This manual contains important instructions that shall be followed during installation and
maintenance of the PVI13KW Inverter.
To reduce the risk of electrical shock, and to ensure the safe installation and operation of the
inverter, the following safety symbols are used to indicate dangerous conditions and important
safety instructions.
WARNING: This indicates a fact or feature very important for the safety of the
user and/or which can cause a serious hardware damage if not applied
appropriately.
Use extreme caution when performing this task.
NOTE: This indicates a feature that is important either for optimal and efficient
use or optimal system operation.
EXAMPLE: This indicates an example.
SAVE THESE INSTRUCTIONS
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PVI13KW Installation and Operation Manual
IMPORTANT SAFETY INSTRUCTIONS
• All electrical installations shall be done in accordance with the local and national
electrical codes ANSI/NFPA 70.
• The PVI13KW contains no user serviceable parts. Please contact Solectria Renewables
or a Solectria Renewables authorized system installer for maintenance. (See pa ge 37 for
Solectria Renewables contact information and authorized system installers.)
• Before installing or using the PVI13KW, please read all instructions and caution
markings in this manual and on the PVI13KW unit as well as the PV modules.
• Connection of the PVI13KW to the electric utility grid must be done after receiving prior
approval from the utility company and performed only by qualified personnel.
• Completely cover the surface of all PV-arrays with opaque (dark) material before wiring
them. PV arrays produce electrical energy when exposed to light and could create a
hazardous condition.
2.1 Checking for Shipping Damage…………………………………...………. 6
2.2 Inverter Mounting.……………………………………………..………….. 6
2.3 Electrical Connection and Connection to Electrical Utility Grid. ………… 11
3 Commissioning the Inverter PV System …………………………………………….. 18
4 Power, GFDI and Error LED Indicators …..…………………………………..….…. 19
5 Troubleshooting & Opening the Main Enclosure………….………………...………. 22
6 Warranty Information and Liability………………………………..………………… 25
7 Technical Data…………………………………………………..…………….……… 29
8 Appendices…………………………………………………………………...……… 35
Appendix A: Product Datasheet……………………………………………...……… 35
Appendix B: Example String Sizing………………………………………...……….. 37
Appendix C: Contact Info and Authorized Distributors, Dealers and Installers……... 40
Appendix D: UL 1741 Listing Letter…………………………………….……………41
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1 Introduction
The PVI13KW is a commercial, 3-phase grid -tied PV inverter designed to be inter-connected to
the electric utility grid. With this manual the PVI13KW can be installed and operated safely.
This installation guide is used as reference for the co mmissioning and as a guideline on how to
use the inverter most effectively.
Feeding power into the grid involves conversion of the DC -voltage from the PV-array to grid
compatible AC -voltage by “inverting” DC to AC. This unit feeds power into a standard 208V
AC, 3-phase commercial, industrial or institutional facility’s electrical system which is
connected to the electrical grid. (A 480V AC version is also available.)
If the PV system and inverter are providing the same amount of electrical power that the facility
is using then no power is taken from or fed into the utility grid. If the facility is using more
power than the PV system is providing, then the utility grid provides the balance of power. If the
facility is using less power than the PV system is generating, then the excess is fed into the utility
grid.
Be sure to look into local regulations regarding Net Metering/inter-connection in your local area.
Note that some utilities need to change their revenue kWh meter for proper Net metering
measurement and billing.
Photovoltaic
Array
PVI 13KW
Inverter
Electrical
Grid
Fig. 1 Grid tied inverter application
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PVI13KW Installation and Operation Manual
2 Installation
WARNING: Before installing the PVI13KW, read all instructions and caution
markings in this manual and on the PVI13KW as well as on the photovoltaic
modules.
WARNING: Electrical installation shall be done in accordance with all local
electrical codes and the National Electrical Code (NEC), ANSI/NFPA 70.
WARNING: Connecting the PVI13KW to the electric utility grid must only be
done after receiving pr ior approval from the utility company and installation
completed only by qualified personnel/licensed electrician(s).
2.1 Checking for Shipping Damage
The PVI13KW inverters are thoroughly checked and tested rigorously before they are shipped.
Even though they are delivered strapped onto a rugged, oversized pallet or in a crate, the
inverters can be damaged in shipping which typically is the shipping company’s fault in most
cases.
Please inspect the inverter thoroughly after it is delivered. If any dama ge is seen please
immediately notify the shipping company. If there is any question about potential shipping
damage, contact Solectria Renewables. A photo of the damage may be helpful.
Do not accept unit if visibly damaged or note visible damage when signing shipping company
receipt. Report damage immediately to shipping company. Do not remove the unit from
pallet/packaging. If it is determined that the unit must be returned, an RMA# must be obtained
from Solectria Renewables.
2.2 Inverter Mounting
PVI13KW inverter is made up of a NEMA 3R (rainproof) industrial enclosure containing
electrical and electronic components including transformer, filters, contactor, fusing, a sealed
IP65 power & control electronic inverter unit (DMGI245) and AC and DC d isconnects mounted
on the sides of the main enclosure.
NOTE: If the PVI13KW is mounted outside, make sure the enclosure door remains
closed in case of rain during the installation process. Since the AC and DC
connections aredone in the disconnects only, there is no need to open the main
enclosure during hook-up.
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Notes regarding mounting and placement of the inverter.
Criteria for device mounting:
• Because the power electronics is in an IP65 sealed enclosure within the NEMA 3R main
enclosure, the inverter can be mounted outdoors.
• The very longest life for the inverter can be achieved by mounting it in a clean, dry and cool
location even given the unit’s robust construction and powerful cooling system.
• For optimal electrical efficiency, use the sho rtest possible AC and DC cables and use the
maximum allowable cable size.
• Avoid installation in close proximity to people or animals, as there is a small amount of high-
frequency switching noise.
• Install the inverter in an accessible location following NEC codes for enclosure and
disconnect door clearances and proximity to other equipment. (See mounting diagram, Fig.
2.2a & 2.2b)
• Although not required, installation at eye -height allows easy reading of the indicator LEDs
on the right side of the inverter above the DC (PV) disconnect.
