SimpliPhi Sol-Ark AccESS User manual

Power.On YourTerms.
SimpliPhi Sol-Ark AccESS
INSTALLATION MANUAL
Optimized Energy Storage & Management for Residential & Commercial Applications Utilizing
Efficient, Safe, Non-Toxic, Energy Dense Lithium Ferrous Phosphate (LFP) Chemistry
© SIMPLIPHI POWER, INC. REV111819
INSTALLATION MANUAL

SimpliPhi Power, Inc. | 3100 Camino Del Sol | Oxnard, CA 9303, USA | [phone] | [e-mail] | SimpliPhiPower.com
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SimpliPhi’s battery technology utilizes the industry’s most
environmentally benign chemistry combined with proprietary
architecture and power electronics (BMS) that eliminate the
need for cooling or ventilation to create products that provide
energy security and resiliency –all with a 98% efficiency rate.
SimpliPhi Your
Energy Security and
Independence
and gain control of your own power.
SimpliPhi Power helps you manage your power as a personal
resource. Anytime. Anywhere. SimpliPhi energy storage
optimizes integration of any power generation source –solar,
wind, generator –on or off grid and protects your home and
mission-critical business functions from power outages and
intermittency. SimpliPhi storage technology eliminates operating
temperature constraints, toxic coolants and the risk of thermal
runaway. Safe lithium ferrous phosphate. No cobalt. No hazards.
SimpliPhi Power offers proprietary, commercially availableenergy storage
and management systems that are safe, non-toxic, reliable, durable,
efficient, highly scalable, and economical over the lifetime of the AccESS.

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Table of Contents
1.0 –Important Safety Information .......................................................................................... 4
1.1 –Safety Instructions......................................................................................................... 4
1.2 –Safety & Protective Features ......................................................................................... 5
1.3 –Limitations of Use.......................................................................................................... 7
1.4 –Explosive Gas Precautions............................................................................................ 7
1.5 –Regulatory Specifications .............................................................................................. 7
2.0 –Product Description........................................................................................................... 8
2.1 –Overview ....................................................................................................................... 8
2.2 –Specifications ................................................................................................................ 8
2.3 –Inside the AccESS NEMA-3R Rated Cabinet................................................................10
3.0 –Pre-Installation.................................................................................................................12
3.1 –PHI 3.8 Battery Performance Parameters and..............................................................12
Sizing Calculations................................................................................................................12
3.2 –System Sizing for Your Installation ...............................................................................12
3.3 –Installation Tools and Materials.....................................................................................13
3.4 –Installation Site Location...............................................................................................13
3.5 –Clearance Requirements..............................................................................................14
3.6 –Knock Out Locations.....................................................................................................15
3.7 –Pad Mounting ...............................................................................................................15
3.8 –Wire Run Lengths.........................................................................................................17
3.9 –Sub-panel or Transfer Switch Kit Installation & Wiring..................................................17
4.0 –Installation & Wiring .........................................................................................................18
4.1 –Basic System Configuration Concepts..........................................................................18
4.2 –PHI 3.8 Battery Installation within the AccESS..............................................................18
4.4 –Communications and Network Preparation...................................................................21
4.5 –Wiring the AccESS .......................................................................................................22
5.0 –Programming ...................................................................................................................35
5.1 –Depth of Discharge.......................................................................................................35
5.2 –Operating Parameters Per Warranty.............................................................................35
5.3 –Configuring the Sol-Ark to a Specific Application ..........................................................39
6.0 –SimpliPhi Technical Support.............................................................................................44

