Briggs & Stratton SIMPLIPHI User manual

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Installation Manual
SimpliPHI 6kW™ Hybrid Inverter
6
kW

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SimpliPHI Your Energy
Security and Independence
and gain control of your own power.
SimpliPHI helps you manage your power as a personal resource. Anytime.
Anywhere. SimpliPHI Energy Storage Systems (ESS) optimize the integration of
any power generation source – solar, wind or generator – on or off grid and
protects your home and critical business functions from power outages and rising
utility costs with best-in-class batteries and inverters.
The SimpliPHI 6kW Hybrid Inverter is IP 65 indoor/outdoor rated with integrated
MPPT that easily pairs with SimpliPHI battery storage solutions. Leverage savings
with utility programs such as Net Metering, Demand Response and Time-of-Use
configurations all while adding security to protect from planned and unplanned
outages.

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Table of Contents
Specifications............................................................................................................................................................4
Safety Information...................................................................................................................................................6
Important Safety Instructions............................................................................................................................................. 6
Warranty Statement............................................................................................................................................................... 8
1.0 – Introduction.................................................................................................................................................................... 9
1.1 – Online Resources ..................................................................................................................................................................................9
1.2 – Technical Support .................................................................................................................................................................................9
1.3 – Product Overview.................................................................................................................................................................................9
2.0 –Safety.................................................................................................................................................................................. 9
2.1 – General Safety Instructions.............................................................................................................................................................9
3.0 – Unpacking & Overview.............................................................................................................................................10
3.1 – What Comes in the Box ................................................................................................................................................................. 10
4.0 – Installation.....................................................................................................................................................................11
4.1 – Precautions........................................................................................................................................................................................... 11
4.2 – Installation Tools & Materials..................................................................................................................................................... 11
4.3 – Selecting a Mounting Location................................................................................................................................................... 11
4.4 – Mounting Hardware........................................................................................................................................................................ 11
4.4 – Sub-panel Installation & Wiring................................................................................................................................................. 12
4.5 – Conduit Installation ......................................................................................................................................................................... 13
5.0 – Grid (Utility) Connection.........................................................................................................................................14
5.1 – Preparation........................................................................................................................................................................................... 14
5.2 – Connecting to the AC Utility....................................................................................................................................................... 14
6.0 – Load (AC Output) Connection...............................................................................................................................15
6.1 – Preparation........................................................................................................................................................................................... 15
6.2 – Connecting the Load Output Connection ........................................................................................................................... 16
7.0 – Battery Connection ...................................................................................................................................................16
8.0 – PV Module (DC) Connection .................................................................................................................................18
SimpliPHI System Solar PV Array Sizing ........................................................................................................................................... 18
PV Connections.............................................................................................................................................................................................. 20
9.0 – Generator Connection .............................................................................................................................................21
9.1 – Preparation........................................................................................................................................................................................... 22
9.2 – Connecting to the Generator Input ........................................................................................................................................ 23
9.3 – Dry Contact Signal............................................................................................................................................................................ 23
10.0 – Communication ........................................................................................................................................................25
10.1 – EnergyTrak Site Network and Internet Requirements ............................................................................................. 25
10.2 – Gateway Installation..................................................................................................................................................................... 26
10.3 – Pin Assignments.............................................................................................................................................................................. 26
11.0 -Commissioning ...........................................................................................................................................................26
12.0 -Programming and Operation ................................................................................................................................27
12.1 – Operation Modes........................................................................................................................................................................... 27
12.2 – Selecting Grid Profile ................................................................................................................................................................... 28
12.3 – AC Battery Charging Profiles.................................................................................................................................................. 28
12.4 – Grid-Tie with Backup Setting Choices................................................................................................................................ 29
12.5 – Grid-Tie ............................................................................................................................................................................................... 33
12.6 – Off-Grid............................................................................................................................................................................................... 33