• For optimal inverter life and performance, do not mount the inverter in direct sunlight,
especially in hot climates, although the inverter is designed to function at full power
continuously in up to 45oC ambient temperatures. In hot climates if the unit must be
mounted in direct sunlight a metal sun-shield is recommended. It is recommended that the
inverter is mounted on the north side of buildings or on the north side of a PV array (which
can provide some shade).
CAUTION: Please follow these guidelines:
• The inverter weight is 380 lbs. Be sure to verify load capacity of floor, roof or wall
mounting area.
• The ambient temperature must be between –20oC and +45 oC for full power, continuous
operation. (The inverter will automatically reduce power or shut down to protect itself if
ambient air temperature rises above 45 oC.)
• The National Electrical Code (NEC) requires that the inverter be connected to a dedicated
circuit and no other outlets or device may be connected to t his circuit. See NEC Section 69064(b)(1). The NEC also imposes limitations on the size of the inverter and the manner in
with it is connected to the utility grid. See NEC Section 690-64(b)(2).
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• The cooling air exhausts at the bottom of the unit. Nothing should block the 2” clear space
under the enclosure defined by the 2” tall mounting feet.
• A minimum distance of 10 inch (250mm) must be clear above the inverter for ventilation.
• The inverter must be mounted with at least a 2” open space behind it. (If wall-mounted,
vertical, 2” x 2” uni-strut or channel can be used.) Air should be able to flow up behind the
unit from below it to above it.
• If you are installing the inverter in a utility vault or electrical closet, the air circulation must
be sufficient for heat dissipation – provide external ventilation, to maintain an ambient
condition of less than 45 oC. The ambient temperature should be kept as low as possible.
• Correct mounting positions for the inverter: (side views)
Fig. 2.1How to mount the inverter
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Fig. 2.2aPVI13KW Mounting Diagram
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PVI13KW Installation and Operation Manual
Fig. 2.2b PVI13KW Mounting Diagram
Mounting Details
Using the mounting diagram Fig. 2.2 (a & b), choose whether floor/roof, wall or stand
mounting will be used. The inverter includes mounting feet for attachment to floors, roofs/roof
plates/roof pans or stands. It also includes mounting tabs for wall mounting. You can also use
a combination of both mounting provisions. For example, 2 bolts in floor mount feet and 2
bolts in the wall mount tabs.
It is recommended to use galvanized grade 5 or better bolts or stainless steel bolts. The correct
bolt size is 3/8” (10mm) diameter. If wall mounting is used, be sure to verify sheer and pullout
strength of anchors or other wall attachments.
WARNING: Severe injury or death could occur if the inverter mounting fails and
the unit falls on a person.
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NOTE: Always use all 4 mounting tabs if wall mounted.
NOTE: The nearly 380 lb. weight of the inverter will exert as much as 100 lbs.
per bolt on the 4 wall mounts. Tension on the top bolts could also be 100 lbs.
Make sure an appropriate safety margin is used for both shear and tension of wall
mounting bolts, anchors or other attachments.
NOTE: If the roof/floor mounting only uses the inverter’s mounting feet, be sure
you use all 4 available foot mount bolt positions. If a stand is used, be sure
inverter is securely mounted to stand, the stand is adequately designed for the
unit’s weight and the stand is adequately attached to the floor/wall or roof.
NOTE: In the case of roof/floor mounting, temporary removal of disconnect
doors may facilitate easy wiring of the unit (only while wiring) however, only do
so if necessary and acceptable by local codes and applicable NEC requirements
related to your particular mounting configura tion. (Do not ever leave disconnect
or main enclosure doors open when you are not actually working on the unit.)
2.3 DC Electrical Connection and AC Connection To
Building and Electrical Utility Grid
Fig. 3 Simplified electrical connection diagram
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DC
PV combiner
Fused AC
Main enclosure
Cooling Air
LED
Warning
Nameplate,
Disconnect
indicators
with integrated
inverter,
transformer
filters and
contactor
Label
In take
Fig. 4 “Integrated Inverter Package”
WARNING: All electrical installations shall be done in accordance with all local
electrical codes and the National Electrical Code (NEC), ANSI/NFPA 70.
The negative DC, Photo voltaic connection is grounded within the inverter through
the ground fault detection and interrupt circuit (GFDI). The PV negative should not
be grounded at any other point in the system. The PV positive must never be
grounded at any time.
When conduit hubs are used on the AC and DC disconnect boxes in an outdoor or
wet location, rain-tight or wet location hubs that comply with the requirements in
the Standard For Fittings For Conduit and Outlet Boxes, UL514B, are to be used.
For AC, 3-phase wiring, us e 6 AWG, (recommended for the 208VAC version)
minimum 90oC (194oF), copper wire for connection with the inverter’s 3-phase AC
disconnect. (8 AWG recommended for the 480VAC version.) Torque terminal
screws to 45-50 in-lb. Voltage drop and other considerations may dictate that larger
wire sizes be used. (A maximum of 2 AWG copper conductor wire, and 4 AWG
copper ground wire can be used, but verify that any wire size choices meet NEC
requirements)
For DC/PV wiring with the integrated, fused PV combiner ( with 10-15 Amp fuses),
use 12 AWG minimum 90oC (194oF) copper wire (10AWG recommended for most
DOC-020028 rev 006 12
disconnect
with fused
(if equipped)
specs. and ETL,
UL1741
Certification
PVI13KW Installation and Operation Manual
installations) for each positive lead of each PV string. Connect to each fuse and
torque screws to 12 in–1b (1.3Nm). This fuse and wire rating must be compatib le
with PV module fuse and short-circuit current rating per NEC 690. (A maximum of
8 AWG copper wire can be used.) The negative PV string connections are made to
negative terminal block. Torque screws to 35 in–1b (13.5Nm). 4 AWG
(recommended) DC equipment ground should be connected to the ground bar or if
multiple 12-8 AWG DC equipment grounds meet NEC requirements for the
installation, these can be terminated on the ground bar.
