Tigo EI Installation Manual

Residential solar solution

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Tigo EI

Residential Solar Solution

US Installation Manual (w/ATS 200A)

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Page 1 Tigo EI Residential Solar Solution US Installation Manual (w/ATS 200A) Visit the Tigo Energy Help Center for comprehensive videos, articles, and other resources for all Tigo products.
Page 2 ENTIRE OBLIGATION OF TIGO. THE CONTENTS OF THIS DOCUMENT SHALL NOT BECOME PART OF, OR MODIFY ANY CONTRACT BETWEEN, THE PARTIES. In no event will Tigo be responsible to the purchaser or user in contract, in tort (including negligence), strict liability or otherwise for any special, indirect, incidental, exemplary, reliance...
Page 3: Table Of Contents
Power Connections ........................14 Grounding Points ........................14 Wiring ............................ 15 E-Stop Switch for Rapid Shutdown ....................19 The EI Automatic Transfer Switch (ATS) ..................21 Box Contents ..........................21 Enclosure Overview ........................22 Mounting ........................... 23 Wiring ............................24 Load Connections ........................
Page 4 Add Batteries ..........................41 Status Indicators ........................45 Forced Start/Shutdown ....................... 46 TAP and TS4 MLPE ........................47 Install the Tigo Access Point (TAP) ....................47 Install TS4 MLPE ........................50 Commissioning ..........................52 Check Connections ........................52 Power On the System ......................... 52 Run the Tigo Energy Intelligence App ..................
Page 5 Customer Support .......................... 67 Appendix A – UL 1741 PCS CRD Section 208 Information ..............68 Integrations ..........................68 Time of Use ..........................69 Self-Consumption ........................70 Backup ............................70 Zero Export ..........................71 Appendix B – Configuring HECO Requirements ................72...
Page 6: Overview
It’s built with the following components: 1. EI Inverter – A 7.6kW or 11.4kW hybrid inverter may be installed grid-tied only or as part of an energy storage system (ESS) when paired with up to four Tigo EI batteries.
Page 7: This Manual
Downloads page. Safety The EI system must be installed and maintained only by qualified personnel in accordance with applicable electrical codes. The inverter DC disconnect switch must be OFF for five minutes before opening the inverter cover.
Page 8 Risk of electrical shock. Risk of burns. Check the operating instructions. Caution, the inverter may retain high voltage for up to five minutes after disconnection. Avoid tampering. Observe caution. Grounding connection. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 9: Pre-Installation
Pre-Installation – Location Pre-Installation Location EI enclosures are NEMA 4/IP65 rated for indoor and outdoor exposure. To optimize performance and extend service, locate the enclosures: In a well-ventilated, easily accessible location. • ° • On a flat surface against a solid wall with ≤15 tilt.
Page 10: Wiring Overview
Pre-Installation – Wiring Overview Wiring Overview The EI system can operate on 208 or 240V at 60Hz. For detailed wiring instructions, refer to the following Inverter, ATS, TAP and TS4 MLPE, and EI Battery sections. Inverter Power Connections ATS Power Connections EI Residential Solar Solution US Installation Manual | www.tigoenergy.com...
Page 11: Battery Power Connections
Pre-Installation – Wiring Overview Battery Power Connections EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 12: The Ei Inverter
• Mounting Communications Connections • Power Connections • • Rapid Shutdown – E-Stop Switch For detailed specifications, download the EI Inverter data sheet from the tigoenergy.com Downloads page. Box Contents The EI Inverter box includes: EI Inverter • • Quick Start Guide •...
Page 13: Dc Disconnect And Enclosure Knockouts
The EI Inverter – Enclosure Overview DC Disconnect and Enclosure Knockouts Status Indicators The status indicator LEDs in the center of the inverter front panel show the EI system’s current operating conditions. Symbol Action Description Continuous Feed in grid Flashing 3s on/1s off...
