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VENTS Casto Duo series

VENTS Casto Duo series
Two-speed axial low-noise and low energy fans for exhaust ventilation with air flow up to 300 m³/h.
Model features
  • Domestic fans
  • Humidity sensor
  • Timer
  • Ball bearings
  • Double-speed
  • Description
  • Modifications
  • Capacity diagram
  • Downloads
  • Designation key
Description
Description
APPLICATION  
  • 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 and 150 mm air ducts.
DESIGN  
  • The casing and the impeller are made of high-quality 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.
  • Designed for continuous operation and requires no maintenance.
  • Equipped with overheating protection.
CONTROL  

Automatic:

  • 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 a 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 the TH timer and a 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.

Manual

  • The fan is operated via light switch (not included in the delivery set).
MOUNTING FEATURES  
  • The fan is mounted directly into the ventilation shaft.
  • Wall fixing with screws.
  • Suitable for ceiling mounting.
  • Flexible duct connection is recommended in case of the remote ventilation shaft location. The air duct is connected to the fan exhaust flange by means of a clamp.
MOUNTING EXAMPLE  
Modifications
Modification with a two speed high-powered motor
Turn-off delay timer
Turn-on delay timer
Humidity sensor
Ball bearing motor
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Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Downloads
Downloads
Name
Broschure "VENTS Casto Duo" (pdf 2.22Mb)
Download high quality image "VENTS Casto Duo" (psd 2.34Mb)
Download image "VENTS Casto Duo" for your website (png 588.01Kb)
Designation key
Designation key
PICTURE SYMBOL DESIGNATION MODIFICATION DESCRIPTION
Casto Duo L The motor is equipped with ball bearings to increase the service life (about 40000 of operating hours) and a fan, mounting at any angle. The bearings are maintenance-free and contain enough grease for the entire operating period.
Casto Duo T1 Equipped with an adjustable high-speed turn-on delay timer (from 0 to 2 minutes) and an adjustable highspeed turn-off delay timer (from 2 to 30 minutes).
Casto Duo TH Equipped with an adjustable turn-off delay timer (from 2 to 30 minutes) and a fixed turn-on delay timer (45 s) with a humidity sensor adjustable from 60 % to 90 %.
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