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5.3.3 Main Electrical Panel
Terminate L1, L2, Neutral, and Ground at the Hub's load port from the AC output of the PV inverter (either string
or combined micro inverter output).
5.3.4 Load (Backup Panel)
Terminate L1, L2, Neutral, and Ground at the Hub's load port from the 100 Amp backup panel.
5.3.5 Core LFP PCS
Terminate L1, L2, Neutral, and Ground at the Hub's PCS port from the Power Center™ Core LFP PCS grid/
extension ports.
5.4 CT Connections
IMPORTANT! The energy management system
relies on the correct CT orientation for each of
the measured loads, PV, and ESS. Follow these
instructions with care.
Note: the positive signal wire is white and
the negative signal wire is black for all CT
models.
5.4.1 Main Electrical Panel CTs
CT direction faces into the home loads (away
from the utility meter). Current measurement is
positive when load exceeds generation.
1.
CT1 - line side of the L1 feeder tap in the
main electrical panel.
2.
CT2 - line side of the L2 feeder tap in the
main electrical panel.
5.4.2 PV CTs
CT direction faces into the solar PV inverter.
Current measurement is negative when PV is generating.
1.
CT5 - L1 input of the solar circuit within the Hub.
5.4.3 PCS CTs
CT direction faces into the Power Center™ Core LFP
Current measurement is positive when battery is charging and negative when discharging.
1.
CT7 – L1 input of the PCS port within the Hub.
2.
CT8 – L2 input of the PCS port within the Hub.
5.5 12V Backup Battery
IMPORTANT! Do not complete this connection until
the customer receives permission to operate the
system, and the main panel Power Center™ Hub
breaker is ON. The EMC will be powered when the 12V
battery is connected. Failure to comply with this instruction
may cause irreversible damage to the battery due to battery
drainage without a charge source.
1.
Terminate the positive wire on the AGM battery.
See Figure 14 - PCS port.
8
7
See Figure 14 – PV port.
5
Figure 15: Main panel CT connections: Channels 1 & 2.
Figure 16: Connecting the AGM battery after
permission to operate.
13
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