Table of Contents
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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-KF36GW/N2Y-A(B)
EL-KF61GW/N2Y-A(B)
EL-KFR20GW/N1Y-A(B)
EL-KF20GW/Y-A(B)
EL-KF32GW/Y-A(B)
EL-KF50GW/Y-A(B)
EL-KF70GW/Y-A(B)
EL-KF90GW/SY-A(B)
AU-KF70GW/Y-A(B)
EL1-KF20GW/Y-A(B)
EL1-KF32GW/Y-A(B)
EL1-KF26GW/N2Y-A(B)
EL-KT3F53GW/Y-T2
EL-KT3F70GW/Y-T2
SEL-KF20GW/Y-A(B)
SEL-KF32GW/Y-A(B)
SEL-KF61GW/Y-A(B)
SEL1-KF26GW/Y-A(B)
EL-KFR20GW/N2Y-A(B)
EL-KFR36GW/N2Y-A(B)
EL-KFR61GW/N2Y-A(B)
EL-KFR26GW/N1Y-A(B)
EL-KFR20GW/Y-A(B)
EL-KFR32GW/Y-A(B)
EL-KFR50GW/Y-A(B)
EL-KFR70GW/Y-A(B)
EL-KFR90GW/SY-A(B)
AU-KFR70GW/Y-A(B)
EL1-KFR20GW/Y-A(B)
EL1-KFR32GW/Y-A(B)
EL1-KFR26GW/N2Y-A(B)
EL-KT3F53GW/Y-T1
EL-KT3F70GW/Y-T1
SEL-KFR20GW/Y-A(B)
SEL-KFR32GW/Y-A(B)
SEL-KFR61GW/Y-A(B)
SEL1-KFR26GW/Y-A(B)
Website: www.mideaaircon.com
EL-KF26GW/N2Y-A(B)
EL-KF50GW/N2Y-A(B)
EL-KF70GW/N2Y-A(B)
EL-KFR36GW/N1Y-A(B)
EL-KF26GW/Y-A(B)
EL-KF36GW/Y-A(B)
EL-KF61GW/Y-A(B)
EL-KF90GW/Y-A(B)
AU-KF61GW/Y-A(B)
AU-KF85GW/Y-A(B)
EL1-KF26GW/Y-A(B)
EL1-KF20GW/N2Y-A(B)
EL1-KF35GW/N2Y-A(B)
EL-KT3FR53GW/Y-T1
EL-KT3FR70GW/Y-T1
SEL-KF26GW/Y-A(B)
SEL-KF53GW/Y-A(B)
SEL-KF70GW/Y-A(B)
SEL1-KF36GW/Y-A(B)
0
EL-KFR26GW/N2Y-A(B)
EL-KFR50GW/N2Y-A(B)
EL-KFR70GW/N2Y-A(B)
EL-KFR26GW/Y-A(B)
EL-KFR36GW/Y-A(B)
EL-KFR61GW/Y-A(B)
EL-KFR90GW/Y-A(B)
AU-KFR61GW/Y-A(B)
AU-KFR85GW/Y-A(B)
EL1-KFR26GW/Y-A(B)
EL1-KFR20GW/N2Y-A(B)
EL1-KFR35GW/N2Y-A(B)
SEL-KFR26GW/Y-A(B)
SEL-KFR53GW/Y-A(B)
SEL-KFR70GW/Y-A(B)
SEL1-KFR36GW/Y-A(B)
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Table of Contents
Troubleshooting
Related Manuals for Midea EL-KF20GW/N2Y-A(B)
Summary of Contents for Midea EL-KF20GW/N2Y-A(B)
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Page 1: Service Manual
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) -
Page 2: Table Of Contents
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series CONTENTS 1. PREFACE 1.1 SAFETY PRECAUTIONS........................1 1.2 INSULATION RESISTANCE TEST......................1 1.3 FEATURES...............................2 1.4 CONTROL LOCATIONS..........................2 1.5 OUTSIDE DIMENSIONS..........................3 2. INSTALLATION 2.1 TOOLS NEEDED FOR INSTALLATION....................5 2.2 ITEMS REQUIRED FOR INSTALLING THE UNIT..................5 2.3 INSTALLATION OF INDOOR UNIT AND OUTDOOR UNIT ..............6 2.4 FLARING WORK AND CONNECTION OF PIPING...................8 2.5 CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT……………....12... -
Page 3: Features
1.3 FEATURES LED lamp: Error self diagnosis function. POWER Anti-icing function at cooling mode. AUTO Anti-cold air function at heating mode. TIMER Auto-defrosting and heating recovering function DEFROST at heating mode. Outdoor unit overload current protection. Remote controller: Temperature protection of the outdoor LCD display compressor top. -
Page 4: Outside Dimensions
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series Size C indoor units: 1.5 OUTSIDE DIMENSIONS 1.5.1 Indoor units: EL-KF50GW/N2Y-A(B) EL-KFR50GW/N2Y-A(B) EL-KF50GW/Y-A(B) EL-KFR50GW/Y-A(B) EL-KT3F53GW/Y-T2 EL-KT3F53GW/Y-T1 EL-KT3FR53GW/Y-T1 SEL-KF53GW/Y-A(B) SEL-KFR53GW/Y-A(B) Size D indoor units: EL-KF61GW/N2Y-A(B) EL-KFR61GW/N2Y-A(B) EL-KF70GW/N2Y-A(B) EL-KFR70GW/N2Y-A(B) EL-KF61GW/Y-A(B) EL-KFR61GW/Y-A(B) EL-KF70GW/Y-A(B) EL-KFR70GW/Y-A(B) - Page 5 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series For Size D indoor unit: EL1-KF20GW/Y-A(B) EL1-KFR20GW/Y-A(B) EL1-KF26GW/Y-A(B) EL1-KFR26GW/Y-A(B) 150 or more to the ceiling Ho oked Part Ho oked Pa rt Hooked Part EL1-KF20GW/N2Y-A(B) EL1-KFR20GW/N2Y-A(B) 1080 EL1-KF26GW/N2Y-A(B) EL1-KFR26GW/N2Y-A(B) 120mm o r more to 1 20mm or more to...
