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When the fan is turned off, the non-return flap prevents outside air from entering the room and out of hot air. When the fan is running, the non-return flap opens to allow unwanted air to be removed efficiently.

The VENTS TT and VENTS TT PRO fans are featured with wide capabilities and high performance of axial and centrifugal fans and are specifically designed for supply and exhaust ventilation of premises requiring high pressure, powerful air flow and low noise level. The fans are compatible with round air ducts from Ø 100 to 315 mm. Exhaust ventilation systems based on the VENTS TT fans are the best solution for ventilation of bathrooms and kitchens and other humid premises as well for ventilation of flats, cottages, shops, cafes, etc.

The VENTS TT and VENTS TT PRO fans are featured with wide capabilities and high performance of axial and centrifugal fans and are specifically designed for supply and exhaust ventilation of premises requiring high pressure, powerful air flow and low noise level. The fans are compatible with round air ducts from Ø 100 to 315 mm. Exhaust ventilation systems based on the VENTS TT fans are the best solution for ventilation of bathrooms and kitchens and other humid premises as well for ventilation of flats, cottages, shops, cafes, etc.

Extremely quiet axial fan for any interior, especially to the bathroom and toilet but also office and living room. Low power consumption. Quiet operation. Characteristic modern design and high quality.

Hygro (humidistat). With lighted LED-Display. Adjustable humidity detector from 40% to 95%, and adjustable electronic Timer 0-15 minutes.

The Model E - GLASS DISPLAY allows continuous ventilation   (24 hours) from rooms with high humidity by activating the switch S1. If the humidity exceeds the adjusted humidity level, the Hygro function is activated and the fan operates at the highest level. Decreases the degree of humidity again below the set value, the unit turns in the case of S1 = OFF from, or at S1 = ON to the low level back. The room fan will be switched to the high level when the light switch of the space is switched on. After turning off the light switch, the device is still on during the timer set time at a maximum level and eventually shuts down in the case of S1 = OFF, or at S1 = ON to the low level back

Turning fan on/off and speed switching for multispeed fans.

Motor speed controller RS-1-400 (under surface mounted) is used to control rotating speed of single - phase motors. It can be used in situation where the motor speed is governed by adjusting the effective voltage given to the winding.

Motor speed controller RS-1-400 is used to control rotating speed of single - phase motors. It can be used in situation where the motor speed is governed by adjusting the effective voltage given to the winding.