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1.0 –Important Safety Information
THE ACCESS UNIT AND PHI BATTERIES CONTAINED WITHIN THE UNIT MUST BE INSTALLED
ACCORDING TO THE PROCEDURES OUTLINED IN THIS INSTALLATION MANUAL AND THE PHI
BATTERY INSTALLATION MANUAL. ALL ACCESS UNIT OPERATION MUST BE IN ACCORDANCE
WITH THE SETTINGS AND CONFIGURATION OUTLINED IN THIS MANUAL. FAILURE TO ADHERE
TO EITHER THE ACCESS INSTALLATION MANUAL OR THE PHI BATTERY INSTALLATION
MANUAL WILL VOID YOUR WARRANTY.
1.1 –Safety Instructions
1. Before using the unit, read all instructions and cautionary markings on the unit, the PHI
batteries, and all appropriate sections of this manual.
2. PHI batteries must be fully charged before commissioning the AccESS unit (i.e. before
turning on connected loads). Failure to do so will void the Warranty.
3. Use of accessories not recommended or sold by the manufacturer may result in a risk of fire,
electric shock, or injury to persons and will void the Warranty.
4. Verify system settings are in compliance with the Battery Warranty and Battery Installation
Manual (which take precedence). Violating Warranty conditions specified in these
documents will void the Warranty on the PHI batteries.
5. Consult the Integration Guide for Sol-Ark equipment settings as well as relevant warnings
and notices. All Integration Guides are posted on SimpliPhi’s Product Documentation web
page (https://simpliphipower.com/product-documentation/). Violating Warranty conditions
specified in the Sol-Ark Integration Guide will void the Warranty on the entire AccESS unit,
not just the Sol-Ark equipment.
6. Each AccESS unit contains four or six PHI 3.8 batteries. Although each PHI 3.8 battery
contains both a circuit breaker and an internal BMS with circuitry that protects the PHI 3.8
battery cells from overcharge, over-discharge and excessive load amperage, the PHI
batteries must always be installed with appropriate Balance of System equipment settings
and power electronics to protect the PHI 3.8 from open solar PV voltage and other high
voltage charging sources. Do not attempt to replace existing power electronics without
SimpliPhi’s written approval. Failure to adhere to installation protocol will void the Warranty.
7. Verify polarity at all connections with a standard volt meter before 1) energizing the system
and 2) turning the PHI 3.8 circuit breaker’s “ON/OFF” switch to the “ON” position. Reverse
polarity at the PHI 3.8 battery terminals will void the Warranty and destroy the PHI batteries.
8. PHI batteries pose some risk of shock or sparking during the installation and initial wiring
and connection process. This is consistent with all other battery-based storage formats. Be
sure to turn the built-in circuit breaker to the “OFF” position to minimize the risk of shock or
sparks during the installation and commissioning of the system.
9. To avoid a risk of fire and electric shock, make sure that existing wiring is in good condition
and that wire is not undersized. Do not operate the AccESS unit with damaged or
substandard wiring. This will void the Warranty.
10. Do not operate the AccESS unit if it has been damaged in any way during shipping or
otherwise.
11. Only use a SimpliPhi approved LFP battery charger if ancillary charging is required before
installation, testing or troubleshooting. Failure to use a SimpliPhi approved LFP battery
charger will damage the PHI 3.8 battery and void the Warranty. Refer to the PHI 3.8 Manual
for details regarding SimpliPhi-approved ancillary charging equipment.
12. To reduce the chance of short-circuits, always use insulated tools when installing or working
with this equipment.
13. Remove personal metal items such as rings, bracelets, necklaces, and watches when
working with electrical equipment.

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14. The AccESS unit does not have any user-serviceable parts. Do not disassemble the inverter
except where noted for connecting wiring and cabling. See your Warranty for instructions on
obtaining service. Attempting to service the components inside the AccESS unit yourself
may result in a risk of electrical shock or fire and void the Warranty. Internal capacitors
remain charged after all power is disconnected –wait 10 minutes before servicing.
15. To reduce the risk of electrical shock, disconnect both AC and DC power from the AccESS
unit before attempting any maintenance or cleaning or working on any components
connected to the inverter.
1.2 –Safety & Protective Features
1.2.1 –80A Breaker
All PHI 3.8 batteries within the AccESS unit are outfitted with an 80A hydraulic/magnetic circuit breaker
which will show a white base when tripped. This breaker increases safety during shipping and
installations and allows the PHI 3.8 battery to effectively be turned “OFF” or “ON.” The breaker works in
conjunction with the built-in battery management system (BMS) and creates additional safety, efficiency
and functionality to the overall power storage system.
Figure 1.0 - PHI 3.8 kWh 51.2Vnom 80A Circuit Breaker
CAUTION: Circuit Breakers, Disconnects and Fuses should be employed throughout several points of a
power storage and generation installation to effectively isolate and protect all components of the system
to safeguard against faults, short circuits, polarity reversals or a failure of any component in the overall
system. Fuses, breakers, wiring ratings and values should be determined by established standards and
evaluated by certified electricians, licensed installers, and regional code authorities. Although each PHI
3.8 battery contains both an 80 Amp circuit breaker and an internal BMS with circuitry that protects the
Lithium Ferrous Phosphate cells from overcharge, over-discharge and excessive load amperage, the PHI
batteries must always be installed with a charge controller and the appropriate settings to protect the PHI
3.8 battery from open PV voltage and other high voltage charging sources. The PHI 3.8 Battery
Management System (BMS) and built-in circuit breaker alone will not protect the PHI batteries
from extreme electrical conditions. Failure to adhere to installation protocol will void the Warranty.
CAUTION: Verify polarity at all connections with a standard volt meter before 1) energizing the system
and 2) turning the PHI 3.8 circuit breaker’s “ON/OFF” switch to the “ON” position. Reverse polarity at the
battery terminals will void the Warranty and destroy the PHI batteries.

