Midea EL-KF36GW/N2Y-A(B), EL-KFR20GW/N2Y-A(B), EL-KFR36GW/N2Y-A(B), EL-KF50GW/N2Y-A(B), EL-KFR50GW/N2Y-A(B) Service Manual
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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:
T
I
M
E
R
P
O
W
E
R
A
U
T
O
℃
D
E
F
R
O
S
T
For cooling only models:
T
I
M
E
R
P
O
W
E
R
A
U
T
O
℃
AUTO
COOL
DRY
FAN
HIGH
MED
LOW
TEMP
MODE ON/OFF
FAN
SWING ECONOM Y
TIME R
RESET
LOCK
R
CANCEL
DIGITAL DISPLAY
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
45
250
Right refrigerant
pipe hole D65
Inst all ation plate
Indoor unit outline
Left refrigerant
pipe ho le D65
150mm or more to ceiling
120mm or more
to wall
120mm or m ore
to wal l
For Size B indoor unit:
Indoor unit outline
120mm or more
to wal l
120mm or more
to wal l
Left refrigerant
pipe hole D65
Right refriger ant
pipe hole D 65
Installation plate
280
815
150mm or more to ceiling
50
50
For Size C indoor unit:
50
1000
49
90
55
50
Rig h t pi pe
hole D 65
120mm or more
to the wa ll
Indoor unit outl ine
Installation plate
150mm or more to the c e i l i n g
Left pipe
hole D65
120mm or more
to the wall
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
4
For Size D indoor unit:
150 or more to the ceiling
Hooked Part
Indoor Unit Outline
Hooked Part
Left Pipe
hol e D95
120mm or more to
the wall
432
58
465
465
115
50
Rig h t pi pe
hole D95
5850
115
Hooked Part
432
1080
120mm o r more to
the wall
108
22
For Size E indoor unit:
150mm or mo re to the ceiling
1250
815
257
178
Ho oke d Par t
Hooker Part
120mm or more
to the wa ll
120mm or more
to the wa ll
325
55
55
55
58
Left pipe
hole D95
R
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h
t
p
i
p
e
h
o
l
e
D
9
5
I
n
d
o
o
r
u
n
i
t
o
u
t
l
i
n
e
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
purchased
separately
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 pipe
7,000Btu/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).
M
o
r
e
t
h
a
n
1
.
7
m
L
e
s
s
t
h
a
n
2
.
3
m
Mo
r
e
t
h
a
n
1
5
c
m
More than 12cm
More 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.
Mo
r
e
t
h
a
n
2
0
c
m
Mo
r
e
t
h
a
n
6
0
c
m
Mo
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t
h
a
n
1
0
c
m
M
o
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e
t
h
an
1
0
0
c
m
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”
16.0mm
Piping
LIQUID
1/4”
6.35mm
1/4”
6.35mm
3/8”
9.53mm
Standa rd 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 need
φ95mm 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 an d 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 thi s 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
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
10
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.
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
11
● 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.
Piping for passage
th r ough piping hole
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
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
12
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
(mm
2
)
<=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.
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
13
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 powe r 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.
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
14
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.
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
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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
Indoor unit
Outdoor unit
Ma nifold set
Pressure
gauge
Charge hose
Nitrogen g as
cyli nder (in vertical
standing 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.
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
16
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
Manifold set
Pressure
gauge
Vacu um pu mp
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.
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
17
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 24
o
C.
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.
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
18
3. Ensure the difference between the intake
temperature and the discharge is more than 8
o
C.
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/cm
2
(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/cm
2
(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 Con ditioning caused by a defect in the refrigeration circuit
and improper application, and the other is called the Structure Damage.
ROOM AIRCONDITIONER VOLT AGE 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 const ant air temperature conditions.
However, excludes the initial pull-down stage.
DRY COOLING
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
21
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(outd oor temp sensor,
phase order etc)
X X
☆ ☆
EEPROM error
☆ ☆
X X
Indoor unit communication err X X X
☆
r Extinguish ☆ Flash at 5Hz
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
22
Cu rrent pr ot ec ti on
(LED in dicates)
Check the indoor
air filter.
Does outdoor heat exchanger fros ted?
No
It is norma l under
that ambi ent temp .
