Instruction Manual

PowerOptimal Elon® 100 Installation Manual
Version date: 2022/05/23
Page 12 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.
9B ELEMENT ADAPTER INSTRUCTIONS (follow these if you have the element adapter as per Figure
4.2)
d. Plug the thermostat into the element adapter as per Figure 4.7, ensuring a snug fit. Check
that spade terminals enter female terminals correctly.
e. Plug the thermostat + element adapter into the element as per Figure 4.8, ensuring a snug
fit.
f. Wire the thermostat screw terminals directly to the connectors marked “Thermostat” on
the Elon.
g. Wire the element adapter directly to the connectors marked “Element” on the Elon.
h. Continue with instructions from STEP 10.
10. Set the thermostat to the desired temperature (60 °C maximum). Note that vertically installed
geysers have higher temperatures at the top than the bottom (this is called thermal
stratification). The temperature difference is about 3 °C per meter. Reduce the setpoint
temperature in vertically installed geysers to about 5 °C lower than for a horizontally installed
geyser.
11. Attach labels included with the Elon 100 (see Figure 4.9 on next page):
a. Attach "Dual Supply" labels to the AC isolator and the DC circuit breaker (or isolator).
b. Attach "Warning – Photovoltaic Power Source" label to the DC wiring conduit in a clearly
visible position.
c. Attach "Installation Diagram" label close by the geyser in a clearly visible position – for
example on a rafter. (Do not attach it directly to the geyser, as it will disappear if the geyser
is replaced.)
12. Once installation is complete, do the following:
a. Turn the control dial to "SOLAR ONLY".
b. Switch on the AC & DC circuit breakers or isolators.
c. Remove the covering from the solar modules.
d. Switch on the geyser circuit breaker at the main DB.
13. Check that the Elon® 100 unit is operational (refer to LED lights on controller – see next page).
Figure 4.7 Thermostat plugged into
element adapter
Figure 4.8 Thermostat & element
adapter plugged into element