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PHI batteries pose some risk of shock or sparking during the installation and initial wiring and connection
process. This is consistent with all other battery-based storage formats. Be sure to turn the built-in circuit
breaker to the “OFF” position to minimize the risk of shock or sparks during the installation and
commissioning of the system. Use of insulated gloves, clothing and footwear is always recommended
when working in close proximity to electrical devices. Cover, restrain or remove jewelry or conductive
objects (metal bracelets, rings, belt buckles, metal snaps, zippers, etc.) when working with any electrical
or mechanical device. Cover or restrain long hair and loose clothing when working with any electrical or
mechanical device.
PHI batteries do not vent any harmful gasses, and do not require special ventilation or cooling.
PHI batteries are not capable of thermal runaway. As with any battery, if the cells are severely damaged
due to physical abuse incurred outside of warranted specifications, it can cause electrolyte leakage and
other failures. The electrolyte can be ignited by an open flame. However, unlike other lithium ion batteries
(e.g. LCO, NCM, and NCA), the PHI batteries’electrolyte and other material components generate a
limited amount of heat.
1.2.2 –Charging at Temperatures Below Freezing
It is important to take necessary steps to determine the temperature of the PHI 3.8 battery prior to
charging the battery, as the battery may otherwise be adversely impacted.
CAUTION: Do not attempt to charge the PHI 3.8 battery below 32°F (0°C). Although cold temperatures
do not harm PHI batteries, attempts to charge at subfreezing temperatures can adversely affect SOH and
cycle life, and will void the Warranty. If the PHI 3.8 battery must be charged below 32° F (0° C), the rate
of charge must be at no more than 5% of the PHI 3.8 battery’s rated capacity (C/20).
CAUTION: Only use a SimpliPhi approved LFP charger if ancillary charging is required before installation,
testing or troubleshooting. Failure to use a SimpliPhi approved LFP charger will damage the PHI 3.8 battery
and void the Warranty. Refer to the PHI 3.8 Manual for details regarding SimpliPhi-approved ancillary
charging equipment.
1.2.3 –Battery Management System (BMS)
The PHI 3.8 batteries within the AccESS unit are manufactured utilizing Lithium Ferrous Phosphate (LFP)
cells, which are produced under exclusive patented licensed technologies, as well as proprietary
materials, architecture, manufacturing processes and battery management system (BMS). This assures
the highest grade and quality, longest cycle-life, greatest efficiency and freedom from material impurities,
toxicity and hazardous risk.
Each PHI 3.8 battery within the AccESS unit contains circuitry that protects the Lithium Ferrous
Phosphate cells from overcharge, over-discharge and excessive load amperage. If the values specified
are exceeded, the protective circuitry will shut down the flow of electricity to/from the PHI batteries. In
some cases, this will result in the need to manually turn the batteries and inverter back on. Often, inverter
system settings will be saved within the inverter memory storage and will not need to be reset. This is not
an absolute standard but is common amongst most inverter/chargers and should be anticipated if the PHI
batteries go into a state of self-protection and shut down the flow of electricity.
CAUTION: While the BMS and internal circuit breaker protect the PHI battery from extreme electrical
scenarios, neither will prevent the PHI battery from operating outside the recommended operating
parameters. Rely on Balance of System equipment programming to operate the battery according to
recommended parameters, as outlined in the Sol-Ark Integration Guide.

