00201000 En
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Service manual CAUTION - BEFORE SERVICING THE UNIT, READ THE SAFETY - PRECAUTIONS IN THIS MANUAL. - ONLY FOR AUTHORIZED SERVICE PERSONNEL. MODELS: EL-KF20GW/N2Y-A(B) EL-KF20 GW/N2Y-A(B)
EL-KFR20GW/N2 EL-KFR2 0GW/N2Y Y-A(B)
EL-KF26GW/N2Y-A(B) EL-KF26 GW/N2Y-A(B)
EL-KFR26GW/N2 EL-KFR2 6GW/N2Y Y-A(B)
EL-KF36GW/N2Y-A(B) EL-KF36 GW/N2Y-A(B)
EL-KFR36GW/N2 EL-KFR3 6GW/N2Y Y-A(B)
EL-KF50GW/N2Y-A(B) EL-KF50 GW/N2Y-A(B)
EL-KFR50GW/N2 EL-KFR5 0GW/N2Y Y-A(B)
EL-KF61GW/N2Y-A(B) EL-KF61 GW/N2Y-A(B)
EL-KFR61GW/N2 EL-KFR6 1GW/N2Y Y-A(B)
EL-KF70GW/N2Y-A(B) EL-KF70 GW/N2Y-A(B)
EL-KFR70GW/N2 EL-KFR7 0GW/N2Y Y-A(B)
EL-KFR20GW/N1 EL-KFR2 0GW/N1Y Y-A(B)
EL-KFR26GW/N1 EL-KFR2 6GW/N1Y Y-A(B)
EL-KFR36GW/N1Y-A(B) EL-KFR36 GW/N1Y-A(B)
EL-KF20GW/Y-A(B) EL-KF20 GW/Y-A(B)
EL-KFR20GW/Y-A(B) EL-KFR2 0GW/Y-A(B)
EL-KF26GW/Y-A(B) EL-KF26 GW/Y-A(B)
EL-KFR26 GW/Y-A(B)
EL-KF32GW/Y-A(B) EL-KF32 GW/Y-A(B)
EL-KFR32GW/Y-A(B) EL-KFR3 2GW/Y-A(B)
EL-KF36GW/Y-A(B) EL-KF36 GW/Y-A(B)
EL-KFR36 GW/Y-A(B)
EL-KF50GW/Y-A(B) EL-KF50 GW/Y-A(B)
EL-KFR50GW/Y-A(B) EL-KFR5 0GW/Y-A(B)
EL-KF61GW/Y-A(B) EL-KF61 GW/Y-A(B)
EL-KFR61 GW/Y-A(B)
EL-KF70GW/Y-A(B) EL-KF70 GW/Y-A(B)
EL-KFR70GW/Y-A(B) EL-KFR7 0GW/Y-A(B)
EL-KF90GW/Y-A(B) EL-KF90 GW/Y-A(B)
EL-KFR90 GW/Y-A(B)
EL-KF90GW/SY-A(B) EL-KF90 GW/SY-A(B)
EL-KFR90GW/SY-A(B) EL-KFR90 GW/SY-A(B)
AU-KF61GW/Y-A(B) AU-KF6 1GW/Y-A(B)
AU-KFR61GW/Y-A(B) AU-KFR6 1GW/Y-A(B)
AU-KF70GW/Y-A(B) AU-KF7 0GW/Y-A(B)
AU-KFR70GW/Y-A(B) AU-KFR 70GW/Y-A(B)
AU-KF85GW/Y-A(B) AU-KF8 5GW/Y-A(B)
AU-KFR85GW/Y-A(B) AU-KFR 85GW/Y-A(B)
EL1-KF20GW/Y-A(B) EL1-KF2 0GW/Y-A(B)
EL1-KFR20GW/Y-A(B) EL1-KFR2 0GW/Y-A(B)
EL1-KF26GW/Y-A(B) EL1-KF2 6GW/Y-A(B)
EL1-KFR2 6GW/Y-A(B)
EL1-KF3 2GW/Y-A(B)
EL1-KFR32GW/Y-A(B) EL1-KFR 32GW/Y-A(B)
EL1-KF20GW/N2 EL1-KF 20GW/N2Y Y-A(B)
EL1-KFR2 0GW/N2Y-A(B)
EL1-KF26GW/N2 EL1-KF2 6GW/N2Y Y-A(B)
EL1-KFR26GW/N2 EL1-KFR2 6GW/N2Y Y-A(B)
EL1-KF35GW/N2 EL1-KF3 5GW/N2Y Y-A(B)
EL1-KFR35GW/N2 EL1-KFR3 5GW/N2Y Y-A(B)
EL-KT3F53GW/Y-T2 EL-KT3F 53GW/Y-T2
EL-KT3F53GW/Y-T1 EL-KT3 F53GW/Y-T1
EL-KT3FR53GW/Y-T1 EL-KT3F R53GW/Y-T1
EL-KT3F70GW/Y-T2 EL-KT3F 70GW/Y-T2
EL-KT3F70GW/Y-T1 EL-KT3 F70GW/Y-T1
EL-KT3FR70GW/Y-T1 EL-KT3F R70GW/Y-T1
SEL-KF20GW/Y-A(B) SEL-KF2 0GW/Y-A(B)
SEL-KFR20GW/Y-A(B) SEL-KFR2 0GW/Y-A(B)
SEL-KF26GW/Y-A(B) SEL-KF2 6GW/Y-A(B)
SEL-KFR26GW/Y-A(B) SEL-KFR2 6GW/Y-A(B)
SEL-KF32GW/Y-A(B) SEL-KF3 2GW/Y-A(B)
SEL-KFR32GW/Y-A(B) SEL-KFR3 2GW/Y-A(B)
SEL-KF53GW/Y-A(B) SEL-KF5 3GW/Y-A(B)
SEL-KFR53GW/Y-A(B) SEL-KFR5 3GW/Y-A(B)
SEL-KF61GW/Y-A(B) SEL-KF6 1GW/Y-A(B)
SEL-KFR61GW/Y-A(B) SEL-KFR6 1GW/Y-A(B)
SEL-KF70GW/Y-A(B) SEL-KF7 0GW/Y-A(B)
SEL-KFR70GW/Y-A(B) SEL-KFR7 0GW/Y-A(B)
SEL1-KF26GW/Y-A(B) SEL1-KF 26GW/Y-A(B)
SEL1-KFR26GW/Y-A(B) SEL1-KFR 26GW/Y-A(B)
SEL1-KF36GW/Y-A(B) SEL1-KF 36GW/Y-A(B)
SEL1-KFR36GW/ SEL1-K FR36GW/Y Y-A(B)
0
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
CONTENTS 1. PREFACE 1.1 SAFETY PRECAUTIONS........................................................................................................................1 1.2 INSULATION RESISTANCE TEST.........................................................................................................1 1.3
