Duracell Power Center Core Manual

Power Center™ Core Hub
Installation Manual
For use with the Power Center™ Core LFP energy storage systems
Model: Duracell Power Center Core
Hub Cabinet Install and Startup Manual

Revision
Date
Status
Author
Comments
1.0
26.July.2022
Draft
RWM
Initial release
2.0
21.Oct.2022
Ver. 1
EJSIV
Rebrand, Install modication

IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions for the Power Center™ Core Hub as part of a complete home
energy storage system. The Power Center™ Core Hub is a peripheral of the Power Center™ Core energy
storage system.
CAUTION: Hazardous Voltages! This product contains hazardous voltage and energy that may be
lethal. It may only be installed by qualied personnel who have read this manual and are familiar
with its operation and hazards. The following safety procedures should be followed:
Only connect the Power Center™ Core Hub to a compatible electrical service as dened in the model
specications.
Ensure proper electrical grounding in accordance with code requirements.
Ensure proper airow path for active cooling.
Only qualied personnel should service this product.
Ensure cover is securely fastened after installation is complete.
Do not attempt to operate this product if there is any physical evidence of damage to the enclosure or
internal components.
WARNING! This product contains an AGM sealed lead acid battery. A battery can present a risk of
electrical shock, and a burn from high short-circuit current.
CAUTION! This product must be stored
indoors in an environmentally conditioned
location prior to installation, protected from
rain and exposure to any hazardous
chemicals. Inspect the battery case prior to
installation. Do not install and power the product if
there appears to be damage to the battery. Contact
your local product distributor if you suspect any
damage to the battery.
AGM sealed
rechargeable
12V/7 Ah
Quick disconnect tabs:
0.25” x 0.032” FAST-ON
IMPORTANT! When replacing the battery, use
the same type of battery. Use AGM sealed
lead acid battery with dimensions and ratings
as shown. Consult Duracell tech support for
approved replacements.
Proper disposal of batteries is required. Consult your
local codes for disposal requirement.
California Proposition 65
WARNING! This product can expose you to chemicals including Bis(2-ethylhexyl) phthalate, which is known
to the State of California to cause birth defects or other reproductive harm. For more information go to
https://www.p65warnings.ca.gov/.