Check the
dra i nage
system of
outdoor unit.
Yes
Does indoor heatexchanger frosted?
Yes
Check speed
of in door
motor.
Yes
No
Does the outdoor
temp over 48 C ?
o
Check the outdoor
condenser.
Does it occur in
Cool mode?
Check speed
of outdoor
motor.
Yes
Check the overcurre nt protect or of
compressor.
No
Replace the
main PCB board.
Replace the
compressor.
Recycle the
refrigerant
and rech ar ge.
No
Does the indoor
temp low than 10 C?
o
Yes
No
Check the solenoid
coil of reverse valve.
Check the overcurre nt protect or of
compressor.
Replace the
main PCB board.
Recyc le the refrigerant and rec harge.
Replace the reverse
valve.
Ch ec k the po s i tion
and wiri ng of temp
sensor (all of the m).
If wrong, t he unit will
result in current
protection, not temp.
Check the soft
starter mould.
Check the soft
start er mould.
The unit does not
operate
Does the power LED
light after turning
the switch on?
Check the electrical
source.
No
Check the power
supplie r.
Does the voltage
between input
terminates o f
transformer is
corre ct?
Does the voltage
between outp ut
terminates o f
transformer is
corre ct?
Does the power
tran sfer to the
disp lay board ?
Replace the main
PCB board.
Yes
Yes
No
Check wiring.
Replace the
transformer.
No
No
Do th e LED lam ps
indicat es ERR?
Ye s
Perform
the rela te d
inst ructions.
Yes
No
Is there beep from
the unit when using
remoter?
Check th e soft
starter
Check the battery
of the r emoter.
No
Che ck the displ ay
board .
Replace the
disp lay board .
Yes
No
Replace the
display board .
Yes
Ye s
Does the uni t run in
Forced Cool mode?
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
23
Abnormal n oise
from the indoor unit
Does it happen in
Fan Only mode?
Yes No
Does it happ en with
auto swing?
Check the
swing motor.
Yes
Check the
swing louver.
Check the fan
motor.
No
Check the cross flow
fan.
Replace the b ear.
Does i t just happen
in the beginning of
cooling or heating
mode?
It is because
of the heat
rub between
plas tics parts.
It is normal.
Yes
Check the input
and output pi pe .
No
Recyc le the ref rigerant and rec har ge.
Abnor mal noise
from the outdoo r
unit
Does it happen in
Cool mode?
Yes
Do the fan blade rub
with the shroud?
Chec k t he
motor.
Yes
Chec k t he
fan blade.
Chec k the fixing nut s
of outdoor unit.
No
Che ck the
motor
supporter.
Check the capillary.
Check the
compressor.
No
Recycle the refrig erant and recharge.
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 checke d 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 di splay 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.
