Installation Manual
PVI 13KW / PVI 15KW
Installation and Operation Manual
PVI 13KW
PVI 15KW
INSTALLATION AND OPERATION MANUAL
Commercial, Grid-Tied Photovoltaic Inverter
© 2008, Solectria Renewables LLC
Subject to Change
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PVI 13KW / PVI 15KW
Installation and Operation Manual
IMPORTANT SAFETY INSTRUCTIONS
This manual contains important instructions that shall be followed during installation and
maintenance of the PVI 13KW / PVI 15KW 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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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 PVI 13KW / PVI 15KW contains no user serviceable parts. Please contact Solectria
Renewables or a Solectria Renewables authorized system installer for maintenance. (See
page 37 for Solectria Renewables contact information and authorized system installers.)
•
Before installing or using the PVI 13KW / PVI 15KW, please read all instructions and
caution markings in this manual and on the PVI 13KW / PVI 15KW unit as well as the PV
modules.
•
Connection of the PVI 13KW / PVI 15KW 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.
SAVE THESE INSTRUCTIONS
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Table of Contents
1
2
3
4
5
6
7
8
Introduction………………………………………………………………..………… 5
Installation…………………………………………………………………..……….. 6
2.1
Checking for Shipping Damage…………………………………...………. 6
2.2
Inverter Mounting.……………………………………………..………….. 6
2.3
Electrical Connection and Connection to Electrical Utility Grid and
Surge/Lightning Protection. …………………………………………….... 11
Commissioning the Inverter PV System …………………………………………….. 18
Power, GFDI and Error LED Indicators …..…………………………………..….…. 19
Troubleshooting & Opening the Main Enclosure………….………………...………. 23
Warranty Information and Liability………………………………..………………… 26
Technical Data…………………………………………………..…………….……… 31
Appendices…………………………………………………………………...……… 36
Appendix A: Product Datasheet……………………………………………...……… 36
Appendix B: Example String Sizing………………………………………...……….. 36
Appendix C: Contact Info and Authorized Distributors, Dealers and Installers……... 36
Appendix D: UL 1741 Listing Letter…………………………………….……………37
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1 Introduction
The PVI 13KW / PVI 15KW is a commercial, 3-phase grid-tied PV inverter designed to be interconnected to the electric utility grid. With this manual the PVI 13KW / PVI 15KW can be
installed and operated safely. This installation guide is used as reference for the commissioning
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, and a 240VAC version as special order.)
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 /
PVI 15KW
Inverter
Fig. 1 Grid tied inverter application
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Electrical
Grid
PVI 13KW / PVI 15KW
Installation and Operation Manual
2 Installation
WARNING: Before installing the PVI 13KW / PVI 15KW, read all instructions and
caution markings in this manual and on the PVI 13KW / PVI 15KW 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 PVI 13KW / PVI 15KW to the electric utility grid must
only be done after receiving prior approval from the utility company and installation
completed only by qualified personnel/licensed electrician(s).
2.1 Checking for Shipping Damage
The PVI 13KW / PVI 15KW 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 damage 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
PVI 13KW / PVI 15KW 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 disconnects
mounted on the sides of the main enclosure. On the standard versions, the disconnects are side
facing. An option is available with forward-facing disconnects for tight spaces where width is
limited (see fig 2.2b).
NOTE: If the PVI 13KW / PVI 15KW is mounted outside, make sure the enclosure
door remains closed in case of rain during the installation process. Since the AC and
DC connections are done 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 shortest 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 highfrequency 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 & 2.2c)
•
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 50oC 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 –25oC and +50 oC for full power, continuous
operation. (The inverter will automatically reduce power or shut down to protect itself if
ambient air temperature rises above 50 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 this 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 45-50 oC. The ambient temperature should be kept as low as possible.