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12.7– Interface............................................................................................................................................................................................... 35
12.9– Touchable Function Keys ........................................................................................................................................................... 37
12.10– LCD Settings................................................................................................................................................................................... 38
Specifications
Model Designation SPHI-IN-6
Environmental Protection IP65
Battery Input
Nominal Battery Voltage (V) 40~62
Maximum Charging Voltage (V)
62 (Configurable)
Maximum Charging Current (A) 100
Maximum Discharging Current (A) 120
Charging Curve 3 Stages/Float
Charging Strategy for Li-Ion Battery Self-adaption to BMS
Number of DC Connections 1
PV String Input
Max. DC Input Power (W) 7,500
Max. DC Input Voltage (V) 600
MPPT Range (V) 120 ~ 550Vdc
Start-up Voltage (V) 160
Max. Input Current per MPPT (A) 15A x2
15/15
No. of MPP Trackers
2
AC Output
Nominal Apparent Power Output to Utility Grid (VA) 6,000
Maximum Supported Load- Continuous (W) 6,000
Nominal Output Voltage (V) 220/240V L1-L2, 110/120V L-N
Maximum Output Current (A) 40
Nominal Output Frequency (Hz)
50/60
O/P DC component (mA) <100
Output Power Factor 0.9 leading to 0.9 lagging
Output THDi (@Nominal Output) <3%
Switch Over Time (grid Down) <8ms
AC Output (Back-up)
Max. Output Apparent Power (VA) 6,000
Instantaneous Power-100ms (VA) 12,000
Surge Power-5 sec (VA) 9,000
Max. Output Active Power (W) 6,000
Nominal Output Voltage (V)
240VAC L1-L2
120VAC L-N
230VAC (50Hz)
Nominal Output Frequency (Hz)- Field Selectable 50/60 (±0.1Hz)
Maximum Input Current (A) 40
Output THDv (@Linear Load) <3%
Output THDv (@PF 0.8 Non-linear Load)
<5%
Parallel function Yes
Parallel units 9
AC Input

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Grid Input Current Maximum (A) 40
Generator Input Current Maximum (A) 40
Efficiency
Max. Solar to Utility Efficiency 96.5%
Max. Battery to Load Efficiency 91.0%
Protection
Anti-islanding Protection Integrated
PV String Input Reverse Polarity Protection Integrated
AFCI (Arc-Fault) Integrated
Ground Fault Monitoring Integrated
Insulation Resistor Detection Integrated
Residual Current Monitoring Unit Integrated
Output Over Current Protection Integrated
Output Short Protection Integrated
Output Over Voltage Protection
Integrated
General Data
Operating Temperature Range: °F (°C) -13 – 140 (-25~60)
Transformerless Yes
Consumption Modes UPS, Self-Consumption, TOU, Off-Grid Backup,
Battery-less Operation (GT Only)
Relative Humidity 0~100%
Operating Altitude: feet (m) <13,123’ (<4,000m)
Cooling External Force Convection
Noise (dB)
<50
User Interface- EnergyTrak LCD / Phone Application (iOS & Android)
Communication with BMS CANBUS
Communications between Inverters CANBUS
Communication with Cloud- API with Grid Services Wi-Fi (per Gateway)
Automated Generator Start Included
Dimensions Inches: Height x Width x Depth (mm)
27.55” (700) x 20.28” (515) x 8.5” (216)
Weight 86 lbs. (39 kg)
Certifications / Standards
Grid Regulation UL 1741SA, Ed. 2, IEEE1547.1-2020,
Safety Regulation IEC/EN 62109-1&2
EMC EN 61000-6-2, EN 61000-6-3, EN 61000-6-1,
EN 61000-6-4

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Safety Information
Important Safety Instructions
SAVE THESE INSTRUCTIONS –This manual contains important instructions that must be read, understood
and obeyed during installation of ESS and/or accessories.
WARNING!
LOSS OF LIFE. THIS PRODUCT IS NOT INTENDED TO BE USED IN A
CRITICAL LIFE SUPPORT APPLICATION. FAILURE TO ADHERE TO THIS WARNING
COULD RESULT IN DEATH OR SERIOUS INJURY
DANGER!
INDICATES A HAZARDOUS SITUATION WHICH WILL RESULT IN DEATH OR
SERIOUS INJURY. THESE CONDITIONS WILL RESULT IN THE TERMS OF THE WARRANTY
BEING VIOLATED.
WARNING! WARNINGS IDENTIFY CONDITIONS OR PRACTICES THAT COULD RESULT
IN PERSONAL INJURY AND SEVERE DAMAGE TO THE SYSTEM. THESE CONDITIONS
WILL RESULT IN THE TERMS OF THE WARRANTY BEING VIOLATED.
CAUTION! CAUTIONS IDENTIFY CONDITIONS OR PRACTICES THAT COULD RESULT IN
DAMAGE TO THE UNIT OR OTHER EQUIPMENT CONNECTED. THESE CONDITIONS CAN
RESULT IN THE TERMS OF THE WARRANTY BEING VIOLATED.
WARNING! INDICATES AN ELECTRIC SHOCK HAZARD.
WARNING!
INDICATES RISK OF FIRE.
WARNING!
INDICATES RISK OF HIGH TEMPERATURE.
WARNING! INDICATES HEAVY OBJECT, RISK OF INJURY.
CAUTION! BEFORE INSTALLING AND USING THIS INVERTER, READ ALL INSTRUCTION
MANUALS AND CAUTIONARY MARKINGS ON THE INVERTER AND ALL APPROPRIATE
SECTIONS OF THIS GUIDE.
WARNING! NORMALLY GROUNDED CONDUCTORS MAY BE UNGROUNDED AND
ENERGIZED WHEN A GROUND FAULT IS INDICATED.

