Technical data
and startup
52
8.7
Cooling circuit Information and Warnings
INFORMATION
For correct operation, the following points have to be considered:
The mixing ratio of the coolant has to be at least 50% water and 50% glycol. Otherwise the
inverter will be destroyed at low temperatures!
The flow rate has to be between 6 l/min and 10 l/min!
If the particle size is over 0.2mm, the liquid pins get clogged!
The water pump must be active, even if the motor isn’t running when the inverter PWM is
active. The reason is, that the inverter also could clock when the vehicle is standing!
WARNING
When the abovementioned points based on the cooling getting ignored, the inverter will fail!
8.7.1
Cooling water filter
INSTRUCTION
For a proper cooling, please ensure the max. permissible particle size in the cooling water.
The max. allowable particle size in the cooling water is 0.2mm.
If this cannot be guaranteed, a water filter should be installed at the coolant inlet.