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
24
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.
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
25
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 sunl ight.
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.
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
26
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)
12
34
5
12345
212121
21
351
351
321
321
31
13
1
3
DISPLAY BOARD
CN 6 CN 4 CN12 CN2
CN 3
CN 11
RE D
BL UE
BL AC K
CN 1
TR AN SFOR MER
CN5
P
O
W
E
R
S
U
P
P
L
Y
I
N
D
O
O
R
M
O
T
O
R
S
T
E
P
M
O
T
O
R
RO OM T EM P ER AT UR E
SENSOR
PIPE TEMPERATURE
SENSOR
JX1
INDOOR UNIT
TO OUTDOOR UNI T
Y/ G
1 2 (N) 3 4
BR OW N
Y/ G
C
O
M
P
R
E
S
S
O
R
R
E
L
A
Y
C
N
1
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)
12
34
5
1
2345
21
2
1
21
2
1
351
35
1
321
321
31
13
13
DIS PL A Y B OARD
CN 6
CN4CN12CN2
CN 3
CN 11
RE D
BL UE
BL AC K
CN13_
CN 1
TR AN SFOR ME R
CN 5
P
O
W
E
R
S
U
P
P
L
Y
I
N
D
O
O
R
M
O
T
O
R
S
T
E
P
M
O
T
O
R
ROO M TEMPERATURE
SENSOR
PIPE TEMPERATURE
SENSOR
JX 1
IN DO OR UNI T
TO O UT DOOR U NIT
Y/ G
1
2(N)
34
2
1
BR OW N
Y
E
L
L
O
W
B
L
U
E
Y/ G
C
O
M
P
R
E
S
S
O
R
R
E
L
A
Y
C
N
1
5
8 7 6 5 4 3 21
CN13_
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)
12
34
5
1
2345
21
2
1
21
2
1
351
35
1
32
1
321
31
13
13
DISPLAY BOARD
CN 6 CN 4
CN 12
CN 2
CN3
CN 11
RED
BL UE
BL AC K
CN1
TRANSFORMER
CN5
P
O
W
E
R
S
U
P
P
L
Y
I
N
D
O
O
R
M
O
T
O
R
S
T
E
P
M
O
T
O
R
ROOM TEMPERATURE
SENSOR
PIPE TEMPERATURE
SENSOR
JX 1
IN DO OR U NI T
TO O UT DO OR U NI T
Y/ G
12(N)3 4
BR OW N
Y/ G
C
O
M
P
R
E
S
S
O
R
R
E
L
A
Y
C
N
1
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
1
21
2
1
21
351
35
1
321
321
31
13
13
DISPLAY BOARD
CN 6
CN4
CN12
CN2 CN 3
CN11
RED
BLUE
BLACK
CN1
TR AN SF OR ME R
CN5
P
O
W
E
R
S
U
P
P
L
Y
I
N
D
O
O
R
M
O
T
O
R
ROOM TEMPERATURE
SENSOR
P IPE TEMPERA TURE
SENSOR
JX1
INDOO R UNIT
TO OUTD OOR UNIT
Y/G
1
2(N)
34
BR OW N
Y/G
C
O
M
P
R
E
S
S
O
R
R
E
L
A
Y
C
N
1
5
8 7 6 5 4 3 21
1
2
34
5
12 345
LOUVER MOTOR 2
LOUVE R MOTOR 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
212121
21
35
1
35
1
321
321
31
13
13
DISPLAY BOARD
CN6
CN4
CN12
CN2
CN3
CN11
RED
BLUE
BLACK
CN13_
CN1
T RAN SF OR ME R
CN5
P
O
W
E
R
S
U
P
P
L
Y
I
N
D
O
O
R
M
O
T
O
R
ROOM TEMPERATURE
SENSOR
PI PE TEMPERATURE
SENSOR
JX1
IND OOR UNIT
TO OUTDOOR UNIT
Y/G
1
2(N )
34
2
1
BROWN
Y
E
L
L
O
W
B
L
U
E
Y/G
C
O
M
P
R
E
S
S
O
R
R