FEATURES...............................................................................................................................................2
1.4 CONTROL LOCATIONS.............................................................................................................................2 1.5 OUTSIDE DIMENSIONS............................................................................................................................3 2. INSTALLATION 2.1 TOOLS NEEDED FOR INSTALLATION....................................................................................................5 2.2 ITEMS REQUIRED FOR INSTALLING THE UNIT....................................................................................5 2.3 INSTALLATION OF INDOOR UNIT AND OUTDOOR UNIT .....................................................................6 2.4 FLARING WORK AND CONNECTION OF PIPING...................................................................................8 2.5 CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT……………..................12 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................................................................ GUIDE..................................................................................................................20 ..................................................20 4. WIRING DIAGRAM 4.1 Wiring diagram for indoor units……..........................................................................................................26 4.2 Wiring diagram for outdoor units...............................................................................................................32 5. EXPLODED VIEWS…………… VIEWS………………………… ………………………… ………………...........................................................................40 …...........................................................................40 6 SPECIFICATIONS........................................................................................................................................40 SPECIFICATIONS........................................................................................................................................40 7 SPARE PARTS LIST……………………………………………………..………….……………………………..40 LIST……………………………………………………..………….……………………………..40 8 MODEL CHECK LIST……………………………………………………………………………………………….40 LIST……………………………………………………………………………………………….40
1. PREFACE This SERVICE MANUAL provides various servicing information, information, including the mechanica mechanicall 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 1M Ω. 1
1.3 FEATURES
LED lamp:
Error self diagnosis function.
POWER
Anti-icing function at cooling mode.
AUTO
Anti-cold air function at heating mode.
TIMER
Auto-defrosting and heating recovering function
DEFROST
at heating mode. Outdoor unit overload current protection.
Remote controller:
Temperature protection of the outdoor
LCD display
compressor top.
Mode button: Select the operation mode, AUTO,
Restart protection for the compressor.
