APsytems ECU-3 V8.0 Installation/User Manual 5 5
HARDWARE INSTALLATION
PREPARATION
Make sure you have the following things taken care of before attempting
to install the ECU:
• A dedicated standard AC electrical outlet (located as close
electrically to the array as is possible).
• A broadband Internet connection is available for your use.
• A broadband router with either a CAT5 Ethernet, or wireless
router is available for your use.
• A laptop with a web browser (to view the APsystems EMA online
monitoring application).
• An ECU.
SELECTING AN INSTALLATION LOCATION FOR THE ECU
• A location that is as close electrically to the array as is possible –
preferably a dedicated outlet installed directly to the solar system
sub-panel or combiner box.
• The ECU is NOT rated for outdoor use, so if installing outdoors
near a junction box or breaker panel, making sure that you enclose
it in an appropriate weather proof NEMA electrical box.
Using Electrical Mounting Din Rail
1. Loosen the two (2) M3 mounting screws on the back of the ECU
and rotate the two (2) rail holders so that the holders are above the
ECU.
2. Attach the ECU to the mounting rail with machine screws.
Figure 3
Figure 4
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