If the inverter is not equipped with an integrated fused PV combiner, a minimum
wire size of 6 AWG, 90oC (194oF) copper wire must be used. (A maximum of 2
AWG copper wire can be used for positive & negative conductors and 4 AWG DC
equipment ground. It is also possible to use larger than 2 AWG + & - conductors if
NEC and local code allows it for your installation and configuration. The + & terminal block is rated to fit up to 1/0 AWG.) Torque screws to 120 in-lb.
The installation of a Delta lightning surge arrester or other UL listed arrester of the
correct specification is recommended. This can be installed on the outside of the
DC disconnect and wired using the manufacturer's directions. This device gives
important added protection from indirect lightning strikes and resulting surges that
provide protection beyond the inverter's UL1741 requirements. An additional
arrestor can also be placed on the AC disconnect.
As with all PV systems, a Grounding Electrode Conductor must be installed per
UL690.47 (and 250.166). This conductor should be sized according to these NEC
requirements. This conductor should be terminated on the ground bar in the DC
disconnect.
WARNING: The wiring connections of the inverter to the DC -voltage from the PV
strings and the AC -voltage of the utility must be done with the AC and DC
disconnects off, building AC source circuit panel/breaker off and the PV module
strings disconnected (or covered up).
• Connect the building, 3-phase conductors and AC equipment ground at AC
disconnect “LINE” terminals and ground bar.
• Connect the PV strings to the DC disconnect enclosure fuses (+) and
negative terminal (-) if the inverter is equipped with fused PV combiner or
connect the (+) and (–) PV array feeds to (+) and (–) terminals in the
inverter DC disconnect if the inverter is not equipped with a fused PV
combiner. Connect the DC equipment ground to the ground bar.
• Connect PV modules and strings or uncover them.
• Verify proper AC and DC voltages and polarity. Turn on the inverter by
switching building/utility 3-phase breakers ON then turning on inverter’ s
AC disconnect, then DC disconnect.
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Connection to dedicated 208V
45A Fuses (for 208V AC
use 40A fuses, AJT40, Solectria
AC Equipment Ground
wire
Example customer/installer
Fig. 5 AC disconnect
To disconnect the inverter from the building/utility grid, turn off the DC disconnect, then the AC
disconnect. Turn off the AC 3-phase building/utility breaker if needed.
AC, 45A 3-phase circuit. 8-2
AWG copper wire. Torque to
45-50 in-lb. (Shown without
plastic safety cover). If 480V
AC version, circuit should be
to 7 connections
12-8 AWG copper
wire torque to 35
connections (12 in-lb) 12-8
AWG copper wire only
(open showing connection)
customer/installer
knockout, connector &
wires. (7 PV (+), one
PV (-) feed, & ground).
It is best to run
individual PV(-) feeds
for each PV string to
avoid combining
negatives at the array.
connections 4-2
AWG copper wire
torque to 120 in-lb.
connections 6-4
AWG copper wire
Combiner (open showing connection)
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connections 4-2
AWG copper wire
torque to 120 in-lb.
wires not shown.
PVI13KW Installation and Operation Manual
WARNING: Fuses in the inverter’s AC disconnect must only be replaced with
Solectria Renewables Part Number ELC -110110, or 45A, 600V, Type J, Feraz,
GOAJT40 fuse. (Or 40A fuse of the same type for 480V AC version, Solectria
Renewables Part Number ELC-110102)
WARNING: If inverter is equipped with the fused PV combiner, fuses in DC
disconnect must only be replaced with 500-600V DC rated fast-acting fuses, such as
Solectria Renewables Part Number ELC-110013-001, or 10A midget, Bussman,
KLM-10. Always refer to PV module fuse ratings and specification before
selecting or replacing fuses.
Connection Wiring To Electrical Utility Grid
The PVI13KW must be connected to the grid with 3 conductors and an AC equipment grounding
conductor. A 50A breaker is recommended for the dedicated PV system circuit breaker for the
208VAC version. (a 30A circuit breaker is recommended for the 480VAC version.)
The grid impedance value at the connection point should be as low as possible to avoid an
increase of the AC-voltage to non-permissible values while the inverter feeds to the grid.
Minimizing wiring impedance also results in higher system efficiency.
EXAMPLE: The impedance is the sum of the electricity grid impedance at building
distribution and all impedance values of conductors and connections.
Single conductor impedance values are:
• approximately 0.16 ? for a 250 feet (76.2 m) 8 AWG conductors
• approximately 0.10 ? for a 250 feet ( 76.2 m) 6 AWG conductors
• approximately 0.06 ? for a 250 feet (76.2 m) 4 AWG conductors
• Conductor impedance of < 0.10 ? is recommended
The total impedance phase to phase of the grid plus the interconnecting AC conductors should be
less than 0.2 ?.
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Connection of the PV -panels to the DC disconnect enclosure with or without
integrated fused PV combiner
WARNING: Follow PV module manufacturer’s directions. PV-arrays produce
electrical energy when exposed to light and could create a hazardous condition.
(One method used to assure safety from shock is to completely cover the surface of
all PV-arrays with opaque (dark) material before wiring them.)
Depending on the type of PV-modules used it is possible to use several parallel strings.
(Appendix B shows some example PV string sizing tables.)
WARNING: Before connecting the connectors of the PV-panel to the DC
disconnect enclosure fused PV combiner (if equipped) or + and – terminal block if
not equipped with combiner check the correct polarity and admissible PV-panel
voltage between the + and the - cable connectors of the PV panel.
The PV-panel open circuit voltage must be below 450V DC (V
under all conditions as per NEC 690-7. Please read the Technical Info section and
see PV string sizing table in Appendix B.
< 450 V DC)
pv
Inverter with fused PV combiner in DC disconnect enclosure:
There are 7 fuse blocks for up to 7 PV strings of 10-15A fuse rated PV module strings. The
positive (+) wire from each string is connected to each fuse block bottom screw terminal. There
are also 7 negative positions to be used for negative (-) connections on the negative (-) terminal
blocks.
Inverter without fused PV combiner in the DC disconnect enclosure:
There is a positive and negative terminal block for connection of a combined PV power feed
from a customer-provided external fused PV combiner.
