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BSOL2015-0083 Solectria ManualPVI 23TL PVI 28TL INSTALLATION AND OPERATION MANUAL Revision B [Generation I (SN Prefixes 1159 and 1160)] ©2014, Solectria Renewables, LLC SA � R ECEIVED C U$ SEP 26 2015 CITY OF LA QUINTA COMMUNITY D'EVELOPMENT' 2A PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters IMPORTANT REGISTRATION AND WARRANTY INFORMATION For warranty to become active, this inverter must be registered. To activate warranty and register inverter, please visit the link below. www.solectria.com/registration P&..;':DOCW070365-B "'� "" t Page 2 of 57 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters IMPORTANT SAFETY INSTRUCTIONS In this manual, "inverter" or "inverters" refers to the inverter models: PVI 23TL and PVI 28TL, unless one of the specific models is noted. This manual contains important instructions that shall be followed during installation and maintenance of the 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 symbol, along with the word "WARNING', indicates a fact or =1. feature important for the safety of the user and/or which can cause serious v: hardware damage if not lied g pp appropriately. Use extreme caution when performing this task. NOTE: This indicates a feature that is important either for optimal and efficient use or system operation. EXAMPLE: This indicates an example. 40 SAVE THESE INSTRUCTIONS a4� 5.3 : DOCR-070365-B _ . Page 3 of 57 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters IMPORTANT SAFETY INSTRUCTIONS • All electrical installations shall be performed in accordance with all applicable local, American, or Canadian electrical codes. • The inverter contains no user -serviceable parts. Please contact Solectria Renewables or a Solectria Renewables authorized system installer for maintenance. See Appendix C for Solectria Renewables contact information and Appendix D for information regarding authorized system installers. • Before installing or using the inverter, please read all instructions and caution markings in this manual as well as those on the inverter and PV modules. • Connection of the inverter to the electric utility grid must be completed after receiving prior approval from the utility company and must only be performed by qualified personnel. • Completely cover the surface of all PV arrays with an opaque material before wiring them. PV arrays produce electrical energy when exposed to light and could create a hazardous condition. SAVE THESE INSTRUCTIONS' PRESCRIPTIONS DE SECURITE IMPORTANTES • Tous les travaux d'installation electrique doivent etre executes en conformite aux normes electriques locales ainsi qu'a la norme nationale americaine et canadienne. • Le PVI ne contient aucune piece requerant un entretient effectue par I'utilisateur. Pour toute maintenance, veuillez consulter Solectria Renewables ou un installateur agree par Solectria Renewables (les coordonnees de Solectria Renewables et des installateurs agrees sont indiquees sur le site web de Solectria Renewables: www.solren.com. • Avant d'installer ou d'utiliser le PVI veuillez lire touter instructions et toutes les miles en garde presentes dans ce manuel, sur le SGI et sur les modules PV. • Le raccordement du PVI au reseau electrique ne doit etre effectuee qu'apres avoir obtenu une entente d'interconnexion aupres de la compagnie locale de distribution electrique et uniquement par du personnel autorise et qualifie. • La surface de tous les capteurs PV doivent etre recouverte entierement d'un materiel opaque • (noir) avant de proceder aucablage. Les capteurs PV exposes a la lumiere produisent du courant electrique susceptible de creer une situation de risque. CONSERVEZ CES INSTRUCTIONS IYGCR=0.703:6S=13.: _ _ `Page 4: of_57 J- 11 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters Table of Contents 1.0 Introduction............................................................................................................................. 7 1.1 PVI 23-28TL Inverter Enclosure................................................................................................... 9 2.0 Site Preparation and Inverter Placement................................................................................ 10 2.1 Criteria for Device Mounting.................................................................................................... 10 3.0 Inverter Mounting..................................................................................................................12 3.1 Checking for Shipping Damage.................................................................................................12 3.2 Unpacking and Moving the Inverter into Place........................................................................12 3.3 Inverter Positioning and Mounting...........................................................................................13 3.4 Installing the Mounting Bracket................................................................................................16 4.0 Grounding Connections: ......................................................................................................... 19 4.1 DC and AC Grounds................................................................................................................... 19 5.0 DC Connections from the PV Array.......................................................................................... 21 6.0 AC Connections at the Inverter............................................................................................... 27 6.1 AC Interconnections to Grid.................................................................................................... 28 7.0 Communication Connections .................... :............................................................................. 29 7.1 Connecting TL Inverters with Third Party Data Acquisition Systems ........................................ 31 7.2 Connecting TL Inverters using SolrenView Monitoring Option ................................................ 32 8.0 Commissioning the Inverter PV System................................................................................... 33 8.1 Turning On the Inverter......................:..................................................................................... 33 8.2 Operation..................................................................................................................................33 8.3 Turning Off the Inverter............................................................................................................ 33 9.0 LCD and LED Indicators........................................................................................................... 34 9.1 LCD............................................................................................................................................34 9.2 Screen Descriptions...:...............................................................................................................36 10.0.. Troubleshooting and Inverter Messages................................................................................ 40 11.0 Product Maintenance............................................................................................................ 44 11.1 Check the Electrical Connection............................................................................................... 44 11.2 Clean the Air Vent Filter............................................................................................................ 44 12.0 Product Warranty and RMA Policy ` 12.1 Warranty and Registration........................................................................................................ 45 e DOC R-070365:;B_vF, 0BTj-5,: . Page 5 of IN S PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 13.0 . Technical Data...................................................................................................................... 46 13.1 Output AC Specifications.......................................................................................................... 46 13.2 Input DC (PV) Specifications......................................................................................................47 13.3 Other Specifications..................................................................................................................47 13.4 Temperature Derating Curve....................................................................................................48 13.5 Power Derating Curve Out of MPPT Zone................................................................................48 13.6 Altitude Derating Curve............................................................................................................ 49 ° 13.7 Internal Circuit Diagram............................................................................................................49 14.0 , Accessory Options................................................................................................................. 