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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)
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
1
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 2.6 CHECKING THE DRAINAGE AND FORMING THE PIPING ...................................................................14 2.7 AIR PURGING...........................................................................................................................................15 2.8 TEST RUNNING .......................................................................................................................................17 3. TROUBLE SHOOTING GUIDE 3.1 Refrigeration Cycle Diagram.....................................................................................................................19 3.2 TROUBLE SHOOTING GUIDE..................................................................................................................20 4. WIRING DIAGRAM 4.1 Wiring diagram for indoor units……..........................................................................................................26 4.2 Wiring diagram for outdoor units...............................................................................................................32 5. EXPLODED VIEWS…………………………………………...........................................................................40 6 SPECIFICATIONS........................................................................................................................................40 7 SPARE PARTS LIST……………………………………………………..………….……………………………..40 8 MODEL CHECK LIST……………………………………………………………………………………………….40 1. PREFACE This SERVICE MANUAL provides various servicing information, including the mechanical and electrical parts, etc. This room air conditioner was manufactured and assembled under a strict quality control system. The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit. 1.1 SAFETY PRECAUTIONS 1. When servicing the unit, set the POWER SWITCH to OFF and unplug the power cord. 2. Inspect the service cord for damage or wear.
If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 3. After servicing the unit, make an insulation resistance test to protect the customer from being exposed to
shock hazards. 1.2 INSULATION RESISTANCE TEST 1. Unplug the power cord and connect a jumper lead between the two (2) live pins. 2. The grounding conductor (yellow/green) is to be open. 3. Measure the resistance value with an ohm meter between the jumped lead and each exposed metallic part
on the equipment at all the positions (except OFF) of the ROTARY SWITCH or POWER SWITCH. 4. The value should be over 1MΩ.
2
1.3 FEATURES Error self diagnosis function. Anti-icing function at cooling mode. Anti-cold air function at heating mode. Auto-defrosting and heating recovering function at heating mode. Outdoor unit overload current protection. Temperature protection of the outdoor compressor top. Restart protection for the compressor. 24 hours on/off mode time setting. Protection against over-load or too-low current input through alternating current.
1.4 CONTROL LOCATIONS For reverse cycle models:
TIMER POWER
AUTO℃
DEFROST
For cooling only models:
TIMER POWER
AUTO℃
A UT O
COOLDRY
FAN
HIGHMEDLOW
TEMP
M ODE ON/OFF FAN
SWING ECONOM Y TIME R
RESET LOCK
R
CANCEL
D IGITAL DISP LAY
HEAT
LED lamp: POWER AUTO TIMER DEFROST Remote controller: LCD display Mode button: Select the operation mode, AUTO,
COOL, DRY, HEAT (Reverse cycle models only) and FAN.
Fan speed button: Select the Fan speed, AUTO, LOW, MED, HIGH.
ON/OFF button: Press this button to operation the unit, again to stop.
Temperature setting up button: Press this button to increase temperature setting or adjust the TIMER in a clockwise direction.
Temperature setting down button: Press this button to decrease temperature setting or adjust the TIMER in a counter-clockwise direction.
Swing button: Press this button to activate the auto swing, again to stop.
Economy button: Push this button to set the economical operation mode.
Timer button: Press this button to set TIMER ON and/or TIMER OFF.
Cancel button: Press this button to cancel TIMER ON and TIMER OFF.
Lock button: Press this button to lock all button except this button.
Reset button: Press this button to reset all settings to original.
Digital display button: Press this button to activate/eliminate the digital temperature display on the indoor unit.
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
3
1.5 OUTSIDE DIMENSIONS 1.5.1 Indoor units:
A: width (mm) B: Depth (mm) C: Height (mm)
Unit A(mm) B(mm) C(mm) D(mm)Size A 210 750 250 214 Size B 213 815 282 217 Size C 228 1000 298 232 Size D 240 1080 330 245 Size E 230 1250 325 230
Model list: Size A indoor units:
Size B indoor units:
Size C indoor units:
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)
AU-KF61GW/Y-A(B) AU-KFR61GW/Y-A(B)
AU-KF70GW/Y-A(B) AU-KFR70GW/Y-A(B)
EL-KT3F70GW/Y-T2 EL-KT3F70GW/Y-T1 EL-KT3FR70GW/Y-T1
SEL-KF61GW/Y-A(B) SEL-KFR61GW/Y-A(B)
SEL-KF70GW/Y-A(B) SEL-KFR70GW/Y-A(B)
Size E indoor units:
1.5.2 Installation plate For Size A indoor unit:
750
4525
0
Right refrigerantpipe hole D65
Installation plateIndoor unit outline
Left refrigerantpipe hole D65
150mm or more to c eiling
120mm or moreto wall
120mm or moreto wall
For Size B indoor unit:
Indoor unit outline
120mm or moreto wall 120mm or more
to wall
Left refrigerantpipe hole D65 Right refrigerant
pipe hole D65
Installation plate
280
815
150mm or more t o ceiling
50
50
For Size C indoor unit:
50
1000
49
9055
50
Righ t pipe hole D 65
120mm or more to the wal l
Indoor unit outl ineInstallation plate
150mm or m ore to the ceiling
Left pipe hole D65
120mm or more to the w all
EL-KF20GW/N2Y-A(B) EL-KFR20GW/N2Y-A(B)
EL-KF26GW/N2Y-A(B) EL-KFR26GW/N2Y-A(B)
EL-KFR20GW/N1Y-A(B) EL-KFR26GW/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)
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)
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)
SEL1-KF26GW/Y-A(B) SEL1-KFR26GW/Y-A(B)
EL-KF36GW/N2Y-A(B) EL-KFR36GW/N2Y-A(B)
EL-KFR36GW/N1Y-A(B) EL-KF36GW/Y-A(B) EL-KFR36GW/Y-A(B)
EL1-KF35GW/N2Y-A(B) EL1-KFR35GW/N2Y-A(B)
SEL1-KF36GW/Y-A(B) SEL1-KFR36GW/Y-A(B)
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)
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-KFR85GW/Y-A(B)
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
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For Size D indoor unit:
150 or more to the ceiling
Hooked Part
Indoor Unit Outline
Hooked Part
Left Pipehole D95
120mm or more to the wall
432
58
465 465115
50
Right pipehole D95
5850
115
Hooked Part
4321080
120mm or more tothe wall
108
22
For Size E indoor unit:
150mm or more to the ceiling
1250
815 257178
Ho oked Part Hooker Part
120mm or more to the wall120mm or more
to the wal l
325
55
55
55
58Left p ipehole D95 Right pipe ho le D95
Indoor unit outl ine
1.5.3 Outdoor units:
A: Depth (mm) B: Width (mm) C: Height (mm) Unit Size F Size G Size H Size I Size J
A(mm) 235 250 285 335 330
B(mm) 700 780 760 845 895
C(mm) 535 540 590 695 860
D(mm) 275 298 315 360 355
E(mm) 120 114.5 110 140 141.3
F(mm) 458 549 530 560 589.6
Size F outdoor units:
EL-KF20GW/N2Y-A(B) EL-KFR20GW/N2Y-A(B)
EL-KF26GW/N2Y-A(B) EL-KFR26GW/N2Y-A(B)
EL-KFR20GW/N1Y-A(B)
EL-KF20GW/Y-A(B) EL-KFR20GW/Y-A(B)
EL-KF26GW/Y-A(B) EL-KFR26GW/Y-A(B)
EL1-KF20GW/Y-A(B) EL1-KFR20GW/Y-A(B)
EL1-KF26GW/Y-A(B) EL1-KFR26GW/Y-A(B)
EL1-KF20GW/N2Y-A(B) EL1-KFR20GW/N2Y-A(B)
EL1-KF26GW/N2Y-A(B) EL1-KFR26GW/N2Y-A(B)
SEL-KF20GW/Y-A(B) SEL-KFR20GW/Y-A(B)
SEL-KF26GW/Y-A(B) SEL-KFR26GW/Y-A(B)
Size G outdoor units: EL-KFR26GW/N1Y-A(B) EL-KFR36GW/N1Y-A(B)
EL-KF32GW/Y-A(B) EL-KFR32GW/Y-A(B)
EL-KF36GW/Y-A(B) EL-KFR36GW/Y-A(B)
EL1-KF32GW/Y-A(B) EL1-KFR32GW/Y-A(B)
EL1-KF35GW/N2Y-A(B) EL1-KFR35GW/N2Y-A(B)
SEL-KF32GW/Y-A(B) SEL-KFR32GW/Y-A(B)
SEL1-KF26GW/Y-A(B) SEL1-KFR26GW/Y-A(B)
Size H outdoor units: EL-KF36GW/N2Y-A(B) EL-KFR36GW/N2Y-A(B)
SEL1-KF36GW/Y-A(B) SEL1-KFR36GW/Y-A(B)
Size I outdoor units: 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-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)
AU-KF61GW/Y-A(B) AU-KFR61GW/Y-A(B)
AU-KF70GW/Y-A(B) AU-KFR70GW/Y-A(B)
EL-KT3F53GW/Y-T2 EL-KT3F53GW/Y-T1 EL-KT3FR53GW/Y-T1
EL-KT3F70GW/Y-T1 EL-KT3FR70GW/Y-T1
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)
Size J outdoor units: 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-KFR85GW/Y-A(B)
EL-KT3F70GW/Y-T2
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
5
2 INSTALLATION 2.1 TOOLS NEEDED FOR INSTALLATION Level gauge Screwdriver Electric drill Hole core drill ( φ85mm or φ115mm depending
on Model) Flaring tool set Specified torque wrenches: 1.8kgm, 4.2kgm,
5.5kgm, 6.6kgm (Vary depending on model No.)
