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VENTS MF Series

VENTS MF Series
.Two-speed axial low-noise and low energy fans for exhaust ventilation with air flow up to 300 m³/h.
Model features
  • Silent mode
  • Extract mode
  • Domestic fans
  • Description
  • Modifications
  • Capacity diagram
  • Downloads
  • Certificates
  • Designation key
Description
Description
APPLICATIONS  
  • Continuous or periodic exhaust ventilation of bathroom, showers, kitchens, and other residential premises.
  • Ventilation of premises with high requirements to noise level.
  • Permanent low-speed operation mode ensures continuous air exchange in the room.
  • Ventilation shaft mounting or connection to Ø 100, 125 and 150 mm air ducts.
DESIGN  
  • The casing and the impeller are made of highquality durable plastic, UV resistant.
  • The aerodynamic design of the impeller ensures high air flow and low noise level.
  • The fan is equipped with a specially designed backdraft damper to prevent back flow and heat losses during the fan standby.
  • The fan outlet spigot incorporates specially designed air rectifiers to reduce air turbulence, noise level and increase air pressure.
MOTOR  
  • Low energy demand from 5 W due to a new twospeed high-efficient motor.
  • Ingress protection rating IP44.
  • Designed for continuous operation and requires no maintenance.
  • Equipped with overheating protection.
CONTROL  

Manual control:

  • The fan is operated via a light switch (not included in the delivery set).
  • Speed control with a thyristor speed controller, refer to the Electric accessories. Speed controllers cannot be connected to the T1 and TH fan modifications.

Automatic:

  • Speed control with an electronic control unit BU-1-60, refer to the Electric accessories. The control unit is supplied separately.
  • By the T1 timer. When the external switch is turned on, the fan switches to a higher speed with a delay of 0 to 2 minutes. When the external switch is turned off, the fan will return to a low speed with a delay of 2 to 30 minutes.
  • By the humidity sensor and the TH timer. If the humidity level in the room exceeds the sensor threshold (60-90 %), the fan will automatically switch to a higher speed and will continue running until humidity returns to normal levels. Then the fan runs for 5 minutes at a high speed and switches to a low speed. The fan with a timer and TH humidity sensor can also be controlled in manual mode, for example, using the light switch. When the control voltage is applied, the turn-on delay timer is activated for 45 seconds and the fan switches to the second speed. After disconnecting the control voltage, the fan runs for a time set by the turn-off delay timer (from 2 to 30 minutes), and switches to the first speed.
MOUNTING FEATURES  
  • The fan is mounted directly into the ventilation shaft.
  • Flexible duct connection is recommended in case of the remote ventilation shaft location. The air duct is connected to the fan exhaust flange through a clamp.
  • Wall fixing with screws.
  • Suitable for ceiling mounting.
MOUNTING EXAMPLE  
Modifications
Ball bearing motor
Timer
Humidity sensor
Pull-cord switch
No extra functions
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Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Downloads
Downloads
Name
Brochure "VENTS MF Duo" (pdf 2.75Mb)
Download image "VENTS MF Duo" for your website (png 431.42Kb)
Download high quality image "VENTS MF Duo" (psd 2.11Mb)
Certificates
Certificates
<p>
	Mark of conformity to the European Quality Standards and Electrical Safety issued by Association for Technical Inspection (Technischer Überwachungsverein, Germany).</p>

Mark of conformity to the European Quality Standards and Electrical Safety issued by Association for Technical Inspection (Technischer Überwachungsverein, Germany).

<p>
	Mark of conformity to the Polish Quality Standards and electrical safety issued by PCBC (Polish center for testing and certification). </p>

Mark of conformity to the Polish Quality Standards and electrical safety issued by PCBC (Polish center for testing and certification).

<p>
	Mark of conformity to the Slovak Quality Standards and electrical safety issued by EVPU (Slovakia).</p>

Mark of conformity to the Slovak Quality Standards and electrical safety issued by EVPU (Slovakia).

<p>
	Mark of conformity to the Ukrainian Quality Standards and electrical safety issued by UkrTEST.</p>

Mark of conformity to the Ukrainian Quality Standards and electrical safety issued by UkrTEST.

<p>
	Mark of conformity of the goods subject to obligatory certification in DSTR system as well as technical norms and standards acting in Russian Federation. Confirmed by the RosTEST certificates (Moscow). </p>

Mark of conformity of the goods subject to obligatory certification in DSTR system as well as technical norms and standards acting in Russian Federation. Confirmed by the RosTEST certificates (Moscow).

<p>
	Insulation class: double insulation.</p>

Insulation class: double insulation.

<p>
	Equipment protection rating.</p>

Equipment protection rating.

Designation key
Designation key
PICTURE SYMBOL DESIGNATION MODIFICATION DESCRIPTION
MF L Duo The motor is equipped with ball bearings to increase the service life (about 40 thousand operating hours) and fan mounting at any angle. The bearings are maintenance-free and contain enough grease for the entire operating period.
MF T1 Duo Equipped with an adjustable high-speed turn-on delay timer (from 0 to 2 minutes) and an adjustable high-speed turn-off delay timer (from 2 to 30 minutes).
MF TH Duo Equipped with an adjustable turn-off delay timer (from 2 to 30 minutes) and a fixed turn-on delay timer (60 s) with a humidity sensor adjustable from 60 % to 90 %.
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