50 14.1 SolrenView Monitoring............................................................................................................. 50 14.2 Shade Cover.............................................................................................................................. 50 14.3 AC & DC Disconnect Covers...................................................................................................... 51 15.0 Appendices...* ........................................................................................................................ 52 Appendix A — PVI 23-28TL Datasheet...................................................................................................... 52 AppendixB — String Sizing Tool............................................................................................................... 52 Appendix C — Contact Information........................:................................................................................. 52 Appendix D—Authorized Distributors......................................................................................................52 Appendix E — UL 1741 / UL 1699B/ IEEE 1547 / CSA 22.2#107.1 Authorization to Mark ........................ 53 DOCR-070365-B I-- _­ -. - Page 6 of 57 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 1.0 Introduction The PVI 23TL and 28TL are commercial, dual MPPT, three-phase utility -interactive, transformerless PV inverters designed to be interconnected to the electric utility grid. The inverter is listed for use with ungrounded PV arrays only. By following this manual, the inverter can be installed and operated safely. This installation guide is used as a reference for commissioning and as a guideline on how to use the inverter most effectively. This inverter is a transformerless type without galvanic isolation. Therefore, the inverter may only be operated with ungrounded PV arrays. Furthermore, the PV array must be installed in accordance with NEC 690.35 (Ungrounded Photovoltaic Power Systems) and local regulations for ungrounded PV arrays. Additionally, the PV array (PV modules and cabling) must have protective insulation and the PV modules used must be suitable for use with this inverter. The PVI 23-28TL includes key product protection functions, such as: • Anti-Islanding Protection • DC Arc -fault Circuit Interruption • Protection Against Reverse Polarity • Short Circuit Protection • Monitoring DC Input Insulation Against Ground • Monitoring AC Output Voltage and Frequency • Monitoring Leakage Current Against Ground (GFCI) • Monitoring DC Injection from AC Output • DC Input and AC Output Over -voltage Protection • DC Input Over -current Protection • Monitoring Ambient Temperature • Monitoring IGBT Module Temperature • Wide -range Frequency and Voltage Support The inverter is suitable for use indoors and outdoors. It meets the requirements of ANSI/NFPA 70, NEC690.5, UL 1741, IEEE 1547, and IEEE 1547.1 for the parallel operation of power generation plants on low -voltage networks of regional electrical utility companies. The function of the Anti-Islanding protection complies with UL 1741/IEEE 1547 specifications. The Anti-Islanding function guarantees secure disconnection in the case of circuit isolation or interruptions in power supply while also protecting against isolated operation. A DC arc -fault circuit interruption is integrated into the PVI 23-28TL inverter and complies with the requirement of a Type 1 device in the UL 1699B standard. DOCR-070365-B Page 7 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters Feeding power back to the grid involves the conversion of DC voltage from the PV array to grid compatible AC voltage by inverting DC to AC. This unit feeds power into a standard, three-phase commercial, industrial, institutional, or electrical utility facility's electrical system which is connected to the electrical grid. 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 follow local regulations regarding net metering and interconnection in your local area. Note that some utilities need to change their kWh meter for proper net metering measurement and billing. Photovoltaic Array PVI 23TL PVI 28TL Inverter Figure 1.1— Grid -Tied Inverter Application Electrical Grid DOCR-070365-B Page 8 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual It 1.1 PVI 23-28TL Inverter Enclosure n PVI Series Inverters ( Inverter Main Housing Does not contain any serviceable parts; opening this section voids the inverter warranty. 02 Wiring Box For customer's AC and DC wire connections. 0 Mounting Bracket ® Cooling Fans 05 LED Indicators There are four LED indicators used to signal the operating status of the inverter. © LCD The LCD displays all measured values and parameters. 07 Control Keys There are 4 control keys, to switch between display menus and to configure the settings of the inverter. ® DC Disconnect Switch Built-in, lockable disconnect switch used to disconnect the DC input to the inverter. Q AC Disconnect Switch Built-in, lockable disconnect switch used to disconnect the AC output from the PV inverter. Figure 1.2 — PVI 23TL Inverter Interface DOCR-070365-B Page 9 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 2.0 Site Preparation and Inverter Placement The inverter is comprised of a NEMA 4 enclosure, containing electrical and electronic components as well as AC and DC integrated disconnects. NOTE: If the inverter is mounted outside, ensure that the wiring box remains closed during the installation process until access to the box is needed. This precaution will help to avoid damage due to rain, snow, or condensation. Damage to the inverter caused during the installation process will void the warranty. The inverter main .housing cover must remain on at all times. NOTE: Itnis recommended to store the inverter indoors before installation. If the I inverter is to be stored outdoors before being installed and commissioned, care must be taken to avoid condensation inside the unit. 2.1 Criteria for Device Mounting • Because the power electronics are within the rainproof enclosure, the inverter can be mounted outdoors.. • The maximum life for the inverter is achieved by mounting the unit in a clean, dry, and cool location. • For optimal electrical system efficiency, use the shortest possible AC and DC cables but use the maximum allowable cable size. • Install the inverter in an accessible location following local electric codes for enclosure proximity to other equipment. • Although the inverter is designed to function at full power continuously up to 45°C ambient temperature, for optimal inverter life and performance do not mount the inverter in direct sunlight, especially in hot climates. If the unit must be mounted in direct sunlight, a sun -shield is recommended but not required. It is recommended that the inverter is mounted on the north side of buildings or on the north side of a ground mount PV array. WARNING: Be sure to verify load capacity of wall or mounting area where the inverter will be mounted. Inverter Model Weight PVI 23-28TL 122lbs (55kg) Table 2.1— Inverter Weight DOCR-070365-B ; : z Page 10 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters • The ambient temperature must be between -25°C and +45°C for full power and continuous operation. The inverter will'automatically reduce power or may shut down to protect itself if ambient air temperature is outside the normal operating range. • The National Electrical Code (NEC) requires the inverter to be connected to a dedicated circuit with no other outlets or devices connected to this circuit (see NEC Articles 690 and 705). The NEC also imposes limitations on the size of the inverter and the manner in which it is connected to the utility grid (see NEC Articles 690 and 705 for guidance within the US). • The cooling air exhausts are at the right of the inverter. As the air intake is on the left side of the inverter section of the unit, there should be at least 12 inches of clear space at the left of the enclosure. Air should be able to flow all around the unit for proper ventilation. • It is also recommended to have at least 24 inches of clearance at the bottom side for the Inverter LCD to be at eye level (see Figure 3.3 for details). • A minimum distance of 12 inches must be clear above the inverter for ventilation. • 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 45°C or less for full power. The ambient temperature should be kept as low as possible at all times for optimal inverter operation and life. DOCR-070365-B pa-� -4 Page 11 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 3.0 Inverter Mounting WARNING: Any lifting or moving of the inverter requires at least two people. Lifting of the crate/pallet requires at least three people. 