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    VENTS OV 250 EC

    VENTS OV 250 EC
    • VENTS OV 250 EC
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    • VENTS OV 250 EC
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    Low pressure axial fan in the steel casing with the air flow up to 1550 m3/h for wall mounting and duct mounting.
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    • Description
    • Characteristics
    • Capacity diagram
    • Downloads
    • Dimensions
    • Additional technical data
    • Designation key
    Description
    Description
    APPLICATIONS
    • Combined supply and exhaust ventilation systems for various premises where high air flow at relatively low system resistance is required.
    • OV EC fans can be used for the direct air exhaust or pressurization in smoke ventilation systems.
    • OV EC fan are suitable for outdoor wall mounting.
    DESIGN
    • The fan casing and the impeller are made of steel with polymeric coating.
    • OV EC fan terminal box is equipped with a cable for remote connection.
    MOTOR
    • The units are equipped with highly efficient electronically commutated EC motors.
    • 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.
    • Ball bearings in the motor provide long service life designed for at least 40000 hours.
    • Motor protection rating IP55.
    SPEED CONTROL
    • The fan is controlled with the external control signal 0-10 V (air flow 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 flow to the ventilation system as required.
    MOUNTING
    • Fan is installed on the wall surface by means of a square mounting plate.
    • The fan is powered through the external remote terminal box.
    • Power supply and installation shall be performed in compliance with the manual and wiring diagram on the terminal box.
    Characteristics
    Characteristics
    Parameter OV 250 EC
    		 Measurement unit
    Phase 1 ˜
    Voltage 230 V
    Frequency 50/60 Hz
    Current 0.61 A
    Maximum air capacity 431 l/s
    Power consumption 85 W
    Maximum air capacity 1550 m³/h
    RPM 2480 min-1
    Motor protection rating IP55 -
    Weight 2.54 kg
    Transported air temperature -25 ... +60 °С
    Sound pressure level at 3 m distance 50 dBА
    IP Code IP X5 -
    Connection diameter 260 mm
    Capacity diagram
    Capacity diagram
    • Selection method:
    • Air flow:
    • Pressure:
    Operating point
    • Air flow: --
    • Pressure: ---
    Files archieve
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    Name
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    "VENTS OV EC, OVK EC" product description 12-2023 (pdf 1.31Mb)
    Download high quality image "VENTS OV EC" (psd 1.72Mb)
    Download image "VENTS OV EC" for your website (png 422.29Kb)
    "VENTS OV EC, OVK EC" user's manual 12-2023 (V275EN-01) (pdf 2.05Mb)
    Dimensions
    Characteristics
    VENTS OV 250 EC
    Parameter Value Measurement unit
    ∅D 262 mm
    Ø D1 325 mm
    ∅d1 7 mm
    L 81 mm
    L1 93 mm
    W 370 mm
    W1 320 mm
    Additional technical data
    Additional technical data
    Sound-power level, A-weighted Gen. Octave-frequency band [Hz] LpA, 3 m dBA LpA, 1 m dBA
    dBA 63 125 250 500 1000 2000 4000 8000
    LwA to environment dBA 71 56 68 66 60 58 50 37 31 50 60
    Designation key
    Designation key
    Series and modification Dimension type Motor
    VENTS OV: square mounting plate 200; 250; 300; 350; 400; 450; 500 _: single-speed
    S: highpowered motor
    EC: electronically commutated synchronous motor
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