System Outline

When all of the following conditions are met, the PTC heater operates.

• The engine coolant temp. has reached the specified temperature.
• The engine RPM has exceeded the specified RPM for more than 5 seconds continuously.
• The max hot SW is on.

If any of the above conditions change, the PTC heater stops. The PTC heater is turned on/off according to the generator's charge/discharge condition.