•
Correct mounting positions for the inverter: (side views)
Fig. 2.1 How to mount the inverter
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Fig. 2.2a PVI 13KW / PVI 15KW Mounting Diagram (standard side-facing disconnects)
Fig. 2.2b PVI 13KW / PVI 15KW with forward-facing disconnect option
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Fig. 2.2c PVI 13KW / PVI 15KW Mounting Diagram (standard side-facing disconnects)
Mounting Details
Using the mounting diagram Fig. 2.2 (a & c), choose whether floor/roof, wall or stand mounting
will be used. A forward facing disconnect configuration is available as an option. This is
especially useful in locations where limited space if available side-to-side to allow NEC
clearance for the standard side facing disconnects. 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 configuration. (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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Wall Mounts
LED indicators and
GFDI warning label
Fused AC
Disconnect
Main enclosure
with integrated
inverter,
transformer
filters and
contactor
DC
disconnect
with fused
PV combiner
(if equipped)
Warning
Label
Cooling Air
In take
Foot Mounts
Nameplate, specs.
and ETL,
UL1741/IEEE1547
Certification label
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, Photovoltaic 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. (Note that these instructions are reversed for optional positive grounded
versions of the inverter.)
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 the 3-phase AC wiring, use 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 minimum for the 480VAC version.) (Disconnect
terminals listed for 75oC wire. See NEC 310.10 regarding temperature ratings of
wire.) 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)
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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
installations) for each positive lead of each PV string. (Fuse block terminals are
listed for 75oC wire. See NEC 310.10 regarding temperature ratings of wire.)
Connect to each fuse and torque screws to 12 in–1b (1.3Nm). This fuse and wire
rating must be compatible with PV module fuse and short-circuit current rating per
NEC 690. (A maximum of 8 AWG copper conductors 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 10-4 AWG DC equipment grounds meet NEC
requirements for the installation, these can be terminated on the ground bar. (Note
that the instructions for plus and minus are reversed for inverters with the positive
grounding option)
If the inverter is not equipped with an integrated fused PV combiner, a minimum
conductor size of 6 AWG, 90oC (194oF) copper wire must be used. (A maximum of 2
AWG copper conductor 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 2/0 AWG.) Torque screws to 120 in-lb. If the PV
conductors are upsized, it may be necessary to upsize the DC equipment ground
conductor or the grounding electrode conductor (see Grounding Electrode Conductor
Section below).
Lightning and Surge Protection:
The inverter is designed with certain protections against surges in voltage including
certification to UL 1741/IEEE 1547, ANSI/IEEE 62.41/62.42, however added
protection and solid grounding provisions are important for best protection against
utility surges and surges created by indirect lightning strikes.
The installation of a Delta lightning surge arrester or other UL listed arrester of the
correct specification is recommended on both the DC and AC sides of inverter. 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 and other requirements. It is suggested to drive a ground rod specifically for
the PV array. It is also a very good idea to have the lightning protection system of the
building checked and upgraded if needed before the PV system is installed. (Are
there air conductors along the roof-line of the building well above the PV array? Do
you see a copper ground wire running from the air conductors to a ground rod?)
These added protections are especially important for area prone to thunder storms and
possible nearby lightning strikes. Although these added precautions cannot guarantee
that there will be no damage from lightning, they can help prevent or limit potential
damage.
Grounding Electrode Conductor:
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 AC
disconnect. If required, an additional lug of the appropriate size for the grounding
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electrode conductor can be added in the AC disconnect and bonded to the existing
ground bar in the disconnect in a code compliant manner.
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. The connection of the grid to the
inverter must follow clockwise phase rotation for: L1/A, L2/B and L3/C. Test with a
phase rotation tester or a scope-meter. (Extech, Fieldpiece, Fluke and UEi make
phase rotation meters.) Do not assume existing color code or building wiring is
correct! You must verify clockwise rotation with a meter. NOTE: It may be
necessary to swap the phase A&B wires connecting the building circuit to the
inverter’s disconnect if building phasing or wiring anywhere between utility and the
inverter is not in proper phase sequence. Incorrect phase sequence at the 3-phase AC
connection in the AC disconnect can damage the inverter. Turn on the inverter by
switching building/utility 3-phase breakers ON then turning on inverter’s AC
disconnect, then DC 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.
Connection to dedicated 208V AC,
50A 3-phase circuit. (60A for
15kW) 6-2 AWG copper wire.