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1.2.4 –PHI 3.8 Battery Connection Terminals
The PHI 3.8 batteries are equipped with two 3/8’’ threaded studs with a lock washer and nut. The red
colored high temperature molded insert connection is for the positive lead. The black colored high
temperature insert connection is for the negative lead.
CAUTION: Do not attempt to loosen the large brass nut at the base of the terminals. This will void the Warranty.
CAUTION: Do not reverse polarity. It will void the Warranty. Use a volt meter to check polarity before
connecting terminals.
Water Resistant Cable Boots are also included and will be in place when your units arrive. The boots are
to be placed over the cable terminations and will stretch to form a water-resistant seal around the base of
the molded inserts and terminal connections.
1.3 –Limitations of Use
The Sol-Ark equipment built into the SimpliPhi Power AccESS is not intended for use in connection with
life support systems or other medical equipment or devices.
1.4 –Explosive Gas Precautions
This equipment is not ignition protected. To prevent fire or explosion, do not install this product in
locations that require ignition-protected equipment. This includes any confined space containing vented
batteries, or flammable chemicals such as, natural gas (NG), liquid petroleum gas (LPG) or gasoline
(Benzine/Petrol).
Do not install in a confined space with machinery powered by flammable chemicals, or storage tanks,
fittings, or other connections between components of fuel or flammable chemical systems.
1.5 –Regulatory Specifications
Sol-Ark equipment has been tested and found to comply with the following:
•Electronics certified safety by SGS labs to NEC and UL specifications: NEC 690.4B & NEC
705.4/6.
•Grid interactivity requirements UL1741-2010/2018, IEEE1547a-2003/2014, FCC 15 class B,
UL1741SA, CA Rule 21 and HECO Rule 14H.
These standards provide regulation for acceptable output voltage ranges, acceptable output frequency
and anti-islanding performance.

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2.0 –Product Description
2.1 –Overview
The SimpliPhi AccESS offers industry leading renewable energy storage technology to provides energy
security and power resiliency into a pre-assembled, pre-programmed system that is suitable for
installation inside and outside. The AccESS serves all of the common residential scale renewable energy
applications: Off-Grid, Grid-Tied with Battery Back Up, Self Consumption –with Zero Export and Time Of
Use (TOU) arbitrage for utility charge reduction.
2.2 –Specifications
Please review Table 1.0 below for AccESS unit specifications, including physical dimensions, warranty
period, and technical data.
Table 1.0 –Sol-Ark AccESS Specifications
SPECIFICATIONS
AccESS Sol-Ark-8K-15.2 kWh
AccESS Sol-Ark-12K-22.8 kWh
General
Dimensions
29.5” W x 76”H (w/feet) x 20” D /
75 cm W x 193 cm H x 51 cm D
Weight
600 lbs. (270 kg.) w/o batteries
Enclosure Rating
NEMA 3R Outdoor Rated
Operating Temperature
-4°F to 122°F (-20°C to 50°C)
Mounting
Free-standing or Pad-mounted
Enclosure Warranty Period
2 years
Certifications
UL1741SA Rule 21, HECO Rule 14H, PREPA approved and Rapid Shutdown compliant
Included batteries ETL certified and certified to UL 1973
Inverter
Sol-Ark
Sol-Ark-8K
Sol-Ark-12K
Application
On or Off-Grid
On or Off-Grid
AC Connections
1 Bi-Directional Grid Port (50A double-pole), 1 UPS Load Output (50A double-pole)
1 Bi-Directional Generator Port (40A double-pole); can be used for Smart Loads output
Output Frequency (selectable)
60 Hz or 50 Hz
Output Voltage
L-N: 120VAC; L-L: 240VAC │ L-L: 208VAC (2/3 phases) │ 230VAC
Off-Grid Output Power System
8 kW Continuous
12 kW Continuous
Solar PV Continuous Power
9.5 kW
12 kW
Inverter AC Continuous Power
8 kW
9.6 kW
Inverter Battery Continuous Power
8 kW
8 kW
Max Output Charging Current
185 ADC
185 ADC
CEC Weighted Efficiency
96.5%
96%
Warranty Period
5 yr standard / 10 yr optional extended
10 yr standard
Parallel Stacking
No
Yes* (needed for true 3 phase power)
*While Sol-Ark permits the stacking of their Sol-Ark-12K, the Sol-Ark AccESS unit is not
designed for stacking and doing so voids the AccESS Warranty.
Other Features
EMP hardened upon request (against Nuclear EMP and Solar Flare),
Smart Load capabilities (2 x CTs included)

