APsystems ECU-3 V4 Installation/User Manual
6
Hardware Instrallation
Attach the ECU to the mounting rail with machine screws.
Figure 6
2) Using Wall Mount
When mounting the ECU to a wall, make sure to select a
cool, dry, indoor location.
Depending on the wall surface you are mounting the
ECU to, use either two (2) #8 drywall screws or wall
anchors, installed 130 mm apart. The drywall screws
and wall anchors are NOT included in the ECU kit.
Align and slide the ECU onto the mounting screws.
Figure 7
Best Practice: Install and connect the ECU to the Internet
(see below instructions) while the rest of the array is being
installed. Doing so allows the ECU to automatically update
its internal software while the rest of the physical installation
is underway. The ECU will then communicate with the inverters
when the installation is complete and the array is energized.
80mm
138mm
130mm