Operation Condition |
1. |
The power supplied to the PTC heater should be within DC 240V - 420V (high voltage). |
2. |
The power supplied to the PTC heater should be within 9.0V - 16.0V (low voltage). |
3. |
The interlcok and insulation resistance must be normal. |
4. |
The engine must be running. |
5. |
The high voltage PTC heater operates depending on the operating Duty output. |
6. |
If the high voltage PTC heater is abnormal, check the Fail Safe. |