Spanner (half union) A glass of water Hexagonal wrench (4mm) Gas-leak detector Vacuum pump Gauge manifold User’s manual Thermometer
2.2 ITEMS REQUIRED FOR INSTALLING THE UNIT
No. Name of Accessories Quantity 1 Installation Plate 1 2 Self-tapping Screw ST3.9x25
(Type “A”) 8
3 Plastic Expansion Sheath 8 4 Drain Joint 1 5 Wrapping Tape 6 Connection Pipe Assembly
(Detail in below table) 7 Connecting Cable 8 Additional Drain Pipe (Outer
Diameter15.5mm) 9 Insulation Materials 10 Cable Tie (5~10)
Parts purchasedseparately
11 Remote Control Holder 1 12 Self-tapping Screw ST2.9x10
(Type “B”) 2
13 Remote Control 1 Note: Excluding the parts that are provided with the unit detailed above all other parts must be purchased separately.
Connection Pipe Assembly
model Liquid side pipe Gas side pipe7,000Btu/h 9,000Btu/h
6.35mm 1/4”
9.53mm 3/8”
12,000Btu/h 18,000Btu/h
6.35mm 1/4”
12.7mm 1/2”
21,000Btu/h 24,000Btu/h 30,000Btu/h
9.53mm 3/8”
16mm 5/8”
NOTE: For pipes used on R410A system, the
wall thickness of the pipes should be no less than 0.7mm. Otherwise, the pipes may be broken when using.
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
6
Typical installation
CAUTIONS: 1. Ensure that the space around the left and
right of the indoor unit is more than 12cm. 2. The indoor unit should be installed allowing a
minimum clearance of 15cm from the ceiling. 3. Use a stud finder to locate studs to prevent
unnecessary damage to the wall. 4. For optimum performance the Indoor Unit
should be installed on the wall in areas where the height from the floor to the ceiling is not more than 2.3 meters.
5. A minimum pipe run of 3 meters is required to minimize vibration & excessive noise.
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. Directions A, B and C should be free from obstructions.
2.3 INSTALLATION OF INDOOR UNIT AND
OUTDOOR 2.3.1 Indoor unit ● Do not expose the indoor unit to heat or steam. ● Select a place where there are no obstacles in front or around the unit. ● Make sure that condensation drainage can be conveniently routed away. ● Do not install near a doorway. ● Ensure that the space on the left and right of the unit is more than 12cm. ● Use a stud finder to locate studs to prevent unnecessary damage to the wall. ● For optimum performance the indoor unit should be installed on the wall in areas where the height from the floor to the ceiling is not more than 2.3 meters. ● A minimum pipe run of 3 meters is required to minimize vibration & excessive noise. ● 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. ● The indoor unit should be installed allowing a minimum clearance of 15cm from the ceiling. ● Any variations in pipe length will/may require adjustment to refrigerant charge (Refer to item 2.3.3).
More th an 1.7mLess than 2.3m
More th an 1 5cm
More than 12cmMore than 12cm
2.3.2 Outdoor unit ● If an awning is built over the outdoor unit to prevent direct sunlight or rain exposure, make sure that heat radiation from the condenser is not restricted.
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
7
● Ensure that the clearance around the back of the unit is more than 20cm and left side is more than 10cm. ● The front of the unit should have more than 100cm of clearance and the connection side (right side) should have more than 60cm of clearance. ● Do not place animals and plants in the path of the air inlet or outlet. ● Take the air conditioner weight into account and select a place where noise and vibration will not be an issue. ● Select a place so that the warm air and noise from the air conditioner do not disturb neighbors.
More than 20cm
More than 60cm
More than 10cm
M or e tha n 100cm Rooftop installation: ● If the outdoor unit is installed on a roof structure, be sure to level the unit. ● Ensure the roof structure and anchoring method are adequate for the unit location. ● Consult local codes regarding to rooftop mounting. ● If the outdoor unit is installed on roof structures or external walls, this may result in excessive noise and vibration, and may also be classed as a non serviceable installation. 2.3.3 Piping length and elevation
GAS 3/8”
9.53mm
1/2”
12.7mm
5/8”
16.0mmPiping
LIQUID 1/4”
6.35mm
1/4”
6.35mm
3/8”
9.53mm
Standard Length(m) 5 5 5 Max. Elevation B (m) 5 5 5 Max. Length A (m) 10 10 10 Additional Refrigerant (g/m)
30 30 65
Cautions: ● Capacity is based on standard length and maximum allowance length is on the basis of reliability. ● Oil trap should be installed every 5~7 meters. ● When the connecting pipe is longer than 5 meters, Additional refrigerant should be added into the unit according to the above table through the service port on the “LO” valve on outdoor unit. 2.3.4 Fitting the installation plate Fit the Installation Plate and drill holes in the wall according to the wall structure and corresponding mounting points on the installation plate. 1. Fit the installation plate horizontally on structural parts of the wall with spaces around the installation plate (Detailed on page 3 as applicable). 2. If the wall is made of brick, concrete or the like, drill eight (8) 5mm diameter holes in the wall. Insert Plastic Expansion Sheath for appropriate mounting screws. 3. Fit the installation plate on the wall with eight (8) type “A” screws.
2.3.5 Drill a hole in the wall 1. Determine hole positions according to the diagram detailed on page 3 as applicable. Drill one (1) hole (φ85mm for those models need φ65mm pipe hole or φ115mm for models needφ95mm pipe hole) slanting slightly to outdoor
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
8
side. 2. Always use wall hole conduit when drilling metal grid, metal plate or the like.
2.4 FLARING WORK AND CONNECTION OF
PIPING The main cause for gas leakage is due to defects in flaring work. Carry out correct flaring work using the following procedure. 2.4.1 Flaring work 2.4.1.1 Cut the pipes and the cable. ● Use the piping kit accessory (if applicable) or the pipes purchased locally. ● Measure the distance between the indoor and the outdoor unit. ● Cut the pipes a little longer than measured distance. ● Cut the cable 1.5m longer than the pipe length.
2.4.1.2 Burrs removal ● Completely remove all burrs from the cut cross section of pipe/tube. ● Place the end of the copper tube/pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the tubing.
2.4.1.3 Putting flare nut on ● Remove flare nuts attached to indoor and outdoor unit, then put them on pipe/tube having completed burr removal. (Note: It is not possible to put them on after flaring work.)
2.4.1.4 Flaring work
● Carry out flaring work using flaring tool as shown below.
“A” (mm) Out diameter Max. Min.
1/4” (6.35mm) 1.3 0.7 3/8” (9.53mm) 1.6 1.0 1/2” (12.7mm) 1.8 1.0 5/8” (16.0mm) 2.4 1.8
Hold copper pipe firmly in a die according to the dimension shown in the table above. 2.4.1.5 Check ● Compare the flared work with the adjacent diagram. ● If flare is found to be defective, cut off the flared section and do flaring work again.
2.4.2 Connection of pipes - Indoor ● Prepare the indoor unit’s piping and drain hose for installation through the wall. ● Remove the tubing retainer (see illustration right) and pull the tubing and drain hose away from chassis (If required). For some models this is not needed. Replace the tubing retainer in its original position.
CAUTION When installing the indoor unit, be sure to remove the relevant sections where required (see
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
9
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.
2.4.2.1.1 Route the indoor tubing and the drain hose in the direction of rear right. 2.4.2.1.2 Insert the connecting cable into the 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. 2.4.2.1.3 Tape the tubing, drain hose and the connecting cable. Be sure that the drain hose is located at the lowest side of the bundle. Locating at the upper side can cause drain pan to overflow inside the unit.
Note: If the drain hose is routed inside the room, insulate the hose with an insulation material so that dripping from "sweating" (condensation) will not damage furniture or floors. *Foamed polyethylene or equivalent is recommended. 2.4.2.1.4 Insert the piping, drain hose and the connecting cable into the piping hole. 2.4.2.1.5 Set the piping and the drain hose to the back of the chassis with the tubing holder. ● Set the tubing retainer into position and tighten screw.
2.4.2.1.6 Locating the indoor unit ● Hook the indoor unit onto the upper portion of the installation plate (Engage the hooks of the installation plate into the openings at the rear top of the indoor unit). Ensure that the hooks are properly seated on the installation plate by moving the indoor unit left and right. ● Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots (clicking sound).
2.4.2.1.7 Connecting the piping to the indoor unit and the drain hose to drain pipe. ● Align the centre of the piping and sufficiently tighten the flare nut by hand.
● Tighten the flare nut with a wrench, in accordance with the following table.
Outside Diameter
Tightening Torque (Kg.m)
Additional Tightening
Torque (Kg.m)1/4” (6.35mm) 1.6 2.0 3/8” (9.53mm) 3.0 3.5 1/2” (12.7mm) 5.0 5.5 5/8” (16.0mm) 7.5 8.5 ● When extending the drain hose of the indoor unit, install the drain pipe extension as shown in
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adjacent diagram.
2.4.2.1.8 Wrap the insulation material around the connecting portion.
● Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation material. Bind them together with vinyl tape so that there is no gap.
● Wrap the area which accommodates the rear piping housing section with vinyl tape.
● Bundle the piping and drain hose together by wrapping them with vinyl tape over the range within which they fit into the rear piping housing section.
2.4.2.2 For rear left piping Note: When viewed from the front of the indoor unit.
2.4.2.2.1 Route the indoor tubing and the drain hose to the required piping hole position in the direction of left. 2.4.2.2.2 Insert the connecting cable into the
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. 2.4.2.2.3 Tape the drain hose and the connecting cable. Be sure that the drain hose is located at the lowest side of the bundle. Locating at the upper side can cause drain pan to overflow inside the unit.