Page 14: Mounting
1. Choose a location on a plumb wall with adequate clearance, free from direct sun and precipitation. 2. Affix the inverter top bracket using screws appropriate for the wall surface. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 15: Communications Connections
3. Hang the inverter on the bracket and affix the bottom bracket. Communications Connections You must make communications connections to the TAP (if used), ATS, and battery for the EI system to operate as an energy storage system (ESS). Inverter communications connections include: •...
Page 16 (4-wire or CAT5/6). 3. At the inverter, terminate the wires at the 4-pin TAP plug from bottom to top: –, +, Data B, Data A. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 17 A two-wire 18–20 AWG 12V DC cable • A two-wire RS-485 cable 2. Locate the 2-pin, 3-pin, and 6-pin plugs included in the EI Inverter and EI ATS box Accessories bags. The 2-pin plug is not included with models lacking a 2-pin socket.
Page 18 CAT5/6 cable into the terminal. 2. At the inverter, plug the cable into the battery COM terminal. Battery Inverter To connect COM cables to multiple batteries, refer to the EI Battery section. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 19: Power Connections
The EI Inverter – Power Connections Power Connections Ensure the inverter DC disconnect switch is OFF before making connections. Grounding Points Equipment grounding conductor (EGC): Grounding electrode conductor (GEC): EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 20: Wiring
AC (grid or ATS): 8 – 6 AWG • • DC (PV): 12 – 8 AWG • DC (battery): 12 – 8 AWG Always calculate conductor AWG based on wire length and current load. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 21 11.4kW inverter: 60A 2-pole breaker ATS INV1 3. If connecting to the ATS, route conductors through the knockout. INV L1 4. Connect conductors to the terminals and the ground bar. Inverter EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 22 Neither positive nor negative conductors can be grounded. 2. Connect conductors to the inverter: • 3.8kW (2 MPPT) EI Inverter: up to two strings • 7.6kW (3 MPPT) EI Inverter: up to three strings 11.4kW (4 MPPT) EI Inverter: up to four strings •...
Page 23 BAT+ BAT– terminals. BAT+ BAT– 2. Connect the conductors to the inverter terminals. Battery Inverter For details on how to add more batteries, refer to the EI Battery section. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 24: E-Stop Switch For Rapid Shutdown
A manual rapid shutdown switch is optional. • If grid power fails in a system that uses a battery, PV output is unaffected, and the EI solution disconnects any PV or battery power to the grid. A manual rapid shutdown switch is mandatory.
Page 25 The EI Inverter – E-Stop Switch for Rapid Shutdown To connect a switch to multiple inverters, daisy-chain two 20 – 18 AWG wires to connect EI Inverter E-Stop switch terminals to the E-Stop switch. Inverter Inverter Inverter E-Stop Switch EI Residential Solar Solution US Installation Manual | www.tigoenergy.com...
Page 26: The Ei Automatic Transfer Switch (Ats)
The EI Automatic Transfer Switch (ATS) – Box Contents The EI Automatic Transfer Switch (ATS) This section includes: Box Contents • • Enclosure Overview • Mounting Wiring • Service Disconnect Lock • • Manual Bypass • Status Indicators For detailed specifications, download the ATS data sheet from the tigoenergy.com Downloads page.
Page 27: Enclosure Overview
The EI Automatic Transfer Switch (ATS) – Enclosure Overview Enclosure Overview EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 28: Mounting
The EI Automatic Transfer Switch (ATS) – Mounting Mounting To mount the ATS: 1. Choose a location on a plumb wall with greater than 12in clearance and free from direct sun and precipitation. 2. Use screws appropriate for the wall surface to affix the bracket, hang the ATS, and secure it with an M5 screw.
Page 29: Wiring
The EI Automatic Transfer Switch (ATS) – Wiring Wiring The ATS connects to the grid, loads, and inverter and, if installed, a generator (TSS-200A-US-G only). A whole-home backup configuration: A partial-home backup configuration: EI Residential Solar Solution US Installation Manual | www.tigoenergy.com...
