APT 8KW User Manual (English)

Questions and Answers:

H
hutchinsonshawnAug 4, 2025
What to do if the APT Inverter buzzer beeps continuously and the red LED is on?
- C
  Christopher ThomasAug 4, 2025
  If the buzzer beeps continuously and the red LED is on, there could be several reasons: * The fan might have a fault, and you should replace it. * The internal temperature of the inverter component might be over 85°C. Ensure the environment around the equipment is well-ventilated. * The battery voltage might be too high or too low. Check if the specifications and quantity of batteries meet the requirements and charge the battery immediately, checking for damage. * The battery might be overcharged and needs to be returned to a repair center. * The output might be short-circuited. Check the output cable connection. * There might be an overload error. Reduce the load. * The output might be abnormal, and the unit needs to be returned to the maintenance center.
S
Susan ThomasAug 9, 2025
What to do if my APT Inverter has no response after powering on?
- E
  Emily JenkinsAug 9, 2025
  If your APT Inverter doesn't respond after you power it on, there could be a few reasons: * The battery voltage might be too low. Re-charge the battery. * The internal fuse might have tripped. Contact a repair center to replace the fuse. * The battery may need replacing.
M
Madison ScottAug 19, 2025
How to fix an APT Inverter that shuts down automatically during startup?
- S
  sethhallAug 19, 2025
  If your APT Inverter shuts down automatically during the startup process, it's likely that the battery voltage is too low. To resolve this: * Re-charge the battery. * If re-charging doesn't solve the issue, replace the battery.
L
Logan AlexanderAug 25, 2025
What to do if APT Inverter works in battery mode when mains exist?
- H
  hfloydAug 26, 2025
  If your APT Inverter operates in battery mode even when mains power is available, here’s what you can check: * The input protector might be triggered. Verify that the AC breaker is turned on and the AC wiring is properly connected. * The AC power quality might be insufficient (from the grid or a generator). Check if the AC wires are too thin or too long. Also, if you're using a generator, ensure it's working correctly and that the input voltage range setting is correct.

APT 8KW Specifications

General

Brand	APT
Model	8KW
Category	Inverter
Language	English

Summary

About This Section

Manual Purpose

Describes the assembly, installation, operation, and troubleshooting of the unit.

Scope of Manual

Provides safety, installation guidelines, and information on tools and wiring.

Safety Instructions

General Safety Precautions

Outlines critical safety instructions, warnings, and cautions for operation and installation.

Introduction to the Inverter

Product Features

Lists the main capabilities and functionalities of the inverter/charger.

Basic System Architecture

Illustrates the typical system setup and required components for operation.

Product Overview

Identifies and describes the physical ports and components on the inverter unit.

Installation Guide

Unpacking and Inspection

Guides on checking the package contents and inspecting the unit for damage upon arrival.

Preparation for Installation

Steps for preparing the unit before connecting any wires, including cover removal.

Mounting the Unit

Provides guidelines for selecting a suitable installation location and mounting the inverter.

Battery Connection

Details the correct procedure and specifications for connecting the battery bank.

AC Input/Output Connection

Instructions for safely connecting the AC power input and output terminals.

PV Connection

Steps and precautions for connecting photovoltaic (PV) modules to the inverter.

Recommended Panel Configuration

PV Module Selection Guidelines

Parameters and configurations for selecting compatible PV modules.

Final Assembly and Connectivity

Final Assembly Procedure

Steps to re-connect cables and attach the bottom cover after wiring.

RS232/USB Communication

Guides on downloading and using the "SolarPower" software for communication.

Wi-Fi Connection

Explains how to connect and use the device's Wi-Fi capability for monitoring.

Dry Contact Signal

Describes the dry contact available for external device signaling at warning levels.

Bluetooth Communication

Details how to download and connect the "RevoMonitor" APP via Bluetooth.

Operation Modes

Power ON/OFF Switch

Instructions on how to turn the inverter on and off.

Operation and Display Panel

Overview of the front panel's indicators, function keys, and LCD display.

LCD Display Icons

Explains various icons displayed on the inverter's LCD screen.

LCD Setting Menu

Details on accessing and configuring unit settings via the LCD menu.

Parallel Installation Guide

Recommended Cables and Breakers

Specifies cable sizes and breaker ratings for parallel operation.

Single-Phase Parallel Operation

Key considerations and warnings for setting up single-phase parallel operation.

Single-Phase Parallel Wiring

Diagrams illustrating cable connections for 2 to 6 inverters in single-phase parallel.

Three-Phase Parallel Operation

Important notes and warnings for three-phase parallel configurations.

Three-Phase Parallel Wiring

Diagrams showing cable connections for three-phase parallel setups.

