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/.

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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