APsystems ECU-3 V4 Installation/User Manual
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
electrically as close 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).
A pre-programmed ECU.
Selecting an Installation Location for the ECU
A location that is electrically as close to the array as
is possible-preferably a dedicated outlet installed
directly to the solar system sub-panel.
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.
1) Using Electrical Mounting Din Rail
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.
Figure 5
113mm
M3 Screw
Holder
42mm
182mm
