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Copyright 2017 SolarCity Corporation. All rights reserved.
Chapter 1 - Welcome
- PV1A, PV2A, and PV2B
- PV1A, PV1B, PV2A, and PV2B
5. Use a voltmeter or other testing device to ensure that all wires have been connected with
the correct polarity to the wiring box compartment connections DC wiring board
assembly:
5.7 - Battery Pack Connections
This section describes connecting the battery pack to the SolarCity H6 inverter, selecting the
correct fuse for service and maintenance, and how the battery pack firmware can be
upgraded via the inverter.
5.7.1 - Wiring
To connect the high-voltage battery pack wiring to the SolarCityH6 inverter:
1. Run and connect one 3/4” conduit to the SolarCity H6 inverter for the combined battery
pack voltage and communications wires using a watertight conduit fitting, as described in
“Conduit Plugs and Fittings” on page 61
.
2. Pull the positive wire, negative wire, ground wire, and communications wires from the
battery pack through the conduit to the inverter, leaving at least 6” (152mm) of exposed
wire to ensure adequate strain relief. The wiring must comply with the requirements listed
in
“Battery Pack” on page 38
.
3. Use the procedure described in
“Using the Spring Clamp Connectors” on page 62
to
spring connectors to connect the high-voltage battery pack wires to the BATT+ and BATT-
connectors in the SolarCity H6 inverter as described in
“Battery Pack Interface” on
page 31
and
“Battery Pack” on page 38
. When making the connections:
- Connect the positive wire to the correct positive connector next.
- Connect the negative wire to the correct negative connectors last.
Note: While you may use only one MPPT channel, SolarCity does not
recommend this because the inverter will only put out 70% of output
power on each MPPT channel (4.2kW).
Note: SolarCity does not recommend connecting more than two strings
on a single MPPT channel.