S6 Series Installation and Commissioning Pro Tips

Please use this guide for the installation and commissioning S6 hybrid inverters.

Preparation before installation

  • The inverter is heavy. Please take the necessary measures for personnel safety during handling and installation.
  • Install the inverter in a safe location where there is easy ventilation for heat dissipation as well as avoiding direct sunlight.
  • Make sure that no high voltage conductors are energized.
  • Exposure to direct sunlight may cause output power derating due to overheating It is recommended to avoid installing the inverter in direct sunlight. The ideal location is one where the ambient temperature does not exceed 40°C (140°F).
  • It is also recommended to install the inverter somewhere the rain or snow will not land directly on it.
  • When running, there may be risks of high temperatures and voltage. It is recommended to install the inverter in a location that not easily accessible.

DC Side Connection

  • Before connecting the inverter, please ensure that the open circuit voltage of the PV strings do not exceed the limit of the inverter. Max. input voltage is 600 V while the startup voltage is 80V.
  • DC block is located on the left side inside the inverter's wire box. 
  • Each PV string input is a separate MPPT.

Rapid Shutdown

The inverter comes (optional) with an internal rapid shutdown transmitter. This transmitter brand must match the receivers that are being installed with the PV modules. Not abiding by this will void the inverter warranty.

Commissioning Procedure

  1.  With the DC switch off, energize the PV strings and then measure DC voltage of the PV strings to verify that the voltage and polarity are correct. Turn on the battery and check the battery voltage and polarity as well. If RSD is being used, the PV strings will be at safety voltage (~0.6-0.6Vdc per module in the string). 
  2. Turn on the OCPD (AC breaker)  for the system and then measure the AC voltages line to line and line to neutral. The backup side of the system will be off until commissioning is complete. Turn the OCPD back off for now.
  3. Turn the DC switch on and then the OCPD (AC breaker) for the system. If you are using rapid shutdown, the voltage should increase after a few seconds. If it does not, give the rapid shutdown initiation switch a clockwise turn so that it pops out.
  4. Turn your phone Bluetooth on and then open the SolisCloud app. Go to “Me”, then tap “Tool”, then “Local Operation”, and then tap ”Connect with Bluetooth”.

    Search for nearby Bluetooth devices. Then tap BR2262e-S (note: if this device does not appear, be sure the inverter is at least getting start-up DC voltage). The next screen will prompt you to create a six-character password. The password must be exactly six characters. Once you set the password, tap “Set Enable”. You should then be given the message “Connection succeeded’ and then brought to the main interface page.
    It is highly recommended to write down the password on paper and leave it inside of the inverter wire box. This is so that the password never gets lost or forgotten and can be easily accessed by other technicians.

  5. If this is the first time the inverter has been commissioned, you will need to first go through the Quick Settings. Once this has been done, these settings can be changed later.

        A. Inverter Time: Set the Inverter Time and date. It may be easier to tap the slider next to “Follow Phone Time”. Then tap Next in the top right corner. This will set the inverter to match your phone.

        B. Battery Model: Now select the battery model connected to the inverter. This choice must be based on the battery model that is actually connected to the inverter. If there is no battery connected for the moment, select “No Battery” to avoid potential alarms codes.

        C. Meter Setting: Set both the Meter Type and the Meter Location. For US installations, this will be “Acrel 1P Meter” for the type and “Meter in Grid” for the location.

           D. Grid Code: Systems in the US should either be on UL-240V-A2, R21P3-24A (CA Rule 21), or ISONE-24A. The default         US standard is UL-240V-A2. Check with your local authority having jurisdiction (AHJ) to determine which grid code the         inverter should be set to. If your AHJ requires Rule 21, then the code you select should be R21P3-24A. If your state abides     by ISO New England standards, then select the ISONE-24A code. If your AHJ does not require Rule 21 or ISO New England standards, then UL-240V-A2 will be sufficient.

Note: The customer is fully liable for any modifications made to the system; therefore, any hardware or software modification, manipulation, or alteration not expressly approved by the manufacturer shall result in the immediate cancellation of the warranty.

Luis is the author of this solution article.

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