AH Step Controlled Valves

    Self adjustable extract valve with humidity sensor

    • Normal/Max airflow

    • Humidity sensor

    • Nominal air flow at 80 Pa

    • Vertical and horizontal installation


    Operation

    The valve continuously adjusts its airflow between the Normal and Maximum settings according to the humidity level in the extract air. They are ideally suited for central exhaust ventilation systems.

    Easy installation

    The valve features an internal construction suitable for both vertical and horizontal installation. It is available with Ø100 or Ø125 mm circular duct connections.

    Description

    AH is a residential extract valve designed for central exhaust ventilation systems. The valve continuously adjusts its airflow between the Normal and Maximum settings according to the humidity level in the extract air. The Nominal airflow rate is achieved at approximately 80 Pa. The actual airflow depends on the static pressure in the duct system and humidity level. Typical applications include bathrooms, kitchens, and other rooms with fluctuating humidity levels in residential buildings, hotels, and office premises

    Highlights

    • Normal/Max airflow

    • Humidity sensor

    • Nominal air flow at 80 Pa

    • Vertical and horizontal installation

    Installation

    AH is suitable for vertical or horizontal installation and is designed for connection to a Ø100 mm or Ø125 mm circular duct.

    Design

    AH valve is manufactured from white polystyrene. Circular connection is equipped with a rubber gasket to ensure an airtight connection.

    Operation

    A humidity level below 25% RH provides standard ventilation at the Normal airflow rate. The valve continuously adjusts its airflow between the Normal and Maximum settings according to the humidity level of the extract air. The Maximum airflow rate is achieved at 60% RH.

    AH Step Controlled Valves · Systemair