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Midea EL-KFR32GW/Y-A(B) User Manual

Midea EL-KFR32GW/Y-A(B)
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Website: www.mideaaircon.com
Service manual
CAUTION
- BEFORE SERVICING THE UNIT, READ THE SAFETY
- PRECAUTIONS IN THIS MANUAL.
- ONLY FOR AUTHORIZED SERVICE PERSONNEL.
MODELS:
EL-KF20GW/N2Y-A(B) EL-KFR20GW/N2Y-A(B) EL-KF26GW/N2Y-A(B) EL-KFR26GW/N2Y-A(B)
EL-KF36GW/N2Y-A(B) EL-KFR36GW/N2Y-A(B) EL-KF50GW/N2Y-A(B) EL-KFR50GW/N2Y-A(B)
EL-KF61GW/N2Y-A(B) EL-KFR61GW/N2Y-A(B) EL-KF70GW/N2Y-A(B) EL-KFR70GW/N2Y-A(B)
EL-KFR20GW/N1Y-A(B) EL-KFR26GW/N1Y-A(B) EL-KFR36GW/N1Y-A(B)
EL-KF20GW/Y-A(B) EL-KFR20GW/Y-A(B) EL-KF26GW/Y-A(B) EL-KFR26GW/Y-A(B)
EL-KF32GW/Y-A(B) EL-KFR32GW/Y-A(B) EL-KF36GW/Y-A(B) EL-KFR36GW/Y-A(B)
EL-KF50GW/Y-A(B) EL-KFR50GW/Y-A(B) EL-KF61GW/Y-A(B) EL-KFR61GW/Y-A(B)
EL-KF70GW/Y-A(B) EL-KFR70GW/Y-A(B) EL-KF90GW/Y-A(B) EL-KFR90GW/Y-A(B)
EL-KF90GW/SY-A(B) EL-KFR90GW/SY-A(B) AU-KF61GW/Y-A(B) AU-KFR61GW/Y-A(B)
AU-KF70GW/Y-A(B) AU-KFR70GW/Y-A(B) AU-KF85GW/Y-A(B) AU-KFR85GW/Y-A(B)
EL1-KF20GW/Y-A(B) EL1-KFR20GW/Y-A(B) EL1-KF26GW/Y-A(B) EL1-KFR26GW/Y-A(B)
EL1-KF32GW/Y-A(B) EL1-KFR32GW/Y-A(B) EL1-KF20GW/N2Y-A(B) EL1-KFR20GW/N2Y-A(B)
EL1-KF26GW/N2Y-A(B) EL1-KFR26GW/N2Y-A(B) EL1-KF35GW/N2Y-A(B) EL1-KFR35GW/N2Y-A(B)
EL-KT3F53GW/Y-T2 EL-KT3F53GW/Y-T1 EL-KT3FR53GW/Y-T1
EL-KT3F70GW/Y-T2 EL-KT3F70GW/Y-T1 EL-KT3FR70GW/Y-T1
SEL-KF20GW/Y-A(B) SEL-KFR20GW/Y-A(B) SEL-KF26GW/Y-A(B) SEL-KFR26GW/Y-A(B)
SEL-KF32GW/Y-A(B) SEL-KFR32GW/Y-A(B) SEL-KF53GW/Y-A(B) SEL-KFR53GW/Y-A(B)
SEL-KF61GW/Y-A(B) SEL-KFR61GW/Y-A(B) SEL-KF70GW/Y-A(B) SEL-KFR70GW/Y-A(B)
SEL1-KF26GW/Y-A(B) SEL1-KFR26GW/Y-A(B) SEL1-KF36GW/Y-A(B) SEL1-KFR36GW/Y-A(B)
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Midea EL-KFR32GW/Y-A(B) Specifications

General IconGeneral
BrandMidea
ModelEL-KFR32GW/Y-A(B)
CategoryAir Conditioner
LanguageEnglish

Summary

Preface

SAFETY PRECAUTIONS

Essential safety measures and warnings to be followed before and during servicing the air conditioner unit.

INSULATION RESISTANCE TEST

Procedure for performing an insulation resistance test to ensure user safety against electric shock hazards.

