Geti GWH01 Manual

MPPT solar inverter for PV water heating GWH01
0429 0246
1. Important safety instructions
To ensure your safety, please read the user manual carefully before installing and using the MPPT solar electric heating controller, and keep this manual
for future use. This manual provides detailed installation and operating instructions for the MPPT solar electric heating controller. The installer of the
controller should have qualified electrical skills and be familiar with the design and wiring rules of the solar system.
The installation information in this manual is for professional operators.
The following symbols are used in this manual to indicate potentially hazardous conditions or to mark important safety items.
1.1 Safety symbols
WARNING!
This mark indicates that there is a danger when perform.
CAUTION!
This mark indicates the key operation steps to ensure the safe operation of the controller.
NOTE!
The note indicates the safe operation and correct operationprocedures of the controller.
1.2 Safety notice
● Read the instructions and precautions in this manual carefully before starting the installation.
● It is not allowed to disassemble the controller for private maintenance.
● Before installing or moving the controller, be sure to disconnect all power supplies connected to the controller.
● During the operation of the controller, heat will be emitted inside the body, which may cause skin burns. The controller should be installed in
a location that is not easy to touch.
● Use insulated tools when connecting the power cord.
● Do not wear jewelry when installing the controller.
● The power cord connection must be fastened to prevent the power connector from overheating to catching fire due to the loose power cord.
● Use wires and circuit breakers of appropriate specifications.
2. Overview
2.1 Introduction
The MPPT solar electric heating controller (hereinafter referred to as the controller) is to provide the electric energy which generated by the solar
panel, to the electric heating rod with the maximum efficiency through the MPPT technology. It converts PV direct current into square wave alternating
current, which can be used to connect to traditional utility water heaters directly. The controller comes with intelligent control function, solar and AC
switching intelligently.
2.2 Controller description
The appearance characteristics of the controller and the function description of each part are shown in the figure below.
1. PV input terminal
+ Connect to PV positive (+)
- Connect to PV negative (-)
2. AC OUTPUT terminal interface
L - Connect to AC Grid L line
N - Connect to AC Grid N line
PE - Connect to AC Grid Ground line
3. AC INPUT terminal interface
L - Connect to heating equipment L line
N - Connect to heating equipment N line
PE - Connect to heating equipment Ground line
4. LED indicators
Indicates the current working status of the controller
Green indicator: indicates solar heating status
Yellow indicator: indicates AC heating status
Red indicator: indicates fault status
Blue indicator: indicates the controller power
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EN