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.
Inverter Bottom Panel
WiFi antenna
DC disconnect
PV
Battery
Communication Connections
Battery – Inverter
CAT 5/6
EI Residential Solar Solution
Quick Start Guide – EI Inverter
4. Place the battery.
5. Wire communications and power connections.
You must install communications connections.
6. Connect an antenna.
7. Commission the system.
Cell antenna
E-Stop/TAP ATS/BAT
ATS/Grid
TAP – Inverter
For TS4-A-O/S/M
RS-485/
CAT 5/6
Enclosure Mounting
Locate all EI enclosures:
• In a well-ventilated, easily accessible location.
• On a flat surface against a solid wall without tilt.
• Away from antennas and electromechanical interference.
Inverter Grounding Points
Enclosure grounding conductors: 10 – 8 AWG
Equipment grounding conductor (EGC) busbar:
Inverter – ATS
Use 2- and 3-pin plugs from the Accessories bag.
If the left-most 2-pin socket is absent, disregard
• All components must be installed and maintained
by qualified 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.
• Sheltered from direct sunlight and precipitation with
ambient temperature <50°C.
• Above potential flooding.
Grounding electrode conductor (GEC) terminal:
RS-485
the 12V connection to ATS CN9 pins.
*002-00119-00*
©20230504 Tigo Energy, Inc. 002-00119-00 Rev. 3.0
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