3.1 Checking for Shipping Damage The inverter is thoroughly checked and tested rigorously before it is shipped. Although the shipping container is adequately designed to protect the inverter during shipment, the product may be damaged by poor handling, trucking, or transfer station activity. Please inspect the inverter thoroughly after it is delivered. If any damage is present, immediately notify the shipping company to make a claim. If there is any question about potential shipping damage, contact Solectria Renewables but do not remove the unit from pallet/packaging. Photos of the damage would also be helpful in documenting potential shipping damage. If the unit is to be returned, an RMA number must be obtained from Solectria Renewables prior to shipping the unit back. 3.2 Unpacking and Moving the Inverter into Place It is recommended to keep the inverter secured in its box and move it as close as possible to the final location prior to removing it. q WARNING: Any lifting or moving of the inverter, without the aid of equipment, should be performed by at least two people. NOTE: Failure to follow these lifting guidelines may cause structural damage to the inverter and void the warranty. WARNING: Do not install the inverter over combustible surfaces or materials. WARNING: Severe injury or death could occur if the mounting fails and the inverter falls and lands on a person. NOTE: The weight of the inverter will exert an added load to the wall or area where it is to be mounted. Be sure to verify proper load capacity of mounting area. DOCR-070365-B Page 12 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 3.3 Inverter Positioning and Mounting The Inverter can be mounted vertically or with a 15°-90° horizontal angle, as shown in Figure 3.1a below. 90° tS° Figure 3.1a —Allowable Inverter Mounting WARNING: Do not install the inverter tilted forward, lying on its back, or upside q. down as shown in Figure 3.1b. Figure 3.1b — Unallowable Inverter Mounting �=r ... DOCR-070365-B - Page 13 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 3.3.1 Wall Mounting The minimum distances that should be met for wall mounting are shown in Figure 3.2 below. • For adequate cooling, there should be a minimum of >_ 20 inches of space available between two adjacently mounted inverters. • A minimum of 12 inches from the left side and 12 inches from the top are needed for adequate access and cooling. • A distance of 24 inches from the bottom is recommended for the inverter's LCD to be at eye level. If needed, this distance can be lowered to 10 inches. Figure 3.2 - Wall Mounting Clearance Requirements ` `-'DOCR-070365-B Page 14 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual 3.3.2 Wall Mounting/Mounting Bracket Clearance !13.96 in. 9.84 in. 9.84 in. c PVI Series Inverters �I I Pi 43.6 in. r. M Figure 3.3 — Wall Mounting Clearance Requirements of Mounting Bracket 3.3.3 Pillar Mounting The minimum inverter mounting dimensions on a pillar are shown in Figure 3.4 below. ,,.8h ,mO. Figure 3.4— Inverter Pillar Mounting Dimensions DOCR-070365-B Page 15 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 3.4 Installing the Mounting Bracket Figure 3.5 — Inverter Wall Bracket Mounting Figure 3.6 — Inverter Main Housing Mounting NOTE: Always use all (8) mounting plate fasteners. 1. Mark the 8 holes on the load-bearing surface using the available mounting bracket as a template (see Figure 3.5). 2. Drill 8 holes with a 13/32 -inch drill bit and install eight "M8 expansion tubes" (available in accessory box). 3. Secure the bracket to the wall using eight M8X25 bolts (available in accessory box). See Figure 3.5. 4. (Option 1) Lift mounting: Attach both lifting eye bolts (available in accessory box) to the inverter housing box. Use a sling rope or bar passed through both eye bolts to mount the inverter to the bracket. (Option 2) Manual lift: Two people lift the inverter from the bottom and manually mount the inverter to the bracket. 5. Carefully secure the main housing of the inverter onto the bracket. r -a - D 0 C R - 0 7 0 3 6 5 - B "t - Page 16 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual ,tel Figure 3.7 —,.Remove Cover Plate of Main Housing Figure 3.8 — Remove Cover of Wiring Box Figure 3.9 — Connecting the Wire Box to the Main Housing DOCR-070365-B PVI Series Inverters 6. Using a #2 Philips screw driver, remove cover plate on the bottom of main housing. . 7. Using a #2 Philips screw driver, remove cover of wiring box and keep the cover (it can be re -secured later onto the enclosure). 8. Connect the wiring box to the main housing using four M6*16 screws (available in accessory box). Torque = 25in-lbs : t'• i. Page 17 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters Figure 3.10 - Fasten the Main Housing and Wiring Box onto the Bracket r. Figure 3.11- Attaching the Cover Board • 11 n Iml I i Figure 3.12 - Installing an Anti -theft Padlock 9. Connect the main housing and wiring box to the mounting bracket using a #2 Philips screwdriver and six M5*10 bolts (available in accessory box). Torque = 14in-lbs 10. The previously removed cover box can be reattached to the left side of the wiring box (available in accessory box). 11. An anti -theft padlock can be installed as shown in the image to the left (padlock not available in accessory box). .IS . DOCR-070365-B - - --1-. -' - Page 18 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 4.0 Grounding Connections WARNING: All electrical installations must be performed in accordance with all applicable local electrical codes, and must be done by electrically qualified personal. Only make AC and DC grounding connections directly to the terminals within the wiring box. 4.1 DC and AC Grounds The inverter must be properly grounded in accordance with local code. The inverter wire terminals for PVI 23TL and PVI 28TL are shown below: 21.3 in. (540mm) 15.9 in. (4O4mm) 13.5 in. (344mm) 10.9 in. (278mm) 8.3 in. mm 5.8 in 3.1 in. 46mm) 0 0 Position Connection Entry 1 Knockout holes for DC input wires and equipment ground (1"or 1-1/4") 2 Knockout hole for AC output and ground wires (1"or 1-1/4") 3 Knockout hole for communication wires (3/4") 4 External Ground Connection Figure 4.1— Knockouts and External Ground Connection PVI 23TL and PVI 28TL inverters have a ground bar with four terminals used to terminate the equipment ground, each terminal can accept a single copper conductor ranging from 6 to 10 AWG (Torque = 14 in -lbs), one stud that fits a M5 nut to terminate the AC system ground (Torque = 14 in -lbs), and an external ground point (Torque 14 in -lbs). The stud and external ground can accept a single copper conductor ranging from 8 to 10 AWG. NOTE: Lug for stud is located in the accessory box. WARNING: Install grounding conductors per local codes and standards. Page 19 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 0 L1 L2 L3 N WARNI G:.� Ga) Figure 4.2 — Ground Wiring Connection f. ` 7agE ' I; 73 DOCR-070365-B .. � 7'.P4e 20 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 5.0 DC Connections from the PV Array WARNING: All wiring connections at the inverter must be performed with the building AC source circuit panel/breaker off and the PV module strings disconnected. AC and DC disconnect switches at the inverter must also remain off during termination. WARNING: All electrical wiring must be done by electrically qualified personal in accordance to local and national electrical code. WARNING: Before connecting the DC conductors of the PV array to the inverter, verify and mark the polarity of the conductors. WARNING: Remove all fuses with a fuse puller before wiring. Verify correct a, polarity and voltage before installing fuses. WARNING: Before connecting the DC conductors of the PV array to the inverter fuse terminal or bypassing them; verify that the DC voltage is less than 1000 VDC 1 in all conditions. DC voltages over 1000 VDC will damage the inverter. Configure the array such that the open circuit voltage will never exceed 1000 VDC. Warranty is void if more than 1000 VDC is applied to the DC section of the inverter. WARNING: Fuses in the inverter's fused combiner must only be replaced with the, same type and rated fuses as originally installed. WARNING: Use copper wire for all DC and AC wire connections. i C—T'S'DOCR-070365-B _ Page 21 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 5.1 Maximum Power Point Trackers The Inverter is designed with two separate MPP Trackers (Dual MPPT) which can operate independently or combined. The default option is two individual independent trackers. This option allows sites with shading and/or unbalanced string sizes to be connected to two separate zones, this allows for higher tracking efficiency and greater revenue. However, this also means that one must consider these two zones as two separate inverters and power must be balanced as much as possible between. NOTE: Connecting all of the inputs at zone "PV1" will result in only utilizing 50% of the inverter power. A maximum of 16 total DC conductors (8 positive and 8 negative) can be connected and fused at 15Amps as shown in Figure 5.1 below. DC Input 2 MPPTs Working Independently (Dual MPPT) Wire Size PV1, CVI- 1 IVb PV1. ' Inverter 8 strings 10 AWG 041, PV3 I Vi Figure 5.1— Standard String Configurations This revision B manual is intended for use with the "Gen I" wiring box design shown below on the left. If the inverter contains the "Gen II" wiring bow shown below on the right, please refer to the manuals listed as revision C or later, which can be obtained electronically through the Solectria website. Figure 5.2 — Wiring Box Design Change _.' DOCR-070365-B Page 22 of 53 PVI 23TL & PVI 28TL Installation and Operation'Manual PVI Series Inverters WARNING: Strings must be balanced for optimum performance and revenue. 