WARNING: A fused, correctly rated PV combiner must be used with this version
of the inverter.
WARNING: Even when in the off position, the DC disconnect will remain live on
the PV side (“line”) when the PV modules are in daylight. The inverter (“load”)
side of the disconnect will also remain live after the disconnect has been shut off
until 60 seconds after the LEDs turn off, as electrolytic DC bus capacitors in the
inverter discharge.
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3 Commissioning the Inverter PV System
The inverter is mounted, all connections are made and you are ready to power it up.
NOTE: Make sure all tools; parts, etc. are removed from the vicinity of the
inverter before turning on.
WARNING: Make a final check for correctness of all AC and DC wiring to the
inverter and in the system.
NOTE: With the PV modules connected and inverter disconnects still off, it is a
good final precaution to check PV polarity once more simply by carefully using a
600V, DC rated digital volt meter and probing the positive (+) and negative (-)
PV connections in the disconnect enclosure.
Turning on the inverter:
• Turn on the dedicated 3-phase circuit breaker on the building electrical panel
• Turn on the PVI13KW inverter’s 3-phase AC disconnect
• Turn on the PVI13KW inverter’s DC disconnect
• Watch the LED indicators for initialization (all three LEDs on)
• Listen for contactor clunk (inverter on-line)
• Listen for slight 60 Hz hum (transformer on-line)
• Watch for blinking green LED and high frequency switching sound (inverter on-line and
beginning to feed power into 3-phase circuit) inverter is operating normally
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PVI13KW Installation and Operation Manual
Operation:
The control electronics and DSP will be active as soon as DC (PV) voltage reaches 200V DC.
The inverter will go on-line with the utility/building 3-phase grid when the DC voltage first
exceeds 250V DC. Next, the inverter will load the array, bringing the DC voltage down from
250V DC to not less than 225V DC.
Once there is enough PV power at 225V DC to back feed 3-phase AC power switching will
automatically feed power to the grid.
Because the inverter goes completely off line at night or in dark conditions when no power can
be produced, there are no idling losses, adding 1-2% additional energy production annually over
an inverter design that remains on all the time.
Operating states, GFDI status and error indications shown by the LED indicators, which are
described in chapter 4, “Power, GFDI and Error LED Indicators”.
4 Power, GFDI and Error LED Indicators
The inverter operates automatically without the need for user interaction or maintenance.
The PVI13KW automatically starts back feeding 3-phase AC power into the grid every morning
as the sun rises, as soon as sufficient DC voltage and PV power is available. The inverter DSP
runs through various checks before going online with the grid and feeding power into the grid.
The LED indicators mounted on the right-hand side of the enclosure just above the DC
disconnect give the installer and user a good, quick look at what state the inverter is in and if it is
operating normally.
GREEN – indicates “power”, the unit is powered up and/or feeding power to the grid
RED – “ERROR” or “FAULT”, the inverter is not providing power due to an error or fault
RED & YELLOW – together indicate that a ground fault has been detected and it must be
located before the inverter will function. Check GFDI fuse if RED LED remains as solid.
If the GFDI fuse is blown, see “Opening the Main Enclosure” section and Fig. 9, “Description
and Location of Components”. Follow these instructions carefully (disconnecting AC & DC
power) and locate, check and replace the GFDI fuse with a 3A midget fuse 500V DC or 600V
DC rated such as Solectria Renewables P/N ELC-110037-001, or Bussman, KLM-3.
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PVI13KW Installation and Operation Manual
Fig. 8 View from right-hand side of inverter above DC (PV) disconnect
Description of LED symbols used to indicate LED status in this manual
LED Off
LED flashing (25% on, 75% off)
LED on once per second
LED on two times per second
LED on with short interruptions (75% on, 25% off)
LED on
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PVI13KW Installation and Operation Manual
LED indicator Operating condition Description
green:
yellow:
red:
green:
yello w:
red:
green:
yellow:
red:
green:
yellow:
red:
PV open circuit voltage)
green:
yellow:
red:
green:
yellow:
red:
green:
yellow:
red:
green:
yellow:
red:
green:
yellow:
red:
green:
yellow:
red:
green:
yellow:
red:
green:
yellow:
red:
green:
yellow:
red:
AC disconnect/breaker to be closed Is absent
standby (night) input voltage < 300 VDC
initialization unit is being initialized
stop input voltage low <325V
stop input voltage high
(600 VDC is the maximum allowable
waiting, presence of valid grid conditions
checking grid Is being checked
waiting for grid voltage
feeding grid normal daytime operation
MPP or constant voltage mode
de-rating mode reduction of power fed to the grid
waiting for available DC power is too low
stronger sun
ground fault ground fault of the PV panels
GFDI fuse failure GFDI fuse is defective
failure internal or external failure, exact
utility failure
unit attempts to restart every five minutes
due to increased temperature of
description on blink code
call Solectria Renewables
a failure of the utility (i.e. a blackout or
> 550V
the heat sink
see chapter 5
see chapter 5
brownout) has occurred
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5 Trouble Shooting
The PVI13KW is designed, produced and rigorously tested for long life and reliability in a wide
range of climate conditions, voltage and power levels.
With a properly shipped, sited, mount ed, wired and tested installation, the integrated PVI13KW
inverter unit should give many years of trouble-free and maintenance-free service.
The following trouble shooting information will help in the event that the inverter does not
function, stops funct ioning or does not provide full performance.
WARNING: Before attempting to open disconnects or the main enclosure, read
the entire manual, especially warning messages and “Opening The Main Enclosure”
later in this section. Only qualified personnel should attempt to open any of these
enclosure doors or do any service or troubleshooting.
