Service Guideline of TOWER
Date: 2021.11.4
Valid for: T7 / T10 / T14 / T17 / T21
Important Information
Important: The installation and all other kinds of works or measurements in combination with the Tower are only allowed by professional and qualified electricians. This manual is a brief help for battery expansion, and cannot replace the original user manual.
Attention: High Voltage! Improper handling can cause danger and damage.
The GOODWE ET inverter is only compatible with T10/T14/T17, and the GOODWE EH inverter is only compatible with T7/T10/T14. For other inverter adaptations, please consult the battery manufacturer or refer to the battery manufacturer's compatible list.
1. System Capacity Expansion
(Only applicable to Tower new adaptive version)
1.1 Procedure: Adjust the SOC of the initial battery system to 50% (difference <±1%), and then add the new HV9637 module to the system. (The default SOC of the new HV9637 module is 50%).
Note: When the system has been used for more than half a year, it is not recommended to add new batteries for expansion. HV9637 module installation and expansion do not need to distinguish the stacking order of battery modules.
Example: Take T7 to T10 Expansion
Step 1: Adjust the SOC of the T7 system to 50% with an inverter firstly.
Step 2: Put the new HV9637 module into the system. The maximum capacity can be expanded to T21 (6 HV9637 modules stacked).
Diagrammatic representation of T7 to T10 expansion:
Initial state (e.g., T7): BDU, HV9637 1#, HV9637 2#, BASE.
Transition: An orange arrow ➡️ indicates the expansion process.
Expanded state (e.g., T10): BDU, HV9637 1#, HV9637 2#, HV9637 3~6#, BASE.
System Configurations
The following outlines the typical module stacking for different Tower system capacities:
T10 Configuration
BDU, HV9637 3#, HV9637 1#, HV9637 2#, BASE.
T14 Configuration
BDU, HV9637 4#, HV9637 3#, HV9637 1#, HV9637 2#, BASE.
T17 Configuration
BDU, HV9637 5#, HV9637 4#, HV9637 3#, HV9637 1#, HV9637 2#, BASE.
T21 Configuration
BDU, HV9637 6#, HV9637 5#, HV9637 4#, HV9637 3#, HV9637 1#, HV9637 2#, BASE.
Manufacturer: Daqin New Energy Tech (Taizhou) Co., Ltd.
Address: Building 13, Kunshan Jiangyan Industrial Park, Chenzhuang West Road, Jiangyan District, Taizhou City, Jiangsu Province, China, 225500.