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SPECIFICATIONS
AccESS Sol-Ark-8K-15.2 kWh
AccESS Sol-Ark-12K-22.8 kWh
Solar PV
DC Coupled
Sol-Ark Dual MPPT
1 - 4 PV String Inputs (2 max per MPPT)
1 - 4 PV String Inputs (2 max per MPPT)
Max Connected PV Power
11 kW (6 kW max per MPPT)
16.5 kW (8 kW max per MPPT)
12 kW max simultaneous utilization
Min PV Array Starting Voltage
175 VDC
Max Open Circuit PV Array Voltage
500 Voc per PV String
MPPT Voltage Range
150 –425 VDC
Max Array Short Circuit Current
20A per MPPT
33A per MPPT
Max Array Operating Current
18A per MPPT
20A per MPPT
AC Coupled
Max AC Coupled Input
7 kW (string or micro-inverters)
7.6 kW (string or micro-inverters)
DC & AC Coupled
Max Combined Solar Input
(DC + AC)
13 kW
16.5 kW (15 kW preferred)
Best Combined Input Combination
3 kW AC + 10 kW DC
3 kW AC + 12 kW DC
Good Combined Input Combination
4 kW AC + 9 kW DC
4 kW AC + 11 kW DC
OK Combined Input Combination
5 - 7 kW AC + 8 - 6 kW DC
2 kW AC + 11 kW DC
5 - 7.6 kW AC + 9 - 7 kW DC
1 kW AC + 15 kW DC
Other Features
Internet Connected
(Computer or Phone App)
SmartESS Monitor
PowerView ES Monitor and
Programming
Automatic Generator Start
Two-wire automatic generator start
Batteries
SimpliPhi Power
(x4) PHI 3.8 kWh-51.2Vnom
(x6) PHI 3.8 kWh-51.2Vnom
Rated kWh Capacity
15.2 kWh
22.8 kWh
Usable kWh Capacity @ 80% DoD
12.16 kWh
18.24 kWh
Max Combined Output Power
7.6 kW DC
11.4 kW DC
Max Combined Charge Current
150 ADC
225 ADC (limited by the Sol-Ark to 185A)
Charging Temperature
32°F to 120°F (0°C to 49°C)
Depth of Discharge
Up to 100% DoD
Round Trip Efficiency
98%
Cycle Life
10,000+ cycles (@ 80% DoD)
Warranty Period
10 years
DC Connections
5-point terminal busbars, 3/8” lugs, 650 ADC
Note: The AccESS does not need to be de-rated unless running continuously at more than 90% capacity, at
temperatures below 0 degrees Celsius, or above 50 degrees Celsius.

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2.3 –Inside the AccESS NEMA-3R Rated Cabinet
The AccESS system is enclosed within a NEMA-3R rated cabinet. Within, the internal layout provides
easy access to clearly labeled wiring points and includes the necessary overcurrent devices, breakers
and disconnects. See Figures 2.0 & 3.0 below for detail.
Figure 2.0 –AccESS Unit Components
The heart of the AccESS are the SimpliPhi Power PHI 3.8 kWh 51.2Vnom energy storage modules. The
energy storage is modular and expandable. The AccESS Sol-Ark-8K-15.2 kWh includes four PHI 3.8 kWh
modules combined in parallel for a total energy storage capacity of 15.2 kWh (12.16 usable kWh at 80%
DOD). The AccESS Sol-Ark-12K-22.8 kWh includes six PHI 3.8 kWh modules in parallel for a total energy
storage capacity of 22.8 kWh (18.24 usable kWh at 80% DOD).
Either of the AccESS units’ energy storage capacity can be expanded upon. Additional storage capacity
can be achieved by adding another AccESS Energy Storage Cabinet in parallel, side by side, with up to
12 of the PHI 3.8 kWh 51.2Vnom batteries.
The Sol-Ark’s built-in dual MPPT charge controllers allow for a DC coupled PV system rated at up to 11
kW (in the case of the Sol-Ark-8K-15.2 kWh unit) or up to 16.5 kW (in the case of the Sol-Ark-12K-22.8
kWh unit). Additional Sol-Ark equipment features also include automatic generator start, remote system
Rain hood(s) optional

