Air Ventilation Logging (AVL)

The Air Ventilation Logging option detects vent disk movement and automatically displays a value on the display. This value is also logged in the datalogger. The entry records the time, date, and vent opening position. It is mounted on the fresh air vent door.

Configuration Instructions

The logging is automatic if the unit has been configured to record the vent door motion. To configure the unit, complete the following steps:

  1. Press the Esc key until the display returns to the unit status display (setpoint).

  2. Press the Enter key to enter the Main menu.

  3. Press the Up or Down key to scroll to the CONFIG menu. Press the Enter key to access.

  4. Press the Down key to scroll to Options. Press the Enter key to expand this menu. Press Down key to scroll to Controlled Atmosphere (CA).

  5. Press the Up or Down key until AVL is selected. Press and hold the Enter key until the display returns to the Controlled Atmosphere (CA) selection. The unit is now configured to log the vent door motion.

  6. Press the Esc key to exit the Options screen, and again to exit the Config screen.

AVL

Operating Instructions

The following automatically occurs when the vent recorder is enabled in the configurations menu and the vent door changes position:

  1. The LCD screen displays (for one minute) the message: [FRESH AIR POSITION SETTING XX CFM:]. Scroll the C/F key to view the door position in CFM (cubic feet per minute) or CMH (cubic meters per hour).

  2. An entry is automatically logged in the datalogger. The entry records the time, date, and vent opening position.