1� When doing DC/AC ratio sizing, perform calculations on the zone level unless you intend to combine MPPT. Figure 5.3 — Typical DC Wiring Connection Figure 5.3 below shows the default status of the switch 5401. PAR IND 5401 Figure 5.4 — Switch Configuration for Two Individual (Dual) MPPT Zones NOTE: Switch 5401 is located under the "Enter" control key inside of the wiring box. Combining the zones helps make sure that one zone is not overloaded while the other is under loaded. This might be the case when designing an odd number of strings or sizing with a high DC/AC ratio. ' 5.1.1 Setting the Single (Combined) MPPT The two MPPT zones can be combined using the following steps: 1. Remove the cover of the wiring box. 2. Use a #2 Philips head screwdriver and remove the wire connected to terminal J9 and J10. 3. Add the connecting busbar from the accessory kit to terminals J9 and J10 (see Figure 5.4). 4. Return wires removed in step 2 and torque the bulbar to 10 in -lbs. ra; 0 iff 7-:, DOCR-070365-6 T � 7—i > I Page 23 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters Figure 5.5 — Busbar Connection Used for Single (Combined) MPPT Option 5. Set switch 5401 to parallel/combined (PAR) mode. PAR IND .,h S401 Figure 5.6 — Switch Configuration for One Combined MPPT Zone Dual tracking MPPT might seem overwhelming at first, contact us at inverters@solectria.com If you have further questions, we are here to help. 5.3 DC Wiring 90°C PV copper conductors must be used for wiring for DC wiring. The inverter terminals are listed for 75'C wire; see NEC 310.10 or the Canadian Electrical Code regarding temperature ratings of wire and terminals. The conductor size shall not be smaller than the 75°C wire size based on the ampacities given in Table 310.16 of the NEC, ANSI/NFPA 70, and an additional derating factor of 125% as indicated by UL 1741. t NOTE: Always connect an equal number of wires to PV1 and PV2 connectors for dual MPPT zone operation. If an odd number of connections are required, we recommend setting the inverter to single (combined) MPPT zone. Temperature derating factors, voltage drop, and other considerations may dictate that larger than minimum wire sizes be used. Verify that any wire size choices meet local codes. e F1i DOCR-070365-B Page 24 of 53 l PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters *Consider combining MPPT zones for such configuration. Table 5.1— Wire Sizes Associated with Integrated Fused PV Combiner 5.3.1 Fuse Bypass WARNING: DC fuses inside the wiring box must be removed before any of the configurations in Table 5.2 are attempted. WARNING: Fusing at an external combiner box is required for all of the connections in Table 5.2. ,a DOCR-070365-B Page 25 of 53 Recommend Conductors Fuse DC inputs Configuration Max. DC PV Fuse Torque Type Wire Size (ALL) Standard use of integrated 12A/1000 V for 8 in inputs p string combiner box 10 AWG PVI 23/28TL loin -lbs PV Fuse 7 inputs * Standard use of integrated 10 AWG 15A/1000 V for loin -lbs PV Fuse string combiner box PVI 23/28TL 15A/1000 V Standard use of integrated for PVI 23TL 6 inputs string combiner box 10 AWG 20A/1000 V loin -lbs PV Fuse for PVI 28TL 5 inputs * Standard use of integrated 10 AWG 20A/1000 V for 10in-lbs PV Fuse string combiner box PVI 23/28TL Standard use of integrated 25A/1000 V for 4 inputs string combiner box 10 AWG PVI 23/28TL loin -lbs PV Fuse String Two standard inputs that combiner bypass integrated string g AWG box bypass, combiner box and use Fuse Bypass 10in-lbs PV Fuse 2 inputs separate MPPT channels String Two standard inputs that combiner bypass integrated string g AWG box bypass, combiner box and use Fuse Bypass 10in-lbs PV Fuse 2 inputs combined MPPT channels *Consider combining MPPT zones for such configuration. Table 5.1— Wire Sizes Associated with Integrated Fused PV Combiner 5.3.1 Fuse Bypass WARNING: DC fuses inside the wiring box must be removed before any of the configurations in Table 5.2 are attempted. WARNING: Fusing at an external combiner box is required for all of the connections in Table 5.2. ,a DOCR-070365-B Page 25 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters DC Inputs/ S401 Configuration Type Proper Wiring Wire MPPT Switch Zones FaFf Q' mmmmmm;Dmm m PVI+ L INI+ m m m m m m iD m m cD L mm�mmmmmm mm mmmiDm mmmmm PVI• _ INI 2 Inputs 8 ° � � 0 -2 MPPT Inverter M0IIM IND Zones + + AWG Im, -- - PV2• I_;t IM• p wLj s# I(_ r - o (D mmmmmmmmmmmm- PVI+ ,N,+ mm[Dm [Dm 0 mmm ADD 't on i m Jumper (DmlDmmmmmmmm PVI• «; IN]- ® Busbar 2 Inputs ` Inverter erte PAR 8 ®� ° ° ° ° ° ® ® 1 MPPT Zone Ix2+ 1171 Iltll Itll I Ipl AWG N Table 5.2 — Internal String Combiner Bypass Options x 4tz:Z'« cf K DOCR-070365-B _-C' - `} • = Page 26 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 6.0 AC Connections at the Inverter Both the PVI 23TL and PVI 28TL 3-phase AC wiring is recommended to be installed with five conductors, one per phase along with a neutral and an AC equipment ground as per local requirements. 1 o WARNING: The terminal is rated for CU wire only. • The integrated disconnect switch terminals are listed for 75°C wire. See NEC 310.10 or the Canadian Electrical Code regarding the temperature ratings of wire and terminals. • The conductor size shall not be smaller than the 75°C wire size based on the ampacities given in Table 310.16 of the NEC, ANSI/NFPA 70, and an additional derating factor of 125% as indicated by UL1741. Temperature derating, voltage drop, and other considerations may dictate that larger than minimum wire sizes be used. Verify that wire size choices meet local codes and are properly sized to reduce voltage drop. Inverter AC Number of Max. AC Min. AC Max. AC Recommended Model Voltage Conductors Wire Size Wire Torque Output Breaker Size Size Current 3 (1 per phase) PVI 23TL 480V 6AWG 8AWG 30in-lbs 32A 40A plus neutral 3 (1 per phase) PVI 28TL 480V 6AWG 8AWG 30in-lbs 39A 50A plus neutral Table 6.1— AC Customer Connections and Interconnection Information The inverter includes an M5 stud for the connection of an AC Equipment Grounding Conductor (EGC). The stud can accept a single copper conductor ranging from 8-10AWG. AC ECG shall be sized per local code requirements. The AC EGC is connected to the stud via an M5 nut. A crimp lug is available in the accessory box provided (torque =14in-lbs). Figure 6.1— AC Wire and Grounding Connections PaZ --4 6T3 DOCR-070365-B _ . Page 27 of 53 c:Er�r:� -- •.z�n • zz�rp� .� zn . � Q Figure 6.1— AC Wire and Grounding Connections PaZ --4 6T3 DOCR-070365-B _ . Page 27 of 53 PVI 23TL & PVI 28TL Installation and Operation'Manual 6.1 AC Interconnections to Grid PVI Series Inverters Description Configuration Inverter Compatibility a 4 Wire WYE Inve n 0 3P-N+G o Ue (3 phase + it Compatible with 23TL Neutral +GND) trio c N Compatible with 28TL Other All other configurations not mentioned in this Not compatible with 23TL Configurations document, such as Corner Grounded Delta Not compatible with 28TL Table 6.2 — Allowable AC Interconnections to Grid yl WARNING -.'Do not use power tools to reinstall the wiring box cover. D 0 C R - 0 7 0 3 6 5 - B ... Page 28 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 4 7.0 Communication Connections PVI 23-28TL inverters support industry standard RS -485 Modbus communication. Below is information on the available communication interfaces. a o _ 0 0 C3 0 O i­m;­**m­u­'nication Q hoard P2^03 P204 P207 I I� R 6 OPAR ® IND OB ON 5401 OFF moi H U UU UU 6)(7 Figure 7.1— Communication Section of the Inverter t 'Pa"E z6 OfL.',DOCR-070365-B _r � Page 29 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters Item Port Item # Name Name Port Image Configuration Description 1 P205 I Dry Contact N.O. N.C. COM Remote alarm option. Contact us at inverters@solectria.com for possible configuration. 2 P207 USB Port Port used forfirmware upgrade. Not available for customer use. . RJ45 Port r y P204 1 1 1'1 CgMr»i' 5 1 P208 RS -485 Port (5 -Pin Connector) There are two RS -485 signal ports on the inverter. No. Color Function 1 White Orange 485+ 2 Orange N.C. 3 White Green 485- 4 Blue N.C. 5 White Blue N.C. 6 Green N.C. 7 White Brown COM 8 Brown N.C. 5 -pin connector also available for �Z RS -485 communication. 9 Inverter Single Inverters No. Color 1 NC 2 NC 3 RED RS485+ Blue RS485 - H54 Com �^� o= !