Move air downward
The suspended rotor moves a broad column of room air toward the occupied zone.
RTFANS product referenceHVLS Fans / Charm Series
publishedCharm Series
Quiet and energy-efficient HVLS fans designed for warehouses, gyms and commercial buildings.
SeriesCharm Series
ModelRTF-DF-7E-1EX
CategoryHVLS Fans
Product record retained for engineering review and project selection.
Product overview
Specification snapshot
MPN / modelRTF-DF-7E-1EX
Airflow15,500
Rated power1.5 kW / 2.0 HP
Voltage220/380 V
Product record
Technical specifications
| MPN | RTF-DF-7E-1EX |
|---|---|
| SKU | RTFDF7E01 |
| Fan Dia. | 7.3 m / 24 ft |
| Power | 1.5 kW / 2.0 HP |
| Air Flow(m³/min) | 15,500 |
| Voltage | 220/380 V |
| Rated current (220/380 V) | 4.6/2.7 A |
| Maximum application range | 1,800 m³ |
| RPM | 20-53 RPM |
| Noise | 39 dBA |
| Weight | 120 kg |
| Fan Blades | 6 PCS |
| Motor | RTFANS PMSM direct drive |
| Specification source | 2026 export configuration |
Product context
About Charm Series
Charm Series is designed for large factories, warehouses and high-heat industrial spaces. Its controlled air movement helps equalize temperatures and reduce stagnant air in large occupied spaces.
15,500 airflowFresh-air evaporative coolingIndustrial spaces
Operating principle
How it works
Spread air across the floor
Air moves outward from the fan and mixes warmer and cooler layers in the space.
Support comfort circulation
Air movement can improve perceived comfort, but the fan does not provide outdoor air or refrigeration.
Built for industrial use
Engineering features
Broad air movement
Large-diameter blades move room air across occupied zones and help mix temperature layers.
Facility-led layout
Ceiling height, structure, racks, lights and sprinklers affect the final fan position.
Mechanical safety review
Mounting, fasteners and secondary retention must follow the model installation instructions.
Routine service access
Inspect blades, fasteners, controls and drive components according to the model manual.
Selection data
Performance profile
- Airflow
- 15,500
- Rated power
- 1.5 kW / 2.0 HP
- Application area
- Needs confirmation
- Water consumption
- Needs confirmation
Before specifying
Operating notes
Cooling performance depends on entering air temperature, relative humidity and ventilation. The system performs best where cooled fresh air can move continuously through the space.
Service routine
Maintenance checklist
Before serviceIsolate electrical power and follow the model manual before inspection.
During routine checksInspect blades or impellers, guards, fasteners, safety retainers and controls according to the model manual.
Facility planning
Recommended applications
Airflow and Installation Details
Review the airflow pattern, control system, installation conditions and operating range for this fan.
Model and drive configuration
Charm Series is represented by RTF-DF-7E-1EX in the 2026 export configuration. The source specifies RTFANS PMSM direct drive and 6 PCS blades. The technical table lists the supplied model values, including diameter, airflow, power, voltage, current, speed, noise and weight.
Application range and installation
The source labels maximum application range in cubic meters (m³). This is a volume entry, not a floor-area rating in square meters. Select fan quantity and placement using mounting height, building dimensions, obstructions and the occupied zones. These fans circulate room air; outdoor-air ventilation and process extraction require a separate design.
Performance and service
Review the selected model's operating conditions and noise measurement method before quotation. Have a qualified installer check structural support, blade clearance, safety retainers and electrical supply. Isolate power before inspection and follow the supplied motor and controller manuals for maintenance.
Related guidance: HVLS Fans.
Related industrial equipment
Complementary Ventilation & Cooling Models
Facility planning
Recommended applications
Engineering selection support
Confirm whether Charm Series fits your facility
Share floor area, clear height, roof structure, and operating conditions for a project-specific recommendation.