Design of the coolant inlet temperature

Notice

Performance reduction if
coolant inlet temperatures are too high

At coolant inlet temperatures above the maximum
coolant inlet temperature, the performance of the motor is reduced.

  • Refer to the technical data in the respective product data sheet for the maximum coolant inlet temperatures.

Notice

Damage due to condensation

Condensation on the motor must be avoided. Low
coolant inlet temperatures promote the formation of condensation on and in the cooled component.

  • A temperature above the dew point temperature must be ensured as the minimum coolant inlet temperature
Design of the coolant inlet temperature 1:
Dew point TD as a function of ambient temperature and relative air humidity φ
Design of the coolant inlet temperature 2:

Example: Determining the inlet temperature of the coolant

Dew point as a function of ambient temperature and relative air humidity.

  • Ambient temperature: 20 °C
  • Relative air humidity φ: 55 %
  • Dew point temperature TD: approx. 11 °C