-•_DOCR-070365-13 Page 30 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters Table 7.1— Available Communication Options in PVI 23-28TL Inverter 7.1 Connecting TL Inverters with Third Party Data Acquisition Systems For multiple inverters at one location it is possible to use one Data Acquisition System for up to 16 inverters. Connect the inverter's RS -485 together can be done using standard RJ -45 Ethernet patch cords and plugging these into RJ -45 jacks at each inverter on the right side of the wiring board. Alternatively one can utilize the 5 pin connector (P208) and a shielded twisted pair cable. 1 2 ...... N Data Acquisition RS -485 RS -485 RS -485 System Connections Connections Connections 5402 S402 5402 OFF OFF ON c Figure 7.2 — Multiple Inverters with Third Party Data Acquisition System NOTE: The Data Acquisition System must have the same Baud Rate (9600 default) as the inverter for proper communication. However, each inverter requires its unique Modbus ID. DOCR-070365-B _ - Page 31 of 53 1201)120 0 resistor that can be added for Termination N gN impedance matching on the Modbus (RS -485). 6 5402 Switch for FF FF RS -485 IS 54W 54M This switch should only be turned on 1 2 for the last inverter in the daisy Communication chain. MPPT Zone PAR DAR 8 Used for changing between Dual 7 5401 IND IND and Single MPPT configuration. Configuration 4 som S,1), Covered in detail in Chapter 5. 1 2 Table 7.1— Available Communication Options in PVI 23-28TL Inverter 7.1 Connecting TL Inverters with Third Party Data Acquisition Systems For multiple inverters at one location it is possible to use one Data Acquisition System for up to 16 inverters. Connect the inverter's RS -485 together can be done using standard RJ -45 Ethernet patch cords and plugging these into RJ -45 jacks at each inverter on the right side of the wiring board. Alternatively one can utilize the 5 pin connector (P208) and a shielded twisted pair cable. 1 2 ...... N Data Acquisition RS -485 RS -485 RS -485 System Connections Connections Connections 5402 S402 5402 OFF OFF ON c Figure 7.2 — Multiple Inverters with Third Party Data Acquisition System NOTE: The Data Acquisition System must have the same Baud Rate (9600 default) as the inverter for proper communication. However, each inverter requires its unique Modbus ID. DOCR-070365-B _ - Page 31 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 7.2 Connecting TL Inverters using SolrenView Monitoring Option Solectria offers SolrenView monitoring option for the PVI 23-28 TL inverters. This option includes the SolrenView data logger which can be `integrated with the inverter's wiring box. The SolrenView logger is used to connect the TL inverters to the Solectria SolrenView web based monitoring site. The SolrenView gateway can be factory installed, distributor installed, or field installed and is installed out of view inside of the inverter. ous RSd85 Gateway/ Inverted M ( ) SolrcnVlcw IP Fireavall IF SolrenView Logger Internet Cloud p,�„ I Server Inverter 2 Inverter i. Figure 7.3 — High Level Block Diagram of the SolrenView Data Acquisition Infrastructure Gateway/ Firewall 1 2 .000.0 1 0 (Customer Provided) SolrenView Data RS -485 RS -085 RS -485 LoggerConnections Connections Connections 5402 5402 5402 OFF OFF Modbus IRS -4851 ON Figure 7.4 — Multiple Inverters with SolrenView Data Logger NOTE: The SolrenView data logger in Figure 7.4 is typically installed inside the first PF inverter. It is shown outside for clarity reasons. }g rig 5- DOCR-070365-B L `.�' Page 32 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 8.0 Commissioning the Inverter PV System Before commissioning, ensure that the inverter is mounted, all connections are made, and the inverter is ready to power up. �\ NOTE: Make sure all tools, parts, etc., are removed from the vicinity of the inverter before turning it on. WARNING: Make a final check of all AC and DC wiring to the inverter and in the system before turning on. WARNING: Connecting the inverter to the electric utility grid must only be completed after receiving prior approval from the utility company. Installation must be performed only by qualified personnel/licensed electrician(s). NOTE: With the PV modules connected and inverter disconnect switches still off, perform a final check of the PV voltage and polarity once more using a digital volt meter and probing the positive (+) and negative (-) PV connections. 8.1 Turning On the Inverter 4 1. Turn on the dedicated three-phase circuit breaker or disconnect switch at the building service. 2. Turn on AC disconnect. 3: Turn on DC disconnect. 8.2 Operation The inverter will connect to the electric grid when the DC voltage first exceeds 330VDC (strike voltage) and 30OW of power is available. The inverter will shut down when the DC voltage falls below 300VDC. 8.3 Turning Off the Inverter 1. Choose "4 settings" from the Main Menu, and press ENT. 2. Choose "1 ON/OFF". Move the cursor to "OFF" and press ENT. 3. The inverter will slowly ramp down the current and shutdown. 4. Turnoff the DC disconnect followed by the AC disconnect. DOCR-070365-B Page 33 of 53 L PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 9.0 LCD and LED Indicators The inverter operates automatically without the need for user interaction. The LCD and LED indicators on the front of the inverter provide valuable operating information. 9.1 LCD ESC O POWER O RUN O GRID O FAULT Figure 9.1— LCD The four touch keys below are available to help the customer scroll through the information. Key Description Function Escape key Back/End/Mute Confirm entering the menu/Confirm set ENT Enter key point -up in selection menu/+1 setting ®Page ^ Up increment Page -down in selection menu/ -1 setting ®v Down decrement DOCR-070365-B Table 9.1— Key Descriptions Page 34 of 53 PVI 23TL & PVI 28TL Installation and Operation Nanual PVI Series Inverters The LEDs on the left indicate the operational status of the inverter. LED Light Status Indication Troubleshooting Light on DC voltage available at the No need, Standard Operation inverter Power Low DC or possible power 1. Check DC input polarity is correct. Light off supply problem pp y p 2. Verify DC voltage above 180VDC. 3. Verify DC disconnect switch is on. Light on Inverter is producing power No need, Standard Operation Verify Inverters ambient temperature Derating isn't above 45°C. Flash (light on 0.5s, light off 1.5s) NOTE: If the input power is above the RUN rated output power the inverter will derate. 1. Verify that there is no Snow on the Light off Inverter is not producing array. power 2. Check if Error light is on or flashing; if so skip to Section 10. Light on AC voltage is available at the No need, Standard Operation inverter AC voltage out of setting Check AC voltage and verify it is GRID Flash range within range IEEE 1547 specified (light on 0.5s, light off 1.5s) range. Light off No AC voltage at the inverter Verify that AC is available at the inverter. Light on Indicates a possible fault Note the LCD message and refer to the Fault part of Section 10. Slow flash Indicates an Alarm Note the LCD message and refer to (light on 0.5s, light off 2s) the Alarm part of Section 10. FAULT Indicates protective action Fast flash being triggered Note the LCD message and refer to (light on 0.5s, light off 0.5s) the Protection part of Section 10. Light off No fault No need, Standard Operation Table 9.2 — LED Indicators Meaning DOCR-070365-B Page 35 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 9.2 Screen Descriptions 9.2.1 Main Screen (Default) Press ESC to move from the Main (Default) screen into the Start Menu. 9.2.2 Start Menu 1. Operation Info 2. Alarm 3. History 4. Settings 5. Power Dispatch 9.2.3 Operation Info Menu The Info Menu displays the data stored in the inverter memory. Use the So buttons to scroll UP and DOWN through the list. Pressing 17=7 will take the screen back to the Start Menu. la 13.9A Ib 14.1A Ic 13.1A ITmod 78.2C Tamb 50 C Upv 1 May 23.5kWh 1 OP.Info 0 PDayPk 19kW Upv 2 DayT 12 .1 h Ipv2 14.3A Uab 400.2V AC Voltage (V) Ubc 400.9V AC Voltage (V) Uca 399.7V AC Voltage (V) Freq 60.OHz la 13.9A Ib 14.1A Ic 13.1A ITmod 78.2C Tamb 50 C Upv 1 360.OV Ipv1 14.7A Upv 2 360.4V Ipv2 14.3A Sac 17KVA Pac 16.7kW AC Energy (EDay) Energy (kWh) Cumulative AC AC Power Output (PDayPk) (kW) AC Power Output Run Time (DayT) Hours AC1 Voltage (Uab) AC Voltage (V) AC2 Voltage (Ubc) AC Voltage (V) AC3 Voltage (Uca) AC Voltage (V) AC Freq. AC Frequency (Hz) ACI Current (la) AC Current (A) AC2 Current (Ib) AC Current (A) AC3 Current (Ic) AC Current (A) Heatsink Temperature °C Ambient Temperature °C DC Voltage (Upv1) DC Voltage (V) DC Current (Ipv1) DC Current (A) DC Voltage (Upv2) DC Voltage (V) DC Current (Ipv2) DC Current (A) Sac Apparent Power (kVA) Pac I Real Power (kW) Table 9.3 — Operation Information Submenu DOCR-070365-B �,` " - _ Page 36 of 53 ti PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 9.2.4 Alarm Menu The Alarm Menu displays inverter alarms and faults, some of which may be modified with the keypad. Use the 11 and 13 buttons to scroll up,and down through the list. Pressing M7 will take the screen back to the Start Menu. Any fault message will be indicated in the Alarm Menu. 2 Alarm N0 NoError LeL4EepromErr ProteCt0010 Figure 9.2 — Present Fault Information 9.2.5 History Menu The History Menu displays inverter data history, some of which may be modified with the keypad. Use the a and 0 buttons to scroll UP and DOWN through the list. Pressing will take the screen back to the Start Menu. The following information can be found in the menu: 1. Up to 100 entries of the most recent fault messages recorded and retrieved. 