AC Battery Installation
© 2016 Enphase Energy Inc.
141-00036 Rev 01
10
Installing the AC Battery
Steps one through four describe installation of the wall-mount bracket
and junction box wiring, while steps five and six describe mounting the
battery and energizing the system.
1. Choose a Location for the AC Battery
The AC Battery housing is a NEMA type 2 metallic enclosure. The
terminal blocks on the wall-mount bracket accept a maximum
conductor size of 12 AWG (4 mm
2
).
a.
Following local standards
, choose a wall in a readily
accessible, well-ventilated, indoor location (like a garage),
which is out of direct sunlight and where the ambient
temperature and humidity are within -4° F (-20° C) and 113° F
(45° C) and 5% to 95% RH, non-condensing.
NOTE
: If the AC Battery registers a high temperature
event, it responds by reducing operation to correct
internal temperature.
b.
Ensure that the mounting location can sustain the weight of
the AC Battery and wall-mount bracket (60 lbs. or 28 kg per
battery).
c.
Plan the mounting location to be at least one foot (300 mm)
off the ground and one foot (300 mm) from the ceiling. Keep
the battery(ies) away from falling or moving objects, including
motor vehicles.
d.
Ensure that there are no pipes or electrical wires where you
plan to drill.
e.
Plan to maintain at least one foot (300 mm) of clearance in front of each battery.
f.
Consider the dimensions of the AC Battery, easy access, height, and length of cable when selecting
the location.
g.
Do not block the vents or allow liquids to contact the AC Battery. The AC Battery is not waterproof.
h.
Select a location where you can interconnect to the site’s load center using an appropriate branch
circuit.
i.
Following local standards
, decide whether to connect using external conduit or by wiring inside the
walls. This determines which knockouts to use in the junction box. Check if an AC disconnect is
needed. Plan the location for the AC disconnect switch, if needed.
j.
If you are installing more than one AC Battery, continue to maintain minimum required clearances as
shown in Step 2.
Choose a location for the
AC Battery
Install the wall-mount
bracket
Install the AC disconnect
(if required)
Wire the junction box
Mount the AC Battery on
the wall
Energize the system
