Dometic MPPT 30 A User Manual
Dometic MPPT 30 A User Manual

Dometic MPPT 30 A User Manual

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DOMETIC MPPT 30 A & 40 A
SOLAR CONTROLLER
User Manual
SC-DB-MPPT-30
SC-DB-MPPT-40
© 2025 Dometic Mobile Power Solutions
Manual_SC-DB-MPPT
*Product may not appear exactly as shown

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  • Page 1 DOMETIC MPPT 30 A & 40 A SOLAR CONTROLLER User Manual SC-DB-MPPT-30 SC-DB-MPPT-40 © 2025 Dometic Mobile Power Solutions *Product may not appear exactly as shown Manual_SC-DB-MPPT...
  • Page 2: Table Of Contents

    CONTENTS ABOUT THIS MANUAL ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������3 GENERAL SAFETY INFORMATION �������������������������������������������������������������������������������������������������������������������������������������������������������������3 SAFETY PRECAUTIONS �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������3 1� PRODUCT OVERVIEW ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������5 1�1 GENERAL DESCRIPTION ������������������������������������������������������������������������������������������������������������������������������������������������������������������������5 1�2 FEATURES ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������5 1�3 WHAT’S INCLUDED �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������5 1�4 DIMENSIONS ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������6 1�5 REGULATORY INFORMATION ����������������������������������������������������������������������������������������������������������������������������������������������������������������7 1�6 SPECIFICATIONS �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������7 1�7 MAXIMUM POWER POINT TRACKING (MPPT) TECHNOLOGY �����������������������������������������������������������������������������������������������������������������8 1�8 SYSTEM VOLTAGE AND CURRENT ���������������������������������������������������������������������������������������������������������������������������������������������������������9 1�9...
  • Page 3: About This Manual

    ABOUT THIS MANUAL Thank you for choosing this Dometic Solar Controller� This manual will provide you with all the information you need to properly install and use your solar controller� This manual contains important information about the safe installation and operation of the solar controller�...
  • Page 4 Reverse polarity of the battery terminals and/or solar array will cause the Warning: controller to display a warning� The controller will not function unless Observe correct polarity at all battery terminals are connected to a battery with proper polarity� Failure times to correct this fault could damage the controller�...
  • Page 5: Product Overview

    1. PRODUCT OVERVIEW 1�1 GENERAL DESCRIPTION A solar controller, also known as a charge controller or regulator, is an essential component of your photovoltaic solar system� The controller maintains the life of the battery by protecting it from overcharging and maximizes the power usage from your solar panel� When your battery has reached a 100% state of charge, the controller prevents overcharging by limiting the current flowing into the batteries from your solar array�...
  • Page 6: Dimensions

    PRODUCT OVERVIEW 1�4 DIMENSIONS The dimensioned drawing is not to scale� Refer to the appendix for the mounting template� Note [page 6]...
  • Page 7: 1�5 Regulatory Information

    PRODUCT OVERVIEW 1�5 REGULATORY INFORMATION Certified to CSA Std� C22�2 No� 107�1 1�6 SPECIFICATIONS DESCRIPTION SC-DB-MPPT-30 SC-DB-MPPT-40 Nominal System Voltage 12/24 V Temperature Compensation -24 mv/°C (configurable), none for Lithium batteries Battery Voltage Range 8 – 32 V Maximum Total Charge Current 30 A 40 A Maximum Secondary Charge Current...
  • Page 8: 1�7 Maximum Power Point Tracking (Mppt) Technology

    PRODUCT OVERVIEW 1�7 MAXIMUM POWER POINT TRACKING (MPPT) TECHNOLOGY Maximum power point tracking (MPPT) is an advanced charging technology that efficiently harvests power from solar panels in all conditions� This is achieved by continuously tracking the I-V curve of the solar array and modifying operating conditions to maximize output power�...
  • Page 9: 1�8 System Voltage And Current

    PRODUCT OVERVIEW The corresponding graph below shows local maximum power points (LMPP) and the global maximum power point (GMPP) that will result in maximum energy transfer� The SC-DB-MPPT controllers have a smart algorithm that will always choose the correct peak� The SC-DB-MPPT controller has an MPPT efficiency of up to 99�9 %, meaning there is no wasted potential from your solar panels�...
  • Page 10: 1�12 Battery Charging Stages

    PRODUCT OVERVIEW 1�12 BATTERY CHARGING STAGES Maximum power point tracking is used to charge the batteries with the highest current possible, but this is only part of the equation� The multistage battery charger can use up to four different charging stages to help monitor and keep the batteries healthy� These stages include bulk, absorption, float and, for some types of batteries, equalization�...
  • Page 11 PRODUCT OVERVIEW Certain battery types benefit from equalization charging to stir up stratified electrolyte and to reverse any battery plate sulfation that may have occurred� The equalization charge increases the battery voltage above a standard voltage, causing vaporization of battery electrolyte�...
  • Page 12: Pre-Installation