Note: If the drain hose is routed inside the room, insulate the hose with an insulation material so that dripping from "sweating" (condensation) will not damage furniture or floors. *Foamed polyethylene or equivalent is recommended. 2.4.2.2.4 Insert the piping, drain hose and the connecting cable into the piping hole.
2.4.2.2.5 Indoor unit installation ● Hang the indoor unit from the hooks at the top of the installation plate. ● Insert a spacer between the indoor unit and the installation plate to separate the bottom of the indoor unit from the wall.
2.4.2.2.6 Connecting the piping to the indoor unit and the drain hose to drain pipe. ● Align the centre of the piping and sufficiently tighten the flare nut by hand.
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● Tighten the flare nut with a wrench, in accordance with the following table.
Outside Diameter
Tightening Torque (Kg.m)
Additional Tightening
Torque (Kg.m)1/4” (6.35mm) 1.6 2.0 3/8” (9.53mm) 3.0 3.5 1/2” (12.7mm) 5.0 5.5 5/8” (16.0mm) 7.5 8.5
● When extending the drain hose of the indoor unit, install the drain pipe extension as shown in adjacent diagram.
2.4.2.2.7 Wrap the insulation material around the piping connections.
● Overlap the connection pipe heat insulation
and the indoor unit pipe heat insulation material. Bind them together with vinyl tape so that there is no gap.
● Wrap the area which accommodates the rear piping housing section with vinyl tape.
● Bundle the piping and drain hose together by
wrapping them with vinyl tape over the range within which they fit into the rear piping housing section.
2.4.2.2.8 Set the piping and the drain hose to the back of the chassis with the tubing holder. ● Set the tubing retainer into position and
tighten screw.
2.4.2.2.9 Reroute the piping and the drain hose across the back of the chassis, for rear left side external passage.
Pi ping for passa geth rou gh piping h o le
2.4.2.2.10 Locating the indoor unit ● Remove the spacer. ● Hook the indoor unit onto the upper portion of the installation plate. (Engage the two hooks of the installation plate into the openings at the rear top of the indoor unit.) ● Ensure that the hooks are properly seated on the installation plate by moving the indoor unit left and right. ● Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots (clicking sound).
2.4.3 Connection of pipes - outdoor 2.4.3.1 Align the centre of the piping and
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sufficiently tighten the flare nut by hand.
2.4.3.2 Finally, tighten the flare nut with torque wrench until the wrench clicks. ● Tighten the flare nut with a wrench, in accordance with the following table.
Outside Diameter
Tightening Torque (Kg.m)
Additional Tightening
Torque (Kg.m)1/4” (6.35mm) 1.6 2.0 3/8” (9.53mm) 3.0 3.5 1/2” (12.7mm) 5.0 5.5 5/8” (16.0mm) 7.5 8.5
2.5 CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT
Max. current (A)
Circuit Breaker / Fuse Rating (A)
Wire Size (mm2)
<=8 10 >=1.0 >8 & <=12.5 16 >=1.5 >12.5 & <=16 20 >=2.5 >16 & <=25 32 >=4.0 >25 & <=32 40 >=6.0
Max. current (A): Detail in SPECIFICATIONS list. Note: To be used as a guide only. 2.5.1 Connect the cable to the indoor unit ● Connect the cable to the indoor unit by connecting the wires to the terminals on the control box individually according to the outdoor unit connection. (Refer to Wiring diagram.) (Ensure that the color of the wires of the outdoor unit and the terminal number are the same as
CAUTION Ensure that all electrical work complies with relevant Standards and Supply Authority Service Rules. An individual branch Circuit Breaker/Fuse must be used with this Air Conditioner. See the table following for electrical requirements. Notes: ● Power Source and Power Cord specifications must comply with requirements following. ● Circuit Breaker or Fuse specified in this manual must be installed in the power supply circuit. ● For your safety and protection, this unit is earthed through the power cord plug when plugged into a matching wall receptacle. ● Do not connect two power cords together to supply power to the air conditioner. ● Do not extend the power cable conductors by cutting. ● Power supply should be in the range of 90%~110% of rated voltage. ● Refer to the attached Electrical Connection Diagram located on the panel of the outdoor unit to connect the wire.
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those of the indoor unit.) 1. Lift the front panel up and remove the window cover from the indoor unit by loosening the screw. 2. Connect wires to the Indoor Unit terminals from the Outdoor Unit as identified by their colors. 3. Secure the cable with the cord clamp. 4. Wrap wires (conductors) that were not connected with insulating tape so that they do not touch any electrical or metal parts.
Notes: Wrong wire connection may cause some electrical parts to malfunction. The length of the power supply cord should be at least 1.8m measured from the power supply cord entry of the cabinet to the middle of the live pin of the plug.
2.5.2 Connect the cable to the outdoor unit 2.5.2.1 Remove the control cover from the unit by loosening the screw. Connect the wires to the terminals on the control board individually. 2.5.2.2 Secure the cable onto the control board with the cord clamp. 2.5.2.3 Re-fix the control cover to the original position with the screw. 2.5.2.4 Use a recognized circuit breaker (Refer to table on page 11.) between the power source and the unit. An isolation device to adequately disconnect all supply lines must be fitted.
CAUTIONS: After confirming the above conditions, prepare the wiring as follows: 1) Never fail to have an individual power circuit
specifically for the air conditioner. As for the method of wiring, be guided by the circuit diagram posted on the inside of control cover.
2) The screws which fasten the wiring in the casing of electrical fittings may come loose from vibrations to which the unit is subjected during the course of transportation. Check them and make sure that they are all tightly fastened. If they are loose, it could cause burn-out of the wires.
3) Specification of power source. 4) Confirm that electrical capacity of the
installation is sufficient. 5) Ensure that the starting voltage is maintained
at more than 90 percent of the rated voltage marked on the name plate.
6) Confirm that the cable thickness is as specified in the power source specification. Particularly note the relation between cable length and thickness. (Refer to page 11.)
7) Always install a Residual Current Device (RCD) in wet or moist area.
8) The following may be caused by voltage drop. Vibration of a contactor, which will damage
the contact point, fuse blowing, disturbance of the normal function of the overload.
9) The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm in each active (phase) conductor.
If a power plug is not to be used, provide a Circuit Breaker/Fuse between power source and the unit as shown in adjacent diagram.
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2.6 CHECKING THE DRAINAGE AND FORMING THE PIPE
2.6.1 Checking the drainage 2.6.1.1 To remove the front panel from the indoor unit. ● Pull the lower left and right sides of the grille toward you and lift it up.
2.6.1.2 To check the drainage. ● Pour a glass of water on the evaporator. ● Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit.
2.6.1.3 Drain piping ● The drain hose should point downward for easy drain flow. ● Do not make drain piping similar to diagrams shown below.
2.6.2 Form the piping 2.6.2.1 Form the piping by wrapping the connecting portion of the indoor unit with insulation material and secure it with narrow vinyl tape and wide vinyl tape. ● If you want to connect an additional drain hose, the end of the drain outlet should be routed above the ground. Secure the drain hose appropriately.
2.6.2.2 In cases where the outdoor unit is installed below the indoor unit perform the following. ● Tape the piping, drain hose and connecting cable from down to up. ● Secure the tapped piping along the exterior wall using saddle or equivalent.
2.6.2.3 In cases where the outdoor unit is installed above the indoor unit perform the following. Tape the piping and connecting cable from down to up. Secure the taped piping along the exterior wall. Form a trap to prevent water entering the room. Fix the piping onto the wall by saddle or equivalent.
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2.7 AIR PURGING 2.7.1 Air purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. ● Pressure in the system rises. ● Operating current rises. ● Cooling (or heating if applicable) efficiency drops. ● Moisture in the refrigerant circuit may freeze and block capillary tubing. ● Water may lead to corrosion of parts in the refrigeration system. Therefore, the indoor unit and tubing between the indoor and outdoor unit must be leak tested and evacuated to remove any non-condensable substance and moisture from the system. 2.7.2 Air purging with vacuum pump 2.7.2.1 Preparation ● Check that each tube (both liquid and gas side tubes) between the indoor and outdoor units have been properly connected and all wiring for the test run has been completed. Remove the service valve caps from both the gas and the liquid side on the outdoor unit. Note that both the liquid and the gas side service valves on the outdoor unit are kept closed at this stage. 2.7.2.2 Leak test ● Connect the manifold set (with pressure gauges) and dry nitrogen gas cylinder to this service port with charge hoses. ● Pressurizes the system to no more than 1MPa (Approx. 145psi) with dry nitrogen gas and close the cylinder valve when the gauge reading reaches 1MPa (Approx. 145psi). Next, test for leaks with liquid soap.
Lo Hi
Indoo r unit
Ou tdoor unit
Manifol d set
Pressuregauge
Charge hose
Nitrogen gascyli nder ( in vert icalstanding position )
● Do a leak test of all joints of the tubing (both indoor and outdoor) and both gas and liquid side service valves. Bubbles indicate a leak. Be sure to wipe off the soap with a clean cloth. ● After the system is found to be free of leaks,
relieve the nitrogen pressure by loosening the charge hose connector at the nitrogen cylinder. When the system pressure is reduced to normal, disconnect the hose from the cylinder.
Gas leak check 1. Apply a soap water or a liquid neutral detergent
CAUTION To avoid nitrogen entering the refrigerant system in a liquid state, the top of the cylinder must be higher than its bottom then you pressurise the system. Usually, the cylinder is used in a vertical standing position.
CAUTION Be sure to use a manifold set for air purging. If it is not available, use a stop valve for this purpose. The "Hi" knob of the manifold valve must always be kept closed.
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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: A: Lo stop valve B: Hi stop valve C and D: connections to the indoor unit.