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WARNING! AUTHORIZED SERVICE PERSONNEL SHOULD REDUCE THE RISK OF
ELECTRICAL SHOCK BY DISCONNECTING AC, DC, AND BATTERY POWER FROM THE
INVERTER BEFORE ATTEMPTING ANY MAINTENANCE OR CLEANING OR WORKING
ON ANY CIRCUITS CONNECTED TO THE INVERTER. TURNING OFF CONTROLS WILL
NOT REDUCE THIS RISK.
WARNING! DO NOT DISASSEMBLE THIS INVERTER YOURSELF. IT CONTAINS NO
USER-SERVICEABLE PARTS. ATTEMPT TO SERVICE THIS INVERTER YOURSELF MAY
CAUSE A RISK OF ELECTRICAL SHOCK OR FIRE AND WILL VIOLATE THE TERMS OF
THE WARRANTY FROM THE MANUFACTURER.
WARNING!TO AVOID A RISK OF FIRE AND ELECTRIC SHOCK, MAKE SURE THAT
EXISTING WIRING IS IN GOOD CONDITION AND THAT THE WIRE IS NOT
UNDERSIZED. DO NOT OPERATE THE INVERTER WITH DAMAGED OR SUBSTANDARD
WIRING.
WARNING!UNDER HIGH TEMPERATURE ENVIRONMENT, THE COVER OF THIS
INVERTER COULD BE HOT ENOUGH TO CAUSE SKIN BURNS IF ACCIDENTALLY
TOUCHED. ENSURE THAT THE INVERTER IS ACCESSIBLE AND AWAY FROM HIGH
TRAFFIC AREAS.
WARNING!THIS INVERTER SHOULD ONLY BE INSTALLED BY QUALIFIED
PROFESSIONALS AS THERE IS RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO
PERSONS.
CAUTION! TO REDUCE RISK OF FIRE HAZARD, DO NOT COVER OR OBSTRUCT THE
COOLING FAN.
CAUTION! DO NOT OPERATE THE INVERTER IF IT HAS RECEIVED A SHARP BLOW,
BEEN DROPPED, OR OTHERWISE DAMAGED IN ANY WAY. IF THE INVERTER IS
DAMAGED, PLEASE CALL FOR AN RMA (RETURN MATERIAL AUTHORIZATION).

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Warranty Statement
The following abbreviated guidelines do NOT encompass all SimpliPHI Inverter Warranty details. Failure to
adhere to the Warranty and Installation Manual requirements will Violate the terms of the Warranty. Read the
inverter’s complete Warranty prior to installation and register the inverter or ESS system according to the form
found at the bottom of the same web page address: https://simpliphipower.com/wp-
content/uploads/documentation/SimpliPHI-series/warranty
Before using the inverter, please read all instructions and cautionary markings on the unit and this manual.
Store the manual where it can be accessed easily.
This manual is for qualified personnel. The tasks described in this manual may be performed by qualified
personnel only.
CAUTION: The following will result in damage to your SimpliPHI Inverter and will Violate the terms of the
Warranty.
1. Incorrect Inverter wiring and/or installation
a. Verify polarity at all connections with a standard voltmeter (1) before energizing the system
and (2) on batteries with threaded stud connections, before energizing the system. Reverse
polarity at the SimpliPHI Battery terminals will Violate the terms of the Warranty and may
permanently damage the SimpliPHI Inverter.
2. Pairing the Inverter with incompatible equipment. 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 Violate the
terms of the Warranty.
a. Contact ESS Technical Support at [phone] x 1 regarding the compatibility of any
equipment not explicitly listed in the ‘SimpliPHI Integration Guides’ section of the Product
Documentation web page.
The SimpliPHI Inverter Warranty does NOT cover product damage caused by mishandling or improper use per
the Installation Manual, Integration Guides and Warranty, exposure to liquids, impacts from falling objects or
from being dropped, or attempts to repair the inverter by any party other than SimpliPhi. The complete list of
Warranty Exclusions is included in the SimpliPHI Inverter Warranty document.
CAUTION!AC BREAKER, DC SWITCH AND BATTERY CIRCUIT BREAKER ARE
USED AS DISCONNECT DEVICES AND THESE DISCONNECT DEVICES MUST BE
EASILY ACCESSIBLE.
WARNING! RISK OF VOLTAGE BACKFEED! BEFORE WORKING ON THE
SYSTEM:
• Isolate inverter and check for voltage between all terminals including ground.