……………………………………………………………………………………….…………………………….……………
………………………………………………………………….…………………………..………………………..
…………..…………………………………………………………………………………………………..
………………………………………………………………………………………..……………………
.……………………………………………………………………………………………………………………
………………………….………………………………………………………………………………….……….
……….……………………………………………………………….………….…
…………………………………………………………………………………………..………….
.………………………………………………………….……………………………………………………
.……………………………………………………………………………………………………….…………….
.……………………………………………………………………………………………………
……………………………………………………….……………………………………………………..
.…………………………………………..………….
…………………………………………………………………………………………………………………………
……………………………………………………………………………………………………………………
………..………………………………………………………………………………………………
……………………………………………………………………………………………….
…………………………………………………….….……………………………………………….
……..…….…………….
……………………………………………………….
…………………..……………………………..…..………..
………………………………………………………………………………….……………….
…………………………………………………………………………..………………
………………………………………..…………………………………………………………………………….………
…………………..………………………………………………………………………………………
…………………..…………………………………………………………………………………………………………
.………………………………………………………….…………………….
…………………………………………………………………………………………………….……………….
…………………….…………………………………………………………………………………………………..…
……………………………………………………………………………………………………………………..
……………………………………………………………………………………………………………….………………
………………………………….………………………………………………………………………….………………..
.………………………………………………………………………………………..……………………..
…………………………………………………………………………………………………………………..………………….
…………..……………………………………………………………………………………………………………..…………
……………………………………………………………….…………………………………………………………..
………………………………………………………………………………………………….…………………..…..
…………………………………………………………….……………………………………………….
…………………………………….………………………………………………………….………….…………
……………………………..…………………………………………………………………………………………….……………..
…………………………………….………………………………………………………….……..……………
..…………………..…………………………………………………………………………..……………………
……………..………………………………………………………………………………..……………….
………………………………………………………………………………………….………………………..
1 SAFETY
1.1 IN CASE OF EMERGENCY
1.2 BATTERY SAFETY PRECAUTIONS
1.3 GENERAL SAFETY PRECAUTIONS
1.4 DISPOSAL AND RECYCLING
2 INTRODUCTION
2.1 ABOUT THIS MANUAL - SUPPORTING DOCUMENTS
2.2 INITIAL INSPECTION OF MATERIAL LIST
2.3 SPECIAL TOOLS & HARDWARE
2.4 FUNCTIONAL OVERVIEW
2.4.1 Grid Connected Solar plus Storage
2.4.2 Backup Solar plus Storage
2.4.3 Backup Solar PV Curtailment Method: Frequency Shift Power Control
2.4.4 PV AC Input Limit
2.4.5 Oversized PV Systems
2.5 INTERNAL COMPONENT OVERVIEW
2.5.1 Energy Management Controller (EMC)
3 INSTALLATION PLANNING
3.1 INSTALLATION CLEARANCES BETWEEN THE POWER CENTER CORE HUB AND THE BATTERY SYSTEM
3.2 INSTALLATION CONDUIT PLAN - POWER AND COMMUNICATION CIRCUITS
3.3 SLD - AC COUPLED PV SYSTEM WITH BACK-UP POWER OPERATION
4 INSTALLATION INSTRUCTIONS
5 ELECTRICAL WIRING INSTRUCTIONS
5.1 EMC TO PCS CABLE
5.2 GRID & ATS MONITORING CABLES
5.3 AC POWER WIRING
5.3.1 Phase Orientation in Split Phase 120/240 Systems
5.3.2 Main Electrical Panel
5.3.3 PV AC into Hub
5.3.4 Load (Backup Panel)
5.3.5 Core LFP PCS
5.4 CT CONNECTIONS
5.4.1 Main Electrical Panel CTs
5.4.2 PV CTs
5.4.3 PCS CTs
5.5 12V BACKUP BATTERY
6 OPERATION
6.1 EMC SELECTOR SWITCH: EMC_B
6.2 PRE-STARTUP CHECKLIST
6.3 STARTUP
6.4 POST-STARTUP CHECKLIST
7 MAINTENANCE
8 TROUBLESHOOTING
9 TECHNICAL DATA
TABLE OF CONTENTS
1
1
1
1
2
3
3
3
4
4
4
4
5
5
5
6
6
7
7
8
9
10
10
10
11
11
11
12
13
13
13
13
13
13
13
13
14
14
14
14
14
15
15
16

Personal Protective Equipment (PPE) in compliance with local work place safety standards
must be worn when working inside the cabinet.
1 Safety
The components described by this manual are intended to be used as part of an energy storage system and
installed per all local building codes and regulations in addition to the National Electrical Code, ANSI/NFPA 70
(for US) and Canadian Electrical Code (for Canada).
Throughout this manual, the following symbols will be used to highlight important information and procedures:
Symbol
Denition
Symbol
Denition
WARNING! A dangerous voltage or
other condition exists. Use extreme
caution when performing these tasks.
Meter measurement required.
CAUTION! This information is critical to
the safe installation and or operation of
the inverter. Follow these instructions
closely.
Torque rating critical to operation.
NOTE: This statement is important.
Follow instructions closely.
Login to the remote monitoring system for
operating status
1.1 In Case of Emergency
In all cases:
•If safe to do so, switch othe AC breakers (external to the system).
•Contact the re department or other required emergency response team.
•Evacuate the area, and if applicable, follow your emergency evacuation plan if others are in proximity to
the installed location.
In case of re:
•When safe, use a re extinguisher suitable for use; including A, B, and C dry chemical re extinguishers
or carbon dioxide extinguishers.
In case of ooding:
•Stay out of water if any part of the system or wiring is submerged.
•Do not attempt to operate batteries that have been submerged in water even after they have been
dried.
In case of unusual noise, smell or smoke:
•If safe to do so, ventilate the area.
1.2 Battery Safety Precautions
This product is integrated with an AGM type 12V, 9 Ah battery. Refer to the product manual for complete safety
instructions regarding the battery supplied with this product.
1.3 General Safety Precautions
Important! Installation, service, and operating personnel must read this
document in its entirety, and observe all safety and installation procedures as
described in this manual. Never operate system in a manner not described by this
manual.
Only qualied personnel should service this product.
Ensure all covers are securely fastened after installation is complete.
1