COOL, DRY, HEAT (Reverse cycle
24 hours on/off mode time setting.
models only) and FAN.
Protection against over-load or too-low current
Fan speed button: Select the Fan speed, AUTO,
input through alternating current.
LOW, MED, HIGH. ON/OFF button: Press this button to operation the unit, again to stop. Temperature setting up button: Press this
1.4 CONTROL LOCATIONS For reverse cycle models:
button to increase temperature setting or adjust the TIMER in a
R TIMER TIME
clockwise direction.
POW PO WER
℃
AUTO
Temperature setting down button: Press this
OST DEFROST DEFR
button to decrease temperature For cooling only models:
setting or adjust the TIMER in a counter-clockwise counter-clockwise direction.
TIMER TIMER
Swing button: Press this button to activate the
WER POW PO
℃
auto swing, again to stop.
AUTO
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 A UT O
FAN
COOL
HIGH
DRY
MED
HEAT
LOW
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
TEMP
settings to original. Digital display button: Press this button to
M OD ODE
O N/ OF OFF
activate/eliminate activate/eliminate the digital
FAN
temperature display on the indoor SW IN IN G
E CO CO NO M Y
unit.
TIME R
CANCEL RESET LOCK
R
D GI G I I TAL DISP LAY
2
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
Size C indoor units:
1.5 OUTSIDE DIMENSIONS 1.5.1 Indoor units:
EL-KF50GW/N2Y-A(B)
EL-KFR50GW/N2Y-A(B)
EL-KF50GW/Y-A(B)
EL-KFR50GW/Y-A(B)
EL-KT3F53GW/Y-T2 EL-KT3F53GW/Y-T1
EL-KT3FR53GW/Y-T1
SEL-KF53GW/Y-A(B)
SEL-KFR53GW/Y-A(B)
Size D indoor units:
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
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: EL-KF90GW/Y-A(B)
EL-KFR90GW/Y-A(B)
Model list:
EL-KF90GW/SY-A(B)
EL-KFR90GW/SY-A(B)
Size A indoor units:
AU-KF85GW/Y-A(B)
AU-KFR85GW/Y-A(B)
EL-KF20GW/N2Y-A(B)
EL-KFR20GW/N2Y-A(B)
1.5.2 Installation plate
EL-KF26GW/N2Y-A(B)
EL-KFR26GW/N2Y-A(B)
For Size A indoor unit:
EL-KFR20GW/N1Y-A(B)
EL-KFR26GW/N1Y-A(B)
150m m or more to ceiling Installation plate
Indoor unit outline
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)
120mm or more to wall
120mm or more to wall
0 5 2
5 4
Left refrigerant pipe hole D65
Right refrigerant pipe hole D65
750
For Size B indoor unit: 150mm or more to ceiling Installation plate
Indoor unit outline
120mm or more to wall
0 8 2
120mm or more to wall 0 5
Left refrigerant pipe hole D65
50
Right refrigerant pipe hole D65
815
SEL1-KFR26GW/Y-A(B)
Size B indoor units:
For Size C indoor unit: 150mm or more to the ceiling
EL-KF36GW/N2Y-A(B)
EL-KFR36GW/N2Y-A(B)
Indoor unit outline
EL-KFR36GW/N1Y-A(B)
120mm or more to the wall
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)
Installation plate 49 120mm or more to the wall
0 5
0 5
Left pipe hole D65
SEL1-KFR36GW/Y-A(B)
3
55
90 1000
Righ t pipe pipe hole D65 D 65
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
For Size D indoor unit: 150 or more to the ceiling Hooked Part 1080
432
108
120mm or more to the wall
2 2
120mm or more to the wall
8 5
8 5 0 5
0 5
115
Left Pipe hole D95
115 465
Right pipe hole D95
465
For Size E indoor unit: 150mm or more to the ceiling Hooker Part
Hooked Part 1250
257
815
120mm or more to the wall
120mm or more to the wall 5 2 3
Left pipe hole D95
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:
Indoor Unit Outline
178
EL1-KFR20GW/Y-A(B)
Hooked Part
Hooked Part
432
EL1-KF20GW/Y-A(B)
58
55
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:
5 5
5 5
EL-KFR26GW/N1Y-A(B)
Righ t pipe pe hole D95 Indoor In door unit outline
1.5.3 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
A: Depth (mm)
B: Width (mm)
C: Height (mm)
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)
Unit
Size F
Size G
Size H
Size I
Size J
Size J outdoor units:
A(mm)
235
250
285
335
330
EL-KF90GW/Y-A(B)
EL-KFR90GW/Y-A(B)
B(mm)
700
780
760
845
895
EL-KF90GW/SY-A(B)