PV system not functioning
• Check LED indicator status
• Check connection to grid, 3-phase AC power
• Check DC (PV) string connections or main PV feed conductor connections
• Verify PV voltage range including hot module temperature MPP voltage and cold module
temperature, open circuit voltage (OCV)
• Contact installer or Solectria Renewables if malfunction persists
• If contacting Solectria Renewables for assistance, please provide part number, serial
number, short description of problem (LED indicator status, when problem started, how
often problem occurs, under what conditions the problem occurs) and information on PV
modules (string layout, number of modules per string, number of strings, module model
and part number, output power, short-circuit current and open circuit voltage)
Some specific problems that can be identified quickly
GFDI Problem: If the LED indicators show a ground fault problem but the GFDI fuse is not
blown then a ground fault in PV array or wiring must be found. If the LED indicators show that
the GFDI fuse is blown, the fault in PV array or wiring must be found and GFDI fuse replaced.
For fuse replacement, see section 4 “Power, GFDI and Error LED Indicators ”.
Inverter over heating and power derating. If the power output is lower than normal and there is
an LED indication of power derating due to high temperature, check the following
• Is the ambient air temp above 45oC?
• Is the intake (front) louver grill or output (bottom) visibly blocked?
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PVI13KW Installation and Operation Manual
Unit over heating, power derating, or unit not putting out power
• Check insect screens in front louver grill on main enclosure door for clogging from dust,
pollen and debris. The louver/grill can be removed with 8 Philips screws holding it on
and insect screen can be cleaned or replaced (Solectria Renewables P/N HDW-150005-
001)
• Fan not running, blocked or slow
o Check fan fuse inside main enclosure (1A) AC
o Check fan relay inside main enclosure
o Check the fan, make sure it spins freely (when unit turned off)
• No grid sensing
o Grid sensing fuses blown (0.1A) AC inside main enclosure. Contact Solectria
Renewables (Do not replace fuses, as this represents an abnormal failure).
• No LED indications when sun is shining. If grid voltage and DC (PV) voltage is present
and no response from inverter is evident
o Verify AC & DC (PV) voltages are within proper ranges
o Verify fuses in AC & DC (PV) disconnect (If equipped with PV Combiner) are
good
If at some point it is determined that the unit or any part of the unit should be shipped to
Solectria Renewables for repair or replacement, be sure to get an RMA# from Solectria
Renewables and use the same packing method as when it was shipped to you, or request
instruction on packing and/or packing materials from Solectria Renewables to help insure a safe
shipment.
Opening the Main Enclosure
Normally the main enclosure (or disconnects) will not have to be opened for any reason by the
user. If opening the unit is necessary follow these guidelines:
WARNING: The inverter should only be opened by qualified service technician.
WARNING: Only open the inverter when clear and dry outside if the inverter is
outdoors.
WARNING: Both DC and AC disconnects must be in the off position and wait 60
seconds after the LED indicators are off before opening as electrolytic capacitors on
the internal DC “bus” are discharging during this time.
• Switch off DC disconnect
• Switch off AC disconnect (and AC building panel circuit breaker if desired)
• Watch until all LED indicators have been off for 60 seconds (if not already off)
• Use a large flat screwdriver or coin to turn latches ¼ turn counter-clockwise
See Fig. 9 and “Inside the Main Enclosure You Will See” section.
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3 phase, fused
Automatic
DMGI245
LED indicators
DC disconnect
with or without
Night
-
time
NEMA 3 inverter
Filters
Air exhaust
Premium
MOV surge suppressors
AC voltage
AC disconnect
“off -lining”
contactor
enclosure with door
(open)
Fig. 9 Description and location of components
cooling fan
out bottom
(behind fan)
(NEMA 4)
Mounting feet
& GFDI circuit
PV connection
Fused PV
Combiner
GFDI Fuse 3A
sense fuses 0.1A
Fan fuse 1A
Fan relay
efficiency
transformer
(behind terminal block)
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Inside the Main Enclosure you will see:
• DMGI245 Controller and power electronics inverter module with fan
• Isolation transformer
• Filters
o 3 Round Torroids
o 1 Rectangular Filter (behind)
• Night-time 3-phase off-lining contactor
• Fuse blocks
o GFDI 3A DC fuse
o Grid Sense Phase A 0.1A AC Fuse
o Grid Sense Phase B 0.1A AC Fuse
o Grid Sense Phase C 0.1A AC Fuse
o Fan 1A AC Fuse
• Fan Control Relay
• GFDI/LED Indicator PCB
Before closing the main enclosure always check for any signs of prob lems such as corrosion, loose
parts, insect or animal infestation, excessive dirt/dust or over heated or deformed/aged-looking
parts. Also be sure if any wires were moved or cable ties cut, that they are replaced as new.
6 Product Warranty & RMA Policy
6.1 Warranty Policy
The Solectria Renewables Warranty Policy is stated below.
Solectria Renewables Warranty Coverage:
Solectria Renewables Limited Warranties are provided by Solectria Renewables, LLC. ("Solectria
Renewables") and cover defects in workmanship and materials.
Duration of a Solectria Renewables Warranty Period:
The warranty period is 60 months from the date of purchase of the PVI1800, PVI2500, PVI13kW
or PVI60KW, PVI77KW and PVI90KW by the end user or 64 months after the delivery date from
Solectria Renewables to installer, dealer, distributor (merchant) whichever is shorter. If a
warranty extension has been purchased, the term is defined as extension beyond 60 months. For
example, if a 5-year extension (to 10 years total) is purchased, t he term becomes 120 months from
date of purchase.
If Solectria Renewables repairs or replaces a product, its warranty continues for the remaining
portion of the original Warranty Period or 90 days from the date of the return shipment to the
customer, whichever is greater.
Please contact Solectria Renewables Customer Service for further details on other products.
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PVI13KW Installation and Operation Manual
What will Solectria Renewables do?
Solectria Renewables will, at its option, repair or replace the defective product free of charge,
provided that you notify Solectria Renewables of the product defect within the Warranty Period for
your product, and provided that Solectria Renewables, through inspection, establishes the
existence of such a defect and that it is covered by the Limited Warranty.
Solectria Renewables will, at its option, use new and/or reconditioned parts in performing warranty
repair and building replacement products. Solectria Renewables reserves the right to use parts or
products of original or improved design in the repair or replacement. All replaced products and all
parts removed from repaired products become the property of Solectria Renewables.
Solectria Renewables will attempt to repair the unit within a reasonable time period (there is no
reimbursement for lost energy prod uction.)