2. The last 21 days of operation history data is available. 3. Product software/hardware and serial number information. 4. Cumulative generated power information. No NoError 1.St2010.12.15 20:50 Yes SPI Error op 2.Ed2010.12.15 20:59 SPI Error 1 HistErr ' PIs input date 2 OP.Recd 3 Version —2— F-12/15 --4 TotalTag OSPVer. 0.01 LCDVer. 0.01 Serial No. 10731220003 Total -Fag (KWh) 2123.5 Figure 9.3 — History Menu and Submenu EDay 123.5KWh PDayPk 20.OKW DayT 7.Oh 0--' DOCR-070365-B T- - - "Page 37 of 53 e PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 9.2.6 Settings Menu The inverter parameters can be adjusted by using commands in the Settings Menu as shown in Figure 9.7 below. Options such as Power ON/OFF, Language, Sounds, Date, Communications, and MPPT can simply be changed/set from the Settings Menu. LPr NOTE: When prompted for a password, enter the following: UP, DOWN, UP, DOWN, then ENT. 1 ON/OFF Eetti ng 2 Language 3 Buzzer —4 SysTime 5 Commun 6 OtherCmd 7 NetConflg ON OFF ON State —. t�[ — Francaise — Italiano English Deutsch EnglishVer. EnglishVer. EnglishVer. IKeyBeep Enabled AlarmBeep -- Disabled I 2009/ 12 /15 21 : 14 — Address 2 BaudRate 3 19600 219200 ARCOption IPAddr:10 122 ARCFaultClear 1 123 MPPTOption SubMask:255 255 MPPTCycle 255 Min 0 MPPTScan GateWay:10 122 1 254 DHCP DNSSer.: 10 122 <Enable/Disable> 0 StaticlP 1 Figure 9.4 — System Setup Menu and Submenu LPF NOTE: The inverter and SolrenView (see Section 7.7) must have the same Baud Rate (9600) and Address (Inverter ID) for proper communication. NOTE: When connecting multiple inverter (up to 16) to a single data logger each inverter requires a unique Address (Inverter ID). DOCR-070365-B Page 38 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 9.2.7 Power Dispatch "ActivePower" and "PowerFactor" parameters can be set up through the LCD as well as remotely. NOTE: These parameters are only adjustable with permission from the local utility. ActivePower(%) 5 Dispatch 100.0 PowerFactor 1.000 Figure 9.5 — Active Power and Power Factor Settings b NOTE: When prompted for a password, enter the following: UP, DOWN, UP, DOWN, then ENT. NOTE: It is often common at sites with High AC voltage above 1.05p.0 that the Utility would like to modify the power factor to reduce the voltage at the point of common coupling. This can be done by setting the inverter to absorb vars. For the PVI 23-28TL this can be achieved by setting the inverter to a negative value. For example, one would set the power factor to -0.95 which will help reduce the AC voltage at site by allowing the inverter to absorb vars. If you are interested in enabling these features or in further understanding their capabilities, please contact us at support@solectria.com for more details. Tzn-;L DOCR-070365-6 ' " Page 39 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 10.0. Troubleshooting and Inverter Messages Although the inverter is designed for many years of power production, there may be instances where error messages are displayed on the LCD. This table can be used to help identify the error and resolve it. Type Name Definition Possible Causes Recommended Solutions 1. Internal 1. Verify temperature temperature sensor reading off of the display. is making poor 2. Switch off the inverter's Abnormal contact. internal disconnects. Alarm 1. TempSensorErr temperature 3. Switch the Inverter reading back on. 2. Temperature 4. If error does not clear, sensor is damaged. contact Solectria Customer Service. 1. Observe for 5min and see whether the alarm is 1. Poor connection of cleared automatically. Inverter's 2. Switch off the inverter's internal the inverter's internal disconnects. Alarm 2. SPICommErr internal communication 3. Switch the Inverter failure communication back on. connector. 4. If error does not clear, contact Solectria Customer Service. 1. Observe for 5min and 1. Fan service life has see whether the alarm is Inverter's expired. cleared automatically. internal fan 2. Switch off the inverter's Alarm 3. IntFanErr (can't be seen internal disconnects. externally) is 3. Switch the Inverter not operating back on. properly 2. Fan connector is 4. If error does not clear, making a poor contact Solectria connection. Customer Service. 1. Observe for 5min and One of the see whether the alarm is three external cleared automatically. Alarm 4. ExtFanErr fans is not 1. Fan is blocked. 2. Switch off the inverter's operating internal disconnects. properly 3. Check the fan blades for debris. -DaCR=070365=B:1 Page:40:of `53' PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters " '-`EYOCR-070365=B - "Page -41 of'53 2. Fan service life has 4. Switch the Inverter ended. back on. 5. If error does not clear, 3. Fan socket contact Solectria connecter is making Customer Service. a poor connection. 1. Observe for 5min and 1. A problem with see whether the alarm is Alarm 5. EepromErr Incorrect the inverters cleared automatically. memory reading 2. If error does not clear, internal memory. contact Solectria Customer Service. 1. Possible 1. Observe for 5min and Internal Arc communication error see whether the alarm is Protection 1. Arc Board board self -check between Arc board cleared automatically. Error and Inverter. 2. If error does not clear, error contact Solectria 2. Abnormal reading g within the Arc board. Customer Service. 1. Ambient 1. Confirm that external temperature outside ambient temperature is the inverter is too within the specified range high. of operating temperature. 2. Verify air inlet and outlet are not blocked. Ambient 3. Verify fan is not temperature or 2. Fan is blocked. blocked. Protection 2.OverTemp temperature 4. Verify proper spacing inside inverter is was followed during too high installation. 5. Observe for 30min and 3. Poor cooling due see whether the alarm is to improper cleared automatically. installation. 6. If error does not clear, contact Solectria Customer Service. 1. Grid voltage is abnormal. 1. Observe for 10min and see whether the alarm is 2. No AC voltage at cleared automatically. Grid voltage the inverter. 2. Verify Grid Voltage is 3. Improper AC Protection 3. GridV.OutLim exceeds the within range. specified range wiring (see Section 3. Verify proper AC wiring. 6.1). 4. If error does not clear, contact Solectria 4. Loose AC Customer Service. connections. " '-`EYOCR-070365=B - "Page -41 of'53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters DOCR-070365-B 7 - Page 42 of 53 1. Observe for 10min and 1. Grid frequency is see whether the alarm is out of range. cleared automatically. Grid voltage 2. Verify grid frequency is Protection 4. GridF.OutLim -frequency is within range. abnormal 3. Verify proper AC wiring. 2. Loose AC 4. If error does not clear, connections. Contact Solectria Customer Service. 1. Observe for 30min and see whether the alarm is cleared automatically. 2. Verify DC open circuit DC input input voltage is within 5- PV1(2) voltage exceeds specified range. Protection VoltOver the specified 1. DC over -voltage. 3. Switch off the inverter's value internal disconnects. Switch the Inverter back on. . 4. If error does not clear, contact Solectria Customer Service. 1. Verify DC voltage DC inputs 1. PV positive pole polarity is correct on all Protection 6. PV1(2) connected with and negative pole inputs. Reverse incorrect are connected in 2. If error does not clear, polarities reverse. contact Solectria Customer Service. 1. Excessive parasitic 1. Observe for 10min and capacitance on PV see whether the alarm is DC leakage module due to cleared automatically. current is above insulation failure. 2. Contact System installer Protection 7. GFCI.Err recommended to check installation for value 2. Abnormal possible Ground Fault. 3. If error does not clear, grounding contact Solectria conditions. Customer Service. DC insulation 1. Insulation to Contact System installer Protection 8. IsolationErr impedance to ground is below to check installation for ground recommended value. possible Ground Fault. DOCR-070365-B 7 - Page 42 of 53 PVI 23TL & PVI 28TL Installation and Operation?Manual PVI Series Inverters Table 10.1—Troubleshooting 0 Pai; =� c E--,DOCR-070365-B -'"' Page 43 of 53 1. One of the 1. Observe for 10min and Internal inverter's internal see whether the alarm is Protection 9. IntProtect problem within protection features cleared automatically. 0010-0260 the inverter was triggered 2. If error does not clear, causing the inverter contact Solectria to shut down. Customer Service. 