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    Roof extractors centrifugal self-regulated
    CRVB ECOWATT PLUS SERIES

    CRVB-355 ECOWATT PLUS (230V50/60HZ) VE

    Centrifugal roof mounted fan in vertical discharge format fitted with:
    - EC external rotor motor.
    - Centrifugal backward curved impeller.
    - Steel finger guard.
    - Base manufactured from galvanized sheet steel.
    Cowl manufactured from spun aluminium with very low profile design.
    - ON-OFF electrical isolated switched.

    And supplies with integral control to enable the fan operating in 4 different modes:
    - Constant pressure mode.
    - Constant volume mode.
    - Proportional mode.
    - Min-max mode.

    Integrated control
    - Possibility to connect up to 32 fans together to design a fan network which can be adjusted and controlled with only one remote control.
    - 2 analogue inputs, 0-10V or 4-20mA.
    - 1 digital input (Night position - min-max operating mode).
    - Main supply: 1~230V±15% 50/60Hz.
    - Remote control (PROSYS), to adjust settings, as accessories.

    Constant pressure operating mode
    - Minimum fan speed between 0-50%.
    - Maximum fan speed between 50-100%.
    - Night position adjustable between 25-100% of the pressure in high speed.

    Constant volume operating mode
    - Minimum fan speed between 0-50%.
    - Maximum fan speed between 50-100%.
    - Night position adjustable between 50-100% of the volume in high speed.

    Proportional operating mode
    - 2 analogical inputs 0-10V or 4-20mA.
    - The control operates in function of the maximum demand parameter.
    - Minimum fan speed between 0-50%.
    - Maximum fan speed between 50-100%.
    - Alarm relay output.

    Min-max operating mode
    - Function of the contact position connected to digital input, the fan runs at high speed or at low speed.
    - Minimum fan speed between 0-50%.
    - Maximum fan speed between 50-100%.
    CRVB-355 ECOWATT PLUS (230V50/60HZ) VE

    Backward curved centrifugal impellers
    To prevent accumulation of dirt.

    Bird proof guard

    Remote control PROSYS ECOWATT
    To modify parameters and adjust setting values.

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    Instructions