Solectria Renewables covers both parts and labor necessary to repair the product, and return
shipment to the customer via a Solectria Renewables-selected non-expedited surface freight within
the contiguous United States and Canada. Alaska and Hawaii are excluded. Contact Solectria
Renewables customer service for details on freight policy for return shipments outside of the
contiguous United States and Canada.
In the event an extended warranty option has been purchased, this extended warranty only applies
to exposed outdoor locations (defined as rooftop or open/unprotected locations) if the product has
been purchased to include the gasket-sealed AC and DC disconnect option or has a protective
cover around 3 sides of inverter unit (back and sides) a nd over the top, 4”-60” away from back and
top and 30”-96” from sides.
Obtaining Service:
If your product requires troubleshooting or warranty service, contact your merchant. If you are
unable to contact your merchant, or the merchant is unable to provide service, contact Solectria
Renewables directly at the number listed on the website in the customer service section for your
product.
Direct returns may be performed according to the Solectria Renewables Return Material
Authorization Policy.
In any wa rranty claim, dated proof of purchase must accompany the product and the product must
not have been disassembled or modified without prior written authorization by Solectria
Renewables.
Proof of purchase may be in any one of the following forms:
- The dated purchase receipt from the original purchase of the product at point of sale to the end
user, or
- The dated merchant invoice or purchase receipt showing original equipment manufacturer
(OEM) status, or
- The dated invoice or purchase receipt showing the product exchanged under warranty.
What does the Solectria Renewables warranty not cover?
Solectria Renewables Limited Warranties do not cover normal wear and tear of the product or
costs related to the removal, installation, or troubleshooting of the customer's electrical systems.
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PVI13KW Installation and Operation Manual
These warranties do not apply to and Solectria Renewables will not be responsible for any defect
in or damage to:
a) The product if it has been misused, neglected, improperly installed, physically damaged or
altered, either internally or externally, or damaged from improper use or use in an unsuitable
environment;
b) The product if it has been subjected to fire, water, generalized corrosion, biological infestations,
acts of God or input voltage that creates operating conditions beyond the maximum or minimum
limits listed in the Solectria Renewables product specifications including high input voltage from
generators and lightning strikes;
c) The product if repairs have been done to it other than by Solectria Renewables;
d) The product if it is used as a component part of a product expressly warranted by another
manufacturer;
e) The product if its original identification (trade mark, serial number) markings have been
defaced, altered, or removed;
f) The product if it has been damage d in shipping
g) Any installation and operation beyond the scope covered by relevant safety regulations
(UL1741, NEC, etc.);
DISCLAIMER
SOLECTRIA RENEWABLES LIMITED WARRANTIES ARE THE SOLE AND
EXCLUSIVE WARRANTY PROVIDED BY SOLECTRIA RENEWABLES IN
CONNECTION WITH YOUR SOLECTRIA RENEWABLES PRODUCT AND ARE,
WHERE PERMITTED BY LAW, IN LIEU OF ALL OTHER WARRANTIES,
CONDITIONS, GUARANTEES, REPRESENTATIONS, OBLIGATIONS AND
LIABILITIES, EXPRESS OR IMPLIED, STATUTORY OR OTHERWISE IN
CONNECTION WITH THE PRODUCT, HOWEVER ARISING (WHETHER BY
CONTRACT, TORT, NEGLIGENCE, PRINCIPLES OF MANUFACTURER'S
LIABILITY, OPERATION OF LAW, CONDUCT, STATEMENT OR OTHERWISE),
INCLUDING WITHOUT RESTRICTION ANY IMPLIED WARRANTY OR CONDITION
OF QUALITY, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE TO THE EXTENT REQUIRED UNDER APPLICABLE LAW
TO APPLY TO THE PRODUCT SHALL BE LIMITED IN DURATION TO THE PERIOD
STIPULATED UNDER THIS LIMITED WARRANTY.
IN NO EVENT WILL SOLECTRIA RENEWABLES, LLC, INCLUDING ITS SUPPLIERS,
MANUFACTURERS, VENDORS, SUBCONTRACTORS, DISTRIBUTORS, DEALERS
AND ANY OTHER AFFILIATES BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES, LOSSES, COSTS OR
EXPENSES HOWEVER ARISING WHETHER IN CONTRACT OR TORT INCLUDING
WITHOUT RESTRICTION ANY ECONOMIC LOSSES OF ANY KIND, ANY LOSS OR
DAMAGE TO PROPERTY, ANY PERSONAL INJURY, ANY DAMAGE OR INJURY
ARISING FROM OR AS A RESULT OF ANY USE, MISUSE OR ABUSE, OR THE (IN -)
CORRECT INSTALLATION, INTEGRATION OR OPERATION OF THE PRODUCT.
Solectria Renewables neither assumes nor authorizes any other person to assume for it any other
liability in connection with the repair or replacement or the Product.
DOC-020028 rev 006 27
PVI13KW Installation and Operation Manual Exclusions of the Policy:
If your product is a consumer product, federal law does not allow an exclusion of implied
warranties. To the extent you are entitled to implied warranties under federal law, to the extent
permitted by applicable law they are limited to the duration of this Lim ited Warranty. Some states
and provinces do not allow limitations or exclusions on implied warranties or on the duration of an
implied warranty or on the limitation or exclusion of incidental or consequential damages, so the
above limitation(s) or exclusion(s) may not apply to you. This Limited Warranty gives you specific
legal rights. You may have other rights, which may vary from state to state or province to
province.
WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, UNLESS
SPECIFICALLY AGREED TO BY IT IN WRITING, SOLECTRIA RENEWABLES
(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR
SUITABILITY OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN
MANUALS OR OTHER DOCUMENTATION PROVIDED BY IT IN CONNECTION
WITH THE PRODUCT; AND
(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES,
COSTS OR EXPENSES, WHETHER SPECIAL, DIRECT, INDIRECT,
CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF
SUCH INFORMATION.
THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER'S
RISK.
