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Centrifugal duct fan VK range

Ductfan VK range

VK fan

Applications

VK fans are applied for supply and exhaust ventilation systems of commercial, office and other premises. Compatible with Ø 100, 125, 150, 200, 250 and 315 mm round air ducts. Models marked VK...Q are supplied with quiet motors for low-noise applications. Due to the corrosion-resistant durable plastic casing, these models are the perfect solution for the installation in exhaust ventilation systems in humid premises such as bathrooms, kitchens etc.


Design

The casing is made of high-quality durable ABS plastic. The fans are equipped with waterproof terminal boxes. Models marked VK..R are supplied with the power cord and a plug.
 

Motor

The impeller with backward curved blades is powered by a single-phase asynchronous AC motor with external rotor including the following features:
• A dynamic balanced impeller with backward curved blades balanced in two planes.
• Overheating protection with automatic restart.
• Maintenance-free ball-bearings used with motors and designed for at least 40 000 hours operation. Models marked VKS are supplied with high-powered motors. Motor protection rating IP 44.


Speed control

Smooth or stepped speed control can be performed by external thymistor or transformer. Several fans can be connected to one speed controller if the total power and operating current of fans do not exceed the rated controller values.
 

Mounting

Instalation to the wall or ceiling can be performed by means of mounting brackets (included in the delivery) or with additional PVК holders (available upon request). The fan can be mounted at any angle.
Electric connection and installation shall be performed in compliance with the manual and the wiring diagram on the terminal box.


Ductfan VK......U range

Ductfan VK......U range
  • Modifications

 The VKU fan is equipped with a speed controller module and built-in temperature sensor.

 


Ductfan VK....Un range

Ductfan VK....Un range
  • Modifications

 The VKUn  fan is equipped with a speed controller module and external temperature sensor.


 

 


Ductfan VK......U1 range

Ductfan VK......U1 range
  • Modifications

The VKU1 fan is equipped with a speed controller module, built-in timer and temperature sensor.


Ductfan vk.....U1n range

Ductfan vk.....U1n range
  • Modifications

 The VKU1n fan is equipped with a speed controller module, built-in timer and  external temperature sensor.



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