Seat 819700 User Manual
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Seat 819700 User Manual

Fume hood controller type a
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Fume Hood Controller
Type A
REF 819700/819701
The type A controller is a safety device for monitoring a fixed air flow.
A speed sensor is used to determine the flow rate. Audible and visual alarm is set off in
case of insufficient speed or too high window height and other conditions.
The HMI allows to control the ventilation of the fume cupboard and to make the
adjustments on site.
This controller complies with standard EN 14175 and RoHS.

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Summary of Contents for Seat 819700

  • Page 1 Fume Hood Controller Type A REF 819700/819701 The type A controller is a safety device for monitoring a fixed air flow. A speed sensor is used to determine the flow rate. Audible and visual alarm is set off in case of insufficient speed or too high window height and other conditions.

  • Page 2: Table Of Contents

    Table of contents Presentation ............................ 3 1.1. Front panel ..........................3 1.2. Electronic panel ........................... 3 1.3. Schematic diagram ........................4 1.4. Connectors specifications ......................5 Installation and mounting ....................... 6 2.1. Dimensions ..........................6 2.2. Positioning on the fume hood ..................... 7 2.3.

  • Page 3: Presentation

    1. Presentation The type A flow controller is an electronic unit that can be easily installed on all fume hood. The front panel controls the ventilation while the rear panel provides wiring. 1.1. Front panel Display (Option) Yellow LED: ventilation ON/OFF Push-button: ventilation ON/OFF Push-button: stop buzzer Green LED: air flow OK...

  • Page 4: Schematic Diagram

    1.3. Schematic diagram Power Motor contactor power supply Velocity probe Switch sash position 220v power supply The type A flow controller is used to control the air flow of a fume hood. Pressing the ON/OFF ventilation button on the remote interface closes the two relays VENT 1 and VENT 2, which supplies the fan via a power contactor.

  • Page 5: Connectors Specifications

    1.4. Connectors specifications Power supply Electrical transformer 230v/12v 500mA. (delivered with) VENT1/FAN1 ON/OFF ventilation relay driving by Disconnection voltage : 120v Disconnection current : 0.5 A VENT2/FAN2 Same VENT1 LIGHT ON/OFF lighting relay driving by Disconnection voltage : 220v Disconnection current : 3 A ALARM Relay controlled by alarm activation.

  • Page 6: Installation And Mounting

    2. Installation and mounting 2.1. Dimensions 75mm 34mm 210mm (Front and side view with surface box mounting) 65 mm 28 mm 40 mm 22 mm Speed sensor...

  • Page 7: Positioning On The Fume Hood

    2.2. Positioning on the fume hood ◌ Vertical HMI are usually attached to the side frame of fume hoods. Horizontal HMI’s can be set at the user’s convenience. ◌ The sash contact must be fixed so that it sets off when the sash exceeds 400mm or 500mm.

  • Page 8: Cutting Template

    2.3. Cutting template If you want to install your fume hood controller without the surface box mounting, you will need to make the following cuts: 67mm 173mm...

  • Page 9: Installation Tips

    2.4. Installation tips • Do not install the sensor on the extraction tube above the fume hood • Avoid installing the sensor in a dead zone of the fume cupboard • The probe must pass entirely through the fume cupboard ceiling. Otherwise, you must use a 25mm PVC tube to extend the outlet.

  • Page 10: Wiring Diagram

    3. Wiring diagram 220v power supply ON/OFF ventilation Power supply Switch sash position...

  • Page 11: Adjustment Procedure

    4. Adjustment procedure Alarm threshold setting Switch on ventilation with Sash opened Lift up the sash in high position (400 or 500 mm). Wait 15 seconds for the air speed to stabilize. Enter the setting mode: Press for at least 3 seconds on release and then press simultaneously on shortly.

  • Page 12: Factory Reset

    Press the push-button on the electronic board to synchronize the speed reading on the anemometer and the speed displayed on the controller. One push increase by 0.1 m/s over a range of 0.3 to 0.7 m/s. After adjustment, a long press on allows to validate the alarm threshold 0.1 m/s below the speed measured by the controller and to exit the setting mode.

  • Page 13: Change The Audible Alarme Delay

    7. Change the audible alarme delay It is possible on the rear face to change the buzzer’s activation time with the two switches. 1 = ON: Alarm still active 1 = OFF: Alarm disabled if ventilation is off 2 = ON: delay set at 30s 2 = OFF: delay set at 15s 8.

  • Page 14: Faq

    9. FAQ Questions Solutions Check that the power supply is correctly connected. No indicator Check that the controllers ON button is fully engaged and that The fan does not start the yellow light above is on. Check wiring. Check that the speed sensor is correctly connected to the The display shows "PB"...

  • Page 15: Maintenance

    Have an anemometer 11. Warranty SEAT Ventilation guarantees that its equipment, products and parts are free from manufacturing defects under normal conditions of use for a period of two years after delivery to the first user. If a factory return is required during the two years period from the date of purchase, contact your distributor.
  • Page 16 SEAT VENTILATION SAS PARC TECHNOLOGIQUE DELTA SUD 09340 VERNIOLLE France E-mail: info@seat-ventilation.com Site Web: www.seat-ventilation.com...

This manual is also suitable for:

819701

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