
EI Inverter
!
1. General Information - Specications
2. Installation
ATTENTION - READ FIRST
!CAUTION - Use appropriate hardware for
the mounting surface !CAUTION - Check that all Disconnect switches are OFF
before wiring. For personal safety, do not operate with
electricity and always wear appropriate PPE.
1.1 Package Contents
1.3 EI Inverter Overview
1. Front panel
2. LED indicators
3. Wiring box cover
4. DC disconnect switch
5. PV input
6. Battery input
7. WiFi antenna port
8. Cellular antenna port
9. TAP /M et er /R SD input
10. Battery com input
11. Backup output
12. AC grid output
13. External Grounding point
14. Moun ti ng b rac ke t
15 . He at s in k
1 2 3 567 9 10 11 12 13 14 15
8
4
2.1 Installation requirements
1.2 AC Wiring Diagram
2.3 Mounting
3.1 Wire schedule/preparation
2.2 Prepare conduit openings
3.2 Connections
3.3 Inverter output connection - GRID
3.4 Backup output connection - Battery systems only
L2 L1 L1 N L2
Backup Grid
L2 L1 L1 N L2
Backup Grid
Inverter Model Over current rating
TSI-7.6K-US 40A (bi-directional)
TSI-11.4K-US 60A (bi-directional)
1 . Determine which inputs/ports will need to be opened 2. Remove wire box cover (3)
using 3/16” (5mm) screwdriver
3. With a hole saw, CAREFULLY
open the conduit drill guide for the
necessary openings.
Quick Start Guide - TSI-7.6/11.4K-US
Pg 1 of 4
Item Quantity
EI Inverter 1
Quick Start Guide 1
Mounting Bracket 1
Tigo Access Point (TAP) 1
Rapid Shutdown label 1
E-stop button 1
DC wire ferrules 7.6kW: 16
11.4kW: 20
AC wire ferrules 5
RS485 3-pin connector (meter) 1
Grounding ring terminal 1
Hex-head Self tapping screws (inverter
mounting) 5
Philips-head screw (E-stop mounting) 4
White wall anchors (inverter) 5
Green wall anchors (e-stop) 4
WiFi antenna 1
Cellular antenna (only in cell-enabled models) 1
¾” conduit hole plug, with nut 1
1” conduit hole plug 2
1” conduit hole plug nut 2
Item W (inch/mm) H (inch/mm) D (inch/mm)
TSI-7.6K-US 15.75/400 22.4/570 7/170
TSI-11.4K-US 15.75/400 25.2/638 7.4/187
Use Type Size
Equipment Grounding Conductors Yellow-green jacketed or solid bare copper 10 - 8 AWG
AC output conductors
(BACKUP/GRID) Multi-color jacket, copper 8 - 6 AWG
PV Input conductors Red/Black Photovoltaic Wire (ex: PV1-F) 10 - 8 AWG
Battery input conductors Red/Black Photovoltaic Wire (ex: PV1-F) 12 - 8 AWG
≤15°
≥12”≥12”
≥12”
≥12”
≥12”
References in
Guides
Label on
Inverter
# on
diagram Drill / if installing
PV input DC (left side) 5 Yes
Battery input DC (right side) 6 Yes / battery
Comm COM (left side) 9 Yes / TAP or meter
Comm COM (right side) 10 Yes / battery
Backup output AC (left side) 11 Yes / ATS
AC grid output AC (right side) 12 Yes
3. Electrical Connections
NG
Inv Grid Inv
L1 L1 L2 L2
Backup
Panel
L1 N L2
ATS
Input
Inv Grid Inv
L1 L1 L2 L2
Backup
Panel
L1 N L2
ATS
Input
EI Inverter
ATS
L2 L1
ACGrid
L1 N L2
EGC
EI Inverter
ATS
L2 L1
ACGrid
L1 N L2
EGC
CT L1 CT L2
+
ACGrid
L1 N L2
EnergyMeter
-+ -
CT L1 CT L2
+
ACGrid
L1 N L2
EnergyMeter
-+ -
N
G
Grid
Meter
Grid
Meter
Backup Panel
Main Panel
1. This document is for quick guidance only. For details, please refer to the Energy Intelligence (EI) Inverter Installation & Operations Manual.
2. Damage caused by failure to follow the contents of the EI Inverter Installation & Operations Manual is not covered by the warranty.
3. Before installing the system, check that the package contents are intact and complete against the packing list. If any damage is found or any component is
missing, contact your dealer.
1. Do NOT install the EI inverter in the direct sun, rain or
snow
2. If installing more than one inverter, refer to the EI Inverter
Installation & Operations Manual for clearances
1. To prepare the DC conductors (PV+, PV- and BAT), strip 5/8”/16mm of the DC connector’s
jacket and crimp on the DC wire ferrule.
2. To prepare the AC conductors (GRID and BACKUP), strip 0.7”/18mm of the AC conductor’s
jacket and crimp on the AC wire ferrule.
3.2.1 Pressure Terminals
1. Insert 1/8” at blade screwdriver in the terminal
at a right angle to the terminal face. Press the
clamp open by tilting down.
2. Insert conductor into the terminal’s round
opening.
3. Remove screwdriver to release the clamp and
secure the conductor.
4. Gently tug conductor to ensure it is secure.
3.2.2 Screw Terminals
1. Insert equipment grounding
conductor (EGC) into the grounding
busbar.
2. Use an #2 philips screwdriver to
tighten the set screw and securing
the EGC.
3. Gently tug the conductor to ensure
it is secure.
1. Install the AC conduit to the AC grid output opening (12). Use appropriate
conduit ttings and bond where necessary. Run AC grid conductors.
2. Terminate the AC grid conductors to the appropriate terminal.
3. Connect the AC EGC to the grounding busbar.
4. Terminate the opposite end of the inverter output conductors at the main
service panel with the appropriately sized OCPD.
1. Install the AC conduit to the AC grid output opening (11).
Use appropriate conduit ttings and bond where necessary.
Run AC backup conductors.
2. Terminate the AC backup conductors to the appropriate
terminal.
3. Connect the AC EGC to the grounding busbar.
4. The opposite end of the Backup conductors terminate at the
ATS. To complete the ATS connections at this time, refer to
the ATS manual. Ver. Dec. 20, 2021
PN: 002-00078-00