Aircol 25 K Covered Axial Fan / Aspirator 800 m³/h

What is an Axial Fan?

An axial fan is a type of fan that moves air parallel to the shaft where the blades rotate. The airflow remains axial at both the inlet and outlet. The propellers rotate around an axis, drawing air in parallel to this axis and expelling it in the same direction. Axial fans are designed to create a pressure difference, which generates airflow across the fan. They are known for producing a high airflow rate, enabling the movement of large volumes of air, but they operate at low pressure.

Usage Areas

For Small and Medium-Sized Spaces:

• Suitable for ventilation in bathrooms, toilets, kitchens, pantries, laundry rooms, garages, and workplaces.
• Especially designed for direct window mounting.

For Large and Medium-Sized Spaces:

• Ideal for kitchens, bathrooms, offices, pantries, and garages.
• Specifically manufactured for direct installation without duct connections, making them efficient for expelling contaminated air directly.

Features

• The aesthetic rear shutter provides maximum protection against dust, bad odors, humidity, and cold air when the fan is not in use.
• The cord-operated back cover ensures the fan stops automatically when closed and starts running when opened.
• The front cover, body, and blades can be easily wiped clean, preventing dust accumulation.
• Optimized motor and body design result in minimal noise levels.
• Self-lubricating motor bearings ensure quiet operation and long-lasting performance.
• Easily mountable on windows.
• Water splash-resistant with IPX4 protection.

Operating Options

• Manual Operation: Can be adjusted manually using the cord-operated cover that functions as an on/off switch.
• Time-Delay Operation: An electronic timer module allows the fan to continue operating for a set time after being switched off.
• Thermal Protection: Prevents motor overheating in hot environments.

Aircol 25 K Axial Fan / Extractor Fan

This model features an automatic closing cover and is designed for efficient air extraction in various settings.

Key Considerations When Choosing an Axial Fan

When selecting a fan, four key parameters should be considered:

1. Required Airflow (m³/h)
2. Pressure Losses
3. Acceptable Noise Level
4. Electrical Power Connection Type

The required air exchange depends on the purpose of the space, the number of occupants, furniture, and activities inside.

Air Exchange Rate Table (Per Hour)

Additionally, air demand per person varies depending on activity levels:

How to Calculate the Required Airflow

The airflow required for ventilation can be determined using the following formulas:

1. Based on Room Volume: $$Q (m³/h) = Air Exchange Rate × Room Volume (m³)$$
2. Based on Number of Occupants: $$Q (m³/h) = Number of People × Required Airflow per Person$$

Example Calculation

• Consider an office with 5 employees.
• The room has a ceiling height of 2.6 meters and a floor area of 50 m².
• The room volume is: $$2.6 \times 50 = 130 m³$$
• The air exchange rate for offices is 4-8. Taking an average value of 5: $$130 \times 5 = 650 m³/h$$
• Employees require additional ventilation: $$5 \times 29 = 145 m³/h$$
• Total Airflow Required: $$650 + 145 = 795 m³/h$$

Selecting the Right Fan

After determining the airflow requirement, the following factors must be considered:

1. Installation Location:
   • Will the fan be mounted on the ceiling, wall, chimney, or ventilation duct?
2. Power Supply Type:
   • For residential or office use: A single-phase (monophase) fan is sufficient.
   • For industrial applications: A three-phase (380V) fan is recommended.

By considering these factors, you can select the most suitable axial fan for your space.