2.7.2.3 Evacuation ● Connect the charge hose end described in the preceding steps to the vacuum pump to evacuate the tubing and indoor unit. Confirm the "LO" knob of the manifold set is open. Then run the vacuum pump. The operation time for evacuation varies with tubing length and capacity of the pump. The following table is a guide for evacuation times. Times are dependent on tubing length and pump capacity.
Pipe Length (L) Air Purge Method
Timer required(min)
<5m Use Vacuum
Pump 25
5~10m Use Vacuum
Pump 30
● When the desired vacuum is reached, close the "LO" knob of the manifold set and stop the vacuum pump.
Indoor unit
Outdoor unit
M anifold set
Pressuregauge
Vacuum pump
Open Close
2.7.2.4 Finishing the job ● With a service valve wrench, turn the valve stem of liquid side valve counter-clockwise to fully open the valve. ● Turn the valve stem of gas side valve counter-clockwise to fully open the valve. ● Loosen the charge hose connected to the gas side service port slightly to release the pressure, then remove the hose. ● Replace the valve cap on the gas side service port and fasten the cap securely. ● This process is very important to prevent leakage from the system. ● Replace the valve caps at both gas and liquid side service valves and fasten them tightly. ● This completes air purging with a vacuum pump. The air conditioner is now ready to test run.
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2.8 TEST RUNNING 1. Check that all tubing and wiring have been properly connected. 2. Check that the gas and liquid side service valves are fully open. 2.8.1 Settlement of outdoor unit ● Anchor the outdoor unit with a bolt and nut (φ10mm) tightly and horizontally on a concrete or rigid mount. ● When installing on a wall, roof or rooftop, anchor the mounting base securely. ● In the case when the vibration of the unit is conveyed to the connecting pipes, secure the unit with an anti-vibration mount.
2.8.2 Prepare remote control Notes: ● There are two methods to test the unit using either the remote control or using the switch on the indoor unit. ● It is recommended that you test the unit using the switch on the indoor unit. To use the remote control for test running, operate as per the following instruction. To use the switch on the indoor unit for test running, skip the following instructions and move to item “2.8.3”. Prepare remote control The remote control uses two alkaline dry cell batteries (2 X AAA 1.5Volt). (1) Slide the cover of the battery compartment (on the rear of the remote control) off. (2) Insert new batteries, making sure that the (+) and (-) of battery are installed correctly. (3) Slide the battery compartment cover back on. NOTES: ● Always use 2 x AAA (1.5Volt) batteries. Do not use rechargeable batteries. ● Remove the batteries from the remote control
if the system is not going to be used for a long period. 2.8.3 Operating the unit with the switch on the indoor unit 1. Open and lift the front panel up to angle until it remains fixed with a clicking sound. 2. Press the AUTO/COOL button twice (For Size A and Size B indoor units) or COOL button once (For Size C indoor units) or Manual button twice (For Size D and Size E indoor units), the unit will work on test mode for cooling (Refer to page 3).
Note: Cooling test mode running can only continue for 30 minutes. After this time it will automatically change into AUTO mode with setting temperature at 24oC. If using the Remote Control for test running, set it in COOL mode (Refer to User Manual). The unit will not change into AUTO mode automatically. If the ambient temperature is too low, the unit cannot perform test running on COOL mode. 2.8.4 Evaluation of performance Operate unit for 15~20 minutes, then check the system refrigerant charge: 1. Measure the pressure of the gas side service valve. 2. Measure the temperature of the intake and discharge of air.
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3. Ensure the difference between the intake temperature and the discharge is more than 8oC. 4. For reference: the gas side pressure of optimum condition is as detailed (Cooling).
Outside ambient TEMP.
The pressure of the gas side service valve
35oC(95oF) 4~5kg/cm2
(400~490KPa) NOTE: If the actual pressure is higher than shown, the system is most likely overcharged, and charge should be reduced. If the actual pressure is lower than shown, the system is most likely undercharged, and charge should be added. The air conditioner is now ready for use.
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. Pump Down Procedure 1. Connect a low-pressure gauge manifold hose to the charge port on the gas side service valve. 2. Open the gas side service valve halfway and purge the air from the manifold hose using the refrigerant gas. 3. Close the liquid side service valve (all the way in). 4. Turn on the unit's operating switch and start the cooling operation. 5. When the low-pressure gauge reading becomes 1 to 0.5kg/cm2 (100~50kPa), fully close the gas side valve stem and then quickly turn off the unit. At this time Pump Down has been completed and all refrigerant gas will have been collected in the outdoor unit.
19
3 TROUBLESHOOTING GUIDE 3.1 REFRIGERATION CYCLE DIAGRAM For Reverse Cycle Type
For Cooling Only Type
20
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 MINIMUM MAXIMUM FOR SINGLE-PHASE POWER MODELS
220~240V 196V 253V
FOR THREE-PHASE POWER MODELS
Phase voltage 380~420V Single phase 220~240V
338V 196V
445V 253V
ROOM AIRCONDITIONER TEMPERATURE OPERATION LIMITS: Cooling operation Outdoor unit air temp.℃ DB 45 40 35 30 25 20 Indoor air temp. ℃ DB 10 15 20 25 30 35 40 Note: The chart is the result from the continuous operation under constant air temperature conditions.
However, excludes the initial pull-down stage. Heating operation Indoor air temp. ℃ DB 30 25 20 15 10 Outdoor unit air temp.℃ DB -5 5 15 25 Note : The chart is the result from the continuous operation under constant air temperature conditions.
However, excludes the initial pull-down stage.
DRY COOLING
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The following tables will help to find where error happened (LED on indoor unit): For models adopting electrical function (part I) (cooling only models):
Failure phenomenon Operation
lamp Timer lamp
Indoor fan speed has been out of control for over 1 minute
☆ X
Indoor room temp. or evaporator sensor is open circuit or short circuit
☆ On
Over current protection of the compressor occurs 4 times
X ☆
EEPROM error On ☆ No over-zero signal ☆ ☆
For models adopting electrical function (part I) (reverse cycle models):
Failure phenomenon Operation
lamp Timer lamp
Defrosting lamp
Over current protection of the compressor occurs 4 times
☆ X ☆
Indoor fan speed has been out of control for over 1 minute
X ☆ ☆
No over-zero signal ☆ ☆ ☆ Temp. sensor on indoor evaporator is open circuit or short circuit
X X ☆
Indoor room temp. sensor is open circuit or short circuit
X ☆ X
EEPROM error On ☆ X For models adopting electrical function (part II):
Failure phenomenon Operation
lamp Timer lamp
Defrosting lamp
Auto lamp
Over current protection of the compressor occurs 4 times
☆ ☆ ☆ ☆
Indoor room temp. sensor is open circuit or short circuit
X ☆ X X
Temp. sensor on indoor evaporator is open circuit or short circuit
☆ X X X
Temp. sensor on outdoor condenser is open circuit or short circuit (without for cooling only models)
X X ☆ X
Outdoor unit protects(outdoor temp sensor, phase order etc)
X X ☆ ☆
EEPROM error ☆ ☆ X X Indoor unit communication err X X X ☆
r Extinguish ☆ Flash at 5Hz
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Current protectio n(LED indicates)
Check the indoorair fi lt er.
Does outdo o r heat -exchanger fr osted?
No
It is norma l undertha t ambient temp .
Che ck the dra inage sys tem of out door unit.
YesDoes ind oor heat -exchan g er frosted?
YesCheck sp eedof in door motor.
Yes
No
Doe s the outdoo rtemp over 48 C?o
Check the outdoorcondenser.
D oes it occur in C ool mode?
Che ck speed of o utdoo rmo tor.
Yes
Check the over-curre n t protector of compressor.
No
Re place thema in PCB board .
Re place theco mpressor.
Recycle the refrigerantand recharge .
No
Doe s the ind oortemp low than 10 C?o
Yes
No
Check the solenoidcoil o f reve rse valve.
C heck the ove r-c urre nt protector of c ompressor.
Replace th emain PCB board.
Recycle the ref rig e-rant and rech arge.
R eplace the re versev alve.
Che ck the positio nand wiring of tem psen sor (all of the m).
If wro ng, the unit w illresult in current prote ction, not tem p.
C heck the softs tarter mou ld.
Check th e softstarter m ou ld.
T he unit does not o perate
Does the power LED light af ter turning the switch on?
C heck the elect ricalso urce.
No
Check the po wersupplie r.
Does the voltag e betwee n inpu t terminates o f transformer i s corre ct?
Does the voltag e betwee n outp ut terminates o f transformer i s corre ct?
D oes the powertr ansfer to the di sp lay boa rd ?
Rep lace the ma inPCB b oard.
Yes
Yes
No
Check wirin g.
Replace thetransfo rmer.
No
No
Do th e LED lamps indicates ERR?
Ye sPer form the related inst ruct io ns.
Yes
No
Is th ere beep fromthe unit when usingremoter?
Ch eck the soft sta rter
Ch eck the bat ter y of the remoter.
N o
Check the display board .Replace the
disp lay boa rd .Yes
No
Replace thedisp lay boa rd .
Yes
Yes
Does the unit run inForced Cool m ode?
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Abnormal n oisefrom the indoor unit
Does it happ e n in Fan On ly mod e?
Yes NoDoes it happ en withauto swing?
Check the swing mo to r.
Yes
Check the swing lou ver .
Check the fa n motor .
No
Check the cross flowfan .
Replace the b ear.
Does it just happ enin th e beginning of coolin g or heat in gmode?
It is b ecause of the h eatrub be tweenplastics parts.It is n orma l.
Yes
Check the inputand output pipe.
No
R ecycle the ref rig e-r ant and recha rge.
