow environments.

Technical Specifications

Parameter	Standard Value
Power Rating	0.75 kW - 75 kW
Frame Size	IEC 80 - IEC 280
Speed / Pole	2P (2900 RPM) / 4P (1450 RPM) / 6P (960 RPM)
Voltage	380V / 400V / 415V / 460V
Efficiency Class	IE2 / IE3 / IE4
Duty / Protection	S1 Continuous / IP55
Insulation Class	Class F
Cooling Method	IC411 / IC416
Bearing System	Deep Groove Ball Bearings
Vibration Level	Grade A (ISO 2372)

Applications of Air Handling Unit Fan Motor

Commercial Building AHUs
Provides stable airflow across multi-stage filtration units in shopping malls, office towers, and hotels.

Cleanroom & Pharmaceutical Ventilation
Maintains constant static pressure across HEPA filtration banks with tight speed stability.

Data Center Cooling Units
Delivers 24/7 continuous duty cooling with zero unscheduled downtime requirements.

Hospitals & Healthcare Facilities
Operates with minimal structure-borne noise in critical isolation ward ventilation systems.

Motor Configuration & Customization

Frame Material: Die-cast aluminum for lighter weight or heavy-duty cast iron for industrial environments.

Mounting Arrangements: IM B3 foot-mounted, IM B5 flange-mounted, or IM B35 combination.

Shaft Protections: Insulated non-drive end bearings and internal shaft grounding rings for frequency drive operation.

Winding Protection: Embedded thermal switches or thermistors for direct thermal monitoring.

OEM Solutions

Custom Shaft Dimensions: Extended length, stepped shafts, special keyways, and stainless steel options for direct-drive centrifugal fan impellers.

Winding Voltage Adaptations: Custom dual-voltage windings and 60Hz configurations matching regional electrical grids.

Thermal Protection Integration: Pre-wired thermistors and temperature sensors routed directly to terminal boxes.

Special Mounting Interfaces: Custom end-shield flanges designed for specific fan housing geometries.

Manufacturing Standards & Quality Evidence

IEC Standard Compliance: Full dimensional interchangeability across global industrial equipment setups.

Automated Stator Lamination: High-permeability silicon steel sheets reduce core losses and operating temperatures.

Factory Inspection: Dynamometer load testing, dynamic balance verification, and high-voltage dielectric insulation tests before shipment.

Component Traceability: Vacuum-pressure impregnated copper windings and pre-lubricated double-sealed bearings.

FAQ

Q: What efficiency standards do these motors meet?

A: The motors comply with international standard efficiency classifications, available in IE2, IE3, and IE4 levels.

Q: Can these motors run directly with variable frequency drives?

A: Yes, all models feature inverter-duty phase insulation and spike-resistant magnet wire to handle drive frequencies without insulation breakdown.

Q: How is bearing protection handled when driven by frequency converters?

A: To prevent electrical bearing damage caused by shaft voltages, insulated bearings or shaft grounding rings are installed on motors 30 kW and above.

Q: What mounting arrangements are available for direct-drive fan blowers?

A: Standard foot mount, flange mount, combination mount, and customized face-mounting plates are available.

Q: What temperature sensors can be embedded into the windings?

A: Thermistors set at 130 degrees Celsius or 150 degrees Celsius are standard, with resistance temperature detectors available for real-time monitoring.

Q: What is the lead time for customized motor production?

A: Standard production cycles range from 20 to 30 days depending on raw material specifications and custom shaft machining requirements.

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