E
L
A
Y
C
N
1
5
8 7 6 5 4 3 21
CN13_
12
34
5
12 345
LO UV ER M OTOR 2
LOU VE R M OTOR 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
CN1
CN9
CN3
M
~
SWING SWING
UNIT2
CN7
CN8
CN
6
Y/G
RED
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)
CO DE
UN IT 1
UN IT 2
FA N1
CA P1
SW IN G
TR AN S1
RT 1
RT 2
XT 1
CN 1- CN 11
XP 2, XS 2
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
CN1
CN9
M
~
SWI NG SWING
UNIT2
CN7
CN8
C
N
6
Y/G
BROWN
BROWN
Y/G
WHITE
BLUE
BLACK
FUSE 3.15A/250V
FAN1
TRANS 1
XT1
RT2
RT1
XS2
XP2
TO O UTDO OR U NIT
UNIT1
1
2(N)
S
WIRING DIAGRAM
(INDOOR UNIT)
CODE
UNIT1
UNIT2
FAN1
SWING
TRANS1
RT1
RT2
XT1
CN1-CN11
XP2,XS2
P ART N AM E
MA IN CONT RO L PCB
DI SP LAY P CB
IN DO OR FA N
SW IN G MOT OR
TR AN SFORM ER
RO OM TEMP ER ATURE S ENSOR
PI PE TEMP ER ATURE S ENSOR
5- WA Y TER MI NAL
PC B SOCKE TS
CO NN ECTOR S
P1
P2
P3
4.1.8 For models:
SEL-KF20GW/Y-A SEL-KF26GW/Y-A SEL-KF32GW/Y-A
12
34
5
12 345
212121
21
351
351
321
32
1
31
13
1
3
DISPLAY BOARD
CN6
CN4 CN1 2
CN2 CN3
CN11
BLACK
CN1
TRANSFORMER
CN5
P
O
W
E
R
S
U
P
P
L
Y
I
N
D
O
O
R
M
O
T
O
R
S
T
E
P
M
O
T
O
R
ROOM TEMPERATURE
SENSOR
P IPE TEM PE RATURE
SEN SO R
JX 1
INDO OR UNI T
TO O UT DOOR U NIT
Y/G
1
2(N)
34
WHI TE
GRE EN
C
O
M
P
R
E
S
S
O
R
R
E
L
A
Y
C
N
1
5
8 7 6 5 4 3 2 1
RED
B
L
A
C
K
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)
12
34
5
12345
2
1
21
2
1
21
35
1
351
32 1
32 1
31
13
13
DISPLAY BOARD
CN 6
CN4 CN12 CN2
CN3
CN11
WHI T E
C N13_
CN1
TRANSFOR ME R
CN5
P
O
W
E
R
S
U
P
P
L
Y
I
N
D
O
O
R
M
O
T
O
R
S
T
E
P
M
O
T
O
R
ROOM TEMPERATURE
SENSOR
P IP E T EM P ER AT U RE
S EN S OR
JX1
INDOO R U NIT
TO OUTDOOR UNI T
Y/ G
12(N)3 4
2
1
Y
E
L
L
O
W
B
L
U
E
GREE N
C
O
M
P
R
E
S
S
O
R
R
E
L
A
Y
CN15
8 7 6 5 4 3 21
CN 13 _
BL AC K
RED
BLACK
4.1.10 For models:
SEL-KF53GW/Y-A(B)
21
2
1
21
2
1
351
351
321
321
31
13
13
DISPLAY BOARD
CN 6
CN4
CN 1 2
CN2
CN 3
CN 1 1
RED
WHITE
BLAC K
CN 1
TR ANSFORME R
CN 5
P
O
W
E
R
S
U
P
P
L
Y
I
N
D
O
O
R
M
O
T
O
R
ROOM TEMPERATURE
SENSOR
PIPE TE MPERA TURE
SE NSOR
JX1
INDOOR UNIT
TO OUTDOOR UNIT
Y/G
1
2(N )
34
BLAC K
GREEN
C
O
M
P
R
E
S
S
O
R
R
E
L
A
Y
C
N
1
5
8 7 6 5 4 3 21
12
34
5
123
4
5
LO UVER MOTOR 2
LOUVER MOTOR 1
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
31
4.1.1 1 For models:
SEL-KFR53GW/Y-A(B)
212121
21
351
3
5
1
32
1
32
1
31
13
13
DISPLAY BOARD
CN6
CN4
CN12
CN2
CN3
CN11
RED
WHITE
BLACK
C N13_
CN1
TRA NS FO RM ER
CN5
P
O
W
E
R
S
U
P
P
L
Y
I
N
D
O
O
R
M
O
T
O
R
ROOM TEMPERATURE
SENSOR
PIP E TEM PERAT URE
SEN SOR
JX1
INDOOR UNIT
