Sargent EC200 Series Systems
Official technical documentation and workshop diagnostics for EC200 Series Systems .
Technical Specifications
Frequently Asked Questions
Q: Can I charge the vehicle battery from my system?
Our electronic PSU systems fall into two categories regarding vehicle battery charging: systems not based on CAN-bus and newer CAN-bus based systems. For Manual Charging only systems (PSU2007 with EC200, EC225 with EC100, EC325, EC328, EC155 with EC50/51, EC176 with EC361/2/3): The default battery is the leisure battery. If the control panel power button is OFF, the mains charger charges the leisure battery as soon as it is switched on. If you turn the control panel ON, the mains charger stays connected to the leisure battery to keep it charged and powers the leisure loads along with the leisure battery. If you wish to charge the vehicle battery from the mains charger, you need to turn the control panel ON and then select the vehicle battery. The charger will then charge the vehicle battery and any switched-on leisure loads. Note: On EC100, EC200, EC325, and EC50/51 control panels, you cannot select the vehicle battery if it is below 10.9V. On EC328 control panels (V2.21 software), if the vehicle battery is above 2V and the mains charger is switched on, it can be selected for charge. If the mains supply disconnects while charging the vehicle battery, leisure loads will draw current from and discharge the vehicle battery. If the voltage is under the 10.9V cut-off, it switches back to the leisure battery; if above, it switches back when it reaches 10.9V. The leisure battery has a 9V cut-off which disconnects leisure loads to prevent further discharge. For CAN-bus based systems (EC400, EC450, EC500, EC600, EC700, & EC800): These incorporate a smart charge feature which is on by default but can be disabled. When the mains charger is switched on, it connects by default to the leisure battery, but the vehicle battery is monitored. If the vehicle battery drops below 12.4V, the mains charger switches over to it for 4 hours, then drops back to the leisure battery for 4 hours, repeating if the vehicle battery is still below 12.4V. The smart charge feature does not require the control panel to be ON; as long as the system shutdown button is switched on, the feature operates unless disabled. If the control panel is ON, you can manually select the battery of choice on the control panel at any point in the charge cycle.
Q: Why does my EC155 control panel have flashing LED’s while I’m driving?
If you have the 2 LED’s flashing on the Leisure select & levels and the Vehicle select & levels while you are driving (on newer versions of the control panels with blue LEDs), this is completely normal and indicates that the EC155 is receiving an engine run signal and the internal split charge relay has engaged. In older versions of the control panel with green LEDs, the middle yellow LED will flash to indicate this. When the EC155 detects the engine run signal it also shuts down power to the 12v habitation system.