Install the AC isolator, if required
Following all local codes and standards:
A ) Choose an AC Isolator that can break the maximum rated current of
the branch circuit under load (20 A maximum).
B ) Connect one side of the isolator to the switchboard (load centre).
C ) Verify that AC voltage at the site is within range: single-phase L1 to N
measures 200-270 VAC.
*
WARNING!
Risk of equipment failure. Size the AC conductor
gauge to account for voltage rise for both the branch circuit and all
upstream conductors leading back to the point of connection. Refer
to the technical brief on voltage rise at
enphase.com/support
.
3
Install the wall-mount bracket
A ) Make sure that the wall-mount bracket matches the wall stud spacing
and that the lowest wall-mount bracket position meets clearance
requirements as shown.
(Dimensions shown are for the 450 mm wall-mount bracket. See the
image below for the 600 mm bracket.)
*
WARNING!
Risk of injury and equipment damage. Protect the AC
Battery from impact damage and improper use.
B ) Remove the appropriate knockout(s) for the planned entry into the
wall-mount bracket junction box:
•
If wiring inside the walls, use the knockout(s) in the back of each
junction box. If using conduit, use the knockouts at the bottom of
the junction box.
•
If installing only one battery, use only one knockout.
•
Loosen the screw securing the junction box cover and remove the
cover. Keep the cover handy as you will need it later.
C ) Starting at battery position closest to the power source, mark a level
line on the wall as a guide.
*
WARNING!
Multiple risks. Make sure not to drill or attach into
electric wiring or pipes that are in the wall!
2
D ) Place the wall-mount bracket on the wall so that the mark on the
bracket aligns with the centre of the stud. Use a level to keep the
top of the wall-mount bracket flat, and attach each corner of the
wall-mount bracket using one screw and washer for each slot.
E ) Verify that the wall-mount bracket is solidly attached to the wall.
*
WARNING!
Risk of injury and equipment damage. Do not mount
an AC Battery on a bracket that is not properly mounted.
F ) If installing additional batteries, install the adjacent wall-mount brack-
ets in an interleaved fashion, as needed. Be sure to align the mark on
the adjacent wall-mount bracket to the centre of the wall stud. A small
gap in between the adjacent wall-mount brackets is normal. You may
install another row of wall-mount brackets above the one already
installed. Maintain at least 300 mm (one foot) clearance between
rows.
Dimension for the 600 mm wall-mount bracket:
Wire the junction box
A ) Size the conductors (Line, Neutral and Earth) depending on the up-
stream breaker or fuse. Use 2.5 mm
2
- 4 mm
2
wire with maximum
20A branch circuit protection.
+
DANGER!
Risk of electric shock. Check that the dedicated
circuit breaker protecting the branch where the AC Battery will be
connected is turned off before wiring.
*
WARNING!
Risk of equipment damage. Never connect an
Enphase AC Battery junction box to two active conductors. Always
connect to one Line (active) and one Neutral.
B ) Using the conductors and suitable conduits, connect the AC
isolator (if used) and the first adjacent AC Battery junction box. Use
the openings provided by the knockouts to connect the conduits
and pass the wires through them.
NOTE:
Do not modify or rewire the pre-installed wiring or bonding
connections in the junction box.
C ) Connect each wire in the junction box to its corresponding conduc-
tor (Line, Neutral and Earth). Each push terminal accepts two 2.5
mm
2
- 4 mm
2
conductors (11 mm strip length). Use a screw driver
to depress the terminal.
D ) After all wires in the junction box are connected and secured, check
that there are no exposed conductors.
E ) If connecting additional AC Batteries, be sure to use another
conduit and another set of wires to connect between junction
boxes.
F ) Gently arrange all the wires and connectors inside the junction
box and replace the cover. Tighten the cover screw using a Phillips
screw driver.
+
DANGER!
Risk of electric shock. The system is not ready to
be energised! Do not close the circuit breaker yet.
4
Mounting
slots
Junction box
Junction box
cover screw
300 mm
(minimum)
spacing
Wall-mount brackets
shown interleaved
Mounting
slots
300 mm minimum
height from ground
300 mm minimum
from ceiling
Earth from this
junction box, from
chassis screw
Terminal block
Earth from AC
isolator or previous
junction box
Line from AC isolator
or previous junction
box
Neutral
Line from this
junction box, from
connector
Neutral
Junction box detail
Neutral to next
junction box, if
needed
Line to next junction
box, if needed
Earth to next
junction box, if
needed
Junction box
AC connector
Energise the system
*
WARNING
: Before energizing, make sure that ALL batteries
in the system are properly installed and conductors terminated.
A ) Check that the AC Battery bottom access is plate is closed and
secured.
B ) Turn on the circuit feeding the AC Battery(ies).