Risks of Fire
Do not expose the system to temperatures exceeding 60 degrees Celsius.
Avoid installation in direct sunlight.
Do not store objects on top of the cabinet.
Do not obstruct the airow paths of the cabinet air intake.
Do not obstruct the exhaust of cabinet exhaust.
Do not store combustible objects and corrosive chemicals directly adjacent to the system.
Risks of Shock
WARNING! Hazardous Voltages. The Inverter contains hazardous voltage and energy that may be lethal.
It may only be installed by qualied personnel who have read this manual and are familiar with its
operation and hazards.
Only connect this product to a compatible electrical service as dened in the model specications. This
product must be connected to a dedicated branch circuit in the main electrical panel.
Ensure proper electrical grounding in accordance with code requirements.
Risks of Damage
Do not drop, tip, or puncture the cabinet during transport and installation. Visible damage to the cabinet
and/or internal components should be reported to the manufacturer immediately.
Do not store this system for periods longer than six months without a battery maintenance charge. This
may result in permanent damage to the battery.
1.4 Disposal and Recycling
Do not dispose of the system or any of the components within the cabinet. Batteries. electronics, cables,
and metal parts are recyclable. Consult your municipal waste management authority to determine
required methods of component recycling.
2

Throughout this manual, the following symbols will be used to highlight important information and procedures:
2 Introduction
Symbol
Denition
Symbol
Denition
WARNING! A dangerous voltage or other condition
exists. Use extreme caution when performing
these tasks.
Function performed by energy
management system /controller.
CAUTION! This information is critical to the safe
installation and or operation of the product.
Follow these instructions closely.
NOTE: This statement is important. Follow
instructions closely.
2.1 About this Manual – Supporting Documents
This manual is intended to be used by qualied service and installation personnel for the purposes of installation
and startup only. The energy management system & gateway within the Hub requires installer administration
and device commissioning prior to operation of the Power Center™ Core energy storage system. Refer to the
Fleet Installer Administration Guide and the Power Center™ Core Install and Commission Quick Guide for further
details.
This product is permanently wired to the home electrical service, and must be installed by a licensed electrician
only. This product is a power distribution peripheral intended to be operated with external batteries in the Power
Center™ energy storage system.
A complete list of Installer resources is available at www.duracellpowercenter.com under the Power Center™
product banner.
Term
Denition
Term
Denition
AC/ DC
Alternating Current / Direct Current
NC/NO
Normally Closed/ Normally Open
AHJ
Authority Having Jurisdiction
NEC/CEC
National (USA) Electric Code/ Canadian Electric Code
ARC
Auto Recovery Control
PCS
Power Control System (Inverter)
EMC
Energy Management Controller
PE (GND)
Protective Earth
EMS
Energy Management System
PV
Photo-Voltaic
ESS
Energy Storage System
RF
Radio Frequency
GND
Ground
SOC
State Of Charge (Battery)
LED
Light Emitting Diode
SOH
State of Health (Battery)
2.2 Initial Inspection of Material List
Item
Description
1
Power Center™ Core Hub
2
Current transformer – 200 Amp
3
Current transformer – 50 Amp
4
EMC to PCS RJ-45 cable
5
Grid monitor cable (6-wire)
6
ATS monitor cable (5-wire)
7
USB to Mini-USB service cable
7
3
4
6
5
1
(x2)
(x3)
2
Figure 1: Power Center™ Core Hub materials list.
The system components supplied with your Duracell Power Center™ Core Hub are shown below. Each component
should be inspected visually for any damage that may have been caused by shipment. If parts are missing or
damaged, please contact your local distributor.
3