Torque to 45-50 in-lb. (Shown
without plastic safety cover). If
480V AC versions, circuit should be
30-40A w/min. 8-10AWG wire.
50A Fuses (for PVI 13KW-208V and
240VAC versions), 600V, 50A FRS-R50 Solectria Renewables P/N FRS-R50. 60A Fuses for 15kW-208VAC
version. (If 480V AC versions, use
40A fuses, FRS-R-40, Solectria
Renewables P/N FRS-R-40.)
AC Equipment Ground connection
8-4 AWG copper wire
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PV ground/frame
connections 10-4
AWG copper wire
(a larger lug can be
added if required)
PV negative (-), up
to 7 connections
12-8 AWG copper
wire torque to 35
PV positive (+) up to 7
connections (12 in-lb) 12-8
AWG copper wire only
Fig. 6 DC disconnect with Fused PV Combiner
(open showing connection)
Example
customer/installer
knockout, connector &
wires. (7 PV (+), PV (-)
feed, & ground). It is
best to run individual
PV(-) feeds for each PV
string to avoid
combining negatives at
the array.
PV negative (-)
connections 4-2
AWG copper wire
torque to 120 in-lb.
PV positive (+)
connections 4-2
AWG copper wire
torque to 120 in-lb.
PV ground/frame
connections 10-4
AWG copper wire
(a larger lug can be
added if required)
Customer/installer
wires are not shown.
Fig. 7. DC disconnect without Fused PV
Combiner (open showing connection)
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WARNING: Fuses in the inverter’s AC disconnect must only be replaced with
Solectria Renewables Part Number FRS-R-50, or 50A, 600V, Bussmann, FRS-R-50
fuse. (Same for 240VAC version or 40A fuse of the same type for 480V AC version,
Solectria Renewables Part Number FRS-R-50)
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, Bussmann,
KLM-10. Always refer to PV module fuse ratings and specification before selecting
or replacing fuses.
Connection Wiring To Electrical Utility Grid
The PVI 13KW / PVI 15KW 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 PVI 13KW-208VAC (or 240VAC) version. A 60A breaker should be used
for the PVI 15KW-208VAC. (A 30-40A circuit breaker is recommended for the 480VAC
versions.)
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 0.14 Ω for a 250 feet (76.2 m) 8 AWG conductors
•
Approximately 0.09 Ω for a 250 feet (76.2 m) 6 AWG conductors
•
Approximately 0.05 Ω for a 250 feet (76.2 m) 4 AWG conductors
•
Conductor impedance of < 0.09 Ω is recommended.
The total impedance phase to phase of the grid plus the interconnecting AC conductors should be
less than 0.18 Ω. Lower resistance, heavier wires will allow more energy production from the PV
system and will help prevent inverter trips required by UL1741 if line voltages are high or low.
This is because with larger wires, the AC voltages at the inverter will be closest to the voltages at
the building’s circuit panel.
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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 PVarrays 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 475V DC (Vpv < 475 V DC) under
all conditions as per NEC 690-7. Please read the Technical Info section and see PV
string sizing table in Appendix B. All string sizing is approved by Solectria
Renewables for your benefit upon order of inverter(s)
Inverter with fused PV combiner in DC disconnect enclosure:
There are 6-7 fuse blocks for up to 6-7 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. (Note that these instructions are reversed for inverters equipped with the positive
grounding option.)
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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Inverters connected in conjunction with emergency back-up generators:
Please follow all applicable NEC and local codes.
The inverters meet and are certified to all UL1741 and IEEE1547 requirements.
There are two methods to connect inverter or inverters to a grid-connected building that includes
an emergency generator: (note that these are only thoughts on this subject – consult your inspector)
1.) Inverter(s) on the grid-side of the transfer switch that disconnect the building when the utility
goes off. With this method, when the grid goes off, the inverters go off, the transfer switch
disconnects the building from the PV inverters and grid. Then the generator starts and runs for the
duration of power outage. In this case, the inverter is on the grid-side of the transfer switch and the
inverters remain off the entire time until the grid returns.