TO OUTDOOR UNIT
Y/G
1
2(N)
34
2
1
BLA CK
Y
E
L
L
O
W
B
L
U
E
GREEN
C
O
M
P
R
E
S
S
O
R
R
E
L
A
Y
C
N
1
5
8 7 6 5 4 3 21
CN13_
12
34
5
1
2345
LO UVER MOTOR 2
LOUVER MO TOR 1
4.1.12 For models:
SEL1-KF26GW/Y-A(B)
12
34
5
1
2345
2
1
2
1
2
1
2
1
35
1
35
1
321
321
31
13
13
DISPLAY BOARD
CN 6 CN4 CN12 CN2
CN 3
CN 11
RE D
BLUE
BL ACK
CN 1
TRANSFORMER
CN5
P
O
W
E
R
S
U
P
P
L
Y
I
N
D
O
O
R
M
O
T
O
R
S
T
E
P
M
O
T
O
R
ROOM TEMPERATURE
SENSOR
PIPE TEMPERATURE
SENSOR
JX 1
IN DO OR U NI T
TO O UT DO OR UNI T
Y/ G
12(N) 3 4
BR O WN
Y/ G
C
O
M
P
R
E
S
S
O
R
R
E
L
A
Y
C
N
1
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
COMPRESSOR
CAPACITOR
FAN
MOTOR
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
COMPRESSOR
CAPACITOR
FAN
MOTOR
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
UNIT 1
COMP
CAP1
FAN2
CAP2
XT1
XT2
KM1
CT
TRAN S1
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
TR A NS 1
1
2(N)
S
LN
Y/G
Y/ G
Y/G
COMP
CAP1
12
M
FAN2
KM1
BLUE
BLUE
BLACK
BLACK
BLACK
BLACK
BLACK
BL A C K
WHITE
WHITE
RED
RED
RED
RE D
RED
RE D
CAP2
12
CN 1
CN 4
CN 3
UNIT 1
CN 5
CN 8
CN 6
FUSE 3.15A/250 V
RED
RE D
RED
RED
CS
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
CO D E
UN I T1
CO M P
CA P 1
FA N 2
CA P 2
XT 1
XT 2
VA L VE
XP 1 ,XS 1
RT 3
KM 1
CT
TR A NS1
CN 1 -CN 1 1
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
LN
Y/G
Y/ G
Y/G
COM P
CAP1
12
M
FAN2
VALVE
KM1
BLUE
BLUE
BLUE
BLUE
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
WHITE
WHITE
RED
RED
RED
RED
RE D
CAP2
12
RT3 XP1
XS1
CN1
CN 4
CN 3
UNIT 1
CN 2
CN 5
CN9
CN8
CN6
CN 11
FUSE 3.15A/ 250V
RED
RED
RED
RE D
CS
R
WIRING DIAGRAM
(O UTDOOR UNI T)
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 UN IT
POWER SUPPL Y
CO MP
S
C
R
M
~
WIRING DIAGRAM
(OUTDOOR UNIT)
CODE
UNIT1
FAN2
COMP
CAP1
CAP2
XT1
XT2,XT3
KM1
KM2
CT
TRANS1
PART NAME
OUTDOOR C ONTROL P CB
OUTDOOR FAN
COMPRESSOR
COMPR ESSOR RUN CAPACITOR
COMPRESSOR START CAPA CITOR
OUTDOOR F AN CAPACITOR
8-WAY TERMINAL
MIDDLE TE RMINAL
A C CONTACTOR
START REL AY
CURRENT I NDUCTOR
TRANSFORMER
1
2(N)
S
N L
CT
UNIT1
CN1
BLUE
CAP3
CAP3
R ED
BLACK
WHITE
BROWN
BLACK
XT3
XT2
KM1
RED
RED
RED
BLACK
RED
BLACK
RED
RED
BLACK
W HI TE
BLACK
RE D
Y&G
Y&G
CN12
CN8
CN6
CN3
CN5
C N4
BLACK
BLACK
FUSE 3 .15A 25 0V
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
S
C
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 C ONTROL PCB
OUTDOOR F AN
COMPRESSOR
COMPRESSOR RUN CAPACITOR
COMPRESSOR START CAPACITOR
OUTDOOR F AN CAPACITOR
8-WAY TERMINAL
MIDDLE TE RMINAL