C ) The AC Battery LED should now be solid red for the duration of
the startup process. If the LED is not solid red, see the following
section on Troubleshooting.
6
Use the Enphase Installer Toolkit to commission the AC Battery(ies).
You can access help topics once you connect Installer Toolkit to the
Envoy.
After the Envoy-S has detected the AC Battery(ies), the AC Battery
LEDs operate as described in the following section.
CONFIGURE and ACTIVATE
OPERATION
a
LED overview
The LED lights red while the AC Battery boots up. If the LED remains
red for more than two minutes, the battery is in trickle charge mode
and will remain so until it reaches a minimum state of charge (up to
30 minutes). After the AC Battery is booted up, the LED becomes blue
or green (depending on the charge level). If the LED remains red after
one hour or changes to a flashing red state, contact Enphase Custom-
er Support at
enphase.com/global/support/contact
.
State
Description
Solid red
Starting up
Red flashes in sequences of 2 Error. See “Troubleshooting”.
Solid amber
Not operating due to high temperature. See
“Troubleshooting”.
Solid blue or green
Idle - color transitions from blue to green as
state of charge increases. You can check
Enlighten for charge status.
Slowly flashing blue
Discharging
Slowly flashing green
Charging
Green one second flashing
Looking for noncommissioned unit
Off
Not operating. See “Troubleshooting”.
b
Troubleshooting
If the AC Battery is not operating correctly, perform the following
steps. If the issue persists, contact Enphase Customer Support at
enphase.com/global/support/contact
.
A ) If the AC Battery does not operate, check the temperature in the
room and increase cooling and/or ventilation as required. Check
that the front, top, and sides of the AC Battery array have at least
300 mm of unobstructed clearance.
B ) If the AC Battery LED is off, turn off the breaker for the branch
circuit, wait for at least one minute, and turn it back on.
NOTE
: During a brownout or blackout, the AC Battery powers
down automatically. This is normal. When power is restored, it
automatically starts up again.
C ) If you do not see AC Battery information in Enlighten, check that
the Envoy-S and the Internet connection are working.
D ) Refer to the
AC Battery Installation and Operation Manual
at
enphase.com/support
to read more about troubleshooting AC
Battery operation.
Mount the AC Battery on the wall
*
WARNING!
Risk of injury and equipment damage. Avoid drop-
ping the AC Battery. Doing so may create a hazard, cause serious
injury, and/or damage the equipment.
*
WARNING:
Before mounting the Enphase AC Battery, ensure
that the junction box cover is secured!
*
WARNING
: Take care when lifting the AC Battery. The AC
Battery is heavy and may require two persons to lift.
A ) Using both hands, take the AC Battery from the packaging and place
it right side up on a flat surface. Be sure that the AC connector is not
pinched underneath.
5
B ) Begin by installing the AC Battery located closest to the main supply.
Using the two grip insets on the side of the AC Battery, lift and carry
the AC Battery to the installed wall-mount bracket.
C ) While setting the AC Battery onto the wall-mount bracket, ensure
that the four tabs on the AC Battery are inserted into their corre-
sponding openings in the wall-mount bracket. After the tabs are
inserted, begin lowering the AC Battery slowly to ensure that the
tabs have latched onto the wall-mount bracket.
*
WARNING!
Risk of injury and equipment damage. Do not
release the AC Battery until you ensure that all four tabs have safely
latched onto the wall-mount bracket.
*
WARNING!
Risk of equipment damage. When placing the AC
Battery on the wall-mount bracket, ensure that the junction box does
not pinch the DC connector, the AC connector, or its cable.
D ) Use a Phillips #2 screwdriver to secure the two bond screws into the
wall-mount bracket. The bond screws are accessible through the
bottom access compartment. The bond screws provide an earthing
bond between the AC Battery and the wall-mount bracket.
*
WARNING!
Always secure the bond screws to ensure earthing
bond and firm mechanical attachment of AC Battery to wall-mount
bracket.
E ) Plug the DC connector into the DC socket. Listen for a clicking
sound as the connectors engage.
NOTE
: This action connects the internal battery to the internal elec-
tronics; you
must
disconnect it if you move the AC Battery.
NOTE
: Check that the wall-mount bracket junction box is fully inside
the access compartment of the AC Battery. The AC Battery
must
not
rest on the junction box or rely on it for support.
F ) Connect the battery AC connector into the AC connector on the
junction box. Listen for a clicking sound as the connectors engage.
G ) Attach the bottom access plate and secure the two compression
half-turn latches using a 4 mm Allen key.
DC socket
DC connector
AC connector
Bond screw
Bond screw
450 mm
487 mm
23 mm
(typical)
311 mm
xx mm
600 mm
647 mm
14 mm
(typical)
227 mm
(typical)
311 mm
