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VENTS VK 250 EC


Inline centrifugal fan in plastic casing with the air capacity up to 1250 m³/h.

  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Dimensions
  • Additional characteristics
  • Designation key
Description
Description
APPLICATIONS
  • Supply and exhaust ventilation and air conditioning systems of various premises requiring cost-saving controllable ventilation. 
  • The best ventilation solution for exhaust ventilation of bathrooms, kitchens and other humid premises.
  • Compatible with Ø 100, 125, 150, 200, 250 and 315 mm round air ducts.
DESIGN
  • Durable, impact-resistant and corrosion-free ABS-plastic casing.
  • Airtight terminal box for connection to power mains. 
  • VK … EC P is fitted with a built-in smooth speed controller and power cord with IEC C14 electric plug.
MOTOR
  • High-efficient electronically commutated direct current motors with backward curved blades.
  • Such motors are the most state-of-the-art energy saving solution.
  • Power consumption of EC motors is 35% less as compared to standard motors.
  • The fans with EC motors have excellent aerodynamic performance and low-noise operation.
  • EC motors are featured with high performance and total speed controllable range.
  • High efficiency reaching 90% is the premium advantage of the electronically-commutated motors.
  • The motors are equipped with ball bearings designed for at least 40 000 operating hours.
SPEED CONTROL
  • The fan is operated with an external 0-10 V control signal.
  • The air capacity is controlled depending on air temperature, pressure level, smoke content, etc.
  • The speed of the EC motor changes proportionally to fluctuations of the control parameter and the fan delivers a required air volume to the ventilation system.
  • Maximum fan speed does not depend on the current frequency.
  • The fan is compatible both with 50 or 60 Hz power mains.
  • The fans may be integrated into a unified data processing control system.
  • The specially designed software provides precise control of all the fans integrated into the system.
MOUNTING
  • The fans are designed for duct mounting in any point of the ventilation system with the casing mounted at any angle.
  • In case of vertical mounting a protective outer hood must be installed on the top. 
  • Fixation to the floor wall or ceiling is performed with the supplied mounting brackets.
  • Electric connection and installation must be performed in compliance with the manual and the wiring diagram on the terminal box.
VENTS VK EC fan kitchen ventilation example
Characteristics
Characteristics
Parameter VK 250 EC
Measurement unit
Duct diameter 250 mm
Design centrifugal -
Voltage 1~230 V
Frequency 50/60 Hz
Sound pressure level at 3 m distance 48 dBА
Power consumption 165 W
Maximum air capacity 1250 m³/h
Current 1.10 A
EC motor yes -
RPM 2600 min-1
Max. transported air temperature -25 +60 °С
Protection rating IP X4 -
Weight 4.3 kg
Casing material plastic -
SEC Class - -
Duct for round air ducts -
Type -
Mounting Inline -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Files archieve
Downloads
Name
Brochure "VENTS VK EC" (pdf 1.86Mb)
Download high quality image "VENTS VK EC (ErP 2015, 2016, 2018)" (psd 4.28Mb)
Download image "VENTS VK EC (ErP 2015, 2016, 2018)" for your website (png 391.06Kb)
Dimensions
Characteristics
VENTS  VK 250 EC
Parameter Value Measurement unit
∅D 250 mm
ØD1 340 mm
B 354 mm
L 265 mm
L1 30 mm
L2 30 mm
L3 40 mm
Additional characteristics
Additional characteristics
Point on the diagram 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Power [W] 152 161 165 154 121 131 140 125 76 83 89 78 37 40 43 38 16 17 18 16

 

ƞ, [%] MC EC N VSD [kW] [A] [m3/h] [Pa] [RPM] SR
42 А Static 56.7 No 0.164 1.14 754 293 2484 1

 

Sound power level, A-filter applied Sound pressure level at 3 m distance, A-filter applied Sound pressure level at 1 m distance, A-filter applied
Sound power level, A-weighted Gen. Octave frequency band [Hz]
  Hz 63 125 250 500 1000 2000 4000 8000 LpA, 3 m [dBA] LpA, 1 m [dBA]
LwA to inlet dBA 89 60 77 84 82 84 80 76 64 69 79
LwA to outlet dBA 87 63 76 72 81 83 81 76 62 67 77
LwA to environment dBA 68 30 49 58 62 65 61 52 38 48 58
Designation key
Designation key
Series Duct diameter Motor Options

VENTS VK EC

100; 125; 150; 200; 250; 315

ЕС
- synchronous electronically commutated motor
U: speed controller with electronic thermostat and temperature sensor integrated into the air duct. Equipped with power cord and IEC C14 electric plug.
Un: speed controller with electronic thermostat and external temperature sensor fixed on 4 m cable. Equipped with power cord and IEC C14 electric plug. 
P:
 built-in smooth speed controller and power cable with IEC C14 electric plug.
R: power cord with IEC C14 electric plug.

 

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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