Page 30: Load Connections
The EI Automatic Transfer Switch (ATS) – Wiring Conductors must be ferruled copper, 90°C rated, non-fine stranded: ATS AC to load/grid: 1/0 – 4/0 AWG • • ATS AC to inverter: 8 – 6 AWG • ATS AC to generator starter battery charger (TSS-200A-US-G only): 12 – 10 AWG ATS AC to generator (TSS-200A-US-G only): 4 –...
Page 31: Grid Connections
The EI Automatic Transfer Switch (ATS) – Wiring Grid Connections This connection carries power between the utility grid and the ATS. Direct connection to utility feeders or a line side may require coordination with the local utility. To connect the ATS to the service entrance (whole-home backup) or main panel (partial-home backup): 1.
Page 32: Inverter Connections
A two-wire 18–20 AWG 12V DC cable • A two-wire RS-485 cable 2. Locate the 2-pin, 3-pin, and 6-pin plugs included in the EI Inverter and EI ATS box Accessory bags. The 2-pin plug is not included with all models.
Page 33 The EI Automatic Transfer Switch (ATS) – Wiring 8. Install the plug. Inverter GRID To connect to the inverter terminals: 1. At the ATS, connect conductors to the terminals and the neutral and ground busbars. 2. At the inverter, connect conductors to the terminals and the ground busbar.
Page 34: Generator Connections (Tsi-200-Us-G Only)
The EI Automatic Transfer Switch (ATS) – Wiring Generator Connections (TSI-200-US-G only) The ATS can connect to a generator that meets these requirements: Pure sine wave output • A two-wire start signal circuit • • Minimum capacity equal to inverter wattage; maximum capacity 24,000kW.
Page 35 The EI Automatic Transfer Switch (ATS) – Wiring To connect the ATS to a generator’s starter battery charger, connect three 12 – 10 AWG conductors to the ATS generator maintenance breaker and neutral and ground busbars. To connect the ATS to generator power output, connect four 4 – 1/0 AWG conductors to the ATS generator neutral and ground busbars and L1/L2 terminals.
Page 36: Service Disconnect Lock
The EI Automatic Transfer Switch (ATS) – Service Disconnect Lock Service Disconnect Lock Accessories To install the lock plate and screw (located in the ATS bag) on the 200A service disconnect, pull back or cut the label to reveal the lock plate screw hole and attach the plate.
Page 37 The EI Automatic Transfer Switch (ATS) – Manual Bypass Switch To manually bypass the ATS: 1. At the main service panel, turn the 2-pole breaker that connects the grid to the ATS to OFF. 2. Turn the inverter and battery DC disconnects to OFF.
Page 38: Reverse The Bypass Procedure
The EI Automatic Transfer Switch (ATS) – Reverse the Bypass Procedure 10. At the main service panel, turn the 2-pole breaker that connects the grid to the ATS to 11. Ensure the E-Stop rapid shutdown button is open (not depressed).
Page 39: Status Indicators
The EI Automatic Transfer Switch (ATS) – Status Indicators Status Indicators The status indicator LEDs on the front panel of the ATS show current operating conditions. Symbol Action Description Continuous Grid power on Grid Grid power off Continuous Operating normally Communications Flashing .5s on/.5s off...
Page 40: The Ei Battery
The EI Battery – Box Contents The EI Battery An EI system may include one, two, or four battery enclosures. This section includes: Box Contents • • Enclosure Overview • Place and Prepare Connect to the Inverter • Add Batteries •...
Page 41: Place And Prepare
2. If mounting against a wall, affix the two side tabs. 3. Remove the front panel screws and two locking clips behind the base cover and open the enclosure. 4. Detach the display and ground cables. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 42 9. In the lower section, connect the loose cable to the inner Link Out Link In (back) module terminal and the outer (front) module terminal. 10. Connect the other cables according to their labels. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 43: Connect To The Inverter
The EI Battery – Connect to the Inverter CAN/COM 11. Insert an RJ45 terminator in the port located in the battery expansion wirebox on the enclosure right side. Connect to the Inverter To connect battery power conductors to the inverter: 1.