Abnormal noisefro m the outdoo runi t
D oes it happ en in C ool mode?
YesDo the fan blade rubwith the shroud?
Check t he motor.
Yes
Check t he fan blad e.
C heck the fixing nutsof outdoo r unit.
No
Check the motor supporter.
Check the capillary.
C heck the compressor.
No
Recycle the ref rig e-ran t and recharg e.
PROBLEM CAUSE REMEDY
Power failure Check the power cord.
Wiring failure Check the wiring. Replace the terminates or wires if failure.
Transformer failure Check the input and the output on transformer. Replace if failure. Not operating
Indoor PCB failure Replace after checked failure.
Cross flow fan failure Replace the fan if cracked, out of balance, or partially missing.
Loose screws Tighten them.
Worn bearings Replace after checked failure. Indoor abnormal
noise.
Motor failure Replace the motor if knocking sounds continue when running or loose,
or the motor hums or noise appears to be internal while running.
Fan blade failure Replace the fan blade if cracked, out of balance, or partially missing.
Loose screws Tighten them.
Motor failure Replace the motor if knocking sounds continue when running or loose,
or the motor hums or noise appears to be internal while running.
Compressor failure Replace the compressor if sounds coming from inner of the compressor.
Outdoor
abnormal noise.
Copper tubing Remove the cabinet and carefully rearrange tubing not to contact
cabinet, compressor.
Display board or
indoor PCB failure Replace the display board. If it is still false, replace the PCB.
Battery failure Check the voltage of battery. Replace batteries if the voltage is lower
than 2.3V.
Remote control
failure.
Remote control failure Normally, the remote control is not easy to damage. If the above two
methods are not effectual, replace the remote control.
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PROBLEM CAUSE REMEDY
Outdoor transformer
failure Replace if failure.
Indoor PCB failure Replace the PCB if the photon coupling on indoor PCB is failure.
Insufficient
cooling or
heating. Indoor PCB failure Replace after checked failure.
Lack of refrigerant Check leakage. Recycle the refrigerant. Correct and recharge if there is
any leakage in the refrigerant system.
Soft starter module
failure
Check the module and the capacitor connected to the module. Replace
if failure.
Overcurrent protector
failure
Check the resistance of compressor overcurrent protector. Replace if
failure.
Compressor
protection
Outdoor PCB failure Replace after checked failure.
Temperature sensor
failure Replace after checked failure.
Connector failure or
loose Repair or replace the sensor.
Open or short
circuit of outdoor
temperature
sensor Outdoor PCB failure Replace after checked failure.
Temperature sensor
failure Replace after checked failure.
Connector failure or
loose Repair or replace the sensor.
Room temp or
evap temp
sensor open or
short circuit Indoor PCB failure Replace after checked failure.
Soft starter module
failure
Check the module and the capacitor connected to the module. Replace
if failure. Over load or too
low voltage
protection Power failure Wait if checked the power voltage is really too low.
Wiring failure Correct if indoor fan motor wiring is loose.
Indoor fan motor
failure Check the input of fan motor. Replace if failure.
Fan speed
beyond control
Indoor PCB failure Replace after checked failure.
Zero-crossing
error Indoor PCB failure Replace after checked failure.
LED failure Replace the display if checked failure. No display on
indoor unit. Remote control shut
the display Push the button to turn the display on.
No power Check the voltage. Call an electrician if not within the limit.
Wiring Check the terminals. Repair and correct if loose.
Temperature setting Check and adjust the temperature setting.
Mode setting Check and adjust the mode setting.
Soft starter module
failure
Check the module and the capacitor connected to the module. Replace
if failure.
Reverse valve
solenoid coil
Check the reverse valve solenoid coil. Replace the coil if short, open or
damaged.
No cooling or
heating.
Reverse valve If the reverse valve is blocked, the heating mode will not perform.
Replace the reverse valve after checking the reason.
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PROBLEM CAUSE REMEDY
Air filter Clean or replace if restricted.
Unit undersized Determine if the unit is properly sized for the area to be cooled or
heated.
Condenser and
Evaporator Clean or replace if restricted.
Room structure Take proper measures to make the door and windows sealed well if gap
is found.
Air flow Clean or remove if any barrier is found to block the inlet/outlet wind flow
of the unit.
Sunlight Add a awning if the outdoor unit is exposed to the sunlight.
Outdoor fan motor
Check the fan capacitor on outdoor power control board and replace the
board if not within +/-10% of manufacturer's rating. Replace the motor if
the speed is not within +/-10% of manufacturer's rating but not because
of the capacitor.
indoor fan motor
For electrical function 2.3 models. Check the fan capacitor in indoor
electric box (for some models, the capacitor is on main PCB.) and
replace the capacitor (or main PCB) if not within +/-10% of
manufacturer's rating.
Replace the motor if the speed is not within +/-10% of manufacturer's
rating but not because of the capacitor.
Less refrigerant Check the tubes for reasons of leakage. Recycle the refrigerant, correct
the leakage points and recharge.
Capillary tube Regulate the flow if capillary tube is blocked. Make the evaporating
temperature appropriate if the evaporator is frosted.
Compressor
The inlet and outlet valve of the compressor is damaged, making the low
pressure connected with the high pressure. The refrigerating system is
difficult to produce high pressure and low pressure. Replace the
compressor after checking for the reason.