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Page 6: Installation
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 2 INSTALLATION 2.2 ITEMS REQUIRED FOR INSTALLING THE 2.1 TOOLS NEEDED FOR INSTALLATION UNIT Level gauge Name of Accessories Quantity Screwdriver Installation Plate Electric drill Self-tapping Screw ST3.9x25 Hole core drill ( φ85mm or φ115mm depending (Type “A”) on Model) -
Page 7: Installation Of Indoor Unit And Outdoor Unit
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series Typical installation 6. The indoor unit should be installed on the wall at a height of 1.7 meters or more from the floor but less than 2.3 meters from the floor. 7. - Page 8 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series ● Ensure that the clearance around the back of 3/8” 1/2” 5/8” the unit is more than 20cm and left side is more 9.53mm 12.7mm 16.0mm Piping than 10cm. 1/4”...
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Page 9: Flaring Work And Connection Of Piping
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series side. 2.4.1.4 Flaring work 2. Always use wall hole conduit when drilling metal grid, metal plate or the like. ● Carry out flaring work using flaring tool as 2.4 FLARING WORK AND CONNECTION OF PIPING shown below. - Page 10 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series adjacent diagram for example). This will allow piping and cable routing to be completed without damaging the unit. 2.4.2.1 For rear right piping Note: When viewed from the front of the indoor unit.
- Page 11 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series adjacent diagram. indoor unit from the outdoor unit through the piping hole. ● Do not connect the cable to the indoor unit. ● Make a small loop with the cable for easy connection later.
- Page 12 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series wrapping them with vinyl tape over the range within which they fit into the rear piping housing section. ● Tighten the flare nut with a wrench, in accordance with the following table. 2.4.2.2.8 Set the piping and the drain hose to the back of the chassis with the tubing holder.
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Page 13: Connecting The Cable Between Indoor Unit And Outdoor Unit
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series sufficiently tighten the flare nut by hand. 2.5 CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT CAUTION Ensure that all electrical work complies with relevant Standards and Supply Authority 2.4.3.2 Finally, tighten the flare nut with torque Service Rules. - Page 14 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series those of the indoor unit.) specifically for the air conditioner. As for the 1. Lift the front panel up and remove the method of wiring, be guided by the circuit window cover from the indoor unit by diagram posted on the inside of control cover.
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Page 15: Checking The Drainage And Forming The Piping
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 2.6.2.2 In cases where the outdoor unit is installed 2.6 CHECKING THE DRAINAGE AND below the indoor unit perform the following. FORMING THE PIPE ● Tape the piping, drain hose and connecting 2.6.1 Checking the drainage 2.6.1.1 To remove the front panel from the indoor cable from down to up. -
Page 16: Air Purging
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series Indoo r unit 2.7 AIR PURGING 2.7.1 Air purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. Ou tdoor u nit ● Pressure in the system rises. ●... - Page 17 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series Indoor unit on the indoor unit connection or outdoor unit connections using a soft brush to check for leakage of the connecting points of the piping. 2. If bubbles come out, the pipes have leakage. Note: Outdoor unit A: Lo stop valve...
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Page 18: Test Running
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series if the system is not going to be used for a long 2.8 TEST RUNNING 1. Check that all tubing and wiring have been period. properly connected. 2.8.3 Operating the unit with the switch on the 2. - Page 19 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series PUMP DOWN This is performed when the unit is to be relocated or the refrigerant circuit is serviced. Pump Down means collecting all refrigerant in the outdoor unit without loss of refrigerant gas. CAUTION: Be sure to perform Pump Down procedure with the unit in cooling mode.