2.) Inverter(s) on the load/building side of the transfer switch that disconnect the building when the
utility goes off. With this method when the grid goes off, the inverters go off, the transfer switch
disconnects the building with inverter(s) from the grid and the generator starts, the inverter(s) will
attempt to start in parallel with the building/load/generator. With a large size generator and load,
the inverter will most likely come back on and run well. If at any time the voltage or frequency of
the system goes outside of the limits set in UL1741, then the inverter will go off and re-start 5
minutes later. This trial and restart sequence should not cause any trouble for the building,
generator or inverter, however, if the PV system has close to or more than the power level of the
generator and/or loads at any time, it is not recommended to use this hook up configuration (with
the inverter on the building/load side of the transfer switch)
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 voltage and 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. Also, verify clockwise
phase rotation (L1-L2-L3) in the AC disconnect, using a phase rotation meter.
Turning on the inverter:
•
•
Turn on the dedicated 3-phase circuit breaker on the building electrical panel
Verify the proper CLOCKWISE phase sequence at the “line” side terminals of the AC
disconnect
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•
Turn on the PVI 13KW / PVI 15KW inverter’s 3-phase AC disconnect
•
If equipped with Fat Spaniel Inverter-Direct monitoring option, refer to Fat Spaniel
PV2Web Installation Manual for gateway startup sequence before turning on inverter’s DC
disconnect.
•
Turn on the PVI 13KW / PVI 15KW inverter’s DC disconnect
•
Watch the LED indicators for initialization (all three LEDs on), then slow-blinking green.
•
Listen for contactor clunk (inverter on-line) and fast blinking green LED
•
Listen for slight 60 Hz hum (transformer on-line)
•
Following the fast-blinking green LED and high frequency switching sound (inverter online and beginning to feed power into 3-phase circuit), the green LED should become solid
indicating that the inverter is operating normally.
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
270V DC (strike voltage). Next, the inverter will load the array, bringing the DC voltage down
from 270V DC to not less than 225V DC.
Once the array open circuit voltage exceeds 270VAC and 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 PVI 13KW / PVI 15KW 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.
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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 0.75A midget fuse 500V DC or 600V DC rated
such as Solectria Renewables P/N KLK ¾ or KLKD 3/4, or Bussmann, KLK-3/4 or KLKD-3/4.
Fig. 8. The view from right-hand side of inverter above DC (PV) disconnect (LED indicator
during initialization, all LEDs on)
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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PVI 13KW / PVI 15KW
LED indicator
green:
Installation and Operation Manual
Operating condition
Description
standby (night)
input voltage < 125 VDC
initialization
unit is being initialized
stop
input voltage low < 225V
(270V @ startup)
stop
input voltage high
> 430V
yellow:
red:
green:
yellow:
red:
green:
yellow:
red:
green:
yellow:
red:
green:
(475 VDC is the maximum allowable
PV open circuit voltage)
waiting for
stronger sun
available DC power is too low
waiting,
checking grid
presence of valid grid conditions
Is being checked
starting / synchronizing
-starting transformer
-synchronization to grid
-closing contactor
waiting for
AC disconnect/breaker to be closed
grid voltage
is absent
AC fuse blown
(one phase)
one AC power fuse blown
or one v-sense fuse blown
green:
AC VOLTAGE TOO HIGH
AC Grid Voltage above UL limits
yellow:
(alternating green & red LED)
(>228V if 208VAC, >528V if 480VAC)
feeding grid
MPP or constant voltage mode
normal daytime operation
de-rating mode or inverter at full power
reduction of power fed to the grid
due to increased temperature of the
heatsink or inverter is at full rated power
GFDI fuse failure
GFDI fuse is defective
see chapter 5
red:
green:
failure
yellow:
1 blink: HW failure #1
red:
2 blinks: HW failure #2
internal or external failure, exact
description on blink code (1,2,5)
call Solectria Renewables
yellow:
red:
green:
yellow:
red:
green:
yellow:
red:
green:
yellow:
red:
green:
yellow:
red:
or one grid phase off/blown
red:
green:
yellow:
red:
green:
yellow:
red:
green:
yellow:
5 blinks: HW failure #5
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green:
Installation and Operation Manual
5 minute wait for re-start (alternating
green, yellow, & red LEDs in sequence)
utility required 5 minute wait for restart in
process since grid (AC) restored
yellow:
red:
green:
Wrong AC phase sequence
yellow:
red:
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Switch two phase wires for correct
clockwise sequence
PVI 13KW / PVI 15KW
Installation and Operation Manual
5 Trouble Shooting
The PVI 13KW / PVI 15KW 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, mounted, wired and tested installation, the integrated PVI 13KW /
PVI 15KW 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 functioning 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 voltage & CLOCKWISE phase rotation (with meter)
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 de-rating. If the power output is lower than normal and there is an
LED indication of power de-rating due to high temperature, check the following
• Is the ambient air temp above 45-50oC?
