iTECHWORLD 2420 20 AMP MPPT Solar Regulator Charge Controller User Manual
- October 30, 2023
- iTECHWORLD
Table of Contents
User’s Manual
Safety Instructions
- Make sure your battery has enough voltage for the controller to recognize the battery type before first installation.
- The battery cable should be as short as possible to minimize power loss.
- This solar regulator is preset to suit lithium Ion batteties. (Please set the controller to the correct battery type when using.)
- The charge regulator is only suitable for regulating solar modules. Never connect another charging source to the charge regulator.
- The controller will get hot when it is working, please install the controller on a smooth, well ventilated surface.
Product Features
- Built-in industrial micro controller.
- LCD display with adjustable parameters.
- Fully 3-stage PWM charge management.
- Built-in short-circuit protection, open-circuit protection, reverse protection ,over-load protection.
- Dual mosfet reverse current protection, low heat production.
LCD Display/Key
menu: switch between different display, or to enter/exit setting by long
press.
up: press to increase value.
down: press to decrease value.
System Connection
- Connect your battery to the charge regulator positive+and negative-
- Connect your solar panel to the solar input positive+an negative-
- Connect your load to the charge regulator positive+and negative-
The reverse order applies when deinstalling!
An improper sequence order can damage the controller!
Display/Setting
Attn:1. Press the [down] button to on/off load manully at main display.
2.The work mode is working as below: [24H]Load output 24 hours
[1-23H]Load on after sunset and closed after, setting hours
TroubleShooting
| Situation | Probable Cause | Solution |
|---|---|---|
| Charge icon not on when sunny | Solar panel opened or reversed | Reconnect |
| Load icon off | Mode setting wrong | Set again |
| Battery low | Recharge | |
| Load icon slow flashing | Over load | Reduce load watt |
| Load icon fast flashing | Short circuit protection | Auto reconnect |
| Power off | Battery too low/Reverse | Check battery/Connection |
Technical Parameter
| Model | 2420 | 2440 |
|---|---|---|
| System Voltage | 12V/24V AUTO | |
| Charge Current | 10A | 20A |
| Discharge Current | WA | 20A |
| Max Solar Input | < 50V | |
| Default Battery Type | 1 B3 (3.2V*4)(12V)(Lithium Lifepo4) | |
| Float Charge | 14.4V (defaul, adjustable) | |
| LVD | 10.4V (defaul, adjustable) | |
| LVR | 11.6V (defaul, adjustable) | |
| Battery Type | LifePo4 | Gel |
| Code | 1b3 | 2b3 |
| Battery Charge | 12V | 24V |
| Float Charge | 14.4V | 28.8V |
| . Discharge Cut-off voltage | 10.4V | 20.8V |
| Discharge Recovery voltage | 11.6V | 23.2V |
| Constant Voltage | 14.4V | 28.8V |
-FX10.22.V04
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