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Chigo KFR-35GW User Manual

Chigo KFR-35GW
104 pages
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1
CHIGO
Service mannal
Room airconditioner
Split Wall-Mounted Type
NOTE:
Before servicing the unit, please first read the service
manual and then contact with your service center if
meet problem

Table of Contents

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Chigo KFR-35GW Specifications

General IconGeneral
Power Supply220-240V, 50Hz
Air Flow (Indoor)600 m³/h
Operating Temperature (Cooling)18-43 °C
Operating Temperature (Heating) -7-24 °C
Cooling Capacity3.5 kW
Noise Level (Indoor)38 dB(A)

Summary

Summary

1.1 Indoor Unit

Describes specifications and models of indoor units.

1.2 Outdoor Unit

Describes specifications and models of outdoor units.

Model Explaining

Model Explaining

Details the coding structure and meaning of model names.

Installation

3.1 Safety Precaution

Essential safety instructions to prevent injury and damage during installation.

3.2 Warning

Important warnings related to installation practices and component usage.

3.3 Installation Details

Provides specific technical details for installation, including torque and pipe specs.

Exploded View and Part List

Indoor unit and outdoor unit explosion diagram and spare parts list

Lists components and their arrangement for indoor and outdoor units.

Operation Principle

Refrigerant Cycle Diagram (Working Principle)

Illustrates the refrigerant flow and operational principles of the air conditioner.

Wiring Diagrams

7.1 Indoor unit

Electrical schematic diagrams for various indoor unit models.

7.2 Outdoor unit

Electrical schematic diagrams for various outdoor unit models.

PCB Principle Chart

8.1、38 section of crystal color ordinary schematic diagram

Schematic diagram for specific PCB models (38 section).

8.2、65 Mitsubishi main chip schematic diagram

Schematic diagram for specific PCB models (65 Mitsubishi main chip).

8.3、85 section of schematic diagrams

Schematic diagrams for specific PCB models (85 section).

8.4、Three water chestnut 18NV 85 section of entire compatible electrically controlled schematic diagrams

Schematic diagrams for compatible electrically controlled boards (18NV 85).

8.5、Mitsubishi Jin dynasty 85 model of simple three lamp electrically controlled motherboards

Schematic diagrams for Mitsubishi Jin dynasty 85 model motherboards.

PCB Function

Display Panel

Explains LED indicators and display functions for different panel types.

Cooling

Describes operational logic and conditions for cooling mode.

Heating (only applicable to heat pump units)

Details operational logic and conditions for heating mode.

Defrost (only applicable to the heating mode)

Explains intelligent defrosting logic and conditions in heating mode.

Dehumidification

Describes the operation and logic for dehumidification mode.

Ventilation working mode (only applicable to single cooling unit)

Explains operation in ventilation mode for single cooling units.

Automatic mode

Describes conditions and logic for automatic operation mode.

Time on and time off

Explains the function of timer settings for unit operation.

Sleep function

Details the operation of the sleep mode and its indicator.

Emergency key function

Explains the use of the physical execution key for operation and self-check.

Failure display

Lists fault codes, LED indications, and their meanings for troubleshooting.

Troubleshooting

Indoor Tr sensor error

Troubleshooting steps for indoor temperature sensor errors.

Indoor TP1 sensor error

Troubleshooting steps for indoor coil pipe temperature sensor errors.

Only indoor fan motor does not operate

Diagnostic flowchart for when the indoor fan motor fails to operate.

Compressor does not operate

Troubleshooting flowchart for compressor operational issues.

Trouble shooting (general flowcharts)

General troubleshooting guide with flowcharts for unit malfunctions.

Indoor unit and outdoor unit don’t operate

Diagnostic flowchart for when neither the indoor nor outdoor unit operates.

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