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Table of Contents
Table of Contents....................................................................................................................................4
1. Introduction ........................................................................................................................................5
1.1 System overview ...........................................................................................................................5
1.2 Main system components.............................................................................................................6
1.3 Deciding on size of Elon system (basic guide)...............................................................................6
1.4 Deciding on size of solar array (expert guide) .............................................................................. 6
1.5 PV array and geyser (water heater) element matching (expert guide)......................................11
2. Installation ........................................................................................................................................12
2.1 Required tools.............................................................................................................................12
2.2 Basic wiring diagram ...................................................................................................................13
2.3 Solar PV array installation...........................................................................................................14
2.4 Elon 100 installation....................................................................................................................16
2.5 Element installation (retrofit) .....................................................................................................16
3. Operation..........................................................................................................................................17
3.1 Elon 100 Controller .....................................................................................................................17
3.2 Mains / solar indicator lights ......................................................................................................17
3.3 Efficiency dial ..............................................................................................................................17
3.4 Override button ..........................................................................................................................18
3.5 How to maximise your savings....................................................................................................18
4. Maintenance .....................................................................................................................................20
4.1 Solar PV module maintenance....................................................................................................20
5. Basic troubleshooting .......................................................................................................................21
Appendix A. Solar yield .........................................................................................................................23
A1. Solar irradiance levels.................................................................................................................23
A2. Geographic features ...................................................................................................................24
A3. Azimuth / horizontal angle .........................................................................................................24
A4. Inclination or tilt angle................................................................................................................24
A5. Shading .......................................................................................................................................24
A6. Ambient temperature.................................................................................................................25
Appendix B. Technical Specification: Elon 100 .....................................................................................26
Appendix C. IEC/SANS Test Certificate: Elon 100..................................................................................27
Appendix D. Warranty ..........................................................................................................................28
Appendix E. Terminology......................................................................................................................29
Notes.....................................................................................................................................................31