Faults and Warnings

Fault Codes

A list of fault codes and their corresponding events or errors.

Warning Codes

A list of warning codes and their associated events.

Parallel Fault Codes

Specific fault codes and events applicable to parallel operation.

Troubleshooting Common Issues

Startup Shutdown Issues

Resolves problems causing the unit to shut down during startup.

No Response After Power On

Guides on troubleshooting when the unit shows no indication after powering up.

Unit Operates in Battery Mode

Diagnoses why the unit uses battery mode when mains power is available.

Repeated Relay Switching

Addresses the issue of the internal relay repeatedly switching on/off.

Buzzer and Red LED Alarm

Troubleshoots continuous buzzer alarms and red LED indicators.

Internal Inverter Faults

Addresses internal inverter faults indicated by specific codes like 08, 09, 12, 53, 57, 52, 55.

Over Current and Surge Issues

Resolves problems related to over current or surge conditions (Fault Code 10).

PV Configuration Voltage Issues

Resolves PV configuration exceeding inverter voltage limits (Fault Code 11).

Battery Discharge Over Current

Troubleshoots problems with excessive battery discharge current (Fault Code 13).

Power Feedback Protection

Explains power feedback protection faults and their resolution (Fault Code 60).

Firmware Version Inconsistency

Troubleshoots issues arising from inconsistent firmware versions (Fault Code 71).

Inverter Output Current Differences

Resolves discrepancies in output current between inverters (Fault Code 72).

AC Output Voltage Setting Mismatch

Addresses differing AC output voltage settings among inverters (Fault Code 73).

CAN Data Loss Troubleshooting

Troubleshoots CAN data loss issues (Fault Code 80).

Host Data Loss in Parallel Systems

Addresses host data loss, particularly in three-phase parallel systems (Fault Code 81).

Synchronization Data Loss

Resolves synchronization data loss problems (Fault Code 82).

Inconsistent Battery Voltages

Fixes issues where battery voltages across inverters are inconsistent (Fault Code 83).

AC Input Parameter Mismatch

Addresses differing AC input voltage and frequency detections (Fault Code 84).

AC Output Current Unbalance

Troubleshoots AC output current imbalance issues (Fault Code 85).

AC Output Mode Setting Differences

Resolves discrepancies in AC output mode settings between units (Fault Code 86).

Specifications Overview

Line Mode Specifications

Technical parameters for the unit when operating in line mode.

Inverter Mode Specifications

Technical parameters for the unit operating as an inverter.

Charge Mode Specifications

Technical parameters for the unit in charge mode, including utility and solar.

General Specifications

Overall specifications like safety certification, operating temperature, and dimensions.

Installation Dimension Drawing

Unit Dimensions and Mounting

Visual representation of the inverter's physical dimensions and mounting details.

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APT 8KW User Manual

Table of Contents

Questions and Answers:

APT 8KW Specifications

Summary

About This Section

Manual Purpose

Scope of Manual

Safety Instructions

General Safety Precautions

Introduction to the Inverter

Product Features

Basic System Architecture

Product Overview

Installation Guide

Unpacking and Inspection

Preparation for Installation

Mounting the Unit

Battery Connection

AC Input/Output Connection

PV Connection

Recommended Panel Configuration

PV Module Selection Guidelines

Final Assembly and Connectivity

Final Assembly Procedure

RS232/USB Communication

Wi-Fi Connection

Dry Contact Signal

Bluetooth Communication

Operation Modes

Power ON/OFF Switch

Operation and Display Panel

LCD Display Icons

LCD Setting Menu

Parallel Installation Guide

Recommended Cables and Breakers

Single-Phase Parallel Operation

Single-Phase Parallel Wiring

Three-Phase Parallel Operation

Three-Phase Parallel Wiring

Faults and Warnings

Fault Codes

Warning Codes

Parallel Fault Codes

Troubleshooting Common Issues

Startup Shutdown Issues

No Response After Power On

Unit Operates in Battery Mode

Repeated Relay Switching

Buzzer and Red LED Alarm

Internal Inverter Faults

Over Current and Surge Issues

PV Configuration Voltage Issues

Battery Discharge Over Current

Power Feedback Protection

Firmware Version Inconsistency

Inverter Output Current Differences

AC Output Voltage Setting Mismatch

CAN Data Loss Troubleshooting

Host Data Loss in Parallel Systems

Synchronization Data Loss

Inconsistent Battery Voltages

AC Input Parameter Mismatch

AC Output Current Unbalance

AC Output Mode Setting Differences

Specifications Overview

Line Mode Specifications

Inverter Mode Specifications

Charge Mode Specifications

General Specifications

Installation Dimension Drawing

Unit Dimensions and Mounting

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