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monitoring (in the case of both AccESS Sol-Ark models) and remote system programming (in the case of
the Sol-Ark-12K-22.8 kWh unit).
2.3.1 –AccESS Core Components
The core components within the AccESS unit include the below listed products. See Figures 2.0 & 3.0 for
detail.
•Sol-Ark-8K (manual linked here) or Sol-Ark-12K (manual linked here), includes:
oSolar Panel MC4 Connector Tool
oWiFi Plug
o2 Limiter Sensors (10’ long wires included; extendable up to 50’ upon direct request to
Sol-Ark: 972-575-8875, [e-mail])
•(4) or (6) PHI 3.8 kWh Batteries (15.2 kWh or 22.8 kWh), manual linked here

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3.0 –Pre-Installation
The information within this section covers pre-installation procedures & considerations, namely, PHI 3.8
battery performance parameters to be aware of during the design process, guidance on system sizing, as
well as installation site requirements and pad mounting.
3.1 –PHI 3.8 Battery Performance Parameters and
Sizing Calculations
The PHI 3.8 batteries within the Sol-Ark AccESS are designed to operate at a continuous discharge rate
of 7.6 kWDC (AccESS Sol-Ark-8K-15.2 kWh model) or 11.4 kWDC (AccESS Sol-Ark-12K-22.8 kWh model)
across a large operating temperature range, as seen in Table 1.0 above. Neither SimpliPhi AccESS
model requires an increase in sizing nor any special compensations when determining the size of the
energy storage and management system under the circumstances and conditions seen in Table 1.0
above. Each AccESS unit comes pre-programmed to maximize the performance of the PHI 3.8 battery
bank.
PHI 3.8 batteries within the AccESS unit do not need to be de-rated unless running continuously at more
than 90% capacity, at temperatures below 0° C, or above 49°C. To achieve higher, warrantied cycles of
10,000, the PHI 3.8 batteries are operated at 80% maximum Depth of Discharge (DOD). The AccESS
comes pre-programmed for 80% DOD. Please contact SimpliPhi Power Technical Support if alternative
settings are desired. Please also refer to operating temperatures and inverter settings in this Manual’s
Programming section.
3.1.1 –Design Parameters: Maximum Sizing Guidelines
Below are the maximum sizing guidelines for installations of the AccESS:
•Maximum AC Grid input / output OCPD = 50 A double-pole
•Maximum DC coupled PV array =
◦11 kWDC (AccESS Sol-Ark-8K-15.2 kWh model)
◦16.5 kWDC (AccESS Sol-Ark-12K-22.8 kWh model)
•Maximum AC coupled PV array =
◦7 kWAC (AccESS Sol-Ark-8K-15.2 kWh model)
◦7.6 kWAC (AccESS Sol-Ark-12K-22.8 kWh model)
•Maximum AccESS units combined in parallel: None. The AccESS unit is designed as a single
stand-alone unit. Stacking multiple AccESS Sol-Ark units will void the AccESS
Warranty.
3.2 –System Sizing for Your Installation
The number of PHI 3.8 batteries within the AccESS unit should be specified in terms of total storage
capacity and instantaneous power rating before the initial installation based on the goals and objectives of
the project. All PHI 3.8 batteries are balanced during final production and testing stages. Following proper
wiring guidelines ensures that a system will not require any manual balancing processes.
CAUTION: Do not combine PHI 3.8 batteries with other brands or chemistries.
CAUTION: Do not mix PHI 3.8 batteries from different installations, clients or job sites.