1. An internal Arc 1. Have qualified Electrical Inverter shuts fault occurred on the Personnel inspect wiring Protection 10. Arc Protect down due to a DC side. section of Inverter. possible Arc 2. If no issues are found, fault concern 2. Fault with the Arc contact Solectria board. Customer Service. - Internal non- 1. The inverter will restart 1. IntFault0010- critical fault 1. A fault occurred once the fault is cleared. Fault 150 within the internally within the 2. If error does not clear, inverter inverter. contact Solectria Customer Service. Table 10.1—Troubleshooting 0 Pai; =� c E--,DOCR-070365-B -'"' Page 43 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 11.0 Product Maintenance Regular maintenance helps extend product lifetime and performance. 11.1 Check the Electrical Connection Check all the cable connections once every 6 months, by performing the following steps: 1. Turn off inverter DC disconnect. 2. Turn off inverter AC disconnect. 3. Lock out all DC and AC sources to the inverter. 4. Verify absence of DC and AC voltages at the wiring box. 5. Check for loose or untightened cables; follow torque and safety instructions in the manual. 6. Check for cable damage, especially whether the cable surface is scratched or smooth. Repair or replace the cables if necessary. 11.2 Clean the Air Vent Filter On average, it is recommended to check the air vent of the fans once every 6 months. Do so by performing the following steps: 1. Turn off inverter DC disconnect. 2. Turn off inverter AC disconnect. 3. Lock out all DC and AC sources to the inverter. 4. Verify absence of DC and AC voltages at the wiring box. 5. Use Philips Screw driver to remove Vent covers. 6. Clean vents using dry cloth. 7. Return Screws (torque = 10in-lbs). Figure 11.1— Fan Vent Locations DOCR-070365-B y; Page 44 of 53 k J PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 12.0 Product Warranty and RMA Policy 12.1 Warranty and Registration The warranty and RMA statements for this product are available online at httr)://www.solectria.com//site/assets/files/1091/inverter warrantv-1.odf. If you do not have access to the internet or would like to request a copy to be mailed to you, please contact the Solectria Renewables Customer Service Department at 978-683-9700. DOCR-070365-B l I Page 45 of 53 0 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 13.0 Technical Data 13.1 Output AC Specifications The inverters are designed to feed power into a standard 60Hz, three-phase AC utility service provided within a facility with a rating of not less than the rating of the inverter(s) connected to it. The inverter is designed to work with the range of AC voltages for a three-phase service defined by IEEE 1547-2003 and ANSI C84.1. Table 13.1— AC Output Specifications PV123TL PV128TL Unit Nominal Output Voltage 480 480 VAC Operating AC Voltage Range 88-110% VAC Operating Frequency 60 Hz Output Frequency Range 59.3-60.5 (adjustable 55-65) Power Factor Unity, > 0.99 (adjustable t0.8) Total Harmonic Distortion (THD) @ Rated Load < 3% Continuous Output Power ' 23 28 kW Continuous Output Current (VAC) @ Nominal Voltage 27.7 33.7 Amps Maximum Output Current @ 88% VAC 32 39 Amps Grid Connection Type 3o+/N/GND One Cycle Short Circuit Current (L-N/GND)/Duration 52.9Amps RMS/20ms One Cycle Short Circuit Current (L1/L2/L3)/Duration 69.6Amps RMS/20ms Table 13.1— AC Output Specifications Table 13.2 — Efficiency of Inverters T DOCR-070365-B Page 46 of 53 PV123TL PV128TL Peak Efficiency 98.6% 98.5% CEC Weighted Efficiency 98.0% 98.0% Tare Loss 1W 1W Table 13.2 — Efficiency of Inverters T DOCR-070365-B Page 46 of 53 PVI 23TL & PVI 28TL Installation and Operation"Manual PVI Series Inverters 13.2 Input DC (PV) Specifications Table 13.3 — DC Input Specifications 13.3 Other Specifications Integrated String Combiner Option PV123TL I PVI28TL Units Absolute Maximum Input Voltage 1000 VDC Maximum PV Power 15.5 per MPPT 1 19 per MPPT kW Inverter Enclosure . (3 1) (38) UL 1741/IEEE 1547, IEEE 1547.1, UL 1699B CSA C22.2#107.1, FCC part 15 B Operating Input Voltage 300-900 VDC Strike (Startup Voltage/Power) - 330VDC/30OW 1911BTU/Hr MPPT Input Voltage Range 480-800 11 500-800 VDC MPPT Trackers 2 with 4 -Fused Inputs per Zone Maximum Operating Input Current 25 per MPPT 29 per MPPT Amps (50) (58) Maximum Short Circuit Current 41 per MPPT 48 per MPPT(82) Amps (96) Table 13.3 — DC Input Specifications 13.3 Other Specifications Integrated String Combiner Option 8 String Inputs , 12-15 A (4 per MPPT) Operational Ambient Temperature _13° to 140°F (-25° to 60°C) Derating occurs above 45°C I Storage Temperature -220 to 158°F (-30° to 70°C) dBA (Decibel) Rating < 55dBA @ 3m Operating Altitude 13123ft/400m (derating from 6562ft/2000m) Inverter Enclosure Type 4 Safety Listings & Certifications UL 1741/IEEE 1547, IEEE 1547.1, UL 1699B CSA C22.2#107.1, FCC part 15 B Certification Agency CSA Weight 122lbs (55kg) BTU Rating 1911BTU/Hr Table 13.4 — Other Specifications 7"rDOCR-070365-B Page 47 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 13.4 Temperature Derating Curve Figure 13.1 shows the standard power derating curve for a PVI 23-28TL inverter. The inverter operates at full power up to 45°C and derates linearly until 60°C where it shuts down to protect itself. Po/Pn 100% 80% 60% 40% 20% 11 YF 140'F Tamb (45°C) (60°C) Figure 13.1 —Temperature Derating Curve 13.5 - Power Derating Curve Out of MPPT Zone Figure 13.2 below shows the standard derating.curve outside of the MPPT zone. Inverters derate linearly outside their rated MPPT range. Po/1 1 (480) - - - PV Voltage (V) Figure 13.2 — Power Derating Outside of MPPT Range DOCR-070365-B " " Page 48 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual 13.6 Altitude Derating Curve Po/Pn 100% 70% PVI Series Inverters 6562ft 13123ft (2000m) (4000m) Figure 13.3 – Derating at High Altitudes 13.7 Internal Circuit Diagram The basic power flow within the PVI 23-28TL series of inverters is below. Note that the GFDI circuit is not depicted. PV FiJSE DC Switcrwpn h ' Three level AC Output wt+ wt+ inverter N wt+PV1+ — PVl- -9 Pv1' PVl- w- — _ I u Figure 13.4 – Simplified Internal Circuit Diagram for PVI 23-28TL Series Inverters DOCR-070365-B Page 49 of 53 PE 1 12 W2+ �� Puz+ U Puz+ + Figure 13.4 – Simplified Internal Circuit Diagram for PVI 23-28TL Series Inverters DOCR-070365-B Page 49 of 53 PE t - PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters 14.0 Accessory Options The PVI 23-28TL comes with several options that allow the inverter to support a wide range of real life applications. 14.1 SolrenView Monitoring OPT -SRV -LCD; as discussed in Section 7.2, allows customers to purchase the only monitoring system that is designed to support PVI 23-28TL to the fullest. SolrenView can be placed inside the inverter so no external enclosure is needed. RS -485 and DC wires can be fed into SolrenView directly off of the inverter. Figure 14.1— SolrenView Monitoring Installed Inside Wiring Box 14.2 Shade Cover OPT-SHADECOVER-PVI-23-28 is specifically designed for inverters mounted at a 15 -degree tilt angle. It protects the inverter from harsh weather and direct sunlight/extremely hot temperatures while reducing thermal gain on the inverter and increasing energy production. PVEL, now part of BEW/DNV Kema, performed field testing of the shade cover temperature effects of the inverter case temperatures. The normalized data analysis showed 2-15% less temperature rise on the inverter case temperatures. Front, Back and Top temp rise was 6%, 4%, 15% lower with the Shade cover (as shown in table below). i apse 14.1— Normalized (to Measure Ambient Temperatures) Case Temperatures at Various Locations on the Inverter DOCR-070365-B Page 50 of 53 Inverterl Measurement Location Top East West Front Back Bottom Without Shade Plate [TCase/TAm/lebient] 1.98 1.53 1.71 1.54 1.47 1.26 Shade Plate on Inverterl [TCase/ TAmbient] 1.67 1.47 1.66 1.45 1.41 1.23 Percent Difference [Shade Plate -Without Shade Plate](%) -15.65 -3.36 -3.01 -6.26 -4.20 -2.34 i apse 14.1— Normalized (to Measure Ambient Temperatures) Case Temperatures at Various Locations on the Inverter DOCR-070365-B Page 50 of 53 PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters Figure 14.2 below shows an inverter installed rack mounted with the Solectria Shade cover. Figure 14.2 — Inverter With Shade Cover Installed 14.3 AC & DC Disconnect Covers OPT-DISCOCOVER-PVI-23-28 is a tamper resistant cover for the AC and DC disconnects. It is for customers that have inverters in public places so the disconnects cannot be turned while the inverter is running. 