Tigo EI User manual

EI Residential Solar Solution
Quick Start Guide – EI Inverter
• All components must be installed and maintained
by qualied personnel in accordance with applicable
electrical codes.
• Always wear appropriate PPE and use insulated tools.
• Improper installation may cause damage not covered
by the warranty.
Locate all EI enclosures:
• In a well-ventilated, easily accessible location.
• On a at surface against a solid wall without tilt.
• Away from antennas and electromechanical interference.
• Sheltered from direct sunlight and precipitation with
ambient temperature <50°C.
• Above potential ooding.
Enclosure Mounting
Inverter Bottom Panel
DC disconnect PV Battery ATS/Grid
WiFi antenna
E-Stop/TAP ATS/BAT
Cell antenna
Equipment grounding conductor (EGC) busbar:
Inverter Grounding Points Enclosure grounding conductors: 10 – 8 AWG
Grounding electrode conductor (GEC) terminal:
Use this guide in conjunction with the Quick Start Guides (QSG) included with the Tigo EI ATS, EI Battery, and TS4s. Detailed
installation documentation for all Tigo products is available at www.tigoenergy.com/Downloads.
Order of Installation
Install an EI system in this order:
1. Install TS4s and the Tigo Access Point (TAP) anytime
before wiring the inverter.
2. Mount the ATS and connect it to the grid. To enable
household power pending commissioning, use the ATS
manual bypass feature described in the ATS QSG.
3. Mount the inverter and E-Stop rapid shutdown switch.
4. Place the battery.
5. Wire communications and power connections.
You must install communications connections.
6. Connect an antenna.
7. Commission the system.
Communication Connections
Battery – Inverter Inverter – ATS
RS-485
TAP – Inverter For TS4-A-O/S/M
CAT 5/6 RS-485/
CAT 5/6
Use 2- and 3-pin plugs from the Accessories bag.
If the left-most 2-pin socket is absent, disregard
the 12V connection to ATS CN9 pins.
©20230504 Tigo Energy, Inc. 002-00119-00 Rev. 3.0 *002-00119-00*

E-Stop Rapid Shutdown Switch
Inverter E-Stop Switch
Required if using a battery.
Mount the E-Stop switch within a few feet
of the inverter or service entrance outside
the residence. It must be clearly visible
and accessible to rst responders and
maintenance workers.
Ax the rapid shutdown label within 3ft of
the E-Stop switch.
20 – 18
AWG
Commissioning
Inverter System Status Indicators
Power Connections Use copper, non-stranded wire with ferrules.
EI Battery EI Inverter ATS Torque AC terminals to 22.5Nm.
Tigo Energy, Inc.
655 Campbell Technology Pkwy.
Campbell, CA 95008
[phone]
www.tigoenergy.com
Symbol Action Description
Power
Continuous Feed in grid
Flashing
.3s on/1s o
1s on/3s o
.5s on/.5s o
2s on/2s o
DC on/AC o
DC o/AC on
Checking
Standby mode
O Disconnected
Communications
Continuous 4G/WiFi, local WiFi ok
Flashing
.5s on/.5s o
1s on/1s o
1s on/3s o
Local WiFi connecting
4G/WiFi failure, local WiFi ok
Local WiFi failure, 4G/WiFi ok
O Failure
Battery
Continuous Operating normally
Flashing
1s on/3s o
.5s on/.5s o
Low charge state
Fault detected
O Disconnected
Fault
Continuous
with audible alarm
Fault
Arc fault
Flashing
1s on/1s o Warning
O No faults detected
EI Residential Solar Solution
Quick Start Guide – EI Inverter
To PV array
12 – 8 AWG
12 – 8 AWG
To load panel
8 – 6 AWG to double-pole breaker:
3.8kW: 20A/7.6kW: 40A/11.4kW: 60A
L1 L2
To grid
1/0 – 4/0 AWG
L1 L2
8 – 6 AWG
Inverter
ATS
G G
N N
G
N
L2L1
PV+
BAT
12 3 4 1 2 3 4+–
PV– L1 L2N
Commission the system after double-checking all connections and
installing the Tigo EI mobile app.
1. Turn ATS breakers and the inverter and battery DC disconnects to
ON.
2. Turn on disconnects/breakers between the grid and the ATS.
3. Ensure the E-Stop shutdown button is not engaged.
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
ashes rapidly.
5. Ensure Bluetooth is enabled on your mobile device, open the Tigo
EI app, and tap + to create a new system.
6. Open Select Equipment , tap Scan , and select EI Inverter .
7. Complete the commissioning process in the Tigo EI app. For
detailed instructions, visit the tigoenergy.com Help Center.
To battery
12 – 8 AWG
To ATS
12 – 8 AWG

TS4 Map Place TS4-A-O/S barcode/QR stickers in the grid below per the system azimuth and layout for scanning into the EI app. For example:
EI Residential Solar Solution
Quick Start Guide – EI Inverter
©20230504 Tigo Energy, Inc. 002-00119-00 Rev. 3.0 *002-00119-00*

TS4 Map Place TS4-A-O/S barcode/QR stickers in the grid below per the system azimuth and layout for scanning into the EI app. For example:
EI Residential Solar Solution
Quick Start Guide – EI Inverter