WARNING: LIMITATIONS ON USE
Please refer to your product user manual for limitations on uses of the product. Specifically, please
note that Solectria Renewables products are not intended for use in connection with life support
systems and Solectria Renewables makes no warranty or representation in connection with any use
of the product for such purposes.
Please review our Return Merchandise Authorization Policy for returning product to Solectria
Renewables.
Obtaining a required, Return Material Authorization:
Before returning a product directly to Solectria Renewables you must obtain a Return Material
Authorization (RMA) number and the correct factory "Ship To" address. Products must also be
shipped prepaid. Product shipments will be refused and returned at your expense if they are
unauthorized, returned without an RMA number clearly marked on the outside of the shipping box,
if they are shipped collect, or if they are shipped to the
wrong location.
DOC-020028 rev 006 28
PVI13KW Installation and Operation Manual Information Solectria Renewables needs when you are obtaining service:
1) The model names and serial number of your product
2) Information about the installation and use of the unit
3) Information about the failure and/or reason for the return
4) A copy of your dated proof of purchase.
Preparing the product for shipping:
1) Package the unit safely, preferably using the original box and packing materials. Please ensure
that your product is shipped fully insured in the original packaging or equivalent. This warranty
will not apply where the product is damaged due to improper packaging.
2) Include the following:
a. The RMA number supplied by Solectria Renewables, LLC clearly marked on the outside of the
box
b. A return address to which the unit can be shipped. Post office boxes are not acceptable.
c. A contact telephone number where you can be reached during work hours.
d. A brief description of the problem.
Ship the unit prepaid to the address provided by your Solectria Renewables customer service
representative.
Returning a product from outside of the USA or Canada:
In addition to the above, you MUST include return freight funds and are fully responsible for all
documents, duties, tariffs, and deposits.
7 Technical Data
Technical Information and specifications – see appendix for complete
PVI13KW data sheet
Input (DC) from PV array:
• Maximum open circuit voltage of PV array: 450V DC
WARNING: NEC 690-7 must be followed to calculate the maximum number of PV
modules allowed for a maximum inverter open circuit voltage (OCV) of 450V DC in
extreme cold temperatures for the installation location.
• See PV string sizing charts in Appendix B
The open circuit voltage of PV modules depends on the cell temperature and the solar
irradiation. The highest open circuit voltage occurs when the PV modules are at the
coldest temperature and in bright sun. (See the following figure – Fig. 10)
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PVI13KW Installation and Operation Manual
8
6
4
2
DC Current (A)
0
at 50 deg C
at 20 deg C
at -20 deg C
0102030
Voltage (VDC)
Fig. 10 Example representative PV module voltage –
current characteristic at various cell temperatures
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PVI13KW Installation and Operation Manual
Because the PV modules also have a reduction in voltage at high cell temperatures, you must make
sure the MPP volta ge of the strings will not drop below the minimum inverter DC input voltage of
225V DC in very hot temperature conditions.
Both the maximum open circuit voltage (OCV) when at cold extreme and minimum MPP voltage
when at hot extreme can be calculated for a PV module using its specification sheet. PV module
string sizing can then be used to determine how many modules can/should be used in a string.
Input DC (PV) specifications for PVI13KW inverter
Input voltage MPP range 225V-385V DC
Maximum open circuit voltage 450V DC
(under all conditions)
Maximum input current 60A DC
Maximum input power 14 kW DC
(inverter limited)
Maximum recommended 15-16 kW DC
PV power (modules @ STC)
DC disconnect for PV positive (+) included
Ground fault detect ion, must detect 5A
Ground fault interrupt 5A
Output to AC grid connection:
The PVI13KW is designed to feed power into a standard 60Hz, 3-phase 208V AC utility service or
208V AC provided within a facility by a step down transformer of not less tha n 15kVA. As
required by NEC, there must be a dedicated 3-phase circuit breaker for the PV inverter connection.
This circuit breaker (and wiring) must have a rating of at least 45A (50A recommended) for the
208VAC version. A 30A circuit breaker and 8AWG wiring is recommended for the 480VAC
version.
The inverter is designed to work with the range of AC voltage for a 208VAC 3-phase service
defined by UL1741 of 190V to 228V. The 480VAC output version of the inverter has an AC
voltage range of 438V to 528V. (A 30A service and breaker is required, however 8AWG wire is
recommended.)
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Output (AC) specifications for PVI13KW Inverter:
Nominal and Maximum output power 13.2 kW AC 13.2 kW AC
Operating voltage range 208V +10%/- 12% 480 +10%/-12%
Operating frequency range 59.3 to 60.5 Hz 59.3 to 60.5 Hz
Maximum Output Current 37 A 16 A
Peak short circuit output current 75 A 75 A
Total Harmonic distortion (THD) < 5% < 5%
(@ full power)
Power Factor > 95% > 95%
Anti-islanding protection per UL1741 per UL1741
Ground fault protection 2005 NEC 690.5 2005 NEC 690.5
AC disconnect, 3-phase included included
Over current protection inverter limited inverter limited
Short circuit protection per UL1741 per UL1741
Surge test per UL1741 per UL1741
Inverter peak Efficiency* 94% (50%-100% load) 94% (50%-100% load)
Other specifications:
DC combiner-fuse enclosure 10A/15A fuses available
(Optional) 7-pole, NEMA 3R, TVSS
DC Disconnect (Integral) Break load rated, NEMA 3R
Ambient Temperature -20o to 45o C
Storage Temperature -40o to 70o C
Cooling Forced Convection
Enclosure NEMA 3R
Enclosure-electronics NEMA 4, IP-65
*Does not include MPP tracking and other transitory phenomena.
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PVI13KW Installation and Operation Manual
15
10
“strike” vo ltage
5
AC Power (kW)
0
200250300350400450
DC (PV) Voltage (VDC)
Fig. 11 Output power of PVI13KW
70
60
50
40
30
20
DC Amperes (ADC)
10
0
200250300350400450
DC (PV) Input Voltage (VDC)
Fig. 12 Maximum continuous DC current input for PVI13KW
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PVI13KW Installation and Operation Manual
Overall Efficiency DC (PV)
100
90
80
70
60
to AC (3-phase) %
50
0.005.0010.0015.00
AC Power (kW AC)
Fig. 13 PVI13KW peak efficiency plot at 320VDC input and 25C a mbient temperature.