11 Figure 14.3 — Temper Proof Cover DOCR-070365-B Page 51 of 53 A I PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters .15.0 Appendices Appendix A — PVI 23-28TL Datasheet http:/Iwww.solectria.com/support/documentation/ Appendix B — String Sizing Tool http://solectria.com/support/string-sizing-tool/. Appendix C — Contact Information Solectria Renewables, LLC 360 Merrimack Street Lawrence, Massachusetts 01843 USA Tel: 978.683.9700 Fax: 978.683.9702 Sales Support: inverters@solectria.com Customer Support: service@soirectria.com Website: www.solectria.com Appendix D — Authorized Distributors Please visit: http://www.solectria.com/products/how-to-buy/`­ DOCR-070365-B C Page 52 of 53 Qin # JoA Sets City of L Quinto o�tc Building 8t Safety Division 78-495 Calle Tampico La Quinta, CA 92253 - (760) 777-7012 Building Permit Application and Tracking Sheet Permit # .135o Q4 Project Ad dress: Owner's Name: -TA76.:77,C_pc� A. P. Number:, A —QPO 0 ` ^F, Gq3-baa•623= — Address: 3 Se 71 i Legal Descnptio==t'a4e_Y rrz o 03 gookao5 Ci , ST, Zip: {� t ✓ C Usjva oP �qrQ'�( VI'1Gi , I`aco 'ue/SI Contrac of o� — u T h n 3 el o e. 3 Address: aQ S v �� Q ��` 13L Project Description:-eV{`S15in5 r , City, ST, Zip: Say. 0-1 eVa e 06 G a-V� r"l� atLow TePo . le h ne• bD 7 -2- 1-6 5 8 State Lic. # : 3 01 L b D City Lic. #•: Arch., Engr., Designer: ��C5A4S &?_o ^ Address: 31ko l City., ST, Zip: Tele h ne:�q I_ ....... � Construction on TY Pe:Occupancy: Lic. _ -type (circle one • New Add'n Alter Repairai r Demo of Contact Person: SqF.: #Stories: its:Name Telephone # of Contact Person: — — Estimated Value of Project I ao APPLICANT: DO NOT WRITE BELOW THIS LINE # Sub..1 Req'd Rec'd TRACT014G PERMIT FEES Plan Sets Plan Check submitted It Amount Structural Cafes. Reviewed, ready for corrections Plan Check Depos' Truss Calcs. Called Contact Person Plan C Balance Title 24 Calcs. ns picked up onstruction Flood plain plan Plans resu ted Mechanical Grading plan 2°" Review, readyfor co clions/i a Electrical Subcontactor List Called Contact Person Plumbing Grant Deed Plans picked u S.M.I. Ii.O.A.'Approval Pla esubmitted rading IN IIOUSE:- '"! Review, ready for correctionsfissue Devel cr Impact Fee Planning Approval Called Contact Person A.I.P.P. Pub. Wks. Appr Date of permit issue School Fees, Total Permit Fees 8121acNo - aDF%1,.e SIM n4.e� 60.�� to or•�ea!t, t��r�+„�.�� CORE STATES .�3MMU ewia4� CORE STATES GROUP 3401 Centre lake Drive, Suite 430 Ontario, CA 91761 Ph: 909.467.8907. FX: 909.467.8917 Narrative of Changes June 9, 2016 This letter shall become a part of the contract documents and supersedes any conflicting information on the previously issued contract documents. PROJECT: Target PV System T#1867 78-935 US HWY 111, LA QUINTA, CA 92253 TO: AJ ORTEGA EsGil Corporation 78-495 CALLE TAMPICO LA QUINTA, CALIFORNIA 92253 Plan Check Number:,BSQL2015-0083 We have revised our plans for the above referenced project in response to client changes in design and offer the . following narrative: Cover Sheet 1. The following information has been added to the Cover Sheet. Building Information Scope of Work System Information Utility'lnformation Sheet PV -1 Detail 1 Three Line Power Riser Diagram 1. Added four additional inverters. 2. Split Combiner panel from one to two panelboards, now to be roof mounted. 3. Removed C/T cabinet and relocated all monitoring C/T's to load side of the AC Disconnect. 4. Increased interconnect point of connection from 450 Amps to 700 Amps. 5. Changed solar module make/model from TRINA SOLAR TSM-PD14 to PHONO 31OW and PS310P-24/TV. 6. Changed inverter make/model from SOLECTRIA PVI 28TL to SMA 30000TL-US. Riser Diagram Notes 7. Removed notes 17 per removal of Rec Monitor and revisedper new design criteria. Solar PV Notes 8. Notes have been revised per new.design criteria. Solar Grounding Notes 9. Notes have been removed per new grounding detail and new design criteria. Inverter Information 10. Information has been changed per new.design criteria. Solar PV Equipment Schedule 11. Information has been changed per new design criteria. Sheet PV -2 Detail 1 Solar PV Partial Site Plan 1. Removed C/T Cabinet, Rec Meter, PV Distribution Panel, Trough; and two Bollards per new design criteria. Detail 2 Solar PV Profile View of Wall 2. Removed C/T Cabinet, Rec Meter, PV Distribution Panel, and Trough per new design,criteria. Site Plan and View Key Notes 3.. Removed notes 2, 3, 5, and 6 per new design criteria. 4. Revised number of note 4 to' note 2. 5. Revised number of note 7 to note 3. c► Sheet PV -3 1. The following information has been removed from PV -3. General Notes PV String Conductors Per Flexible Conduit Schedule Cable Tray Conductor Size Schedule Detail .1 Solar PV Overall Roof Plan 2. Revised.PV system size, number of PV modules and number of inverters per new Client direction. 3. Removed cable tray design and added roof mounted combiner panels with conduit system per new Client direction. 4. Added Parapet Height. PV System Work Notes 5. . Removed note.9 per new design criteria. 6. Revised number of not 5 to 6 and revised note. 7. Revised number of not 7 to 8 and revised note. 8. Revised number of not 8 to 9 and revised note. 9. Added notes 10 thru 15 per new design criteria. Sheet PV -8 1. Revised detail 1 (Transition. from Roof Down Exterior Wall) per new design criteria. 2. Revised detail 2 (Transition from Roof Down Exterior Wall) per new design criteria. 3. Detail 3.(Transition From Cable Tray to Conduit - Without Parapet), changed to (Wire Management For Use with SMA Ready -Rack System). 4. Detail 4 (Field Installed MC4 Type Conductor Mounting Location), changed to (Not Used). 5. Detail 5 (Solectria PVI 23TL - Two MPPT (Maximum Power Point Tracker)), changed to (Grounding Detail). . 6. Detail 6 (Solectria PVI 28TL - One MPPT (Maximum Power Point Tracker), has been removed per new design criteria. Sheet PV -9 1. Revised detail 1 (Weather Station Mounting.Detail).per new design *criteria. 2. Detail 2 (Cable Tray Detail), changed to (MC4 Type Connector Mounting Location with String Label). 3. Detail 3 (Cable Tray Over Obstacle Detail), changed to (Conduit Jumper for String Feeders). 4.. Detail (Shading Orientation Prevention Detail), revised per new design criteria. 5. Detail 5 (Conduit Jumper for.String Feeders), changed to (Bollard Detail). 6. Detail 6 (Typical 3 Line Rec Wiring Schematic), changed to (North/South String Wiring Management Detail (PanelClaw Polarbear III Racking System Only)). 7. Detail 7 (Bollard Detail), changed to (AC Combiner Panelboard Mount Detail). 8. Details 8 and 9 have been removed per new design criteria. Sheet PV -10 1. Revised figure 1 (AC Disconnect) per new design criteria. 2. Revised figure.2 (Typical Inverter) per new design criteria. 3'. Revised figure 3 (Typical Switchgear) per new design criteria. 4: Removed figure 5 (PV Combiner Panel Board). 5. .Revised figure 5 (Typical Run of Cable Tray) per new design criteria. . 6. Revised detail 1 (AC Solar Disconnect Sign) per new design criteria. 7. Revised detail 2 (Main Service DisconnecfSign) per new design criteria: 8. Revised detail 3 (AC Electrical Shock Hazard Sign) per new design criteria. 9. Revised number of detail 5 (Electrical Power Source Directory) to detail 10. 10. Detail (Rapid Shutdown Label) assigned designation detail 5. 11. Revised calculations in details 6 and 11 per system changes. 12. Revised detail 8'(Photovoltaic Disconnect Sign) per new design criteria. 13. Detail 9 (DC Disconnect Inverter Plaque), changed to (Not Used). 14. Revised detail 13 (Building Front Sign) per new design criteria. 15. Detail 15 (Solar PV Equipment Location Placard), changed to (Site Map Sign). Thank you for taking the time to review our latest submission. Should you have any questions, please contact Skyler Tennis at 479-877-3498. Respectfully submitted, John Ferguson, P.E. U ti PVI 23TL & PVI 28TL Installation and Operation Manual PVI Series Inverters Appendix E.— UL 1741 / UL 1699B/ IEEE 1547 / CSA 22.2#107.1 Authorization to Mark SP CSA Group Certificate of Compliance Certificate: '2665124 Vaster Contract: 259363 Project: 2716241 Date Issued: April 1, 2014 Issued to:' Solecria Renewables,LLC. 360 Mtarrimack St.Bldg 9, Lawrence,. %IA,018J3. USA :attention: JIr. James Worden The products listed below are eligible to bear lite CSA Mark shown with adjacent indicators 'C' and 'US' for Canada and US or with adjacent indicator 'US' for US only or without either indicator for Canada onl). jCP®CUS Issued b3: Kyle Song PRODUCTS CL,kSS 531109 - POWER SUPPLIES - Distributed Generation Power Systems Equipment CUSS 531189 - POWER SUPPLIES - Distributed Generation Power Systems Equipment - Certified to U.S. Standards Utility Interactive Inverter, Model PVI 23TL480 and PVI 28TL4S0, permanently connected - For details related to rating size. configuration, etc., reference should be made to the CSA Certification Record,Certificate of Compliance Annex A, or the Descriptive Report. APPLICABLE REQ1iIRE:i111TS CSA -C -22.21 -Mo. 107.1-01- General Use Power Supplies *UL Std. No. 1741 -Second Edition - Inverters, Converters. Controllers and Interconnection System Equipment for Use With Distributed Energy Resources(7anuary 2S. 2010) UL 1699B - Outline of Investigation for Photovoltaic. (PV) DC Arc -Fault Circuit Protection (Issue \umber 2. January 14; 2013) DOCR-070365-B _ ' "" Page 53 of 53