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1.0 – Introduction
1.1 – Online Resources
The Product Documentation section of SimpliPhi’s web site (https://simpliphipower.com/product-
documentation/) includes Specification Sheets, Warranties, Installation & Operator’s Manuals, and Integration
Guides for all SimpliPhi’s current and legacy products.
SimpliPhi’s YouTube channel (https://www.youtube.com/channel/UCcuCaLT_G3Hhumteh-pI5yg/videos) has
instructional videos showing various steps of the battery installation process in detail.
1.2 – Technical Support
SimpliPhi Technical Support (805-640-6700 x 1, [e-mail]) is available to take any questions
regarding this manual or general installation questions. For assistance with battery system commissioning,
SimpliPhi asks that a commissioning call be scheduled ahead of time with Technical Support.
We encourage you or your installer to contact SimpliPhi with any questions. 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 that is covered by our Warranty terms & conditions.
1.3 – Product Overview
The SimpliPHI Hybrid Inverter is designed to provide continuous
power from PV solar arrays, batteries, generators and the grid.
When MPPT input voltage of the solar array is within acceptable
range (see specification for the details), the SimpliPHI Inverter is
able to generate power to feed the grid (utility) and charge the
batteries. The SimpliPHI Inverter is an all-in-one inverter that
incorporates dual MPPT inputs for solar without the need for a
charge controller, a battery charger, or integrated AC transfer
switch. It is designed to integrate and optimize multiple AC
generation sources such as the grid and generators for battery
charging and powering loads.
See Figure 1 for a simple diagram of a typical solar system.
2.0 –Safety
For safety reasons, read all instructions and cautionary markings on the SimpliPHI Inverter, and all appropriate
sections of this manual. Failure to follow instructions provided in the Installation Manual, Integration Guides
and/or Warranty will Violate the terms of the Warranty.
2.1 – General Safety Instructions
•Do not operate if the SimpliPHI Inverter has been damaged in any way during shipping or otherwise.
•To reduce the chance of short-circuits, always use insulated tools when installing or working with
SimpliPHI inverters or other electrical equipment.
•Remove personal metal items such as rings, bracelets, necklaces, and watches when working with
SimpliPHI inverters and electrical equipment. Wear insulated gloves and rubber shoes.
•SimpliPHI Inverters pose some risk of shock or sparking during the installation and initial wiring and
connection process. This is consistent with all other solar and battery-based system formats. To
minimize the risk of shock or sparks during the installation and commissioning of the system, make
sure the disconnect and load breakers are in the “OFF” position.
F
IGURE
1:
S
YSTEM
O
VERVIEW

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•To avoid a risk of fire and electric shock, make sure that existing system wiring is in good condition and
that the wire is not undersized. Do not operate the SimpliPHI Inverter in conjunction with damaged or
substandard wiring.
•Do not connect the positive or negative terminal of the solar panel to ground.
These safety precautions are in addition to the Warnings previously outlined on page 4 and 5 of this Manual.
3.0 – Unpacking & Overview
3.1 – What Comes in the Box
Before installation, please inspect the unit. Be sure that nothing inside the package is damaged. You
should have received the following items inside of package:
Inverter unit Inverter Backplate Comms Cable Parallel cable
Additional Panel Screws Wi-Fi Antenna
3.2 – Product Overview
1. PV Connections
2. AC Grid Connections
3. Battery Connections
4. AC Output Connections
5. Generator Connections/Programmable
Load Output/AC Coupling
6. External CT Port (reserved)
7. Dry Contact & USB Comm Port
8. BMS & RS-232 Comm Port
9. LCD Display Panel
10. Front Panel Controls
11. Current Sharing Port
12. Parallel Comm Port
13. PV Disconnect Switch
14. Battery Start Button (DC Start-Up)
Front View
Right View
Bottom View

