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VENTS VDO 900-6

  • Description
  • Characteristics
  • Downloads
  • Modifications
  • Dimensions
  • Additional diagrams
  • Dimensions
  • Designation key
  • Accessories
  • Operation of fans with frequency converters
Description
Description
PURPOSE  
  • The fans are used for extraction of smoke in case of fire and removal of hot air outside.
  • The fans are also used for general ventilation systems.
OPERATION  
  • The fans are rated for permanent operation at ambient air temperatures from -60 °C up to +50 °C (depends on climatic category, see the Designation key).
  • The fans are able to operate 2 hours at the temperatures +200 °C, +300 °C and +400 °C.
DESIGN  
  • The fan consists of the casing, impeller and motor.
  • The metal casing with rolled flanges helps achieve outstanding rigidity and minimum clearances between the casing and the blades.
  • There is an inspection hatch in the casing for easy maintenance.
  • All the casing components are powder coated for improved protection against the environmental effects.
  • The weight of the fans may differ from the one stated in the catalogue and depends on the components used (motor, terminal box, etc.).
MOTOR  
  • The fans are equipped with three-phase (400 V/50 Hz) motors.
  • Depending on the model, the fans have single- or double-speed modifications.
  • The single-speed models are equipped with 2-, 4- or 6-pole motors.
  • The double-speed models are equipped with 2/4- or 4/8-pole motors.
IMPELLER  
  • Depending on the size and the required air capacity the fans are equipped with impellers with 6 or 8 blades angled from 20° to 50° with from 2.5 up to 5° stepping to ensure precise matching of fans with the operating point.
  • The specially designed impeller blades ensure high efficiency of the fan while keeping noise well under control.
  • The impellers are dynamically balanced.
  • Low weight and low moment of the impeller inertia help reduce the fan start-up time.
  • The fan blades are made of cast aluminium.
MOUNTING  
  • The fans can be mounted on any flat surface or directly into a ventilation duct.
  • The units are suitable for both horizontal and vertical configurations.
  • Installation in the air duct requires flanges to attach the fan to the ductwork.
  • To attach the fan to the floor, a wall or the ceiling use the O-VO carriers (not included as standard, should be purchased separately).
  • The fans are suitable for installation on rooftops.
COMPLETE SOLUTIONS FOR AXIAL FANS
INSTALLATION EXAMPLE OF AXIAL FANS ON ROOFTOP
Characteristics
Characteristics
Parameter VDO-900-6D/0,75-8/20/AL
VDO-900-6D/1,1-8/25/AL
VDO-900-6D/1,5-8/30/AL
VDO-900-6D/1,5-8/32,5/AL
VDO-900-6D/2,2-8/35/AL
VDO-900-6D/2,2-8/37,5/AL
VDO-900-6D/2,2-8/40/AL
VDO-900-6D/3-8/45/AL
Measurement unit
Size 900 900 900 900 900 900 900 900 -
Design round flange, axial round flange, axial round flange, axial round flange, axial round flange, axial round flange, axial round flange, axial round flange, axial -
Smoke removal yes yes yes yes yes yes yes yes -
Pole number 6 6 6 6 6 6 6 6 -
Phase 3 3 3 3 3 3 3 3 ˜
Voltage 400 400 400 400 400 400 400 400 V
Frequency 50 50 50 50 50 50 50 50 Hz
Installed power capacity Ny 0.75 1.1 1.5 1.5 2.2 2.2 2.2 3 kW
RPM 960 960 960 960 960 960 960 960 min-1
EC motor no no no no no no no no -
Quantity of blades 8 8 8 8 8 8 8 8 -
Blade setting angle 20 25 30 32.5 35 37.5 40 45 °
Casing material polymer coated steel polymer coated steel polymer coated steel polymer coated steel polymer coated steel polymer coated steel polymer coated steel polymer coated steel -
Mass 120.8 124.8 127.8 127.8 138.8 138.8 138.8 152.8 kg
Length 400 400 500 500 500 500 500 500 mm
Outdoor mounting yes yes yes yes yes yes yes yes -
Sound-insulated casing no no no no no no no no -
Duct for round air ducts for round air ducts for round air ducts for round air ducts for round air ducts for round air ducts for round air ducts for round air ducts -
Mounting floor mounting, wall mounting, ceiling mounting, for roof, Inline floor mounting, wall mounting, ceiling mounting, for roof, Inline floor mounting, wall mounting, ceiling mounting, for roof, Inline floor mounting, wall mounting, ceiling mounting, for roof, Inline floor mounting, wall mounting, ceiling mounting, for roof, Inline floor mounting, wall mounting, ceiling mounting, for roof, Inline floor mounting, wall mounting, ceiling mounting, for roof, Inline floor mounting, wall mounting, ceiling mounting, for roof, Inline -
Files archieve
Downloads
Name
Catalogue "Axial fans VPVO. Axial smoke extraction fans VDO." (pdf 32.36Mb)
Brochure "Axial smoke extraction fans VENTS VDO" (pdf 12.82Mb)
Download high quality image "VENTS VDO" (psd 4.04Mb)
Download image "VENTS VDO" for your website (png 325.12Kb)
Modifications
Modification name
VDO-900-6D/0,75-8/20/AL
VDO-900-6D/1,1-8/25/AL
VDO-900-6D/1,5-8/30/AL
VDO-900-6D/1,5-8/32,5/AL
VDO-900-6D/2,2-8/35/AL
VDO-900-6D/2,2-8/37,5/AL
VDO-900-6D/2,2-8/40/AL
VDO-900-6D/3-8/45/AL
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+
+
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+
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+
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Dimensions
Characteristics
Parameter Value Measurement unit
Additional diagrams
Additional diagrams
Curve number on graph Model
1 VDO-900-6D/0,75-8/20/AL
2 VDO-900-6D/1,1-8/25/AL
3 VDO-900-6D/1,5-8/30/AL
4 VDO-900-6D/1,5-8/32,5/AL
5 VDO-900-6D/2,2-8/35/AL
6 VDO-900-6D/2,2-8/37,5/AL
7 VDO-900-6D/2,2-8/40/AL
8 VDO-900-6D/3-8/45/AL