2.3 Special Tools & Hardware
In addition to the standard tools required for enclosure mounting, the following tools should be readily available
to complete the installation.
•Drill and hole saw kit
•RJ-45 crimp tool and RJ-45 connectors
•Wall mounting hardware.
•#0 at screwdriver
2.4 Functional Overview
The Power Center™ Core Hub is equipped to support an AC coupled solar plus storage installation with backup
power to a dedicated backup electrical panel. The Hub is a power distribution center for the Power Center™
Core LFP (herein referred to as the ESS), routing all AC power between the main and backup electrical panels. In
the event of a grid outage, the Hub will be energized by the ESS, which will isolate electrically from the main
electrical panel. The PV inverter’s AC output is connected to the Hub to support solar charging of the battery
during a grid outage.
communication
power
CT (home run to Hub)
Main
Panel
100A
Oine during outage
Solar
Inverter
Solar panels
Power Center™
Core Hub
(Hub)
Power Center™
Core LFP
(ESS)
Home
Internet
Service
Backup
Panel
Figure 2: Power Center™ Core Hub and Power Center™ Core LFP storage plus solar.
2.4.1 Grid Connected Solar plus Storage
The Hub routes power from the main electrical panel to the backup panel via an internal transfer switch. The
EMC inside the Hub commands the battery system to charge or discharge the battery as demanded by the
energy management algorithm, using CT measurement of the loads and PV to calculate battery charge/
discharge values. In a self-consumption algorithm, for example, the EMC calculates the dierence in total load
vs. solar PV, and routes the balance of power to/from the battery as needed. When the battery is full, PV power
bypasses the battery to grid/loads. When the battery is at minimum reserve, all home loads are supplied
entirely by the grid.
Note: The Hub is equipped with an internal automatic bypass switch which provides uninterrupted service
to the backup electrical panel when the ESS is either not powered (installed but pending permission to
operate) or out of service.
2.4.2 Backup Solar plus Storage
During a grid outage, the Hub islands the battery system and backup electrical panel othe grid. In this mode,
the EMC is in a monitoring state, with most control handed over to the ESS. The ESS curtails PV when the battery
is either full or exceeds the charge limit of the battery. On low SOC, the battery system goes into a standby
state until either the solar resource or the grid returns.
IMPORTANT! Shutting othe ESS circuit breaker at the main electrical panel will place the ESS into
backup mode and continue to energize the backup panel.
4

2.4.3 Backup Solar PV curtailment method: Frequency Shift Power Control (FSPC)
During backup power operation of the ESS, PV curtailment is achieved by shifting the frequency up or down to
trip the PV inverter. This curtailment method, dened as frequency shift power control (FSPC), is required to
prevent solar from over-charging the battery. By default, the ESS will ramp up frequency to a PV trip range of
62.1 Hz, but this is adjustable depending on the regulatory frequency trip limits within the jurisdiction.
IMPORTANT! PV inverters connected to the backup panel must have frequency trip settings programmed within
the following ranges: PV low frequency trip range: 57.0 to 59.3 Hz, PV high frequency trip range: 60.5 to 62.0 Hz.
If the PV inverter cannot be adjusted within the range specied, the PV inverter must not be connected to the
backup panel.
Note: The Hub is not suitable for use in applications where the electric utility prohibits PV power export
to the grid. For non-export applications, consult your Duracell dealer for alternate Hub solutions.
2.4.4 PV AC input limit
The maximum AC nameplate rating of PV inverters connected to the Power Center™ Core Hub must not exceed
10 kW.
2.4.5 Over-sized PV systems
For installations with PV systems that are larger than the ESS can accommodate in backup mode, the PV
inverters must be split up such that the balance of PV is wired directly to the main electrical panel.
An additional CT must be added to the PV inverter that is connected to the main panel.
Main
Panel
100A
Oine during outage
Solar
Inverter
2
Solar panels
Solar
Inverter
Solar panels
Power Center™
Hub (Hub)
Power Center™
Core LFP
(ESS)
Home
Internet
Service
Backup
Panel
Figure 3: Installing over-sized PV systems.
5