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4.0 – Installation
4.1 – Precautions
This hybrid inverter is designed for indoor or outdoor use (IP65). Make sure the installation site meets
below conditions:
•Not in direct sunlight.
•Not in areas where highly flammable materials are stored.
•Not in a potential explosive area.
4.2 – Installation Tools & Materials
•Digital Multi Meter
•AC/DC Clamp-On Current Meter
•Wire Stripper
•Impact Driver
•Masonry Bolts (if needed for mounting)
•3mm Allen/Hex Key for removing front panel
4.3 – Selecting a Mounting Location
•Select a vertical wall with load-bearing capacity for installation. Inverter should be installed on
concrete, brick, stucco or other non-flammable surfaces.
•Ambient temperature should be between -13°F~140° F to ensure optimal operation.
•For proper dissipation of heat, allow a clearance of no less than 8 in. to the sides, 18 in. above
and below the unit. Please also allow minimum 3 ft. of clearance in front of the unit.
4.4 – Mounting Hardware
WARNING! REMEMBER THAT THIS INVERTER IS HEAVY! CARE SHOULD BE TAKEN
WHEN LIFTING OUT OF PACKAGING AND DURING THE INSTALLATION PROCESS.
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The SimpliPHI Inverter wall bracket is designed to secure one SimpliPHI 6kW Inverter to a load bearing
surface. The bracket should be mounted directly to the load bearing wall. Mounting brackets should be
mounted into load bearing studs or solid materials with appropriate fasteners (mounting hardware not
included). A qualified installer should be familiar with accomplishing this with the appropriate load bearing
requirements. SimpliPhi Power is not liable for damage caused by the inappropriate installation of mounting of
brackets.
Wall brackets are designed to hold one SimpliPHI Inverter with a weight of 86 pounds. Do not hang from or use
a mounted inverter to support additional weight.
STEP 1: Secure the inverter wall bracket with at least 4 points of attachment. We strongly recommend
installing the bracket across two 16 in. standard spaced studs. The mounting brackets accommodate these
dimensions. To mount on a stud centered on the bracket please also use appropriate anchors, lags or toggles in
the corners of the bracket with no less than 4 total points of attachment (see below). We recommend using
3/8-16 hardware to secure the bracket on the wall.
STEP 2: Make sure the Keyhole on the inverter aligns with the 3/8-16 stud on the wall mount bracket. Secure
the Inverter on the wall mount bracket with 4 x 3/8-16 Serrated flange locknut (included with wall bracket).
4.4 – Sub-panel Installation & Wiring
WARNING! FIRE HAZARD. SUITABLE FOR MOUNTING ON CONCRETE, BRICK,
STUCCO OR OTHER NON-COMBUSTIBLE SURFACES ONLY.
Not Included

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All SimpliPHI systems must incorporate either an Essential Loads sub-panel or a transfer switch kit. 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 SimpliPHI system and the
Essential Loads panel or transfer switch kit, provided wire sizing and voltage drop is calculated and in
accordance with local codes.
Prior to the SimpliPHI system installation, determine which of the home’s circuits will be located either on the
Essential Loads panel or transfer switch kit. Consider the following:
•A 50A double-pole breaker or OCPD is required to be installed within the essential load panel for the
SimpliPHI inverter to be wired to.
1. When grid-connected, the maximum continuous power the SimpliPHI Inverter can deliver to
the Essential Loads panel is 25A at 240VAC (6 kWAC).
2. When off-grid, the maximum power the SimpliPHI can deliver to the Essential Loads panel
(also considered the main house breaker panel in an off-grid application) is 25A continuous at
240VAC (6 kWAC) and 50A peak at 240VAC (12 kWAC) for 100 milliseconds.
4.5 – Conduit Installation
Before making any wire connections install conduit on all input, output, solar and battery terminals. Conduit is
not supplied with the inverter.
•The conduits, hubs and fittings must be rated for outdoor installation and meet code requirements per
your AHJ.
•All hubs and fittings must comply with UL514B
NOTE: Clamps and fasteners for the attachment of conduit, electrical metallic tubing, armored cable,
nonmetallic flexible tubing, nonmetallic-sheathed cable, service cable, or equivalent that are supplied as part of
an enclosure must comply with the standard for Conduit, Tubing, and Cable Fittings, UL 514B.
STEP 1: Prepare one conduit pipe and two knockouts for each terminal.
Terminal Type Trade Size Fitting
Outer Diameter
Utility, Load, Generator, Solar Input ¾” 1 1/8”
Battery Terminals
1” 1 3/8”
STEP 2: Install conduit pipe with two knockouts on the Grid/Utility terminal as shown below
STEP 3: Repeat STEP 2 for other connections: generator, solar input and battery terminals separately.