Page 44 The EI Battery – Connect to the Inverter BAT+ BAT– 2. Connect the conductors to the inverter terminals. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 45 The EI Battery – Connect to the Inverter To connect the battery COM cable to the inverter: COM INV 1. In the battery inverter connection wirebox, plug the COM cable into the port. 2. Plug the cable into the inverter battery port.
Page 46: Add Batteries
To add one battery in parallel: 1. In the battery expansion wireboxes, connect an RJ45 (CAT5/6 T586B) cable from the COM Parallel COM Parallel battery #1 plug to the battery #2 plug. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 47 2. Connect two ≤2.5m (7’8”) conductors between the battery #2 BAT+ and BAT– terminals and the inverter BAT terminals. 12. In the battery expansion wireboxes, connect a terminator to each CAN/COM terminal. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 48 5. In the battery expansion wireboxes, connect power conductors between the BAT– terminals on batteries #2 and #4. 6. In the battery expansion wireboxes, connect terminators to CAN/COM terminals on batteries #3 and #4. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 49 The EI Battery – Add Batteries To add one battery with a serial connection (EI Battery part number 603-00000- only): 1. Inside the battery enclosures, connect a COM cable from the battery #1 lower outer COM Link Out COM Link In...
Page 50: Status Indicators
≤75% – 1, 2 on, 3 flashes; 4 off ≤75% – 1, 2, 3 on; 4 off ≥75% – 1, 2, 3 on; 4 flashes ≥75% – 1, 2, 3, 4 on EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 51: Forced Start/Shutdown
The leaf status indicator starts flashing green (.1s on/.1s off). 3. To force a shutdown, press the power button for 10s. The leaf status indicator starts flashing red (.1s on/.1s off). 4. Reinstall the cover. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 52: Tap And Ts4 Mlpe
TAP and TS4 MLPE – Install the Tigo Access Point (TAP) TAP and TS4 MLPE Install the Tigo Access Point (TAP) Installations equipped with TS4-A-O/S MLPE require a wired TAP connection to the inverter. A TAP wirelessly communicates with TS4 devices to gather data and perform rapid shutdowns.
Page 53 TAP and TS4 MLPE – Install the Tigo Access Point (TAP) To install a TAP: 4. Prepare a 4-wire or CAT5/6 cable: Shielded if running next to PV conductors • 20 – 18 AWG or CAT5/6 twisted pairs • •...
Page 54 TAP and TS4 MLPE – Install the Tigo Access Point (TAP) 8. Run the CAT5/6 cable through the inverter left COM knockout and connect to the 4-pin connector. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 55: Install Ts4 Mlpe
TAP and TS4 MLPE – Install TS4 MLPE Install TS4 MLPE To install TS4 devices and map them for the Tigo Energy Intelligence app: 1. Attach a TS4 device to a PV module frame using the silver clips. If using frameless modules, remove the clips and bolt the TS4 directly to the PV rail with M8 bolts.
Page 56 2. Remove the barcode sticker on the TS4 and place it on the PV array map located at the end of the EI Inverter Quick Start Guide. Ensure the sticker matches the physical location of the module on the roof.
Page 57: Commissioning
4. If the inverter does not start, force-start the battery by removing the start button cover and pressing until the green leaf status LED flashes rapidly. 5. Ensure Bluetooth is enabled on your mobile device, open the Tigo EI app, and tap + to create a new system.
Page 58: Run The Tigo Energy Intelligence App
Scan one of these QR codes to download the app. To run the Tigo EI app and commission the system, first ensure Bluetooth is enabled on your mobile device. Do not try to select your system using your mobile device’s Bluetooth settings. The EI app will automatically connect to your system.