2.5.1: Energy management controller (EMC)
IMPORTANT! The device unique identier (UID) & serial number (S/N) tag attached to the front of the EMC is
required to register the device to the cloud so that it may be monitored via the Fleet Installer monitoring system.
Record this information for online registration.
The EMC performs the following functions:
•Commands the battery system to charge and discharge as dened by the selected control algorithm.
•Monitors the home loads, solar PV, and battery power via on-board 8 channel power meter.
•Provides the Internet gateway to customer supplied internet router via wired Ethernet.
A 12V AGM UPS backup battery supplies uninterrupted power to the EMC.
Web cong tool
Service port
(mini-USB)
8 channel
power meter
12V AGM
Backup battery
Ethernet to
Internet router
CORE PCS
EMS IN
Figure 5: EMC feature overview.
2.5 Internal Component Overview
Energy
Management
Controller
(EMC)
12V AGM Battery
(EMC UPS)
AC eld wiring
circuits
EMC selector
EMC-B
Device unique
identier tag
Grid monitor
ATS monitor
The Power Center™ Core Hub is equipped the following components as identied in the diagram below:
Figure 4: Power Center™ Core Hub internal component overview.
6

3 Installation Planning
Before installing the Power Center™ Core Hub, read all instructions and warnings in this manual. The Power
Center™ Core Hub can be installed in an indoor and outdoor non-corrosive environment (not marine
environment). Wall mounting hardware is not included.
CAUTION! All electrical installation work should be performed in accordance with local building and
electrical codes.
WARNING! Isolate the Power Center™ Core Hub from all energy sources prior to electrical installation by
means of disconnects, breakers or connectors. Failure to properly isolate either AC or DC sources may
result in serious injury or death.
NOTE: Communication cables between the Hub and the battery system are limited in length. The Power
Center™ Core Hub should be installed within 2 ft of the battery system.
CAUTION! Do not install in direct sunlight.
3.1 Installation Clearances between the Power Center™ Core Hub and the Battery
System
The Hub includes communication cables that connect the Hub to the ESS, and are 15 feet in length. As a result,
the Hub should not be located more than two feet from the edge of the PCS to ensure the cables can be
terminated between devices.
Figure 6: Installation clearances between the Power Center™ Core Hub and the Power Center™ Core LFP
7

3.2 Installation Conduit Plan – Power and Communication Circuits
The following example outlines the conduit plan for power and communication circuits for a complete solar plus
storage system using the Power Center™ Core Hub and the ESS. (String PV inverter shown – replace with
equivalent AC combined micro-inverter output, where applicable).
Figure 7: Installation conduit plan for a solar plus storage installation.
Conduit Ref
Circuit Denition
Conductor (recommended)
Circuit Protection
P1
Hub grid power
4/3
100 Amp
P2
Solar PV power
-
50 Amp max
P3
Backup panel power
4/3
100 Amp
P4
Power Center™ Core LFP power
8/3
50 Amp
S1* (x2)
CT, 200 Amp 8ft pigtail
18/2, 300V
-
S2*
Grid monitor
22/6
-
S3*
ATS monitor
18/6
-
S4*
EMC communication
CAT-5
*Cables included. CT’s are equipped with 8 ft pigtail only. Extensions are customer supplied using 18/2 UTP
cable.
Conduit must comply with UL514B.
Disclaimer:
Manufacturer supplied components represented here are limited to the PCS/Battery, Power Center™ Core Hub, CTs and
communication/control cables. All other materials and components represented are customer supplied. CEC/NEC electrical
code compliance is the responsibility of the designer and/or electrical permit holder.
8
Core Hub
PV
Sub Panel
14kWh
Battery
14kWh
Battery
PCS B
PCS A
Sub
Panel