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3.3 –Installation Tools and Materials
•Digital Multi Meter
•AC/DC Clamp-On Current Meter
•Wire Stripper
•Impact Driver
•Masonry Bolts
3.4 –Installation Site Location
The AccESS may be installed indoors, such as a garage, or outdoors mounted onto a concrete pad. The
cabinet is rated for NEMA-3R use. Please see Figure 3.0 below for physical AccESS dimensions, as this
may impact the site location.
Figure 3.0 –AccESS Unit Dimensions
Rain hood(s)
optional

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3.5 –Clearance Requirements
The AccESS should be installed with 3 inch (7.62 cm) clearance to the sides and 3 feet (0.91 m)
clearance to the front to allow for the cabinet door to be opened during installation. Please see Figure 4.0
for details. All installations should comply with local code requirements and/or the local AHJ, which may
exceed the requirements shown.
Figure 4.0 –AccESS Unit Clearances

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3.6 –Knock Out Locations
Three 1.375-inch OD knockouts and one 2-inch OD knockout are located on both sides of the AccESS
cabinet. They can be used for AC or DC inputs. Not all knockouts must be used.
Figure 5.0 –AccESS Cabinet Knock-Outs (sides)
3.7 –Pad Mounting
3.7.1 –Pad Requirements
The AccESS must be installed and secured on level concrete. For a pre-cast concrete pad, a 4” minimum
thickness is required. The pad should be 3” wider than the AccESS on all sides (34” x 22” x 4”).
The AccESS is not suited for wall mounting. Any attempt to wall mount the AccESS unit will void the
Warranty.
3.7.2 –Pad Mounting the SimpliPhi AccESS
Six 1-inch knockouts are located in the base of the AccESS for tool accessibility when mounting the
AccESS to the concrete pad. Cover knockout holes with sealing tape after pad mount installation, and
prior to installing the PHI 3.8 Batteries into the base of the cabinet. Not all knockouts have to be used,
depending on the different assets built into the AccESS system to meet the customer’s needs. Any
attempt to wall mount the AccESS unit will void the Warranty.
Secure the AccESS to the concrete with concrete anchors, such as threaded rods, masonry bolts, or
carriage bolts, minimum ½” diameter. Eisting concrete floors in the garage or other areas are adequate
“mounting pads” if the thickness meets the 4” minimum thickness. See Figure 5.0 below for details.

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Figure 6.0 –AccESS Unit Knockouts (Bottom)

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3.8 –Wire Run Lengths
Two limiter sensors are included with the AccESS Sol-Ark. The limiter sensor wires are 10 feet long, and
are extendable up to 50 feet using equipment from Sol-Ark (contact Sol-Ark directly at 972-575-8875;
[email protected]om). Consider this distance when deciding the Sol-Ark AccESS unit’s location relative to
the home’s main breaker panel.
3.9 –Sub-panel or Transfer Switch Kit Installation & Wiring
All AccESS Sol-Ark systems must incorporate either an Essential Loads sub-panel or the 10-circuit
transfer switch kit available directly from Sol-Ark (see Figure 7.0). In the case of off-grid systems, all the
home’s loads are on the Essential Loads panel, thereby making the Essential Loads panel the main
house breaker panel. Any distance is permissible between the AccESS Sol-Ark and the Essential Loads
panel or Sol-Ark transfer switch kit, provided wire sizing and voltage drop is in accordance with local
codes.
Figure 7.0 –Transfer Switch Kit
Prior to the AccESS Sol-Ark’s installation, determine which of the home’s circuits will be located either on
the Essential Loads panel or the Sol-Ark transfer switch kit. Consider the following:
•The Sol-Ark’s Load Output is protected by a 50 Amp double-pole breaker.
oWhen grid-connected, the maximum continuous power the Sol-Ark can deliver to the Essential
Loads panel is 40 Amps at 240VAC (9.6 kWAC).
oWhen off-grid, the maximum power the Sol-Ark can delier to the Essential Loads panel (also
considered the main house breaker panel in an off-grid application) is 33 Amps continuous at
240VAC (7.92 kWAC) and 83 Amps peak at 240VAC (19.92 kWAC) for 5 seconds.
•The Sol-Ark transfer switch kit (if used instead of an Essential Loads panel) can house a maximum
of 10 circuits, all of which must use non-GFI breakers. Contact Sol-Ark (972-575-8875, sales@sol-