 

Dimensions
Dimensions

Designation key
Designation key

Accessories
Accessories
Fan Ø 400 Ø 450 Ø 500 Ø 560 Ø 630 Ø 710 Ø 800 Ø 900 Ø 1000 Ø 1120 Ø 1250
Carrier O-VO-400 O-VO-450 O-VO-500 O-VO-560 O-VO-630 O-VO-710 O-VO-800 O-VO-900 O-VO-1000 O-VO-1120 O-VO-1250
Flange F-VO-400 F-VO-450 F-VO-500 F-VO-560 F-VO-630 F-VO-710 F-VO-800 F-VO-900 F-VO-1000 F-VO-1120 F-VO-1250
Flexible joint VVGF-VO-400 VVGF-VO-450 VVGF-VO-500 VVGF-VO-560 VVGF-VO-630 VVGF-VO-710 VVGF-VO-800 VVGF-VO-900 VVGF-VO-1000 VVGF-VO-1120 VVGF-VO-1250
Flexible joint up to 400 °С VVGF-VO-400 - 400/2 VVGF-VO-450 - 400/2 VVGF-VO-500 - 400/2 VVGF-VO-560 - 400/2 VVGF-VO-630 - 400/2 VVGF-VO-710 - 400/2 VVGF-VO-800 - 400/2 VVGF-VO-900 - 400/2 VVGF-VO-1000 - 400/2 VVGF-VO-1120 - 400/2 VVGF-VO-1250 - 400/2
Hood Z-VO-400 Z-VO-450 Z-VO-500 Z-VO-560 Z-VO-630 Z-VO-710 Z-VO-800 Z-VO-900 Z-VO-1000 Z-VO-1120 Z-VO-1250
Roof adapter PK-VO-400 PK-VO-450 PK-VO-500 PK-VO-560 PK-VO-630 PK-VO-710 PK-VO-800 PK-VO-900 PK-VO-1000 PK-VO-1120 PK-VO-1250
Mounting curb SM-VO-400-450 SM-VO-500 SM-VO-560-630 SM-VO-710-800 SM-VO-900 SM-VO-1000-1120 SM-VO-1250
Inlet cone VK-VO-400 VK-VO-450 VK-VO-500 VK-VO-560 VK-VO-630 VK-VO-710 VK-VO-800 VK-VO-900 VK-VO-1000 VK-VO-1120 VK-VO-1250
Backdraft damper КОМ-VО-400
KOM-VO-400-400/2
КОМ-VО-450
KOM-VO-450-400/2
КОМ-VО-500
KOM-VO-500-400/2
КОМ-VО-560
KOM-VO-560-400/2
КОМ-VО-630
KOM-VO-630-400/2
КОМ-VО-710
KOM-VO-710-400/2
КОМ-VО-800
KOM-VO-800-400/2
КОМ-VО-900
KOM-VO-900-400/2
КОМ-VО-1000
KOM-VO-1000-400/2
КОМ-VО-1120
KOM-VO-1120-400/2
КОМ-VО-1250
KOM-VO-1250-400/2
Backdraft damper КОМ1-VО-400 КОМ1-VО-450 КОМ1-VО-500 КОМ1-VО-560 КОМ1-VО-630 КОМ1-VО-710 КОМ1-VО-800 КОМ1-VО-900 КОМ1-VО-1000 КОМ1-VО-1120 КОМ1-VО-1250
Silencer SR-400-1D SR-450-1D SR-500-1D SR-560-1D SR-630-1D SR-710-1D SR-800-1D SR-900-1D SR-1000-1D SR-1120-1D SR-1250-1D
SR-400-1.5D SR-450-1.5D SR-500-1.5D SR-560-1.5D SR-630-1.5D SR-710-1.5D SR-800-1.5D SR-900-1.5D SR-1000-1.5D SR-1120-1.5D SR-1250-1.5D
SR-400-2D SR-450-2D SR-500-2D SR-560-2D SR-630-2D SR-710-2D SR-800-2D SR-900-2D SR-1000-2D SR-1120-2D SR-1250-2D
Silencer SRV-400-1D SRV-450-1D SRV-500-1D SRV-560-1D SRV-630-1D SRV-710-1D SRV-800-1D SRV-900-1D SRV-1000-1D SRV-1120-1D SRV-1250-1D
SRV-400-1.5D SRV-450-1.5D SRV-500-1.5D SRV-560-1.5D SRV-630-1.5D SRV-710-1.5D SRV-800-1.5D SRV-900-1.5D SRV-1000-1.5D SRV-1120-1.5D SRV-1250-1.5D
SRV-400-2D SRV-450-2D SRV-500-2D SRV-560-2D SRV-630-2D SRV-710-2D SRV-800-2D SRV-900-2D SRV-1000-2D SRV-1120-2D SRV-1250-2D
Protective mesh SZ-VO-400 SZ-VO-450 SZ-VO-500 SZ-VO-560 SZ-VO-630 SZ-VO-710 SZ-VO-800 SZ-VO-900 SZ-VO-1000 SZ-VO-1120 SZ-VO-1250
Spring-loaded antivibration mount  VVCp*
Rubber antivibration mount VVCr*