Insufficient
cooling or
heating.
Heat sources Reduce if over loaded.
Water drainage failure Check the drainage pipe and repair if failure.
The indoor unit is
incorrect installed Correct the installation if not correct.
Drainage pipe
blocked Correct it.
Water drops from
indoor unit
The humidity in room
is too high It's normal if the humidity in the room is over 85%.
Wiring failure Check wiring. Correct if wrong wiring or loosen.
Wire EMC Check wiring. Correct if the commucication wire is not shielded wire or
twisted with other wires.
Zero-crossing
error
Outdoor PCB failure Replace if the LED is not on.
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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)
1 2 3 4 5
1 2 3 4 52 12 1
2 12 1
3 513 51
3 2 13 2 1
31
1 31 3
DISPL
AY BOA
RD
CN6 CN4 CN12 CN2 CN3
CN11 RED
BLUE
BLACK
CN1
TRANSFORMER
C N5
POWER SUPPLY INDOOR MOTOR
STEP MOT OR
ROOM T
EMPERAT
URE
SEN
SOR
PIPE
TEMP
ERAT
URE
SENS
ORJX 1
INDOOR UNIT
TO OUTDOOR UNI T
Y/G
1 2(N) 3 4
BROWN
Y/G
COMPRESSOR RELAYC N1 5
8 7 6 5 4 3 21
4.1.2 For models: EL-KFR20GW/N2Y-A(B) EL-KFR26GW/N2Y-A(B) EL-KFR36GW/N2Y-A(B) EL-KFR20GW/Y-A(B) EL-KFR26GW/Y-A(B) EL-KFR32GW/Y-A(B) EL-KFR36GW/Y-A(B) EL-KFR20GW/N1Y-A(B) EL-KFR26GW/N1Y-A(B) EL-KFR36GW/N1Y-A(B) EL1-KFR20GW/Y-A(B) EL1-KFR26GW/Y-A(B) EL1-KFR32GW/Y-A(B) EL1-KFR20GW/N2Y-A(B)EL1-KFR26GW/N2Y-A(B) EL1-KFR35GW/N2Y-A(B) SEL1-KFR26GW/Y-A(B) SEL1-KFR36GW/Y-A(B)
1 2 3 4 5
1 2 3 4 52 12 1
2 12 1
3 513 51
3 2 1
3 2 1
31
1 31 3
DISPL
AY B
OARD
CN6 CN4 CN12 CN2 CN3
CN11RED
BLUE
BLACK
C N1 3_
CN1
TRANSFORMER
CN 5
POWER SUPP LY INDOOR MOTOR
STEP MOTOR
ROOM TEMP
ERAT
URE
SENS
OR
PIPE TEMPER
ATUR
E SENSOR
JX1
INDOOR UNITTO OUTDOOR UNI T
Y/G
1 2(N) 3 4
2 1
BROWN
YELLOW
BLUE
Y/G
COMPRESSOR RELAY
C N1 5
8 7 6 5 4 3 21
C N1 3_
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
27
4.1.3 For models: EL-KF36GW/N2Y-A(B) EL-KF36GW/Y-A(B) SEL1-KF36GW/Y-A EL1-KF35GW/N2Y-A(B)
1 2 3 45
1 2 3 4 5
2 1
2 1
2 1
2 1
3 51
3 51
3 2 13 2 1
31
1 31 3
DISPLA
Y BOAR
D
CN6 CN4 CN12 CN2 CN3
CN11 RED
BLUE
BLACK
CN1
TRANSFORMER
C N5
POWER SUPPLY INDOOR MOTOR
ST EP MOTOR
ROOM
TEMPE
RATU
RE
SENS
OR
PIPE
TEM
PERA
TURE
SEN
SOR
JX1
INDOOR UNITTO OUTDOOR UNIT
Y/G
1 2(N) 3 4
BROWN
Y/G
COMPRESSOR RELAYC N1 5
8 7 6 5 4 3 21
4.1.4 For models: EL-KF50GW/N2Y-A(B) EL-KF50GW/Y-A(B) EL-KT3F53GW/Y-T1 EL-KT3F53GW/Y-T2
2 12 1
2 12 1
3 513 51
3 2 1
3 2 1
31
1 31 3
DISP
LAY
BOARD
CN 6 CN4CN12 CN2 CN 3
CN11 RED
BLUE
BLACK
CN1
TR AN SF OR MER
CN5
POWER SUPP LY
IN DOOR MOTOR
ROOM
TEM
PERA
TURE
SENSOR
PIPE
TEMP
ERATUR
E
SENS
OR
JX1
INDOOR UNITTO OUTD OOR UNIT
Y/G
1 2(N) 3 4
BR OW N
Y/G
CO MPRESSOR RELAY
CN15
8 7 6 5 4 3 21
1 2 3 45
1 2 3 4 5
LOUV
ER M
OTOR 2
LOUVER MO
TOR 1
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
28
4.1.5 For models: EL-KFR50GW/N2Y-A(B) EL-KFR50GW/Y-A EL-KT3FR53GW/Y-T1
2 12 1
2 12 1
3 513 51
3 2 13 2 1
31
1 31 3
DISPLA
Y BOARD
CN6 CN4CN12 CN2 CN3
C N1 1R ED
BLUE
B LA CK
CN13_
CN1
T RANSFORMER
CN5
POWER SUPPLY
I ND OOR MOTOR
ROOM TEMPE
RATURE
SENS
OR
PIPE TEM
PERATURE
SEN
SOR
JX1
IND OOR UNITTO OUTDOOR UNIT
Y /G
1 2(N) 3 4
2 1
BROWN
YEL LO W
BLU E
Y/G
COMPRESSOR RELAY
CN15
8 7 6 5 4 3 21
CN13_
1 2 3 4 51 2 3 4 5
LOUV
ER M
OTOR
2
LOUVER
MOT
OR 1
4.1.6 For models: 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) AU-KF61GW/Y-A(B) AU-KFR61GW/Y-A(B) AU-KF70GW/Y-A(B) AU-KFR70GW/Y-A(B) SEL-KF61GW/Y-A(B) SEL-KFR61GW/Y-A(B) SEL-KF70GW/Y-A(B) SEL-KFR70GW/Y-A(B) EL-KT3F70GW/Y-T1 EL-KT3FR70GW/Y-T1 EL-KT3F70GW/Y-T2
CN2
CN5
CN11
CN1CN9
CN3
M~S WING SWING
UNIT2
CN7
CN8CN6
Y/GRED
Y/G
WHITE
BLUE
FUSE 3.15A/250V
FAN1
TRANS1
CAP1
XT1
RT2
RT1
TO OUTDOOR UNIT
UNIT1
1 2(N) S
WIRING DIAGRAM(INDOOR UNIT)
CODE
UNIT1
UNIT2
FAN1
CAP1
SWING
TRANS1
RT1
RT2
XT1
CN1-CN11
XP2,XS2
PART NAME
MAIN CONTROL PCB
DISPLAY PCB
INDOOR FAN
FAN CAPACITOR
SWING MOTOR
TRANSFORMER
ROOM TEMPERATURE SENSOR
PIPE TEMPERATURE SENSOR
5-WAY TERMINAL
PCB SOCKETS
CONNECTORS
XS2 XP2
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
29
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)
CN5
CN4
CN3
CN11
CN1CN9
M~SWI NG SWING
UNIT2
CN7
CN8CN6
Y/G
BROWN BROWN
Y/G
WHITE
BLUE
BLACK
FUSE 3.15A/250V
FAN1
TRANS1
XT1
RT2
RT1
XS2 XP2
TO OUTDOOR UNIT
UNIT1
1 2(N)S
WIRING DIAGRAM(INDOOR UNIT)
CODE
UNIT1
UNIT2
FAN1
SWING
TRANS1
RT1
RT2
XT1
CN1-CN11
XP2,XS2
PART NAME
MAIN CONTROL PCB
DISPLAY PCB
INDOOR FAN
SWING MOTOR
TRANSFORMER
ROOM TEMPERATURE SENSOR
PIPE TEMPERATURE SENSOR
5-WAY TERMINAL
PCB SOCKETS
CONNECTORS
P1
P2
P3
4.1.8 For models: SEL-KF20GW/Y-A SEL-KF26GW/Y-A SEL-KF32GW/Y-A
1 2 3 4 5
1 2 3 4 52 12 1
2 12 1
3 513 51
3 2 13 2 1
31
1 3
1 3
DISP
LAY BOARD
CN6 CN4 CN1 2 CN2 C N3
CN11
BLACK
CN1
T RANSFORMER
CN5
POWER SUPPL Y INDOOR MOTOR
STEP MOTOR
ROOM T
EMPE
RATURE
SENSOR
PIPE T
EMPE
RATURE
S
ENSO
R
JX 1
INDO OR UNI TTO O UTDOOR UNIT
Y/G
1 2(N) 3 4
WHI TE
GREEN
COMPRESSO R RELAYC N15
8 7
6 5 4 3 21
RED
BLACK
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
30
4.1.9 For models: SEL-KFR20GW/Y-A(B) SEL-KFR26GW/Y-A(B) SEL-KFR32GW/Y-A(B)
1 2 3 4 51 2 3 4 5
2 12 1
2 12 1
3 513 51
3 2 13 2 1
31
1 3
1 3
DISPLA
Y BOARD
CN6 CN4 CN12 CN2 CN3
CN11
WHITE
C N13_
CN1
TRANSFORMER
CN5
POWE R SUPPLY INDOOR MOTORSTEP MOTOR
ROOM T
EMPERATURE
SENSOR
PIPE
TEMPERATURE
SENSOR
JX1
INDOOR UNITTO OUTDOOR UNI T
Y/ G
1 2( N) 3 4
2 1
YELLOW
BLUE
GREE N
COMPRESSOR RELAY
CN15
8 7 6 5 4 3 21
CN 13 _
BL ACK
REDBLACK
4.1.10 For models: SEL-KF53GW/Y-A(B)
2 12 1
2 12 1
3 513 51
3 2 1
3 2 1
31
1 31 3
DISPLA
Y BO
ARD
CN6 CN4CN12 CN2 CN 3
CN11 RED
WHITE
BLACK
CN1
TR ANSFORME R
CN5
POWER SUPPLY
INDOOR M OT OR
ROOM
TEMPE
RATU
RE
SENS
OR
PIPE
TEMPE
RATURE
SENSO
R
JX1
INDOOR UN ITTO OUTDOO R UNIT
Y/G
1 2(N ) 3 4
BLACK
GREEN
CO MPRESSOR R ELAY
CN15
8 7 6 5 4 3 21
1 2 3 45
1 2 3 4 5
LOUVER M
OTOR
2
LOUV
ER MOTO
R 1
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
31