• Is the intake (front) louver grill or output (bottom) visibly blocked?
• Is the unit in direct sunlight which is adding extra heat to the inverter?
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Unit over heating, power de-rating, 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 (0.5A or as labeled) 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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Fig. 9 Description and location of components
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Inside the Main Enclosure you will see:
•
•
•
•
•
•
•
DMGI245 Controller and power electronics inverter module with fan
Isolation transformer
Filters
o Inductor assembly
o Rectangular Filter (silver/gray box behind inductor and contactor)
3-phase off-lining contactor
Fuse blocks
o GFDI, 0.75A DC fuse
o Grid Sense Phase A, 0.5A AC Fuse (or as labeled)
o Grid Sense Phase B, 0.5A AC Fuse (or as labeled)
o Grid Sense Phase C, 0.5A AC Fuse (or as labeled)
o Fan, 1A AC Fuse
Fan Control Relay
GFDI/LED Indicator PCB
Before closing the main enclosure always check for any signs of problems 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.
If equipped with optional Fat Spaniel hardware, Fat Spaniel hardware is not covered under the
Solectria Renewables warranty but is covered by Fat Spaniel's 5-year warranty. Extended
warranties covering Solectria Renewables inverters do not cover Fat Spaniel hardware.
Duration of a Solectria Renewables Warranty Period:
The warranty period is 60 months from the date of purchase of the PVI13KW / PVI15KW by the
end user or 64 months after the delivery date from Solectria Renewables to distributor or
dealer/installer, 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, the 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.
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All warranties are null and void if full payment for products and associated shipping are not
received in full and in a timely manner by Solectria Renewables.
Please contact Solectria Renewables Customer Service for further details on other products.
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 production.)
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 and Rest Of The World 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) and 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 distributor or
dealer/installer. If you are unable to contact your distributor or dealer/installer, or the distributor
or dealer/installer is unable to provide service, contact Solectria Renewables directly at the number
listed on the website in the customer service section for your product.
Solectria Renewables may send personnel to a jobsite or contract with an area technician, installer
or other authorized, trained service personnel to service/replace components.
Reimbursement for contracted services: Solectria Renewables will submit a purchase order to the
designated service personnel before work is performed. This purchase order will cover time
expected for the required service and most likely an allocation for travel time.
Direct returns may be performed according to the Solectria Renewables Return Material
Authorization Policy.
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In any warranty 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 distributor or dealer/installer invoice or purchase receipt showing original equipment
manufacturer (OEM) status, or
- The dated invoice or purchase receipt showing the product exchanged under warranty.
Solectria Renewables provides trouble-shooting service Monday-Friday, 9am-6pm EST. Once a
problem is identified, necessary replacement component(s) will be dispatched within 1-2 days to
the jobsite or the designated service personnel's address or will be brought to the site by Solectria
Renewables’ personnel.
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.
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 or authorized,
trained service personnel;
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 (trademark, serial number) markings have been
defaced, altered, or removed;
f) The product, if it has been damaged in shipping (unless approved in writing by Solectria
Renewables);
g) Any installation and operation beyond the scope covered by relevant safety regulations
(UL1741, NEC, etc.);
h) Fat Spaniel hardware, if option has been purchased, is not covered under the Solectria
Renewables warranty but is covered by Fat Spaniel's 5-year warranty. Extended warranties
covering Solectria Renewables inverters do not cover Fat Spaniel hardware.
