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Hisense KFR-72LW User Manual

Hisense KFR-72LW
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KFR-72LW/88FZBpC
Maintenance manual
Hisense Kelon Air-Conditionning Co.,Ltd
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Hisense KFR-72LW Specifications

General IconGeneral
Power Supply220-240V, 50Hz
RefrigerantR410A
Compressor TypeRotary
TypeSplit System
Cooling Capacity7200W

Summary

KFR-72LW/88FZBpC Maintenance Manual

Product Features and Functions

Circuit and System Technical Features

Covers the technical specifications of the internal circuitry and system design.

Specifications

Electric Functions and Operation

Electrical Data and Diagrams

Wiring Diagrams Overview

Introduces the electrical wiring diagrams for the unit.

Indoor Unit Wiring Diagram

Detailed wiring schematic for the indoor component.

Outdoor Unit Wiring and System Flow

Outdoor Unit Wiring Diagram

Detailed wiring schematic for the outdoor component.

Refrigerant Flow Diagram

Illustrates the path of refrigerant through the cooling and heating cycles.

System Pressure Characteristics

Graphs showing system pressure under various operating conditions.

Dimensional Drawings and Specifications

Indoor Unit Dimensions

Technical drawings showing the physical dimensions of the indoor unit.

Outdoor Unit Dimensions

Technical drawings showing the physical dimensions of the outdoor unit.

After Service and Troubleshooting

Trouble Indicator Light Guide

Lists common issues indicated by LED lights during compressor operation.

Outdoor LED Fault Indications

Explains LED indicators for faults when the compressor is interrupted.

Indoor Unit Fault Code Display

Details fault codes displayed by the indoor unit's indicators.

Indoor Unit Fault Code Retrieval

Procedure to access and display specific fault codes on the indoor unit.

Parts Identification and Lists

Outdoor Unit Parts List

Identifies and lists all components of the outdoor unit.

Indoor Unit Parts List

Identifies and lists all components of the indoor unit.

Component Specifications and Data

Sensor Resistance Characteristics

Standard resistance values for various temperature sensors at different temperatures.

Failure Analysis and Troubleshooting Processes

Evaporator Freezing Troubleshooting

Step-by-step process to diagnose and resolve evaporator freezing issues.

Evaporation Overload Troubleshooting

Diagnostic steps for evaporation overload faults.

Communication Failure Troubleshooting

Process for troubleshooting communication errors between units.

Indoor Fan Failure Troubleshooting

Steps to diagnose and fix indoor fan operational problems.

Brightness Sensor Fault Diagnosis

Troubleshooting guide for issues with the brightness sensor.

EEPROM Failure Troubleshooting

Steps to address EEPROM related faults.

Outdoor Temperature Sensor Faults

Diagnostic process for outdoor temperature sensor malfunctions.

Condensation Temperature Sensor Faults

Troubleshooting steps for condensation temperature sensor issues.

Compressor Overheating Faults

Diagnostic process for compressor overheating conditions.

Over-Current Fault Troubleshooting

Steps to identify and resolve over-current faults.

No Load Failure Diagnosis

Troubleshooting process for situations where the unit operates without load.

Abnormal Supply Voltage Troubleshooting

Steps to diagnose and fix issues related to abnormal power supply voltage.

Outdoor Instantaneous Power Failure

Troubleshooting process for sudden power interruptions in the outdoor unit.

Cooling Outdoor Overload Issues

Diagnostic steps for overload conditions during cooling operation.

IPM Module Fault Troubleshooting

Steps to diagnose and resolve issues related to the IPM module.

EEPROM Fault Diagnosis

Troubleshooting process for EEPROM related faults.

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