40

UnclassifiedCooling

What This Code Means

Reduced performance due to high altitude; Reduced performance due to high temperature; Reduced generator output; Performance degradation; Generator derating

Possible Causes

  • •Operation above 3000 ft (914m) from sea level
  • •Ambient temperature above 104 °F (40 °C)
  • •Altitude above 3000 ft (914m)
  • •Altitude above 3000 ft (914m) from sea level
  • •Temperature above 104 °F (40 °C)

Suggested Actions

  1. 1Derate generator 3% per 1000 ft (305m) above 3000 ft
  2. 2Derate generator 2% per 10 °F (5.6 °C) above 104 °F
  3. 3Derate generator 3% per 1000 ft (305m) above 3000 ft (914m) from sea level
  4. 4Derate generator 2% per 10 °F (5.6 °C) above 104 °F (40 °C)

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