3.3 SLD - AC Coupled PV System with Back-up Power Operation
The single line diagram shown below is a representation of a typical installation congured for utility interactive
and back-up power operation, including AC coupled PV. This drawing is a guideline only and is not a substitute
for a code compliant installation. All components required for a code compliant installation are the
responsibility of the licensed installer, including any additional circuit protection requirements not shown here.
Figure 8: Sample single line diagram of an AC coupled solar plus storage installation.
NOTES
1 - The backup power bus must be electrically isolated from the main electrical bus. Do not tap the neutral wires of the main
and backup buses. Refer to the installation manual for wiring details. Load circuits are shown for demonstration. Maximum
number of circuits determined by sub-panel rating. Loads connected to circuits must not exceed nominal power ratings
(continuous/surge) of the inverter.
2 – The battery system must be earth bonded to the building ground to meet lightning protection requirements.
3 – Line side tapping of the electrical service required for 200 Amp service panels.
4 - CTs are equipped with 8 ft pigtails. Twisted pair extensions can be run up to 30 feet. Arrow on CT indicates direction.
5 – Ethernet is recommended. EMC can also communicate via Wi-.
6 - Cable referenced ‘E’ uses 5 conductors only.
7 – Total combined PV output must not exceed 10kW AC during backup operation. PV systems larger than 10kW AC must have a
self curtailment mechanism (software or hardware) to ensure limit is within the 10kW AC rating. If curtailment means are not
available, balance of PV (if applicable) must be routed directly to the main panel. The fused disconnect shown assumes
combined output rating. PV system design is the responsibility of the installer.
Disclaimer:
Manufacturer supplied components represented here are limited to the PCS/Battery, Power Center™ Core Hub, CTs and
communication/control cables. All other materials and components represented are customer supplied. CEC/NEC electrical
code compliance is the responsibility of the designer and/or electrical permit holder.
9

IMPORTANT! Wiring methods must be in accordance with local electrical codes. The installer is responsible
for ensuring that over-current protection is installed and sized appropriately for the AC circuits, in
accordance with the National Electrical Code, ANSI/NFPA 70, Canadian Electrical Code and local codes
The patch cables provided in section 4.1 and 4.2 below have pre-assembled connectors at both ends. It is
strongly recommended that these cables are pulled in conduit prior to the power cables.
CAUTION! Do not install cables if any wires appear damaged or are not terminated improperly. Contact
your Duracell distributor for support.
1. Terminate the EMC CAT 5 patch cable from the EMS IN
port of the PCS to ethernet port 3 of the EMC.
Note: If a longer extension is required, shielded CAT 5/6
cable must be used.
4 Installation Instructions
1. Mount the Power Center™ Core Hub on the
wall using the 4 mounting screw holes on the
top and bottom anges. (Mounting hardware
not included).
2. Using the conduit plan in section 2.2, drill the
knockout holes required for the conduit runs
on the bottom face of the enclosure.
Constrain the drill area as shown.
3. Route all conduit as cabling as required.
Conduit must comply with UL514B.
CAUTION! All knockout holes must be sealed
to maintain the Type 3R environmental rating
of the enclosure after the installation is
complete.
CAUTION! The restricted knockout area is near the Hub circuitry, so extra care must be taken to avoid
internal components when the knockout holes are being drilled.
CAUTION! Ensure that the enclosure door is properly seated such that the gasket becomes compressed
when the door is securely closed.
Knockout area:
6” W x 5” H
1.0”
1.0”
Restricted knockout area:
8” W x 5” H
1.0
1.0”
Figure 9: Recommended knock-out area.
5 Electrical Wiring Instructions
5.1 EMC to PCS Cable
Figure 10: EMC cable connection to RJ-45 port.
10

Figure 11: Grid and ATS monitoring cable
5.2 Grid & ATS Monitoring Cables
Sense | ATS coil
L1 N L2 L1 L2
ATS-Rel
CoNo
Status
OAIA
Harness
OHIH
5.3 AC Power Wiring
IMPORTANT! Do not terminate ne stranded cable in the connectors without the use of ferrules.
CAUTION! To reduce the risk of fire, connect only to a dedicated circuit provided with appropriate
branch circuit over-current protection in accordance with local electrical codes.
WARNING! Improper connection of the wiring panel may result in equipment damage and cause personal
injury. Disconnect all AC and DC Sources prior to installation.
CAUTION! The AC load feeds a dedicated backup sub-panel, the source of which is controlled internally
by an automatic bypass and transfer switch. Do not tap line or neutral wires directly from the main
electrical panel to the backup panel. The neutrals of both panels must be electrically isolated for safe
operation.
5.3.1 Phase Orientation in Split Phase 120/240 Systems
The EMC derives power measurement at the main service, the solar
PV inverter AC output, and the ESS. Consistent phase voltage
orientation through the entire installation is critical to proper
control of the system. The initial selection of the phase voltage
dened as L1 is established by the placement of the CT referenced as
CT1 on the main feeder to the panel. To ensure the phase wiring to
the Power Center™ Hub maintains consistent polarity, measure the
AC voltage between L1 of the main feeder and the Grid terminals of
the Power Center™ Hub. The pole that measures 0.0 VAC is dened
herein as L1 for the AC wiring instructions that follow.
L1
Figure 12: Dening L1 with CT1 in the main panel.
11

