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PowerOptimal Elon® 100 Installation Manual
Version date: 2022/05/23
Page 9 of 37
Version number: 2.20
© PowerOptimal (Pty) Ltd 2022. The content of this document is confidential and all rights to the intellectual
property and/or information contained herein remain vested in PowerOptimal, except if otherwise agreed in
writing.
7. Install the wiring from the solar PV array to the Elon® 100 unit in the ceiling space. Ensure
circuit breakers / isolators are in the “Open” position. Installation of a Surge Protective Device
(SPD) between the solar PV array and the Elon® 100 is required in high lightning strike areas,
such as parts of Gauteng and Mpumalanga. See Appendix F for more information.
8. Last step is to connect the array to the rest of the wiring, making sure that both the positive
and negative wires are fully isolated from ground and keeping circuit breakers / isolators in
the “Open” position.
Some “DO’s & DON’T’s” when installing solar PV arrays:
Your solar PV installer should not make any of these basic mistakes, but they are listed here just in
case.
1. DO earth the PV array structure.
2. DO isolate the wires from the PV array structure.
3.
DON’T use different sizes, types or specifications of modules together in the same string or
array.
4.
DON’T install solar arrays where they will be partially shaded during any season of the year if
it can be avoided at all.
5. DO install the arrays so that there is space for inspection or maintenance when needed.
6. DO use cabling of the correct size for your solar array.
7.
DON’T install the solar array flush with your rooftop. Use struts / brackets that ensure an
unrestricted air gap of at least 40 mm between the roof and the modules.
8. DON’T walk on the modules.
9. DO ensure that connectors are kept clean and away from water.
10. DON’T leave exposed modules in short circuit.
11. DO ensure that all connectors are securely fastened.
12. DON’T exceed the voltage ratings of any components.
13. DO properly route and secure all cables.
14. DON’T coil cables.