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Page 20: Refrigeration Cycle Diagram
3 TROUBLESHOOTING GUIDE 3.1 REFRIGERATION CYCLE DIAGRAM For Reverse Cycle Type For Cooling Only Type... -
Page 21: Troubleshooting Guide
3.2 TROUBLESHOOTING GUIDE In general, possible trouble is classified in three kinds. One is called Starting Failure which is caused from an electrical defect, another is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application, and the other is called the Structure Damage. ROOM AIRCONDITIONER VOLTAGE LIMITS: MODELS NAMEPLATE RATING... - Page 22 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series The following tables will help to find where error happened (LED on indoor unit): For models adopting electrical function (part I) (cooling only models): Operation Timer Failure phenomenon lamp lamp Indoor fan speed has been out of control for...
- Page 23 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series Cur r ent protectio n (LED indi cates) Check t he indoor air filt er. Check the out door condenser. Che ck t he positio n If wro ng, t he unit w ill and wiring of tem p result in current sen sor (all of the m).
- Page 24 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series Abnorm al n oise from the indoor unit Check t he Does it happ en with Does it happ e n in Does it just happ en It is b ecause of the h eat swing mo to r.
- Page 25 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series PROBLEM CAUSE REMEDY Outdoor transformer Replace if failure. Insufficient failure cooling or Indoor PCB failure Replace the PCB if the photon coupling on indoor PCB is failure. heating. Indoor PCB failure Replace after checked failure.
- Page 26 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series PROBLEM CAUSE REMEDY Air filter Clean or replace if restricted. Determine if the unit is properly sized for the area to be cooled or Unit undersized heated. Condenser and Clean or replace if restricted.
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Page 27: Wiring Diagram
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 4 WIRING DIAGRAM 4.1 WIRING DIAGRAM FOR INDOOR UNITS 4.1.1 For models: EL-KF20GW/N2Y-A(B) EL-KF26GW/N2Y-A(B) EL-KF20GW/Y-A(B) EL-KF26GW/Y-A(B) EL-KF32GW/Y-A(B) EL1-KF20GW/Y-A(B) EL1-KF26GW/Y-A(B) EL1-KF32GW/Y-A(B) EL1-KF20GW/N2Y-A(B) EL1-KF26GW/N2Y-A(B) STEP MOT OR INDOOR MOTOR POWER SUPPLY BROWN 3 2 1 1 2 3 4 5... - Page 28 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 4.1.3 For models: EL-KF36GW/N2Y-A(B) EL-KF36GW/Y-A(B) SEL1-KF36GW/Y-A EL1-KF35GW/N2Y-A(B) ST E P MOTOR INDOOR MOTOR POWER SUPPLY BROWN 1 2 3 4 5 3 2 1 3 2 1 1 2 3 4 5 CN12 BLUE BLACK...
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Page 29: Indoor Unit
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 4.1.5 For models: EL-KFR50GW/N2Y-A(B) EL-KFR50GW/Y-A EL-KT3FR53GW/Y-T1 I ND OOR MOTOR POWER SUPPLY BROWN 1 2 3 4 5 3 2 1 1 2 3 4 5 3 2 1 CN12 BLUE B LA CK... - Page 30 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 4.1.7 For models: EL-KF90GW/Y-A(B) EL-KFR90GW/Y-A(B) EL-KF90GW/SY-A(B) EL-KFR90GW/SY-A(B) AU-KF85GW/Y-A(B) AU-KF85GW/Y-A(B) WIRING D IAGRAM TRANS1 (INDOOR UNIT) XS2 XP2 CN 5 UNIT1 CN 4 CODE PART NAME CN 3 UNIT1 MAIN CONTROL PCB FUSE 3.15A/250V UNIT2...
- Page 31 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 4.1.9 For models: SEL-KFR20GW/Y-A(B) SEL-KFR26GW/Y-A(B) SEL-KFR32GW/Y-A(B) STEP MOTOR INDOOR MOTOR POWE R SUPPLY BL ACK 1 2 3 4 5 3 2 1 GREE N 3 2 1 1 2 3 4 5 CN12 WHITE...
- Page 32 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 4.1.11 For models: SEL-KFR53GW/Y-A(B) INDOOR MO TOR POWER SUP PL Y BLACK 1 2 3 4 5 3 2 1 GREEN 1 2 3 4 5 3 2 1 CN12 C N4 C N2...
