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Axial roof fan VENTS VOK series

  • Description
  • Modifications
  • Capacity diagram
  • Downloads
  • Legend
Description
Description
APPLICATIONS
  • Exhaust ventilation system for various premises for roof mounting.

  • Compatible with Ø 200 to 500 mm round air ducts.
DESIGN
  • The fan casing is made of steel with polymeric coating.

 
MOTOR
  • The impellers are powered with two- or four-pole, singlephase asynchronous motors with external rotor and built-in thermal overheating protection with automatic restart depending on the model.

  • Ball bearings in the motor ensure long service life.

  • Motor protection rating IP 24.

SPEED CONTROL
  • Both smooth or step speed control is performed by means of the thyristor or autotransformer controller.

  • Several fans can be connected to one controller under condition that the total power and operating current do not exceed the rated controller values.

MOUNTING
  • The fan is mounted on the roof directly above the ventilating duct or shaft and is firmly fixed to the flat surface by means of a connecting plate.

  • While mounting VOK fans directly onto the flat roof a supporting block shall be provided to prevent water and snow drops into the vent of the ventilation shaft.

  • Electrical connection and installation shall be performed in compliance with the manual and circuit diagram on the terminal box.

Modifications
Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Downloads
Downloads
Name
User's manual "VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1" (pdf 3.37Mb)
Brochure "VENTS VOK" (pdf 1.01Mb)
Download high quality image "VENTS VOK (ErP 2015, 2016, 2018)" (psd 3.85Mb)
Declaration of сonformity "VOK, VOK1" (pdf 1.65Mb)
Brochure "Roof fans accessories" (pdf 129.67Kb)
Download image "VENTS VOK (ErP 2015, 2016, 2018)" for your website (png 291.07Kb)
Legend
Legend
Series Motor modification Impeller diameter
Number of poles Phase
VENTS VOK 2, 4 E: single phase 200; 250; 300; 350

 

ErP data  
Overall efficiency η, [%]
Measurement category MC
Efficiency category EC
Efficiency grade N
Variable speed drive VSD
Power [kW]
Current [A]
Air flow [m3/h]
Static pressure [Pa]
Speed [n/min-1]
Specific ratio SR
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