SunSaver Duo Field Test Document Version 1.0 June 2007 Morningstar Corporation 1098 Washington Crossing RD Washington Crossing, PA 18977 Technical questions: support@morningstarcorp.com General questions: info@morningstarcorp.
SunSaver Duo Field Test Document Contents Page 3 – Quick Check A short field test using system components to test the functionality of the SunSaver Duo. Page 5 – FAQ Answers to technical questions about SunSaver Duo operation and errors. Page 7 – Error Codes A detailed description / definition of error codes reported by the optional Remote Meter. Page 8 – Error Troubleshooting Diagram A flow diagram to diagnose Status LED error indications and incorrect LED indications. Morningstar Corporation 2 v1.
SunSaver Duo Field Test Document Quick Check Verify correct SunSaver Duo operation by following these few short steps. Disconnect both batteries and the solar panel(s) from the SunSaver Duo before proceeding.
SunSaver Duo Field Test Document ** Temperature compensation will skew the Absorption voltage value. In warm temperatures, the Absorption voltage will decrease. In cold temperatures, the Absorption voltage will increase.
SunSaver Duo Field Test Document FAQ Q: The SunSaver Duo seems to be working but my battery does not recharge (or recharges very slowly). Why? A: The recharge time depends on several factors: 1. Amount of current produced by the solar panel(s) –vs- the amount of power drained from the battery daily - If more power is drained from the battery by system loads than can be replaced by the solar panel, the battery will be at a constant state of discharge. 2.
SunSaver Duo Field Test Document other option is to program custom setpoints with a temperature compensation coefficient of 0. Refer to the SunSaver Duo Modbus Document for more information. Q: Can I repair the SunSaver Duo myself? A: No. In most cases the SunSaver Duo cannot be repaired. The circuits are encapsulated in epoxy for maximum environmental protection. The epoxy prevents easy access to circuit components. Attempting repair may void the factory warranty.
SunSaver Duo Field Test Document Error Codes E01 – Reverse Polarity, Solar Input The Solar panel is connected backwards to the SunSaver Duo Solar input connection. Disconnecting the solar panel should clear the error immediately. Reconnect with correct polarity. Use red wire for Solar positive (+) and black wire for Solar negative(-). If the reverse connection mistake is at the solar panel j-box, correct the mistake in the J-box so that the red wire is positive and black is negative.
SunSaver Duo Field Test Document Error Troubleshooting Diagram Morningstar Corporation 8 v1.
