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Growatt WIT 28-55K-AU-US L2 Quick Start Manual
Growatt WIT 28-55K-AU-US L2 Quick Start Manual

Growatt WIT 28-55K-AU-US L2 Quick Start Manual

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Battery BOX
Quick Installation Manual
1
Overview
.
1
2
(1) Front panel
(5) System indicator
(9) Network communication port
(13) GRID terminal
Note:
1. The content of this document is continually reviewed and amended, where necessary. Growatt reserves the right to make
changes to the material at any time and without notice. Unless otherwise agreed, this document is for quick installation
guidance only. All information and suggestions in this document do not constitute a warranty of any kind, express or implied.
Growatt reserves all rights for final explanation.
2. This document is for quick installation guidance only. For details, please refer to the User Manual.
3. Machine damage caused by failure to follow the instructions is not covered under any warranty.
2
Installation
.
System overview
WIT
BAT
Phone
2.2
Floor-mounted installation
1
Note:
1. The Load Breaker and the Bypass Breaker should be interlocked.
2. When determining the installation position of the inverter, please consider the position of the batteries and the distribution panel.
3. For export limitation, you are advised to connect an energy meter and current transformers to the inverter.
3
4
5
6 7 8 9
(2) OLED display screen
(6) BMS communication port
(10) DRMS communication port
(14) LOAD terminal
Primary Load
Bypass
Breaker
Load
Load
Breaker
Grid
AC
Breaker
Meter
Secondary Load
2
Φ0.47 in
Note:
When drilling holes, avoid the
water pipes and power cables
buried under the ground.
WIT 28-55K-AU-US L2 Quick Guide
10 11 12
13 14
(3) Battery status indicator
(7) Parallel communication port
(11) Battery terminal
(15) Communication port(WiFi&4G)
2.1
Installation requirements
40 in
Grid
3
15
(4) Push button
(8) Monitor communication port
(12) BMS power supply port
(16) Base
40 in
40 in
16
Unit: inch
22.62 in
Unit: inch

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Summary of Contents for Growatt WIT 28-55K-AU-US L2

  • Page 1 (16) Base Note: 1. The content of this document is continually reviewed and amended, where necessary. Growatt reserves the right to make changes to the material at any time and without notice. Unless otherwise agreed, this document is for quick installation guidance only.
  • Page 2: Connecting Cables

    Connecting cables Please prepare the cables listed below before electrical connections. Recommended Cable Type Note: specifications A multiple-core copper cable 1. If the diameter of the cable does Grounding cable 1AWG (yellow and green) not match the terminal, please contact our after-sales Grid cable A multi-core copper cable 2/0AWG-400kcmil...
  • Page 3 3.3.2 Connecting the BMS power supply cable BMS power supply port description Label Definition Note: 1. Thread the BMS power supply cable and batter power cables through the first cable routing hole of the inverter and connect them to the corresponding terminals. 2.
  • Page 4: Wifi&Lan

    Parallel communication port Parallel communication port description(COM2) Description Note Description Note 24V.S CAN2_H (OUT) Parallel communication CAN2 Output 24V signal signal (output) GND.S CAN2_L (OUT) CAN1_H (IN) RS485_1A (OUT) Parallel communication 485 Parallel communication CAN1 signal (output) CAN1_L (IN) RS485_1B (OUT) signal (input) GND.S Grounding...
  • Page 5 Wiring diagram 3.5.1 Wiring on the right of the inverter 3.5.2 Positions of the inverter and the battery system 3.6 Right side cover plate mounting 3.5.6 Communication module installation Post-installation check Number Checking item Number Checking item The storage inverter is installed correctly and Ground cables are connected securely.
  • Page 6 OLED display screen Battery connection indicator System indicator Communication indicator PV indicator Battery status indicator On-grid indicator Push button Off-grid indicator Service and contact Growatt USA, Inc. 9227 Reseda Blvd, #435 Northridge, CA 91324, USA. +1-866-686-0298 usaservice@ginverter.com us.growatt.com Download Manual GR-UM-373-A-01 (PN:044.0124301)