4.1.11 For models: SEL-KFR53GW/Y-A(B)
2 12 1
2 12 1
3 51
3 513 2 13 2 1
31
1 31 3
DISPLA
Y BOAR
D
CN6 C N4CN12 C N2 C N3
CN11 RED
WHITE
BLACK
C N13_
CN1
TRANS FO RMER
CN5
POWER SUP PL Y
INDOOR MO TOR
ROOM
TEM
PERATU
RE
SENSOR
PIPE
TEM
PERATU
RE
SEN
SOR
JX1
INDOOR UNITTO OUTDOOR UNIT
Y/G
1 2(N) 3 4
2 1
BLACK
YELLOW
B LUE
GREEN
COMPRES SO R RELAY
C N15
8 7 6 5 4 3 21
CN13_
1 2 3 4 5
1 2 3 4 5
LOUVER
MOTOR
2
LOUV
ER MOT
OR 1
4.1.12 For models: SEL1-KF26GW/Y-A(B)
1 2 3 4 5
1 2 3 4 52 12 1
2 12 1
3 513 51
3 2 13 2 1
31
1 31 3
DISP
LAY BOA
RD
CN 6 CN4 CN12 CN2 CN3
CN11 RED
BLUE
BLAC K
CN1
TRANSFOR MER
C N5
POWER SUPPLY IN DOOR MOTOR
STEP MOT OR
ROOM T
EMPE
RATURE
SENS
OR
PIPE TEMP
ERAT
URE
SENS
OR
JX1
INDOOR U NIT
TO OUTDO OR UNIT
Y/G
1 2(N) 3 4
BROWN
Y/G
CO MP RESSOR R EL AYC N1 5
8 7 6 5 4 3 21
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
32
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) EL-KFR20GW/N1Y-A(B) EL-KFR26GW/N1Y-A(B) EL-KFR36GW/N1Y-A(B) EL-KFR20GW/Y-A(B) EL-KFR26GW/Y-A(B) EL-KFR32GW/Y-A(B) EL-KFR36GW/Y-A(B) EL1-KFR20GW/Y-A(B) EL1-KFR26GW/Y-A(B) EL1-KFR32GW/Y-A(B) EL1-KFR20GW/N2Y-A(B) EL1-KFR26GW/N2Y-A(B) EL1-KFR35GW/N2Y-A(B) SEL-KFR20GW/Y-A(B) SEL-KFR26GW/Y-A(B) SEL-KFR32GW/Y-A(B) SEL1-KFR26GW/Y-A(B) SEL1-KFR36GW/Y-A(B)
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
33
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
BLACK BLACK
BLACK
Y&G
COMPRESSOR
RED
C
S
R
WHITE
BLUE
COMPRESSORCAPACITOR
FANMOTOR
RED
BLUE
FAN CAPACITOR
Y/G
OVERLOAD RELAY
4.2.4 For models: EL-KFR50GW/N2Y-A(B) EL-KFR50GW/Y-A(B) EL-KT3FR53GW/Y-T1 SEL-KFR53GW/Y-A(B)
INDOOR UNIT
OUTDOOR UNIT
RED
BLACK
BLUE
BLACK
Y&G
COMPRESSOR
C
S
R
WHITE
BLUE
COMPRESSORCAPACITOR
FANMOTOR RED
BLUE
FAN CAPACITOR
BLACK
BLUE
4-WAY
Y/G
OVERLOAD RELAY
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
34
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
CODE
UNIT1
COMP
CAP1
FAN2
CAP2
XT1
XT2
KM1
CT
TRANS1
CN1-CN11
PART NAME
OUTDOOR CONTROL PCB
COMPRESSOR
COMPRESSOR CAPACITOR
OUTDOOR FAN
OUTDOOR FAN CAPACITOR
5-WAY TERMINAL
MIDDLE TERMINAL
AC CONTACTOR
CURRENT INDUCTOR
TRANSFORMER
PCB SOCKETS
XT1
XT2
CT
TRANS1
1 2(N) S L NY/G Y/ G
Y/GCOMP
CAP11 2
MFAN2KM1
BLUE
B LUE
BLACK
BLACK
BLACK
BLACK
B LACK
BLACK
WHITE
WHITE
RED
RED
RED
RE D RED
RED
CAP2 1 2
CN 1
CN 4
CN 3
UNIT1
CN5
CN 8
CN 6
FUSE 3.15A/250 V
RED
RE D
RED
RED
C S
R
WIRING DIAGRAM(OUTDOOR UNIT)
TO I NDO OR U NI T PO WER S UPPL Y
4.2.6 For models: EL-KFR61GW/N2Y-A(B) EL-KFR70GW/N2Y-A(B) EL-KFR61GW/Y-A(B) EL-KFR70GW/Y-A(B) SEL-KFR61GW/Y-A SEL-KFR70GW/Y-A EL-KT3FR70GW/Y-T1
CODE
UNIT1
COMP
CAP1
FAN2
CAP2
XT1
XT2
VALVE
XP1,XS1
RT3
KM1
CT
TRANS1
CN1-CN11
PART NAME
OUTDOOR CONTROL PCB
COMPRESSOR
COMPRESSOR CAPACITOR
OUTDOOR FAN
OUTDOOR FAN CAPACITOR
5-WAY TERMINAL
MIDDLE TERMINAL
REVERSING VALVE
CONNECTORS
PIPE TEMPERATURE SENSOR
AC CONTACTOR
CURRENT INDUCTOR
TRANSFORMER
PCB SOCKETS
XT1
XT2
CT
TRANS1
1 2(N) S L NY/G Y/G
Y/GCOMP
CAP11 2
MFAN2VALVE KM1
BLUE
BLUE BLUE
BLUE
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
B LAC K
WHITE
W HI TE
RED
RED
RED REDRED
CAP2 1 2
RT3 XP1 XS1
CN1
CN 4
CN 3
UNIT1
CN 2
CN5
CN9
CN8
CN6
CN 11
FUSE 3.15A/ 250V
R ED
RED
R ED
RE D
C S
R
WIRING DIAGRAM(OUTDOOR UNIT)
TO I NDO OR UNI T PO WER S UPPL Y
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
35
4.2.7 For models: EL-KF90GW/Y-A(B)
FAN2 BLACK
WHITE
KM2
CAP2 BROWN
RED
TRANS1
Y&G
XT1
1 2
TO INDOOR UNIT POWER SUPPLY
COMP
SC
R
M ~
WIRING DIAGRAM
(OUTDOOR UNIT)
CODE
UNIT1
FAN2
COMP
CAP1
CAP2
XT1
XT2,XT3
KM1
KM2
CT
TRANS1
PART NAME
OUTDOOR CONTROL PCB
OUTDOOR FAN
COMPRESSOR
COMPRESSOR RUN CAPACITOR
COMPRESSOR START CAPACITOR
OUTDOOR FAN CAPACITOR
8-WAY TERMINAL
MIDDLE TERMINAL
AC CONTACTOR
START RELAY
CURRENT INDUCTOR
TRANSFORMER
1 2(N) S N L
CT UNIT1
CN1
BLUE
CAP3
CAP3 RED
BLACK WHITE
BROWN
BLACK
XT3
XT2
KM1 RED RED
RED BLACK
RED
BLACK
RED
RED BLACK
WHITE
BLACK
RED Y&G Y&G
CN12
CN8
CN6 CN3
CN5 CN4
BLACK
BLACK
FUSE 3.15A 250V
1 2 1 2 CAP1
BLACK
WHITE
RED
RS RELEASE RESISTANCE
RS
4.2.8 For models: EL-KFR90GW/Y-A(B)
FAN2 BLACK
WHITE
KM2
CAP2
RS
BROWN
RED
TRANS1
Y&G
1 2
COMP
SC
R
M ~
WIRING DIAGRAM (OUTDOOR UNIT)
CT
UNIT1
CN1
BLUE
CODE
UNIT1
FAN2
COMP
CAP1
CAP2
XT1
XT2,XT3
KM1
KM2
CT
TRANS1
RS RELEASE RESISTANCE
PART NAME
OUTDOOR CONTROL PCB
OUTDOOR FAN
COMPRESSOR
COMPRESSOR RUN CAPACITOR
COMPRESSOR START CAPACITOR
OUTDOOR FAN CAPACITOR
8-WAY TERMINAL
MIDDLE TERMINAL
AC CONTACTOR
START RELAY
CURRENT INDUCTOR
TRANSFORMER
VALVE REVERSING VALVE
XP1,XS1 CONNECTOR
RT3 PIPE TEMPERATURE SENSOR
CAP3
CAP3
BLACK WHITE
BROWN
BLACK
XT3
XT2
KM1 RED RED
RED BLACK
RED
BLACK
RED
RED
BLACK
WHITE
BLACK
RED Y&G
XT1
TO INDOOR UNIT POWER SUPPLY
1 2(N) S N L
Y&G
CN12
CN8
CN6 CN3
CN5 CN4
BLACK
BLACK
FUSE 3.15A 250V
CN2
CN9
CN11
XP1XS1
BLUE
BLUE
VALVE
RED
1 2 1 2
RED
BLACK
CAP1
WHITE
RT3
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
36
4.2.9 For models: EL-KF90GW/SY-A(B)
FAN2
WHITE
RED
TRANS1
1 2COMP
U(T1) V(T2)
W(T3)
M ~
CT UNIT1
CN1
BL UE
WIRING DIAGRAM (OUTDOOR UNIT)
CODE
UNIT1
FAN2
COMP
XT1
XT2
XT3,XT4
KM1
CT
TRANS1
PAR T NAM E
OU TD OOR CO NTR OL P CB
OUTDOOR FAN
COMPRESSOR
OUTDOOR FAN CAPACITOR
4-WAY TE RMI NAL
3-WAY TE RMI NAL
MIDDLE TERMINAL
AC CONTACTOR
CURRENT INDUCTOR
TRANSFORMER
CAP3
CAP3
BLACK
XT4
KM1
BLACK
RED
TO INDOOR UNIT POWER SUPPLY
1 2( N) S
CN6 CN 3
CN14 FUSE 3.1 5A 250V
Y&G Y&G
CN8
BLUE
BLUE
W HI TE
RED RED
RED
BLACK BLACK
BLA CK
WHITE RED 1 2
6
4
5
3
B LU E
Y&G
WHITE
RED
XT3
XT2
RE D
NCBA
XT1
RED
4.2.10 For models: EL-KFR90GW/SY-A(B)
FAN2
WHITE
RED
TRANS1
1 2COMP
U(T1) V(T2)
W(T3)
M ~
CT UNIT1
BL UE
BLUE
BLUE
WIRING DIAGRAM (OUTDOOR UNIT)
CODE
UNIT1
FAN2
COMP
XT1
XT2
XT3,XT4
RT3 XP1,XS1
VALVE
KM1
CT
TRANS1
PAR T NAME
OUT DOOR C ONTROL PCB
OUTDOOR FAN
COMPRESSOR
OUT DOOR F AN CAPA CITOR
4-WAY TERMINAL
3-WAY TERMINAL
MID DLE TE RMINAL
REV ERSING VALVE
CON NECTOR PIPE TEMPERATURE SENSOR
AC CONTAC TOR
CUR RENT I NDUCTO R