FEATURES

Overview of the primary functions and capabilities of the room air conditioner.

CONTROL LOCATIONS

Identification and explanation of the control buttons and display elements on the remote controller and unit.

OUTSIDE DIMENSIONS

Detailed dimensions and specifications for various indoor and outdoor unit sizes.

INSTALLATION

TOOLS NEEDED FOR INSTALLATION

List of necessary tools required for the proper installation of the air conditioning unit.

ITEMS REQUIRED FOR INSTALLING THE UNIT

List of accessories and materials required, in addition to the unit, for installation.

INSTALLATION OF INDOOR UNIT AND OUTDOOR

Guidance on the proper placement and mounting procedures for both indoor and outdoor units.

Indoor unit installation

Specific guidelines for installing the indoor unit, including clearance and mounting considerations.

Outdoor unit installation

Specific guidelines for installing the outdoor unit, including placement and environmental considerations.

Piping length and elevation

Specifications for the maximum allowed length and elevation difference for refrigerant piping.

Fitting the installation plate

Instructions on how to correctly fit and secure the indoor unit installation plate to the wall.

Drill a hole in the wall

Procedure for drilling the necessary hole in the wall for pipe and cable passage.

FLARING WORK AND CONNECTION OF PIPING

Detailed steps for performing flaring work and connecting refrigerant pipes to prevent leaks.

Flaring work

Step-by-step instructions for performing correct flaring of copper pipes using a flaring tool.

Connection of pipes - Indoor

Procedures for connecting refrigerant piping and drain hose to the indoor unit.

For rear right piping

Instructions for routing and connecting piping and cables for rear right installation.

For rear left piping

Instructions for routing and connecting piping and cables for rear left installation.

Indoor unit installation

Steps for mounting the indoor unit onto the installation plate after piping connections.

Connecting the piping to the indoor unit and the drain hose to drain pipe.

Detailed steps for connecting refrigerant pipes and drain hose to the indoor unit.

Wrap the insulation material around the piping connections.

Method for insulating piping connections to prevent condensation and damage.

Set the piping and the drain hose to the back of the chassis with the tubing holder.

Securing the piping and drain hose to the indoor unit chassis using the tubing holder.

Reroute the piping and the drain hose across the back of the chassis, for rear left side external passage.

Guidance on routing piping and drain hose for external passage on the left side.

Locating the indoor unit

Final steps for positioning and securing the indoor unit onto the mounting plate.

Connection of pipes - outdoor

Procedures for connecting refrigerant piping to the outdoor unit.

Align the centre of the piping and sufficiently tighten the flare nut by hand.

Initial hand-tightening of flare nuts for outdoor pipe connections.

Finally, tighten the flare nut with torque wrench until the wrench clicks.

Final tightening of flare nuts using a torque wrench for secure outdoor pipe connections.

CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT

Instructions for connecting electrical power and communication cables between the indoor and outdoor units.

Connect the cable to the indoor unit

Steps for connecting the electrical cable to the terminals of the indoor unit.

Connect the cable to the outdoor unit

Steps for connecting the electrical cable to the terminals of the outdoor unit.

CHECKING THE DRAINAGE AND FORMING THE PIPE

Procedures for checking drainage system functionality and forming drain pipes correctly.

Checking the drainage

Steps to verify the proper functioning of the indoor unit's drainage system.

Form the piping

Guidelines for shaping and securing the drain piping for efficient water flow.

AIR PURGING

Procedures for removing air and moisture from the refrigerant system.

Air purging

Explanation of why air purging is necessary and its effects on the system.

Air purging with vacuum pump

Detailed steps for performing air purging using a vacuum pump and leak testing.

Preparation

Steps to prepare the unit and tools for the air purging and leak testing process.

Leak test

Procedure for conducting a leak test on the refrigerant system using nitrogen gas.

Evacuation

Steps for evacuating the refrigerant lines using a vacuum pump to remove non-condensable substances.

Finishing the job

Final steps to complete the air purging process and prepare the unit for operation.

TEST RUNNING

Procedures for conducting a test run to verify the unit's functionality after installation.

Settlement of outdoor unit

Guidelines for securely anchoring and mounting the outdoor unit.