    PRE-INSTALLATION 2�1 CHOOSING AN INSTALLATION LOCATION The SC-DB-MPPT controller is designed to be mounted flush against a wall, out of the way, but easily visible with an unobstructed view of the status LEDs� The SC-DB-MPPT must be installed in a location that meets the following requirements� •...
  • Page 13: 3�4 Solar Controller Wiring

    INSTALLATION INSTRUCTIONS 3�3�1 WIRE GAUGE & FUSE SIZING The table below outlines the suggested minimum wire gauge and maximum fuse size with a 25 ft maximum length from the solar array to the battery bank� The wire length between the battery bank and the solar controller should be maximum 10ft� PARAMETER SC-DB-MPPT-30 SC-DB-MPPT-40...
  • Page 14: Rv-C Connection

    INSTALLATION INSTRUCTIONS 2� Remove the cover from the solar controller� Refer to the wiring diagram above or terminal ID label on the inside of the removable cover for connection details� The wires will be connected with the push-in cage clamps� To do so, lift the orange lever until it is perpendicular with Note the terminals and insert the wire into the terminal�...
  • Page 15: Operation

    The PowerTrak Display is the remote required for controlling the settings on the SC-DB-MPPT and viewing system details� The SC- DB-MPPT and the PowerTrak Display (sold separately) are compatible with the Dometic PowerTrak system� The PowerTrak system technology ensures compatible devices work together to optimize power flow and efficiency� This section will outline connection and basic operation of the PowerTrak Display�...
  • Page 16 The PowerTrak devices are connected via RV-C harnessing (sold separately)� The wiring diagram below shows the connection details for a system with a SC-DB-MPPT and a PowerTrak Display� The adapter harness (83438) is included with the PowerTrak Display� All other RV-C harnesses must be purchased Note separately from Dometic� PowerTrak Display SC-DB-MPPT Controller 83438...
  • Page 17 OPERATION If your power system contains other RV-C compatible devices, you may require a different combination of RV-C harnesses� Please refer to our RV-C Configurator through the QR code below to determine which cables are required for your system� Contact technical support at 1-866-247-6527 if you are unsure about the RV-C requirements for your system�...
  • Page 18: 4�5 Using The Connect App

    OPERATION 4�5 USING THE CONNECT APP Scan the QR code to access the download page for the Connect app� 4�5�1 CONNECTING THE POWERTRAK DISPLAY TO THE APP 1� Use the + button to pair the PowerTrak Display with the app� Ensure that the BLE function is enabled in the PowerTrak Display settings, and that location and BLE are enabled on Note your device�...
  • Page 19 OPERATION 4�5�2 ACCESSING THE SOLAR SETTINGS 1� Press the CONNECT button that corresponds to the SC-DB-MPPT� 2� The main status screen for the SC-DB-MPPT will be displayed� The history and details tabs can be pressed to display more details about the controller� [page 19]...
  • Page 20 OPERATION 3� Press the button to access the solar settings� Press the setting you would like to change, and follow the app instructions� 4� If a custom battery type is selected, the following settings will be available� [page 20]...
  • Page 21: Maintenance

    MAINTENANCE Maintaining your solar charge controller is essential to ensure it operates efficiently and effectively� We recommend following these maintenance protocols once every six (6) months: • Inspecting the controller: Check the charge controller regularly to see if it’s in good condition� Inspect the wires, terminals, and other parts for damage or wear�...
  • Page 22: 6�2 Problems With Current

    TROUBLESHOOTING 6�2 PROBLEMS WITH CURRENT Current Reading: Less than expected Time of Day: Daytime, clear sunny skies Possible Cause: • Current is being limited as per normal operation due to over temperature, or charging stage� • Incorrect series/parallel solar panel configuration and/or wiring connections and/or wire gauge (for multiple panel systems)� •...
  • Page 23: Limited Warranty

    TROUBLESHOOTING LIMITED WARRANTY The Dometic warranty is valid against defects in materials and workmanship for the specific product warranty period� It is not valid against defects resulting from, but not limited to: • Misuse and/or abuse, neglect, or accident� • Exceeding the unit’s design limits�...
  • Page 24: Appendix

    8� APPENDIX 8�1 MOUNTING TEMPLATE 4.72 120.0 6.97 177.1 UNLESS OTHERWISE SPECIFIED PROPRIETARY DO NOT SCALE DRAWING THE INFORMATION CONT THIS DRAWING IS THE INTERPRET DIMENSIONS AND TOLERANCES [page 24] PER ASME Y14.100-2000 PROPERTY OF VALTE TOLERANCES APPLY AS SHOWN BELOW PRODUCTS, LCC.
  • Page 25 © 2025 Dometic Mobile Power Solutions Manual_SC-DB-MPPT...

This manual is also suitable for:

Mppt 40 aSc-db-mppt-30Sc-db-mppt-40

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