Roof-mounted radial fan Ø200 for air extraction from a ventilation duct

Roof fan for air extraction from a ventilation duct

This roof fan is intended for mechanical extraction of stale air from a ventilation duct on the roof. It is suitable for residential buildings, public buildings, sports facilities and business or retail premises.

Main advantages

• High airflow enables extraction up to 845 m³/h.
• Single-phase power supply 220–240 V, 50 Hz for simple integration into the electrical installation.
• Motor for continuous operation with ball bearings ensures reliable use.
• IPX4 protection allows use on the roof with proper installation.
• Robust design with a polymer impeller and metal mounting base.
• Suitable for several types of buildings thanks to its design for mechanical exhaust ventilation.

Operation and installation

The fan has one speed and operates with an external switch in the electrical installation. According to the manufacturer’s instructions, an external speed controller can also be installed, but it is not included.

Installation is vertical, with the cap at the top. The square mounting base with four fixing holes is fastened to the flat top of the ventilation duct or roof upstand, and the round connection spigot is inserted into the duct. The joint between the duct and the fan must be sealed to prevent water ingress. The connection cable is not included; an additional cable for outdoor use is required, with a permanent connection to the electrical installation, and the installation must include an all-pole switch with a contact gap of at least 3 mm. Connection should be carried out by a qualified electrician.

Technical characteristics

Maintenance

The fan does not require frequent maintenance. The impeller can be removed and cleaned with a damp cloth, but the motor must not be allowed to get wet. The power supply must be switched off before cleaning, and the motor must be inspected at least every two years.

Frequently asked questions

How is the fan switched on?

It is switched on and off with an external switch in the electrical installation.

Is it suitable for flues of heating appliances?

No, the fan is not intended for flues of heating appliances, such as boilers, stoves or fireplaces.

Is the connection cable included?

No, the connection cable is not included; an additional cable for outdoor use and a permanent connection to the electrical installation are required.

Conclusion

The roof fan is intended for reliable air extraction from a ventilation duct on the roof. Due to its design, technical data and option of external control, it is suitable for different types of buildings.