(peak efficiency values were measured with a 3% accurate power meter setup and
do not include any losses caused by long wires and transitory
PV Module String Sizing for use with Solectria Renewables PVI13KW PV
inverter.
Note that these are suggested configurations only. Verify all the actual site temperature extremes and conditions will yield voltages and
power levels within the specifications of the inverter and other components used in the system. For the examples shown with lower
numbers of modules in series, verify the hot module operating voltage if the system is to be installed in a hot climate to make sure
that the MPT voltage is always above 225VDC (including margin for wire losses, etc.) on the hottest days. It is good to plan for 235VDC.
Module Manufacturer Evergreen
Module Model EC -115 12V version
Voltage @ MPT 16.5 VDC
Current @ MPT 6.97 ADC
Current, short circuit 7.71 ADC
OCV @ 25 deg C cells 20 VDC
OCV @ extreme cold 25 VDC
Power @ MPT 115 W
Modules total in array 80
Modules per string 16
Strings in Parallel 5
Voltage @ MPT 264
OCV @ 25 deg C cells 320
OCV @ extreme cold 400
Power @ MPT (STC) 9200
Inverter Used PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW
859096
171816
556
280.5297264 280.5
340360320
425450400
97751035011040 11730 12420 12880 13685 14490
Module Manufacturer RWE Schott/ASE Americas
Module Model ASE-300-DGF/50 315W, 36V module
Voltage @ MPT 52 VDC
Current @ MPT 6.05 ADC
Current, short circuit 6.6 ADC
OCV @ 25 deg C cells 60 VDC
OCV @ extreme cold 75 VDC
Power @ MPT 315 W
Modules total in array 25303036
Modules per string 5656
Strings in Parallel 5566
Voltage @ MPT 260312260312
OCV @ 25 deg C cells 300360300360
OCV @ extreme cold 375450375450
Power @ MPT (STC) 78759450945011340 11025 13230 12600 15120
Inverter Used PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW
102
340
425
260
300
375
108
297
360
450
312
360
450
112
264 280.5
320
400
260
300
375
119
340
425
8
312
360
450
126
297
360
450
*
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PVI13KW Installation and Operation Manual
80 88 96
8 8 8
10 11 12
80 88 96
8 8 8
10 11 12
Module Manufacturer Shell Solar
Module Model SQ160-PC 24V module
Voltage @ MPT 35 VDC
Current @ MPT 4.58 ADC
Current, short circuit 4.9 ADC
OCV @ 25 deg C cells 43.5 VDC
OCV @ extreme cold 52.2 VDC
Power @ MPT 160 W
Modules total in array 48566472
Modules per string 8888
Strings in Parallel 67
Voltage @ MPT 280280280280
OCV @ 25 deg C cells 348348348348
OCV @ extreme cold 417.6417.6417.6417.6 417.6 417.6 417.6
Power @ MPT (STC) 768089601024011520 12800 14080 15360
Inverter Used PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW
89
280
348
280
348
*
280
348
Module Manufacturer BP Solar
Module Model BP 3160 24V module
Voltage @ MPT 35.1 VDC
Current @ MPT 4.55 ADC
Current, short circuit 4.8 ADC
OCV @ 25 deg C cells 44.2 VDC
OCV @ extreme cold 53.04 VDC
Power @ MPT 160 W
Modules total in array 48566472
Modules per string 8888
Strings in Parallel 67
Voltage @ MPT 280.8280.8280.8280.8 280.8 280.8 280.8
OCV @ 25 deg C cells 353.6353.6353.6353.6 353.6 353.6 353.6
OCV @ extreme cold 424.32424.32424.32424.32 424.32 424.32 424.32
Power @ MPT 768089601024011520 12800 14080 15360
Inverter Used PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW
89
*
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PVI13KW Installation and Operation Manual
80 88
8 8
10 11
52 65 78 91
13 13 13 13
4 5 6 7
Module Manufacturer Sharp
Module Model NE -165U1 24V module
Voltage @ MPT 34.6 VDC
Current @ MPT 4.77 ADC
Current, short circuit 5.46 ADC
OCV @ 25 deg C cells 43.1 VDC
OCV @ extreme cold 51.72 VDC
Power @ MPT 165 W
Modules total in array 48566472
Modules per string 8888
Strings in Parallel 67
Voltage @ MPT 276.8276.8276.8276.8 276.8 276.8
OCV @ 25 deg C cells 344.8344.8344.8344.8 344.8 344.8
OCV @ extreme cold 413.76413.76413.76413.76 413.76 413.76
Power @ MPT (STC) 792092401056011880 13200 14520
Inverter Used PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW
89
*
Module Manufacturer Kyocera
Module Model KC167G
Voltage @ MPT 23.2 VDC
Current @ MPT 7.2 ADC
Current, short circuit 8 ADC
OCV @ 25 deg C cells 28.9 VDC
OCV @ extreme cold 34.68 VDC
Power @ MPT 167 W
Modules total in array 48607284
Modules per string 12121212
Strings in Parallel 4567
Voltage @ MPT 278.4278.4278.4278.4 301.6 301.6 301.6 301.6
OCV @ 25 deg C cells 346.8346.8346.8346.8 375.7 375.7 375.7 375.7
OCV @ extreme cold 416.16416.16416.16416.16
Power @ MPT 8016100201202414028
Inverter Used PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW PVI13KW
450.84 450.84 450.84 450.84
8684 10855 13026 15197
**
* for 8, 9, 10, 11 and 12 (parallel) string con nections, or an external fused PV combiner should be used.
** 450 VDC is the maximum allowed open circuit voltage that can be applied to the inverter, so this configuration should
be used only in regions that do not reach this high a voltage at the lowest extreme temperature which occurs.
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SolSource Energy
jeffc@villagepower.com
Appendix C - Contact Information
Solectria Renewables LLC
360 Merrimack Street
Building 9, Floor 2
Lawrence, Massachusetts, USA