Inline centrifugal fans in steel casing with air flow up to 1980 m³/h. AC Motor High-powered modifications (VKMS). Speed-controllable Backward-curved blades
VKM Fan sample Inline centrifugal fans in steel casing with air flow up to 1980 m³/h. AC Motor High-powered modifications (VKMS). Speed-controllable Backward-curved blades

VKMS 315 AC

Inline centrifugal fans in steel casing with air flow up to 1980 m³/h.
  • AC Motor
  • High-powered modifications (VKMS).
  • Speed-controllable
  • Backward-curved blades
Category

Description

APPLICATIONS
  • Supply and exhaust ventilation systems for commercial, office and other public or industrial premises.
  • The steel casing provides reliable operation in case of outdoor installation.
  • For premises with high requirements to the noise level we suggest units in low-noise modification (VKM…Q).
DESIGN
  • The fan casing is made of steel with polymeric coating.
  • For easy connection and operation the power cord with a plug can be provided (VKM…R).
MOTOR
  • The impeller with backward curved blades is powered by the single phase motor with external rotor and overheating protection with automatic restart.
  • Some standard sizes are available is high-powered modifications (VKMS).
  •  The VKM…E models are equipped with energy-efficient motor with low energy demand.
  • The motor is equipped with ball bearings for long service life designed for at least 40 000 hours.
  • For precise features, safe operation and low noise, each turbine is dynamically balanced while assembly.
  • Motor protection rating IP 44.
SPEED CONTROL
  • Smooth or step speed control with a thyristor or autotransformer speed controller.
  • Several fans may be connected to one speed controller provided that the total power and operating current do not exceed the rated speed controller parameters.
  • The VKM…P models are equipped with a built-in speed controller (available for diameters 100…315).
MOUNTING
  • Mounting to wall or ceiling at any angle is performed with fastening brackets supplied with the unit.
  • The fan is powered through the external terminal box.
  • Electric connection and installation shall be performed in compliance with the manual and wiring diagram on the terminal box.
THE FAN WITH ELECTRONIC TEMPERATURE AND CONTROL MODULE (U OPTION)
  • The ideal solution for ventilation of the premises requiring permanent temperature control, i.e. greenhouses.
  • The fan with the electronic temperature and speed control module provides automatic control of the motor speed (air capacity) depending on air temperature in the air duct or in the room.
  • The front panel of the electronic module has the following control knobs:
    • speed control knob for setting the motor speed;
    • thermostat control knob for setting the temperature set point;
    • thermostat indicator light.
  • VKM…Un – the model with an external temperature sensor fixed on a 4 m cable (Un / U1n option).
  • The temperature sensor has mechanical protection.

Characteristics

Parameter VKMS 315
50 Hz		 VKMS 315
60 Hz		 Measurement unit
Phase 1 ˜
Voltage 230 V
Frequency 50 60 Hz
Sound pressure level at 3 m distance 54 55 dBА
Power consumption 295 413 W
Maximum air capacity 1920 1980 m³/h
Current 1.34 1.8 A
RPM 2720 2780 min-1
Max. transported air temperature -25 +45 °С
Protection rating IP X4 –
Duct diameter 315 mm
Weight 8.8 kg
Design centrifugal –
Casing material polymer coated steel –
Duct for round air ducts –
Type supply and exhaust –
Mounting Inline –

Additional characteristics

Sound-power level LpA, 3 m dBA LpA, 1 m dBA
Gen. Octave-frequency band [Hz]
Hz 63 125 250 500 1000 2000 4000 8000
LwA to inlet dBA 94 63 81 88 86 88 84 80 68 73 83
LwA to outlet dBA 92 67 81 77 86 88 86 81 66 72 82
LwA to environment dBA 74 38 53 66 69 69 67 54 42 54 64

Dimensions

Parameter Value Measurement unit
∅D 314 mm
B1 415 mm
ØD1 405 mm
B 455 mm
L 290 mm
L1 30 mm
L2 30 mm
L3 40 mm

14 schema Inline centrifugal fans in steel casing with air flow up to 1980 m³/h. AC Motor High-powered modifications (VKMS). Speed-controllable Backward-curved blades

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