5.3.2 Main Electrical Panel
Route “AC Grid” L1, L2, Neutral, and Ground to a dedicated 2-
pole 100 back-feed rated disconnect that is line-tapped to the
main electrical panel.
L1
L2
N
GND
5.3.3
5.3.4
5.3.5
Refer to the above diagram for the wiring connections in the following sections. Neutral and ground
connections for the sections below are terminated at the common neutral and ground bus respectively.
L1 L2
Backup panel
|----N----|
PV
Load
PCS
PV inverter: string
or combined micro
LE
LE
NE
N
GND
L1 L2
L1 L2
GND
5
7
8
PE
N
L
Figure 14: Core Hub AC port connections.
Figure 13: Main panel connection.
12

Figure 15: Main panel CT connections: Channels 1 & 2.
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.
5.3.3 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
See Figure 14 – PV port.
See Figure 14 - PCS port.
5
7
8
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
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.
Figure 16: Connecting the AGM battery after
permission to operate.
13

6 Operation
The EMC inside the Hub is commissioned using a web browser.
Refer to the Fleet Installer Administration Guide and the Quick
Commissioning Guide for complete instructions on setup for
the Power Center™ Core battery system.
EMS
EMC-B
Figure 17: EMC selector switch in position EMC-B.
6.1 EMC Selector Switch: EMC_B
Ensure that the EMC selector switch is in position EMC_B.
6.2 Pre-Startup Checklist
The following is a recommended quality inspection checklist prior to
power up of the system.
Status
(√)
Inspection
Reference
EMC selector switch set to position B.
Figure 17
Ground continuity test – inspect and test ground continuity between the
Power Center™ Core Hub and Power Center™ Core LFP.
6.3 Startup
IMPORTANT! The Power Center™ Core Hub must be commissioned as part of the Power Center™ Core LFP. The
startup procedure provided below presumes that the PCS contained within the Power Center™ Core LFP is
powered from the battery (DC source), and that the PCS is currently displaying a valid SOC range and is
operating in sleep/standby mode. Refer to the startup sequence of the Power Center™ Core LFP
Installation and Startup Guide to power up the ESS. If an AC disconnect has been installed between the
Hub port and the battery system, leave it in the OFF position until the power up of the Hub has been completed.
1. Turn ON the Power Center™ Core Hub AC source circuit.
Powering up the Hub will supply power to the on-board EMC. The red and green lights on the bottom of the EMC
will ash for approximately 30 seconds, indicating it’s initialization sequence. Following initialization, the lights
will remain solid.
CAUTION! Following initial power up of the Power Center™ Core LFP, shutting OFF the Hub breaker at the
main electrical panel will automatically engage the ESS backup power source.
The Hub will remain energized at the PCS, Load, and PV ports while the ESS is in backup mode.
6.4 Post-Startup Checklist
The following is a recommended quality inspection checklist following power up of the system.
Statu
s (√)
Inspection
Reference
EMC power up status: Green/Red LEDs ashing up to 30 seconds, then solid Green
and Red.
Figure 16
Measure AC voltage at the AC_Grid port (ATS Input terminals. (L1-N, L2-N)
Figure 13
Measure AC voltage at the load (backup panel connection) port. (L1-N, L2-N)
Figure 14
14