Page 59: Select Equipment
The first component discovered is the EI Inverter or, in some cases, the Cloud Connect Advanced (CCA) component. 3. After a component is discovered or entered manually, tap EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 60 Grid 7. Tap Inverter Settings, select the Code Advanced Options, , configure Save AC Meter, Battery Settings Main Breaker Limit 8. Configure , and options as needed. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 61 You may scan bar codes located on enclosures or on boxes. PV Modules 11. Tap the back arrow and tap to set up the PV array and Tigo TS4 devices. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 62 14. Repeat these steps for as many strings as needed and tap 15. Review your entries and tap the back arrow. 16. Check your system information at any time by tapping the three-dot icon and Real-Time Data selecting EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 63: Configure Layout
You may also configure layout using a large monitor via the EI portal. Click Tigo EI Login at www.tigoenergy.com and use your EI app credentials. However, you can only complete commissioning using the mobile app. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com...
Page 64 Arrange the modules carefully to reflect their actual • layout on a roof or field. Tap a module to change its portrait/landscape orientation. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 65 If, during installation, you affixed barcode/QR code stickers from each TS4 to the • array map included in the EI Inverter Quick Start Guide, you may use the Bulk Scan method. You may scan each TS4 barcode/QR code with your smartphone.
Page 66 8. Verify that all modules are oriented consistently – portrait or landscape. Tap a module repeatedly to alternate orientation. 9. Tap the back arrow to return to the commissioning screen. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 67: Configure Communication
System Access 1. Tap to set access permissions. 2. Tap the Add icon to enter data for whoever will be accessing the system such as the installer and system owner. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 68: Reference
• Warranty Error Codes Select Equipment > Inverters > View To view error codes, open the EI app and navigate to the Details> Configure Inverter Details Connect screen and tap Shut down the system before checking PV module or system wiring.
Page 69: Inverter Fault Codes
DSP and M3 firmware. 3. Change the DSP or M3 board. The data sampled by the DSP and redundant Restart the inverter. M3 are not the same. GFCI fault Restart the inverter. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 70: System Fault Codes
3. Verify grid frequency is within allowable tolerance (59.3 to 60.8 Hz). 4. Restart the inverter. Auto test failed The EI Inverter initial auto test 1. Restart the inverter. has failed. 2. Repeat auto test. 3. Check all connections and wiring.
Page 71: Decommissioning
Maintain proper clearances around all enclosures to ensure proper air circulation. • Check enclosures quarterly and remove any insects and rodent nests. Specifications Download comprehensive specifications for all Tigo products from the Tigoenergy.com Downloads (www.tigoenergy.com/downloads) page. Warranty Download comprehensive warranty information from the Tigoenergy.com Downloads (www.tigoenergy.com/downloads) page.
Page 72: Customer Support
When you contact Tigo support for installation or operational assistance: • If the system is commissioned and connected to the internet, Tigo will have component- level data to help understand and resolve the issue. If you have not yet commissioned the system, you’ll need to know your System ID as •...
Page 73: Appendix A - Ul 1741 Pcs Crd Section 208 Information
Appendix A – UL 1741 PCS CRD Section 208 Information – Integrations Appendix A – UL 1741 PCS CRD Section 208 Information The major system elements making up the Tigo power control system (PCS) include: A hybrid inverter: TSI-3.8K-US, TSI-7.6K-US, or TSI-11.4K-US •...
Page 74: Time Of Use
2. Adjust the sliders to set when utility rates are highest, when the battery can be charged from the grid, and a desired battery reserve during peak periods (how much energy to save in case of grid failure). EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 75: Self-Consumption
This mode controls the battery reserve to enable maximizing backup energy in case of an outage. Backup To configure settings: Energy/Battery Management > System Behavior > Backup 1. Select Backup 2. Tap the control. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 76: Zero Export
Edit System > Select Equipment > Inverter > View Details > Connect > Inverter 1. Select Settings > Grid Code > Advanced Options > AC Meter Export Power Allowed 2. Toggle off the setting. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...
Page 77: Appendix B - Configuring Heco Requirements
Settings > Edit System > Select Equipment > Inverter > View Details > Connect 2. Select > Inverter Settings > Grid Code > Advanced Options > AC Meter Export Power Allowed 3. Toggle off the setting. EI Residential Solar Solution US Installation Manual | www.tigoenergy.com Help Center...

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