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
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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, DISTRIBUTOR OR DEALER/INSTALLER ABILITY OR FITNESS FOR
A PARTICULAR PURPOSE. ANY IMPLIED WARRANTY OF DISTRIBUTOR OR
DEALER/INSTALLER ABILITY 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.
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 Limited 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.
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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.
6.2 Return Material Authorization Policy
Please review our Return Merchandise Authorization Policy below after reviewing our Solectria
Renewables Warranty Policy.
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.
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.
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7 Technical Data
Technical Information and specifications – see appendix for complete
PVI 13KW / PVI 15KW data sheet
Input (DC) from PV array:
•
Maximum open circuit voltage of PV array: 475V 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 475V DC in
extreme cold temperatures for the installation location.
•
See PV string sizing charts in Appendix B
DC Current (A)
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)
8
6
at 50 deg C
4
at 20 deg C
at -20 deg C
2
0
0
10
20
30
Voltage (VDC)
Fig. 10 Example representative PV module voltage versus
current characteristic at various cell temperatures
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Because the PV modules also have a reduction in voltage at high cell temperatures, you must make
sure the MPP voltage 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 PVI 13KW / PVI 15KW inverter
Input voltage MPP range
CEC full power range
225V-385 VDC
235V-380 VDC
Maximum open circuit voltage
(under all conditions)
475 VDC
Maximum input current PVI 13KW
Maximum input current PVI 15KW
60A DC
70A DC
Maximum input power PVI 13KW
Maximum input power PVI 15KW
14 kW DC (inverter limited)
16 kW DC (inverter limited)
PVI 13KW Maximum recommended
PV power (modules @ STC)
systems)
PVI 15KW Maximum recommended
PV power (modules @ STC)
systems)
15 -16 kW DC
(16 -17 kW for 0-5 deg flat roof
DC disconnect for PV positive (+)
included
Ground fault protection
Ground fault detection, must detect
Ground fault interrupt
per UL 1741/2005 NEC 690.5
0.75 A
0.75 A
16 -18 kW DC
(18 - 20 kW for 0-5 deg flat roof
Output to AC grid connection:
The PVI 13KW / PVI 15KW 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 than
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 50A (50A
recommended) for the 13kW, 208VAC (or 240VAC) version or 60A for the 15kW version. A 3040A circuit breaker and 8-10AWG wiring is recommended for both of the 480VAC versions.
The inverter is designed to work with the range of AC voltage for a 208VAC 3-phase service
defined by UL1741 of 183 to 228V. The 240VAC output version of the inverter has an AC
voltage rating of 212 to 264VAC. The 480VAC output version of the inverter has an AC voltage
range of 423 to 528VAC. (A 30-40A service and breaker is required, however 8AWG wire is
recommended and 10AWG minimum wire size.)
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Output (AC) specifications for PVI 13KW / PVI 15KW Inverter:
Nominal and Maximum output power
power of the PVI 13KW
Nominal and Maximum output power
power of the PVI 15KW
Operating voltage range (+10%/- 12%)
13.2 kW AC
15.0 kW AC
208VAC
Operating frequency range
240VAC
480VAC
59.3 to 60.5 Hz
Operating voltage range (VAC)
183 - 228
Over / under voltage trip points and times
211 - 264
423 - 528
per IEEE Std. 1547-2003, Table 1
Voltage measurement accuracy
+/- 2%
Over / under frequency trip points and times
per IEEE Std 1547-2003, Table 2
Frequency measurement accuracy
+/- 0.1 Hz
Maximum Output Current PVI 13KW
Maximum Output Current PVI 15KW
37 A
42 A
32A
37A
Peak short circuit output current
75 A
Total Harmonic distortion (THD)
(@ full power)
< 5%
Power Factor
> 95%
Anti-islanding protection
16 A
18 A
per UL 1741, IEEE 1547
AC disconnect, 3-phase
included
Over current protection
inverter limited
Short circuit protection
per UL1741 / IEEE1547
Surge test
per UL1741 / IEEE1547
Inverter peak Efficiency*
94.8%
*Does not include MPP tracking and other transitory phenomena.
