APS YC500A-MIW Installation/User Manual
7
Installation Procedures
APS Microinverters are designed to only operate when they can sense
power coming from the grid. Even if they are plugged into the PV array,
they will not turn themselves on until they can read power from the grid.
WARNING:
Do NOT connect APS Microinverters to the utility grid or
energize the AC circuit until you have completed all of the installation
procedures as described in the following sections.
Step 1 - Installing the AC Branch Circuit Junction Box
A.
Install an appropriate junction box at a suitable location on the
PV racking system (typically at the end of a branch of modules).
B.
Connect the open wire end of the AC branch end splice cable
into the junction box using an appropriate gland or strain relief
fitting.
C.
Wire the conductors: L1- RED; L2 - BLACK; N -WHITE.
D.
Connect the AC branch circuit junction box to the point of utility
interconnection.
NOTE:
Be sure to size the AC wire to account for voltage drop
between the AC branch circuit junction box and the point of utility
interconnection. (See wire size diagram on following page.)
YC500A
Installation
To junction box
Figure 3