GFR with G4/M5 Filter

The air supply units from the GFR line with built-in filters are designed for the intake of outdoor air, ensuring a healthier indoor environment, free from impurities. Equipped with G4/M5 class filters, these units comply with the NBR 16401-3 standard, providing a high level of filtration and air quality.

Constructed with low-profile galvanized steel, they include mounting brackets and allow for horizontal or vertical installation, easily adapting to different spaces.

About the Product

Main Features:

✲ Integrated flat G4 and pleated M5 filters, complying with NBR 16401-3 for improved air quality
✲ Internal motor with direct drive to Siroco rotor, eliminating the need for belts and pulleys
✲ Quick-access panel, allowing easy filter replacement and motor cleaning
✲ Low noise level and vibration-free operation, ensuring greater comfort in the environment
✲ Integrated thermal protector to prevent motor overheating by automatically shutting down the unit
✲ Extended working temperature range: Resistant to temperature variations from -40°C to +65°C
✲ Compact galvanized steel structure with brackets for secure installation

Available Models:

🔹 GFR 230 – Three speeds | Single-phase Voltage
🔹 GFR 280 – One speed | 380V Single-phase Voltage

Technical Specifications

Specifications for 230V/60Hz for model 230 and 380V/60Hz for model 280.
Sound pressure level measured at 3 meters in free field, with ducts on intake and discharge sides.

ModelSpeedMaximum Flow Rate [m³/h]Maximum Pressure
[mmwc]
Sound
Pressure Level
[dBA]
Frequency [Hz]Motor Power [W]Total Power
Absorbed [W]
Voltage TypeVoltage [V]Dimension of intake
port
[mm]
Outlet
mouth dimension
[mm]
230High2050446060450734Single phase230550×330300×260
Medium15303657465Single phase230
Low11903155330Single phase230
28016603610626460800839Single phase230682×492302×236
*Specifications for 230V/60Hz for the 230 model and 380V/60Hz for the 280 model.
*Sound pressure level, measured at 3 m in a free field, with ducts on both suction and discharge sides.

Models

230

280

MODELDimensions (mm)Weight (Kg)
ABCDE
23060472542277467035
28076082055189682557

FAQ

It is essential to properly size the supply fan according to the room’s dimensions (volume and shape), following the technical recommendations of standard NBR 16401-2008.

A good supply fan should always provide better air quality, meeting the specific needs of your space. If you’re not sure which product is best for you, you can get in touch with one of our specialists. We have a qualified team with the technical expertise to help you make the best choice.