Change the AFAM Rate

Note The fresh air exchange rate should be established by the shipper.

The AFAM rate sets the desired air exchange rate. The actual door position is based on the AFAM rate and the power supply frequency (Hertz).

  1. Press the F4 key to enter the main menu. Press the F2 or F3 key to scroll to Controls menu and Press F4 to expand the menu.

  2. Press the F2 or F3 key to scroll to AFAM RATE. Press F4 to enter menu. The current rate and units (e.g. “0 CMH”) appears in the display.

      Warning
    • Risk of Injury
    • The vent door immediately closes and re-opens to the new position when a rate is entered. Keep hands and tools away from the air exchange system components to prevent personal injury or unit damage.
  3. Press the F2 or F3 key to increase or decrease the AFAM Rate.

  4. Press and hold the F4 key until returned to the main menu. The new rate is recorded in the controller and appears in the display.