* selection according to the fan weight

Operation of fans with frequency converters
Operation of fans with frequency converters
  • Ventilation systems produce a heavy load on the electrical systems of a building.
  • Therefore, reducing the power consumption is among the top priorities for construction project designers.
DIRECT ON-LINE STARTING (DOL) FREQUENCY CONVERTER
  • As a rule, smoke extraction systems utilize large high-performance fans. During starting the high inertia of the shaft causes a substantial increase in the start-up time - i.e. the time from the application of power to reaching the rated speed. As a result the motor is subjected to high starting current for a prolonged period of time.
Current diagram with direct on-line starting
  • Standard switchgear (automatic circuit breakers, contactors and motor starters) is not designed to withstand prolonged overloads causing the fan to shut down automatically during starting.
  • Using switchgear with a higher maximum current rating renders the electric motor protection system less sensitive.
  • As a result the switchgear will not be able to detect motor overload in time due to a higher current sensing threshold.
  • Such challenges can only be addressed by utilizing a soft starter or a frequency converter to start the fan without causing a prolonged overload.
Torque diagram with direct on-line starting
  • A frequency converter (FC) consists of two main component blocks. One converts alternating current (50 or 60 Hz) into direct current.
  • The other converts direct current into alternating current of variable frequency ranging from 0 to 250 Hz.
  • By controlling the frequency output the FC offers a broad range of motor speed regulation.
Current diagram with FC starting
  • During the starting the FC raises the frequency from 0 Hz to the electrical mains frequency (50 or 60 Hz).
  • As the frequency is increased gradually, the motor can be assumed to operate at its nominal speed for a given frequency value.
  • Furthermore, on the assumption that the motor runs at its nominal speed the nominal torque should be immediately available whereas the current will be approximately equal to the nominal value.
Torque diagram with FC starting
   
SOFT STARTER APPLICATIONS IN VENTILATION SYSTEMS
  • Unlike an FC, a soft starter does not change the frequency of speed.
  • Instead it gradually increases the voltage supplied to the motor - from the initial level to the nominal level.
Current diagram with soft starter

 

Torque diagram with soft starter
  • The very low voltage initially supplied to the motor during starting helps avoid sudden jolts.
  • Both voltage and torque increase gradually.
  • Using an FC or a soft starter allows to reduce the starting current thereby avoiding a loss of voltage in the electrical mains.
  • In addition to that the starting torque and mechanical strain on equipment are also reduced which translates into extended maintenance and repair intervals.
  • General exhaust ventilation (GV) systems and emergency smoke extraction (SE) systems of car parks, warehouses, utility and industrial spaces can be integrated into a single system at the design level.
  • As the air flow rate a GV system is considerably lower than that in an SE system a high-capacity fan rated for smoke extraction duty runs in partial load mode.
  • Frequency converters can be programmed for several fixed-speed settings to enable operation in GV and SE modes.
  • The fan operating modes can be switched upon receiving an external signal from the control system.
  • Such integration of ventilation systems allows overall cost savings.

 

FC-51 AND FC-101: WHEN TO USE?
  • Below you can find two series of frequency converters: FC-51 and FC-101.
  • The FC-51 series is only suitable for general ventilation systems.
  • If intended for a smoke extraction system, the fans should be fitted with the FC-101 series units as they feature an integrated fire mode.
  • When activated the integrated protection equipment of the frequency converter is overridden enabling the unit to continue operation despite the possibility of sustaining irreparable damage due to overheating or overloading.
  • In case of a fire, the FC-101 series frequency converters are capable of maintaining a higher air pressure level at landings compared to other areas of the building in order to keep the landings smoke-free.
   
MICRO DRIVE FC-51 FREQUENCY CONVERTER BASIC DRIVE FC-101 FREQUENCY CONVERTER
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