ALTTUDE

The air pressure sensor in the control (operator) panel is reporting that the system is at an altitude above 4000 meters (about 13,210 feet).

Complete the following steps:

  1. Is the system in operation at an altitude above 4000 meters?
    • No: Continue with the next step.
    • Yes: The system is being operated outside the range of the system specifications. Move the system to an altitude lower than 4000 meters. This ends the procedure.
  2. The system is located at an altitude below 4000 meters. Are the environmental control systems in the building in which the system is located functioning correctly?
    • No: Fix any problems that are found. This ends the procedure.
    • Yes: Continue with the next step.
  3. Replace the control (operator) panel at location Un-D1. This ends the procedure.