7 Maintenance
The Power Center™ Core Hub is a maintenance free product. Annual inspection is recommended to ensure the
enclosure maintains mechanical integrity (mounting and environmental protection) and the ventilators are free
from obstruction. For heavy soiling use a soft, dry brush to clean. Do not use any solvents, scouring, or corrosive
materials to clean the unit. Never remove or unplug connections or plugs during cleaning.
8 Troubleshooting
The following is a troubleshooting guide for the Power Center™ Core Hub. Refer to the Power Center™ Core LFP
Installation and Startup manual for troubleshooting the battery system.
Mode
Condition
Check
Grid connected
No power to Power
Center™ Core Hub and
backup panel.
Check Power Center™ Core Hub breaker circuit at the main panel.
Grid connected
No PV power output
Check PV breaker in the backup panel.
Commissioning/ Grid
connected
Battery does not charge
when PV is operating
1. Check CT conguration. PV measurement is negative when
operating.
2. Check battery SOC (battery does not charge when full).
3. EMS operating in solar self-consumption mode, and home loads
are greater than PV.
Grid connected &
Backup
Monitoring system not
displaying information
in web portal.
Check internet connection. Check power (Green LED) on the EMC
panel.
Backup (grid outage)
No power to backup
loads
Check status of the Power Center™ Core LFP on the front of the PCS
panel. Refer to the Power Center™ Core LFP Installation & Startup
Guide for more details.
15

AC ratings – Power distrubution circuits
Nominal Grid voltage
240V/120V split phase
Nominal Grid frequency
60 Hz
Maximum AC fault current and duration (short circuit)
14.0 Apk, 2.5 Arms (duration 63.5 ms)
AC voltage operating range
Max: 100 to 264 Vac. Note: UL 1741SA compliant operating limits are
determined by the Power Center™ Core LFP conguration settings
AC frequency operating range
Max: 47 to 63 Hz. Note: UL1741SA compliant operating limits are
determined by the Core LFP conguration settings
AC connections, number - type
4 – Grid, Load, PCS, PV
Grid Port (ATS Input) and Load Port: Maximum
continuous operating current (or Rated current)
100.0 Amps
Maximum continuous operating power (or Rated
power), VA
9600 VA
PCS Port and PV Port: Maximum continuous operating
current (or Rated current)
50.0 Amps
Protective Class (I, II, or III)
Class I
Over-Voltage Category (OVC I, II, III, or IV)
OVC III
Pollution Degree
3
Lightning protection
IEEE 62.41.2, location category B, low exposure
Short circuit current rating
22 kA
General data
Width x height x depth
19.5” x 17.5” x 9” (495 x 445 x 229 mm)
Weight
35 lbs (15.9 kg)
Protection type
Type 3R
Ambient temperature, relative humidity, altitude
-20 °C to +50 °C, 95%, 2000 m
Installation type
Wall-mount (upright)
Enclosure material
Halogen free, self extinguishing berglass reinforced polyester
For use only with the Duracell Power Center™ Core LFP energy storage system.
9 Technical Data
9.1 Electrical specications
Note: About these ratings - The Power Center™ Core Hub is a peripheral component of the Power Center™ Core. It is
a power distribution center with an on-board energy management system. As such, this product is dened under the
category of Interconnection System Equipment (ISE) for use in utility interactive and/or stand-alone power systems
under the scope of the UL1741 Standard, and is intended to be operated in parallel with an electric power system (EPS)
to supply power to common loads. The Power Center™ Core Hub as a standalone device does not provide grid-interactive
functionality. Where necessary, the ratings included below are listed both as a standalone product, as well as in conjunction
with the Standard for Interconnecting Distributed Resources With Electric Power Systems, IEEE 1547, and the Standard for
Conformance Test Procedures for Equipment Interconnecting Distributed Resources with Electric Power Systems, IEEE 1547.1.
Use copper only, 90 °C or higher rating (do not use ne strand)
PCS (AC)
# conductors
AWG (min to max)
Torque
AC grid (ATS input)
3 conductor + PE
4 AWG to 2/0 AWG
45 in-lbs (4 AWG)
50 in-lbs (2 AWG to 2/0 AWG)
AC load, PV, PCS
3 conductor + PE
8 AWG to 2 AWG
25 in-lbs (8 AWG)
35 in-lbs (6 to 3 AWG)
40 in-lbs (2 AWG)
Ground Lug
1 conductor
8 AWG to 6 AWG
25 in-lbs (8 AWG)
35 in-lbs (6 AWG)
16