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ark.com) for transfer switch kit purchase and installation instructions; It is not included in the
AccESS Sol-Ark.
4.0 –Installation & Wiring
This section covers how to install the PHI 3.8 batteries within the AccESS unit, torque values,
communications and network preparation and how to wire the AccESS unit. It also provides guidance on
how to install optional AccESS unit components/accessories.
4.1 –Basic System Configuration Concepts
Safe and reliable installation requires trained and certified technicians. The following discussion is a basic
primer. Due to the variety of systems and components in the field, all possible scenarios are not covered.
This is not the purpose of this section of the manual. Refer to professional installers regarding your system
and its components and specifications. We encourage you or your installer to contact us with any specific
questions for technical support. We are committed to working with you and your installation team to achieve
a safe, reliable storage system that will provide years of maintenance free service.
4.2 –PHI 3.8 Battery Installation within the AccESS
AccESS Sol-Ark-8K-15.2 kWh model:
1. Mount the AccESS unit on level concrete.
2. Make sure all PHI battery module circuit breakers are in the OFF position. Prepare the
battery modules for installation by removing all plastic terminal covers, 11/16” stainless steel hex
nuts and 3/8” lock washers from the batteries’ terminals and set aside.
CAUTION: Do not attempt to loosen the large brass nuts at the base of the battery terminals.
3. Place four PHI 3.8 batteries in the bottom of the cabinet. Orient the four batteries two wide, two
deep, as illustrated below:
Figure 8.0 –4 Battery Orientation in the AccESS Sol-Ark-8K-15.2 kWh
4. Attach interconnecting busbars onto the batteries’ terminals. Each positive busbar parallels one
set of two batteries (positive to positive), and each negative busbar parallels one set of two
batteries (negative to negative).

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Figure 9.0 –Interconnecting Busbars Parallel the Batteries in Sets of Two
5. Secure the busbars to the batteries’ terminals using a 11/16” wrench socket to tighten the 3/8”
lock washers and 11/16” stainless steel hex nuts (originally included on the batteries). Tighten the
nuts to 160 in-lbs.
Figure 10.0 –Interconnecting Busbars Secure to the Batteries’ Terminals
6. Connect the cables that are pre-wired into the Sol-Ark to the interconnecting busbars secured to
the batteries. All connections are in parallel: each positive cable connects to each positive
busbar, and each negative cable connects to each negative busbar (refer to Figure 8.0 above).
7. Leave the PHI 3.8 batteries’ built-in breakers in the “OFF” position until the basic functional test.
CAUTION: Adhere to all battery installation instructions as outlined in the PHI Battery Installation
Manual; this manual does not substitute the PHI Battery Installation Manual.
CAUTION: PHI 3.8 Batteries must be fully charged before commissioning the AccESS unit. Failure to do
so will void the Warranty.

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AccESS Sol-Ark-12K-22.8 kWh model:
1. Mount the AccESS unit on level concrete.
2. Make sure all PHI battery module circuit breakers are in the OFF position. Prepare the
battery modules for installation by removing all plastic terminal covers, 11/16” stainless steel hex
nuts and 3/8” lock washers from the batteries’ terminals and set aside.
CAUTION: Do not attempt to loosen the large brass nuts at the base of the battery terminals.
3. Place three PHI 3.8 batteries in the bottom of the cabinet and arrange three PHI 3.8 batteries on
the AccESS’s internal shelf. Orient the modules so that the battery terminals point toward the
AccESS door, with the negative posts nearest the bottom of the AccESS enclosure. Refer to
Figure 11.0 below:
Figure 11.0 –Six-PHI Battery Orientation within the Sol-Ark-12K-22.8 kWh
4. Attach interconnecting busbars onto the batteries’ terminals. Each positive busbar parallels one
set of three batteries (positive to positive to positive), and each negative busbar parallels one set
of three batteries (negative to negative to negative).
5. Secure the busbars to the batteries’ terminals using a 11/16” wrench socket to tighten the 3/8”
lock washers and 11/16” stainless steel hex nuts (originally included on the batteries). Tighten the
nuts to 160 in-lbs.