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VENTS VKM 125 EC


Inline centrifugal fan with the air capacity up to 480 m³/h in steel casing.

  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Dimensions
  • ADDITIONAL TECHNICAL DATA
  • DESIGNATION KEY
Description
Description
APPLICATION
  • Supply and exhaust ventilation and air conditioning systems for various premises requiring cost-effective solution and controllable ventilation.
  • EC motors applied in VKM fans reduce energy demand by about 35% and ensure high aerodynamic performance and low noise level.
  • Such characteristics are of special importance for ventilation of public premises as banks, supermarkets, restaurants, hotels, installation close to residential buildings and for domestic application, e.g. ventilation of private pools. 
  • EC motors enable integration of several fans into a unified networks and their centralized control.
  • The steel casing ensures reliable operation of the fan in case of its outside installation.
  • The fans are designed for connection to Ø 100, 125, 150, 160, 200, 250 and 315 mm air ducts.
DESIGN
  • The fan casing is made of polymer coated steel. 
  • New technologies for manufacture of the fan components let attain the total casing air tightness.
MOTOR
  • The impellers with backward curved blades are powered with a high efficient electronically commutated (EC) direct current motor with external rotor. As of today, such motor type is the most advanced solution for energy saving.
  • EC-motors are featured by high performance and the best speed controllable range. 
  • Premium efficiency reaching up to 90% is the absolute advantage of electronically commutated motors.
  • The motors are equipped with ball bearings for longer service life of the fan (40 000 hours).
  • For precise features, safe operation and low noise, each turbine is dynamically balanced while assembly.
  • Motor ingress protection rating IP 44.
SPEED CONTROL
  • The fan is controlled with the external control signal 0-10 V (air capacity control as a function of temperature, pressure, smoke conditions and other parameters).
  • Should the control value get changed, the EC-motor adjusts its speed and the fan boosts as much air capacity to the ventilation system as required. 
  • Maximum speed of the fan does not depend on the current frequency and it can operate at 50 or 60 Hz mains supply.
  • The fans may be integrated into the unified dispatch system. The respective software enables to control all the fan integrated into the system. The computer display shows all the system parameters. Each fan in the system may be individually adjusted.
MOUNTING
  • The fans may be installed at any angle.
  • The fixing brackets that are included into the delivery set are used to facilitate the fan mounting to the wall. 
  • The fan is connected to power mains through the external terminal box.
Characteristics
Characteristics
Parameter VKM 125 EC
Measurement unit
Current 0.58 A
Max. transported air temperature -25 +60 °С
Low-powered motor Low-powered motor no -
High-power version no -
Duct diameter 125 mm
Design centrifugal -
Voltage 1~ 220-277 V
Frequency 50/60 Hz
Sound pressure level at 3 m distance 45 dB(А)
Power consumption 83 W
Casing material polymer coated steel -
EC motor yes -
Maximum air capacity 480 m³/h
RPM 3400 min-1
Protection rating IP X4 -
Weight 3.58 kg
Outdoor mounting yes -
SEC Class B -
Form-ducts for round air ducts -
Type -
Mounting outdoor mounting, Inline -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Files archieve
Downloads
Name
User's manual "VENTS VKM EC" (pdf 2.34Mb)
Brochure "VENTS VKM EC" (pdf 2.48Mb)
Download image "VKM EC (ErP 2015, 2016, 2018)" for your website (png 447.24Kb)
Download high quality image "VKM EC (ErP 2015, 2016, 2018)" (psd 4.18Mb)
Dimensions
Characteristics
VENTS  VKM 125 EC
Parameter Value Measurement unit
∅D 123 mm
ØD1 255 mm
B 310 mm
B1 270 mm
H 340 mm
L 203 mm
L1 20 mm
L2 25 mm
L3 30 mm
ADDITIONAL TECHNICAL DATA
ADDITIONAL TECHNICAL DATA
Sound-power level, A - weighted Octave frequency band [Hz] LpA, 3 m [dB(А)] LpA, 1 m [dB(А)]
  Hz Gen. 63 125 250 500 1000 2000 4000 8000
LwA to inlet dB(А) 91 62 83 90 79 74 71 65 54 71 81
LwA to outlet dB(А) 90 69 83 89 78 71 68 63 52 70 80
LwA to environment dB(А) 65 27 48 58 59 60 60 49 37 45 55
DESIGNATION KEY
DESIGNATION KEY
Series Air duct diameter [mm] Motor Options
VENTS VKM
VENTS VKMS: Hight-power version
100; 125; 150; 160; 200; 250; 315 EC: electronically commutated synchronous motor Q: low-power motor
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