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5.0 – Grid (Utility) Connection
5.1 – Preparation
NOTE 1: The overvoltage category of the AC Input is III. This input should be connected to the power grid.
NOTE 2: Before connecting to grid, a properly sized and rated breaker between inverter and grid must be
installed. This will ensure the inverter can be securely disconnected during maintenance and fully protected
from over current.
WARNING: It is especially important for system safety and efficient operation to use appropriate cable for grid
(utility) connection. To reduce risk of injury, please use the proper recommended cable size as below.
Table 5.0 – AC Wiring Sizing
Suggested Cable Requirement for AC Wire
Nominal Grid Voltage 120/240 VAC
AWG
10 - 6
5.2 – Connecting to the AC Utility
Please follow below steps to implement AC input connection:
•Strip approximately ½” of the insulation on each of the conductors.
•Insert AC input wires according to polarities indicated on terminal block and tighten the terminal
screws.
WARNING! MAKE SURE THAT THE AC POWER SOURCE IS DISCONNECTED BEFORE
ATTEMPTING TO INSTALL AND WIRE WITHIN THE INVERTER. NOT DOING SO WILL
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1. GND (Ground) Green
2. N (Neutral) White
3. L2 Red
4. L1 Black
6.0 – Load (AC Output) Connection
6.1 – Preparation
WARNING!
IT'S VERY IMPORTANT FOR SYSTEM SAFETY AND EFFICIENT OPERATION
TO USE APPROPRIATELY SIZED WIRE FOR AC CONNECTION. NOT DOING SO WILL
VIOLATE THE TERMS OF THE WARRANTY. DO NOT CONNECT THE UTILITY TO “AC OUTPUT
CONNECTION (LOAD CONNECTOR).” ALL CONNECTIONS SHOULD BE IN ACCORDANCE
WITH THE BELOW INSTRUCTIONS. NOT DOING SO WILL VIOLATE THE TERMS OF THE
WARRANTY.
CAUTION! APPLIANCES SUCH AS AIR CONDITIONERS REQUIRE AT LEAST 2~3
MINUTES TO RESTART TO HAVE ENOUGH TIME TO BALANCE REFRIGERANT GAS
INSIDE OF CIRCUITS. IF A POWER SHORTAGE OCCURS AND RECOVERS IN A
SHORT TIME, IT MAY CAUSE DAMAGE TO YOUR CONNECTED APPLIANCE. TO
PREVENT THIS KIND OF DAMAGE, PLEASE CHECK MANUFACTURER OF AIR
CONDITIONER TO CONFIRM THAT IT IS EQUIPPED WITH TIME-DELAY FUNCTION
BEFORE INSTALLATION. OTHERWISE, INVERTER/CHARGER WILL TRIGGER
OVERLOAD FAULT AND CUT OFF OUTPUT TO PROTECT THE APPLIANCE. THIS MAY
STILL RESULT IN DAMAGE TO THE AIR CONDITIONER OVER TIME.
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To reduce risk of injury, please use the proper recommended cable size as listed below
Table 6.0 –Wiring Sizing
Suggested Cable Requirement for AC Wire
Nominal Grid Voltage 120/240 VAC
AWG
10 - 6
6.2 – Connecting the Load Output Connection
Please follow below steps to implement AC load output connection:
•Strip approximately ½” of the insulation on each of the conductors.
•Insert AC output wires according to polarities indicated on terminal block and tighten the terminal
screws.
1. GND (Ground) Green
2. N (Neutral) White
3. L2 Red
4. L1 Black
7.0 – Battery Connection
The SimpliPHI Inverter is designed for integration with all SimpliPhi battery products, including PHI, AmpliPHI,
and SimpliPHI. Other batteries may be paired with the SimpliPHI Inverter. Make sure that you follow battery
manufacturers integration guides, settings and installation manuals for pairing with the SimpliPHI Inverter. If
using a smaller battery bank, adjustments to the charge/discharge settings will need to be made to avoid
damage to the batteries.
Before connecting to batteries install separately a 60 VDC/200 ADC circuit breaker between the inverter and
the batteries.
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NOTE 1: Always check the maximum charging voltage and current allowable for the batteries when first
installing the inverter. These settings should be appropriately programmed into the inverter prior to
commissioning.
NOTE 2: Overvoltage category of the battery input is II.
CAUTION: Before connecting SimpliPHI batteries be sure that its breaker is in the OFF position.
Please follow below steps to implement battery connection:
Step 1: Check the nominal voltage of batteries. The nominal input voltage for inverter is 48 VDC.
Step 2: For each battery to inverter connection, it is required that you have one negative and one positive,
each originating from opposite ends of each string of batteries.
Step 3: Remove insulation sleeve (10 mm) and insert bare cable end into a 1 1/32” width battery lug.
The cable size of each inverter is shown as below:
Table 7.0 –Wiring Sizing
Recommended Battery Cable and Terminal Size for Each Inverter
Wire Size Minimum Cable Lug Maximum Dimensions Torque Value
2/0
1 1/32” W
2”
3 ft lbs. / 36 in lbs.
Step 4: Insert battery wires according to polarities indicated on the terminal block and tighten the
terminal screws to 36-inch pounds. Make sure polarity at both the battery and the inverter/charger is
connected correctly. Use the provided bolts and washers to secure the battery cables.
WARNING!WRONG CONNECTIONS WILL DAMAGE THE UNIT PERMANENTLY AND
VIOLATE THE TERMS OF THE WARRANTY!