Prepare remote control

Instructions for installing batteries and preparing the remote control for testing.

Operating the unit with the switch on the indoor unit

Method for initiating a test run using the indoor unit's manual control.

Evaluation of performance

Checks to evaluate the unit's performance and refrigerant charge after test running.

TROUBLE SHOOTING GUIDE

REFRIGERATION CYCLE DIAGRAM

Schematic diagrams illustrating the refrigeration cycle for reverse cycle and cooling-only models.

TROUBLESHOOTING GUIDE

General troubleshooting categories, voltage limits, and operational temperature ranges.

Indoor Unit Error Diagnosis

Tables linking failure phenomena to specific LED indicators on the indoor unit for fault identification.

Troubleshooting Flowcharts

Diagnostic flowcharts to help identify and resolve common operational faults and errors.

Indoor Unit Abnormal Noise

Causes and remedies for abnormal noises originating from the indoor unit.

Outdoor Unit Abnormal Noise

Causes and remedies for abnormal noises originating from the outdoor unit.

Remote Control Issues

Troubleshooting steps for problems related to the remote control's functionality and battery.

Cooling and Heating Performance Issues

Troubleshooting steps for insufficient cooling or heating, including checks for refrigerant and components.

Indoor Unit Water Dripping

Causes and solutions for water dripping from the indoor unit, including drainage and installation checks.

Zero-Crossing Error

Troubleshooting steps for zero-crossing errors, often related to wiring or PCB issues.

WIRING DIAGRAM

WIRING DIAGRAM FOR INDOOR UNITS

Electrical wiring diagrams for various indoor unit models.

Indoor Unit Wiring Diagrams by Model

Wiring schematic for indoor units EL-KF20GW/N2Y-A(B) and related models.

Indoor Unit Wiring Diagrams by Model

Wiring schematic for indoor units EL-KF26GW/N2Y-A(B) and related models.

Indoor Unit Wiring Diagrams by Model

Wiring schematic for indoor units EL-KF32GW/Y-A(B) and related models.

Indoor Unit Wiring Diagrams by Model

Wiring schematic for indoor units EL-KF36GW/N2Y-A(B) and related models.

Indoor Unit Wiring Diagrams by Model

Wiring schematic for indoor units EL-KF50GW/N2Y-A(B) and related models.

Indoor Unit Wiring Diagrams by Model

Wiring schematic for indoor units EL-KF61GW/N2Y-A(B) and related models.

Indoor Unit Wiring Diagrams by Model

Wiring schematic for indoor units EL-KF70GW/N2Y-A(B) and related models.

Indoor Unit Wiring Diagrams by Model

Wiring schematic for indoor units EL-KF20GW/Y-A(B) and related models.

Indoor Unit Wiring Diagrams by Model

Wiring schematic for indoor units EL-KF26GW/Y-A(B) and related models.

Indoor Unit Wiring Diagrams by Model

Wiring schematic for indoor units EL-KF32GW/Y-A(B) and related models.

Indoor Unit Wiring Diagrams by Model

Wiring schematic for indoor units EL-KF36GW/Y-A(B) and related models.

Indoor Unit Wiring Diagrams by Model

Wiring schematic for indoor units EL-KF50GW/Y-A(B) and related models.

WIRING DIAGRAM FOR OUTDOOR UNITS

Electrical wiring diagrams for various outdoor unit models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units EL-KF20GW/N2Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units EL-KF26GW/N2Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units EL-KF36GW/N2Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units EL-KF32GW/Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units EL-KF50GW/N2Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units EL-KF50GW/Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units EL-KF61GW/N2Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units EL-KF61GW/Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units EL-KF70GW/N2Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units EL-KF70GW/Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units EL-KF90GW/Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units EL-KF90GW/SY-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units AU-KF61GW/Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units AU-KFR61GW/Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units AU-KF70GW/Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units AU-KFR70GW/Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units AU-KF85GW/Y-A(B) and related models.

Outdoor Unit Wiring Diagrams by Model

Wiring schematic for outdoor units AU-KFR85GW/Y-A(B) and related models.

EXPLODED VIEWS

REPLACEMENT PARTS LIST

SPECIFICATIONS

MODEL CHECK LIST

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