Cause

No value was stored for at least one of the following project listed properties that are required for the air-conditioning calculation at the enclosure:

• Thermal design: Simultaneity factor
• Thermal design: Voltage
• Thermal design: Frequency.

Solution

1. Select the menu items Project > Properties and check in the Properties tab for which of the above listed projects the value is not entered.
2. Add the missing value(s).
3. Click [OK] to close the dialog of the project properties, and then start a new check run.