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8.0 – PV Module (DC) Connection
The SimpliPHI inverter has two MPPT inputs for different string lengths or orientations along with an
integrated Rapid Shutdown Transmitter. This RSD transmitter is compatible with AP Smart rapid shutdown
devices which can be mounted to the back of each solar module (sourced separately). This RSD transmitter in
the inverter must be connected to an approved, remotely accessible E-Stop device that is readily available to
emergency personnel.
Each of the MPPT inputs can handle a maximum combined STC Short Circuit Current (Isc) of 21A with a
minimum input voltage of 160VDC and a maximum of 550VDC per string at expected operating conditions.
Parallel strings of equal length can be combined per each MPPT input as long as they meet the minimum and
maximum requirements stated in this manual. Each series string length should not exceed Voc of 600VDC at
maximum expected operating conditions. Consult the solar module specification sheet for operating
parameters to determine proper string sizing.
NOTE 1: Please use breakers that are rated for 1000VDC/20A
NOTE 2: Overvoltage category of the PV input is II.
SimpliPHI System Solar PV Array Sizing
The SimpliPHI 6kW built-in MPPT charge controller specifications are:
•Quantity of built-in MPPT charge controllers per SimpliPHI 6kW = 2
oQuantity of PV ports per MPPT charge controller = 2
oTotal quantity of PV ports per SimpliPHI 6kW = 4
•MPPT charge controller starting voltage = 125VDC , Initial Feed In Voltage: 160VDC
•Maximum DC Voltage input per MPPT charge controller = 600VDC
•MPPT charge controller voltage range = 120 - 550VDC
•Maximum ISC current input per MPPT charge controller = 21A
•Maximum operating current input per MPPT charge controller = 15A
•Maximum battery charging current per SimpliPHI 6kW = 100A
To properly configure solar PV modules to the SimpliPhi’s built-in charge controllers:
CAUTION!BEFORE CONNECTING TO PV MODULES, PLEASE INSTALL
SEPARATELY
A
RAPID SHUTDOWN OR EMERGENCY POWER OFF BUTTON AND TIE IN TO THE AP
SMART MODULE RELAY IN THE INVERTER.
WARNING!
EXCEEDING THE MAXIMUM INPUT VOLTAGE CAN DESTROY THE UNIT
AND VIOLATE THE TERMS OF THE WARRANTY!! CHECK THE PV SYSTEM WIRING
CONFIGURATION BEFORE MAKING YOUR FINAL CONNECTIONS.
WARNING! IT IS CRITICAL THAT THE SOLAR PV STRING’S VOLTAGE DOES NOT
EXCEED 600 VOC; VOLTAGE GREATER THAN 600 VDC FOR LONG PERIODS OF TIME
WILL DAMAGE THE SIMPLIPHI EQUIPMENT AND VIOLATE THE TERMS OF THE
WARRANTY.