TRANSFORMER
CAP3
CA P3
BLACK
BLA CK
XT 4
KM1
BLACK
RED
TO INDOOR UNIT POWER SUPPLY
1 2(N ) S
CN 6 C N3
CN14 FUSE 3.15A 250V
Y&G Y&G
C N8
C N9
CN11
C N1 CN2
BLUE
B LUE
WHITE
RED RED
RED
R ED
BLACK B LACK
BLAC K
WHITE RED 1 2
6
4
5
3
B LUE
Y&G
WHITE
R ED
XT3
XT2
NCBA
XT1
VALVE
RT3XP1XS 1
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
37
4.2.11 For models: AU-KF61GW/Y-A(B)
XT1
XT2
CT
TRANS1
1 2(N) S L NY/G Y/G
Y/GCOMP
MFAN2KM1
BLUE
RED
BLACK
BLAC K
BLA CK
B LA CK
BLACK
W HITE
W HITE
RED
RED
RED
RED RED
RED
CAP2 1 2
CN 1
CN 4
CN 3
UNIT1
CN5
CN 8
CN 6
FU SE 3.1 5A/250V
RED
R ED
RED
RED
C S
R
WIRING DIAGRAM(OUTDOOR UNIT)
TO I NDO OR UNI T PO WER S UPPL Y
RS
CAP1
CAP3 1
1
2
2S OF T S TA RTE R
GRAYGRAY
Y EL LOWY EL LOW
GR EE N
B LUECODE
UNIT1
COMP
CAP1
CAP2
CAP3
XT1
XT2
KM1
CT
TRANS1
CN1-CN11
RS
FAN2
PART NAME
OUTDOOR CONTROL PCB
COMPRESSOR
COMPRESSOR RUN CAPACITOR
OUTDOOR FAN
5-WAY TERMINAL
MIDDLE TERMINAL
AC CONTACTOR
CURRENT INDUCTOR
TRANSFORMER
PCB SOCKETS
RELEASE RESISTANCE
OUTDOOR FAN CAPACITOR
COMPRESSOR START CAPACITOR
4.2.12 For models: AU-KFR61GW/Y-A(B)
CODE
UNIT1
COMP
CAP1
CAP2
CAP3
XT1
XT2
VALVE
XP1,XS1
RT3
KM1
CT
TRANS1
CN1-CN11
RS
FAN2
PART NAME
OU TDOOR CONTROL PCB
CO MPRESSOR
CO MPRESSOR RUN CAPACITOR
OU TDOOR FAN
5- WAY TERMINAL
MI DDLE TERMINAL
RE VERSING VALVE
CO NNECTORS
PI PE TEMPERATURE SENSOR
AC CONTACTOR
CU RRENT INDUCTOR
TR ANSFORMER
PC B SOCKETS
RE LEASE RESISTANCE
OU TDOOR FAN CAPACITOR
CO MPRESSOR START CAPACITOR
XT1RS
XT2
CT
TRANS1
1 2(N) S L NY/ G Y/G
Y/GCOMP
CAP1
CAP3 1
1
2
2
MFAN2VALVE KM1
BLUE
BLUE BLU E
BLUE
GR EEN
BLACK
SOF T STA RTER
G RAYGRAY
Y ELLO WYELLOW
BLACK
BLACK
BLACK
BLA CK
W HITE
WHITE
R ED
RED
RED R EDRED
CAP2 1 2
RT3 XP1 XS1
CN 1
CN 4
CN 3
UNIT1
CN 2
CN5
CN 9
CN 8
CN 6
CN 11
FUSE 3.15A /250V
RED
RED
RED
RED
R ED
RED
C S
R
WIRING DIAGRAM(OUTDOOR UNIT)
TO INDO OR UNI T PO WER S UPP L Y
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
38
4.2.13 For models: AU-KF70GW/Y-A(B)
XT1
XT2
CT
TRANS1
1 2(N) S L NY/G Y/G
Y/GCOMP
MFAN2KM1
BLUE
RED
BLACK
BL ACK
BLACK
BLACK
BLACK
WH ITE
WHITE
RED
RED
RED
RED REDRED
CAP2 1 2
CN 1
CN 4
CN 3
UNIT1
CN5
CN 8
CN 6
FU SE 3. 15 A/250 V
RED
RED
RED
RED
C S
R
WIRING DIAGRAM(OUTDOOR UNIT)
TO I NDO OR UNI T PO WER S UPPL Y
RS
CAP1
CAP3 1
1
2
2SOFT STARTER
GRAYGRAY
YELLOWYE LLOW
GREEN
B LUECO DE
UN IT 1
CO MP
CA P1
CA P2
CA P3 , 4
XT 1
XT 2
KM 1
CT
TR AN S1
CN 1- CN11
RS
CAP
FA N2
P ART NA ME
OUTD OOR CO NTROL PC B
COMP RESSOR
COMP RESSOR RUN CAP ACITOR
OUTD OOR FA N
5-WA Y TERM INAL
MIDD LE TER MINAL
AC C ONTACT OR
CURR ENT IN DUCTOR
TRAN SFORME R
PCB SOCKET S
RELE ASE RE SISTANCE
OUTD OOR FA N CAPACI TOR
COMP RESSOR START C APACIT OR
CAP4
WHIT EWHITE
1 2
4.2.14 For models: AU-KFR70GW/Y-A(B)
CODE
UNIT 1
COMP
CAP1
CAP2
CAP3 ,CAP4
XT1
XT2
VALV E
XP1, XS1
RT3
KM1
CT
TRAN S1
CN1- CN11
RS
FAN2
PART NAME
OUTDOOR CONTROL PCB
COMPRESS OR
COMPRESS OR RUN CAPAC ITOR
OUTDOOR FAN
5-WAY TE RMINAL
MIDDLE T ERMINAL
REVERSIN G VALVE
CONNECTO RS
PIPE TEM PERATURE SEN SOR
AC CONTA CTOR
CURRENT INDUCTOR
TRANSFOR MER
PCB SOCK ETS
RELEASE RESISTANCE
OUTDOOR FAN CAPACITO R
COMPRESS OR START CAP ACITOR
XT1
RS
XT2
CT
TRANS1
1 2(N) S L NY/ G Y/G
Y/GCOMP
CAP1
CAP3 1
1
2
2
MFAN2VALVE KM1
BLUE
BLUE BLUE
BLUE
GREEN
BLACK
SOFT STARTER
GRAYGRAY
YELLOWYELLOW
BLACK
BL ACK
BLACK
BL ACK
WH ITE
WHITE
RED
RED
RED RE D
RED
CAP2 1 2
RT3 XP1 XS1
CN 1
CN 4
CN 3
UNIT1
CN 2
CN5
CN 9
CN 8
CN 6
CN 11
FUSE 3.15A/250V
RED
RED
RED
RED
RED
RED
C S
R
WIRING DIAGRAM(OUTDOOR UNIT)
TO INDO O R UNIT PO WE R S UPPL Y
CAP4
W HITE WHITE
1 2
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
39
4.2.15 For models: AU-KF85GW/Y-A(B)
4.2.15 For models: AU-KFR85GW/Y-A(B)
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
40
5 EXPLODED VIEWS (See attached files.) 6 REPLACEMENT PARTS LIST (See attached files.) 7 SPECIFICATIONS (See attached files.)
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
41
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) MSE-21HRN2
EL-KF70GW/N2Y-A(B) MSE-24CRN2 EL-KFR70GW/N2Y-A(B) MSE-24HRN2
EL-KFR20GW/N1Y-A(B) MSE1-07HRN1 EL-KFR26GW/N1Y-A(B) MSE1-09HRN1
EL-KFR36GW/N1Y-A(B) MSE1-12HRN1
EL-KF20GW/Y-A(B) MSE-07CR EL-KFR20GW/Y-A(B) MSE-07HR
EL-KF26GW/Y-A(B) MSE-09CR EL-KFR26GW/Y-A(B) MSE-09HR
EL-KF32GW/Y-A(B) MSE-12CR-1 EL-KFR32GW/Y-A(B) MSE-12HR-1
EL-KF36GW/Y-A(B) MSE-12CR-2 EL-KFR36GW/Y-A(B) MSE-12HR-2
EL-KF50GW/Y-A(B) MSE-18CR EL-KFR50GW/Y-A(B) MSE-18HR
EL-KF61GW/Y-A(B) MSE-21CR EL-KFR61GW/Y-A(B) MSE-21HR
EL-KF70GW/Y-A(B) MSE-24CR EL-KFR70GW/Y-A(B) MSE-24HR
EL-KF90GW/Y-A(B) MSE-30CR EL-KFR90GW/Y-A(B) MSE-30HR
EL-KF90GW/SY-A(B) MSE-30CRS EL-KFR90GW/SY-A(B) MSE-30HRS
AU-KF61GW/Y-A(B) MSE-21CR-AU AU-KFR61GW/Y-A(B) MSE-21HR-AU
AU-KF70GW/Y-A(B) MSE-24CR-AU AU-KFR70GW/Y-A(B) MSE-24HR-AU
AU-KF85GW/Y-A(B) MSE-30CR-AU AU-KFR85GW/Y-A(B) MSE-30HR-AU
EL1-KF20GW/Y-A(B) MSE1-07CR EL1-KFR20GW/Y-A(B) MSE1-07HR
EL1-KF26GW/Y-A(B) MSE1-09CR EL1-KFR26GW/Y-A(B) MSE1-09HR
EL1-KF32GW/Y-A(B) MSE1-12CR EL1-KFR32GW/Y-A(B) MSE1-12HR
EL1-KF20GW/N2Y-A(B) MSE1-07CRN2 EL1-KFR20GW/N2Y-A(B) MSE1-07HRN2
EL1-KF26GW/N2Y-A(B) MSE1-09CRN2 EL1-KFR26GW/N2Y-A(B) MSE1-09HRN2
EL1-KF35GW/N2Y-A(B) MSE1-12CRN2 EL1-KFR35GW/N2Y-A(B) MSE1-12HRN2
EL-KT3F53GW/Y-T2 MSE1-18CR-T2 EL-KT3F70GW/Y-T2 MSE1-24CR-T2
EL-KT3F53GW/Y-T1 MSE1-18CR-T1 EL-KT3FR53GW/Y-T1 MSE1-18HR-T1
EL-KT3F70GW/Y-T1 MSE1-24CR-T1 EL-KT3FR70GW/Y-T1 MSE1-24HR-T1
SEL-KF20GW/Y-A(B) MSE1-07CR-S SEL-KFR20GW/Y-A(B) MSE1-07HR-S
SEL-KF26GW/Y-A(B) MSE1-09CR-S SEL-KFR26GW/Y-A(B) MSE1-09HR-S
SEL-KF32GW/Y-A(B) MSE1-12CR-S SEL-KFR32GW/Y-A(B) MSE1-12HR-S
SEL-KF53GW/Y-A(B) MSE1-18CR-S SEL-KFR53GW/Y-A(B) MSE1-18HR-S
SEL-KF61GW/Y-A(B) MSE1-21CR-S SEL-KFR61GW/Y-A(B) MSE1-21HR-S
SEL-KF70GW/Y-A(B) MSE1-24CR-S SEL-KFR70GW/Y-A(B) MSE1-24HR-S
SEL1-KF26GW/Y-A(B) MSE1-09CR-S1 SEL1-KFR26GW/Y-A(B) MSE1-09HR-S1
SEL1-KF36GW/Y-A(B) MSE1-12CR-S1 SEL1-KFR36GW/Y-A(B) MSE1-12HR-S1