Interface module

Option Box V2 / V2 Lite

    The Zehnder Option Box enables the connection between the ventilation system and various other external components.


    • 4 x 0-10V inputs for use with the 12V 0-10V RH sensor or 12V 0-10V CO2 sensor
    • Volt free contact input
    • Post heater integration
    • ComfoFond-L Q or sub-soil heat exchanger valve integration
    • External filter alert integration
    • Service mode activation input to disable fans e.g. when fire alarm activated


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