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1.
Due to the charge controller’s starting voltage of 160VDC, calculate the minimum number of solar
panel modules needed to meet this target voltage at the module’s maximum power voltage (VMP).
In this example, consider the Canadian Solar KuPower CS3K-300 solar PV module with a VMP
of 32.5V at Standard Test Conditions (STC).
• Five modules in series are required to meet the charge controller’s minimum MPPT
tracking voltage requirement: 160V ÷ 32.5V = 4.9 (round up to the next whole
number).
2.
The charge controller’s maximum DC voltage input is 550VDC. Temperature affects the solar PV
module’s voltage output: voltage increases as temperature decreases. To calculate the maximum
number of solar panel modules in series per PV string, consider the module’s open circuit voltage
(VOC) rating, temperature coefficient and lowest expected temperature at the installation site.
In this example, the KuPower 300W module has a VOC of 39.3V at STC, a STC temperature
of 25°C, and a VOC temperature coefficient of -0.29%/°C.
To calculate the solar module’s VOC in an extreme low temperature condition of, say, -10°C:
 = ×{1 + [( )×()]}
 =39.3 ×{1 + [( )×(0.29% 
)]}
Remember to convert the percentage value given as the VOC temperature coefficient to a decimal.
 =39.3×{1+[()×(0.0029 
)]}
 =39.3×1 + ()×0.0029

 =39.3×{1 + [(0.1015)]}
 =39.3× 1.1015
 =.
•Twelve modules are the maximum allowable number of modules in series to prevent the solar
PV string from exceeding the charge controller’s maximum voltage input rating even in the
coldest weather conditions at the installation site: 550V ÷ 43.3V = 12.7 (round down to the
next whole number).
oTwelve modules in series at the KuPower 300W module’s VMP rating of 32.5V at STC
also equates to 390V, well within the charge controller’s 120-550VDC maximum
power point tracking range.
3.
The charge controller’s maximum short circuit current (ISC) input is 21ADC. Temperature also
slightly affects the solar PV module’s current output: current increases as temperature increases.
However, because the temperature coefficient is negligible, it is acceptable to simply use the
module’s ISC rating at STC for the following calculation.
To calculate the maximum number of solar PV strings per charge controller in this example,
consider the KuPower 300W module’s ISC at STC: 9.82A.
•According to this calculation, two solar PV strings is the maximum allowable number of strings
per charge controller: 21A ÷ 9.82A = 2.13 (round down to the next whole number).

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oAlthough the SimpliPHI 6kW contains only two solar PV string inputs, more than two
strings in parallel can be wired to the SimpliPHI 6K. If more than two strings are
connected in parallel to a single charge controller, each string must be fused.
oTwo solar PV strings in parallel at the KuPower 300W module’s IMP rating of 9.24A
equates to 18.48A at STC, well within the limits of the charge controller’s short circuit
current input limit of 21A.
Based on calculations #2 and #3 above, a maximum of two parallel strings of twelve KuPower 300W
modules in series can be wired to each of the SimpliPHI 6kW’s two charge controllers.
4.
The charge controller can be paired with a maximum 3,750 Watts of solar PV Wattage.
In this example, the KuPower 300W module has a Maximum Power (PMAX) rating of 300W at STC.
•12 modules are the maximum allowable number of modules that can be paired per charge
controller: 3,750W ÷ 300W = 12.5 (round down to the next whole number).
5. The SimpliPHI 6kW (with two built-in charge controllers) can be paired with a maximum 7,500
Watts of solar PV Wattage.
In this example, the KuPower 300W module has a Maximum Power (PMAX) rating of 300W at STC.
•25 modules are the maximum allowable number of modules that can be paired per SimpliPHI
6kW Inverter: 7,500W ÷ 300W = 25.
Considering all five of the above calculations, the optimal solar module configuration in this example is
wiring a maximum of two parallel strings of twelve KuPower 300W modules in series to each of the two
SimpliPHI 6kW’s two charge controllers, for a total of 24 modules paired with the SimpliPHI 6kW.
To avoid any malfunction, do not connect PV modules with the possibility of current leakage to the inverter.
For example, grounded PV modules will cause leakage current to the inverter.
CAUTION: It is recommended to have a PV junction box with surge protection. Not having appropriate surge
protection with lightning arrestors can cause high voltage to enter the inverter and damage the electronics.
Damage caused by high voltage input will Violate the terms of the Warranty.
PV Connections
Step 1: Check the input voltage of PV array module strings with a multi-meter. The acceptable input voltage
of the inverter is 120VDC - 600VDC and current should not exceed 15A (or 21A Isc)
Step 2: Turn your PV circuit breaker, RSD device and PV disconnect switch to the OFF positions.
Step 3: Strip approximately ½” of the insulation on each of the conductors.
WARNING:
BECAUSE THE SIMPLIPHI INVERTER IS NON-ISOLATED ONLY TWO
TYPES OF PV MODULES ARE ACCEPTABLE: CLASS A-RATED MONO-CRYSTALLINE
AND POLY-CRYSTALLINE MODULES.