AC CONTAC TOR
START REL AY
CURRENT I NDUCTOR
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
BL AC K
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
C N4
BLACK
BLACK
FUSE 3.15 A 2 5 0 V
CN2
CN9
CN11
XP1
XS1
BLUE
BLUE
VALVE
R E D
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 2
COMP
U(T1)
V(T2)
W(T3)
M
~
CT
UNIT1
CN1
BLUE
WIRING DIA GRAM
(OUTDO OR U NIT)
CODE
UNIT1
FAN2
COMP
XT1
XT2
XT3,XT4
KM1
CT
TRANS1
PA R T NA M E
OU TDOOR CO NTR OL PCB
OUTDOOR FAN
COMPRESSOR
OUTDOOR FAN CAPACITOR
4-WAY TE RMINAL
3-WAY TE RMINAL
MIDDLE TERMINAL
AC CONTACTOR
CURRENT INDUCTOR
TRANSFORMER
CAP3
CAP3
BLACK
XT4
KM1
BLACK
RED
T O INDO OR UNIT POWER SUPPLY
1
2(N)
S
CN6
CN3
CN14
FUSE 3.1 5A 250V
Y&G Y&G
CN8
BLUE
BLUE
W HI TE
RED RED
RED
BLACK
BLACK
BLACK
WHITE
RED 1 2
6
4
5
3
B LU E
Y&G
WHITE
RED
XT3
XT2
R E D
N
C
B
A
XT1
RED
4.2.10 For models:
EL-KFR90GW/SY-A(B)
FAN2
WHITE
RED
TRANS1
1 2
COMP
U(T1 )
V( T2)
W(T 3)
M
~
CT
UNIT1
BL UE
BLUE
BLUE
WIRING DIAGRAM
(OUTDO OR 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 TERMINAL
REV ERSING VALVE
CON NECTOR
PIPE TEMPERATURE SENSOR
AC CONTACTOR
CUR RENT I NDUCTOR
TRANSFORMER
CAP3
C A P 3
BLACK
BLA CK
XT 4
KM1
BLACK
RED
TO INDO OR UNIT POWER SUPPLY
1
2(N)
S
CN 6
C N3
CN14
FU SE 3 .15A 250V
Y&G Y&G
C N8
C N9
CN11
C N1
CN2
BLUE
B LUE
WHITE
RED RED
R E D
R ED
BLACK
B LACK
BLAC K
WHITE
RED 1 2
6
4
5
3
B LUE
Y&G
WHITE
R ED
XT3
XT2
N
C
B
A
XT1
VALVE
RT3
XP1
XS 1
GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
37
4.2.1 1 For models:
AU-KF61GW/Y-A(B)
XT 1
XT 2
CT
TRANS1
1
2(N)
S
LN
Y/G
Y/G
Y/G
COMP
M
FAN2
KM1
BLUE
RED
BLACK
BLAC K
BL A CK
BLACK
BLACK
W HITE
W HITE
RED
RED
RED
RED
RED
RED
CAP2
1
2
CN 1
CN 4
CN 3
UNIT 1
CN 5
CN 8
CN 6
FU SE 3.1 5A/250V
RED
RED
RED
RED
CS
R
WIRING DIAGRAM
(OUTDOOR UNIT)
TO I NDO OR UNI T PO WER S UPPL Y
RS
CAP1
CAP3
112
2
SOFT
STARTER
GRAY
GRAY
YELLOW
YELLOW
GR EE N
BLUE
CO DE
UN IT 1
CO MP
CA P1
CA P2
CA P3
XT 1
XT 2
KM 1
CT
TR AN S1
CN 1- CN11
RS
FA N2
P AR T NA ME
OU TD OOR CO NT RO L PC B
CO MP RE SS OR
CO MP RESS OR R UN C AP ACIT OR
OU TD OO R FA N
5- WA Y TE RM IN AL
MI DD LE T ER MI NA L
AC C ON TA CT OR
CU RR EN T IN DU CT OR
TR AN SF OR ME R
PC B SO CK ET S
RE LE ASE RE SI ST AN CE
OU TD OOR FA N CA PA CI TOR
CO MP RESS OR S TA RT C APAC IT OR
4.2.12 For models:
AU-KFR61GW/Y-A(B)
CO DE
UN IT 1
CO MP
CA P1
CA P2
CA P3
XT 1
XT 2
VA LV E
XP 1, XS 1
RT 3
KM 1
CT
TR AN S1
CN 1- CN 11
RS
FA N2
P AR T NA ME
OU TD OO R CO NT R OL PC B
CO MP RE SS OR
CO MP RE SS OR R U N C AP ACIT OR