Other specifications:
DC combiner-fuse enclosure
(Optional)
10A/15A fuses available
6-7 pole, NEMA 3R, TVSS
DC Disconnect (Integral)
Break load rated, NEMA 3R
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Ambient Temperature
Installation and Operation Manual
-25 to 50o C
o
Storage Temperature
-25o to 50o C
Cooling
Forced Convection
Enclosure
UL1741 rainproof
Enclosure-core electronics (designed to)
NEMA 4x, IP-64
AC Power (kW)
15
10
“strike” voltage
(270 VDC)
5
0
200
250
300
350
400
450
DC (PV) Voltage (VDC)
DC Amperes (ADC)
Fig. 11 Output power of PVI 13KW / PVI 15KW
70
60
50
40
30
20
10
0
200
250
300
350
400
450
DC (PV) Input Voltage (VDC)
Fig. 12 Maximum continuous DC current input for PVI 13KW / PVI 15KW
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Overall Efficiency DC (PV)
to AC (3-phase) %
100
90
80
70
60
50
0.00
5.00
10.00
15.00
AC Power (kW AC)
Fig. 13. PVI 13KW / PVI 15KW peak efficiency plot at 280VDC input and 25C ambient
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 phenomena, i.e. MPP tracking)
Pin assignment RS232 / RS485 (optional) and Internet Gateway connection
1
2
3
4
5
6
7
8
RS232 TXD
RS232 RXD
RS232 GND
RS485 A (optional)
RS485 GND (optional)
RS485 B (optional)
RS485 GND
NC
(front view of 8-pin communication connector on
inverter, and back of mating connector)
Mating AMPSEAL 8-pin connector, Tyco part#: 776286-1
AMSEAL crimp contact, Tyco part#: 770854-3
Warning: RS232 and RS485 (optional) share the same serial port and only one can be used at one time!
These can be toggled using PC software available from the factory if needed.
When equipped with an optional RS485 communication interface, this inverter can be daisy-chained with any other
residential or commercial Solectria Renewables’ PV inverter for data logging. Each inverter needs to be set to a unique
network ID. To wire the RS485 communications to multiple inverters equipped with RS485 screw terminal port,
locate the screw terminals at the top of the DIN-rail and run a twisted pair wire cable from one inverter to the next
connecting “A” to “A” and “B” to “B”. There is a convenient waterproof grommet on the right side of the inverter
behind the DC disconnect for use with the RS485 cable.
Please call for information on data logging options / wiring diagrams. See the Fat Spaniel manual if your inverter is
equipped with Fat Spaniel Inverter-Direct. If Fat Spaniel or SolView gateway is installed in the inverter, then the
Ethernet CAT5 cable can be routed through the grommet on the right side of the inverter. Any RS485 daisy-chain
connections to other inverters can also use the grommet. 208VAC inverters have an integrated gateway power supply
but 480VAC units have a 120VAC supply than needs to be wired through the grommet as well. Note that the
grommet can be replaced with a conduit fitting and conduit.
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Installation and Operation Manual
Appendix A – PVI 13KW / PVI 15KW Data Sheet
Link to brochure: http://www.solren.com/downloads/PVI_13KW.pdf
Appendix B – Example PV string sizing chart(s)
Link: http://www.solren.com/downloads/PVI_13KWString.pdf
The charts below are simplified string sizing examples. Please use the charts on the website for
complete charts for use across the country.
Appendix C - Contact Information
Solectria Renewables LLC
360 Merrimack Street, Building 9
Lawrence, Massachusetts, 01843, USA
Tel: 978.683-9700
Fax: 978.683-9702
Email: [email protected]
Website: www.solren.com
Authorized Distributors/Dealers/Installers/Designers: www.solren.com
Specific Link: http://www.solren.com/contact/dist.htm
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PVI 13KW / PVI 15KW
Installation and Operation Manual
Appendix D – UL1741/IEEE1547 Certification Letter
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