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Page 33: Wiring Diagram For Outdoor Units
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 4.2 WIRING DIAGRAM FOR OUTDOOR UNITS 4.2.1 For models: EL-KF20GW/N2Y-A(B) EL-KF26GW/N2Y-A(B) EL-KF36GW/N2Y-A(B) EL-KF20GW/Y-A(B) EL-KF26GW/Y-A(B) EL-KF32GW/Y-A(B) EL-KF36GW/Y-A(B) EL1-KF20GW/Y-A(B) EL1-KF26GW/Y-A(B) EL1-KF32GW/Y-A(B) EL1-KF20GW/N2Y-A(B) EL1-KF26GW/N2Y-A(B) EL1-KF35GW/N2Y-A(B) SEL-KF20GW/Y-A(B) SEL-KF26GW/Y-A(B) SEL-KF32GW/Y-A(B) SEL1-KF26GW/Y-A(B) SEL1-KF36GW/Y-A(B) 4.2.2 For models: EL-KFR20GW/N2Y-A(B) EL-KFR26GW/N2Y-A(B) EL-KFR36GW/N2Y-A(B) - Page 34 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 4.2.3 For models: EL-KF50GW/N2Y-A(B) EL-KF50GW/Y-A(B) EL-KT3F53GW/Y-T2 EL-KT3F53GW/Y-T1 SEL-KF53GW/Y-A(B) INDOOR UNIT OUTDOOR UNIT Y&G BLACK BLACK OVERLOAD BLACK RELAY COMPRESSOR MOTOR BLUE WHITE BLUE COMPRESSOR CAPACITOR FAN CAPACITOR 4.2.4 For models: EL-KFR50GW/N2Y-A(B) EL-KFR50GW/Y-A(B) EL-KT3FR53GW/Y-T1...
- Page 35 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 4.2.5 For models: EL-KF61GW/N2Y-A(B) EL-KF70GW/N2Y-A(B) EL-KF61GW/Y-A(B) EL-KF70GW/Y-A(B) SEL-KF61GW/Y-A SEL-KF70GW/Y-A EL-KT3F70GW/Y-T1 EL-KT3F70GW/Y-T2 WIRING DIAGRAM FAN2 BLACK RE D WHITE (OUTDOOR UNIT) BLUE CAP2 COMP BLACK TRA NS1 CODE PART NAME B LUE UNIT 1 OUTDOOR CONTROL PCB...
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Page 36: Outdoor Unit
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 4.2.7 For models: EL-KF90GW/Y-A(B) BLACK FAN2 WHITE WHITE BLACK WIRING DIAGRAM CAP2 CAP1 BROWN (OUTDOOR UNIT) BROWN BLUE BLACK BLACK WHITE CAP3 Y&G BLACK COMP CODE PART N AME BLACK UNIT1 OUTDOOR CONTROL P CB... - Page 37 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 4.2.9 For models: EL-KF90GW/SY-A(B) FAN2 WHITE BLACK V(T2) U(T1) WIRING DIAGRAM (OUTDOOR UNIT) BL UE WHITE COMP BLUE Y&G CAP3 RE D W(T3) B LU E CODE PAR T NAM E TRANS1 BLA CK UNIT1...
- Page 38 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 4.2.11 For models: AU-KF61GW/Y-A(B) WIRING DIAGRAM F AN 2 BLACK W HITE (OUTDOOR UNIT) BLUE CAP2 COMP TRANS1 B LUE CODE PART NAME GR EE N Y EL LOW UNIT1 OUTDOOR CONTROL PCB Y EL LOW...
- Page 39 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 4.2.13 For models: AU-KF70GW/Y-A(B) WIRING DIAGRAM FAN2 BLACK WH ITE (OUTDOOR UNIT) BLUE CAP2 COMP TRANS1 B LUE CO DE P ART NA ME GREEN YELLOW UN IT 1 OUTD OOR CO NTROL PC B YE LLOW CO MP...
- Page 40 GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 4.2.15 For models: AU-KF85GW/Y-A(B) 4.2.15 For models: AU-KFR85GW/Y-A(B)
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Page 41: Exploded Views
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 5 EXPLODED VIEWS (See attached files.) 6 REPLACEMENT PARTS LIST (See attached files.) 7 SPECIFICATIONS (See attached files.) -
Page 42: Model Check List
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series 8 MODEL CHECK LIST Midea model Elux model Midea model Elux model EL-KF20GW/N2Y-A(B) MSE-07CRN2 EL-KFR20GW/N2Y-A(B) MSE-07HRN2 EL-KF26GW/N2Y-A(B) MSE-09CRN2 EL-KFR26GW/N2Y-A(B) MSE-09HRN2 EL-KF36GW/N2Y-A(B) MSE-12CRN2 EL-KFR36GW/N2Y-A(B) MSE-12HRN2 EL-KF50GW/N2Y-A(B) MSE-18CRN2 EL-KFR50GW/N2Y-A(B) MSE-18HRN2 EL-KF61GW/N2Y-A(B) MSE-21CRN2 EL-KFR61GW/N2Y-A(B)