OU TD OO R FA N
5- WA Y TE RM IN A L
MI DD LE T ER MI N AL
RE VE RS IN G VA L VE
CO NN EC TO RS
PI PE T EM PE RA T UR E S ENSO R
AC C ON TA CT OR
CU RR EN T IN DU C TO R
TR AN SF OR ME R
PC B SO CK ET S
RE LE AS E RE SI S TA N CE
OU TD OO R FA N C AP A CI TOR
CO MP RE SS OR S T AR T C APAC IT OR
XT1
RS
XT2
CT
TR ANS 1
1
2(N)
S
LN
Y/ G
Y/G
Y/G
COMP
CA P1
CAP3
112
2
M
FAN2
VA L V E
KM1
BLUE
BLUE
BLU E
BLUE
GR EEN
BLACK
SOF T
STA RTER
GRAY
GRAY
YELLOW
YELLOW
BLACK
BLACK
BLACK
BL A C K
WHITE
WHITE
RED
RED
RED
RED
RED
CAP2
12
RT3
XP 1
XS1
CN 1
CN 4
CN 3
UNIT 1
CN 2
CN 5
CN 9
CN 8
CN 6
CN 11
FUSE 3.15A /250V
RED
RED
RED
RED
RED
RED
CS
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)
XT 1
XT2
CT
TRANS1
1
2(N)
S
LN
Y/G
Y/ G
Y/G
COMP
M
FAN2
KM1
BLUE
RED
BLACK
BL A C K
BLACK
BLACK
BLACK
WH ITE
WHITE
RED
RED
RED
RED
RED
RED
CAP2
1
2
CN 1
CN 4
CN 3
UNIT 1
CN 5
CN 8
CN 6
FU SE 3. 15 A/2 50 V
RED
RED
RED
RED
CS
R
WIRING DIAGRAM
(OUTDOOR UNIT)
TO I NDO OR UNI T PO WER S UPPL Y
RS
CAP1
CAP3
112
2
SOFT
STARTER
GRAY
GRAY
YELLOW
YE LLOW
GREEN
B LUE
CO DE
UN IT 1
CO MP
CA P1
CA P2
CA P3 , 4
XT 1
XT 2
KM 1
CT
T R AN S1
C N 1- CN 1 1
RS
CAP
FA N2
P AR T NA ME
OUTD OO R CO NT ROL PC B
COMP RE SSOR
COMP RE SSOR R UN C AP ACITOR
OUTD OO R FA N
5-WA Y TERM IN AL
MIDD LE TER MI NAL
AC C ON TACT OR
CURR EN T IN DU CTOR
TRAN SF ORME R
PCB SO CKET S
RELE AS E RE SI STAN CE
OUTD OO R FA N CAPA CI TOR
COMP RE SSOR S TART C APACIT OR
CAP4
WHIT E
WHITE
12
4.2.14 For models:
AU-KFR70GW/Y-A(B)
CO DE
UN IT 1
CO MP
CA P1
CA P2
CA P3 ,CAP 4
XT 1
XT 2
VA LV E
XP 1, XS1
RT 3
KM 1
CT
TR AN S1
CN 1- CN11
RS
FA N2
P AR T NAME
O UTD OO R CONTR OL PC B
C OMP RE SS OR
C OMP RE SS OR RU N C AP AC IT OR
O UTD OO R FAN
5 -WA Y TE RMINA L
M IDD LE T ERMIN AL
R EVE RS IN G VAL VE
C ONN EC TO RS
P IPE T EM PERAT URE S EN SO R
A C C ON TA CTOR
C URR EN T INDUC TOR
T RAN SF OR MER
P CB SO CK ETS
R ELE AS E RESIS TAN CE
O UTD OO R FAN C APA CI TO R
C OMP RE SS OR ST ART C AP AC ITO R
XT1
RS
XT 2
CT
TR A NS 1
1
2(N)
S
LN
Y/ G
Y/G
Y/G
COMP
CAP 1
CA P 3
1
122
M
FAN2
VALVE
KM1
BLUE
BLUE
BLUE
BLUE
GREEN
BLACK
SOFT
STARTER
GRAY
GRAY
YELLOW
YELLOW
BLACK
BL A C K
BLACK
BL ACK
WH ITE
WHITE
RED
RED
RED
RE D
RED
CAP2
1
2
RT3 XP1
XS1
CN 1
CN 4
CN 3
UNIT 1
CN 2
CN 5
CN 9
CN 8
CN 6
CN 11
FUSE 3.15A/250V
RED
RED
RED
RED
RED
RED
CS
R
WIR ING DIAGRA M
(O UTDO OR UNIT)
TO INDO O R UNIT PO WE R S UPPL Y
CAP4
W HITE
WHITE
12
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
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