EL-KFR90GW/SY-A(B)
C(mm)
535
540
590
695
860
AU-KF85GW/Y-A(B)
AU-KFR85GW/Y-A(B)
D(mm)
275
298
315
360
355
EL-KT3F70GW/Y-T2
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) 4
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
2 INSTALLATION
2.2 ITEMS REQUIRED FOR INSTALLING THE
2.1 TOOLS NEEDED FOR INSTALLATION
UNIT
Level gauge
No.. No
Screwdriver
1
Installation Plate
1
Electric drill
2
Self-tapping Self-tappi ng Screw ST3.9x25
8
Hole core drill ( φ85mm or φ115mm depending
Name Na me of Acce Access ssor orie ies s
Quan Quanti tity ty
(Type “A”)
on Model)
3
Plastic Expansion Sheath
8
Flaring tool set
4
Drain Joint
1
Specified torque wrenches: 1.8kgm, 4.2kgm,
5
Wrapping Tape
6
Connection Pipe Assembly
5.5kgm, 6.6kgm (Vary depending on model No.)
(Detail in below table)
Spanner (half union)
7
Connecting Cable
A glass of water
8
Additional Drain Pipe (Outer
Hexagonal wrench (4mm)
Parts purchased separately
Diameter15.5mm)
Gas-leak detector Vacuum pump Gauge manifold User’s manual Thermometer
9
Insulation Materials
10
Cable Tie (5~10)
11
Remo Re mote te Co Cont ntro roll Ho Hold lde er
1
12
Self Self-t -tap appi ping ng Scre Screw w ST2. ST2.9x 9x10 10
2
(Type “B”) 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
6.35mm
9.53mm
9,000Btu/h
1/4”
3/8”
12,000Btu/h
6.35mm
12.7mm
18,000Btu/h
1/4”
1/2”
21,000Btu/h
9.53mm
16mm
24,000Btu/h
3/8”
5/8”
30,000Btu/h 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.
5
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
Typical installation
6. The indoor indoor unit should 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 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
CAUTIONS: 1.
2.3.3). More th an1 5cm
Ensure that the space around the left and right of the indoor unit is more than 12cm.
2.
More Mor e t han 12cm
The indoor unit should be installed allowing a
More t han 12cm
minimum clearance of 15cm from the ceiling. 3. Use a stud finder finder to locate studs to prevent
More th th an 1.7m Less than 2.3m
unnecessary damage to the wall. 4.
5.
For optimum performance the Indoor Unit should be installed on the wall in areas where
2.3.2 Outdoor unit
the height from the floor to the ceiling is not
● If an awning is built over the outdoor unit to
more than 2.3 meters.
prevent direct sunlight or rain exposure, make
A minimum pipe run of 3 meters is required to
sure that heat radiation from the condenser is not
minimize vibration & excessive noise.
restricted. 6
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
● Ensure that the clearance around the back of
GAS
the unit is more than 20cm and left side is more
Piping
than 10cm.
LIQUID
● The front of the unit should have more than
3/8”
1/2”
5/8”
9.53mm
12.7mm
16.0mm
1/4”
1/4”
3/8”
6.35mm
6.35mm
9.53mm
100cm of clearance and the connection side (right
Standard Length(m)
5
5
5
side) should have more than 60cm of clearance.
Max. Elevation B (m)
5
5
5
● Do not place animals and plants in the path of
Max. Length A (m)
10
10
10
the air inlet or outlet.
Additional
● Take the air conditioner weight into account
Refrigerant Refrigerant (g/m)
30
30
65
and select a place where noise and vibration will
Cautions:
not be an issue.
● Capacity is based on standard length and
● Select a place so that the warm air and noise
maximum allowance length is on the basis of
from the air conditioner do not disturb neighbors.
reliability.
20c cm t han 20 More than More
● Oil trap should be installed every 5~7 meters.
10c cm More than 10
● When the connecting pipe is longer than 5
meters, Additional refrigerant should be added into the unit according to the above table through an 60cm than More th More
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
100cm M or e tha n 100cm
according to the wall structure and corresponding mounting points on the installation plate.
Rooftop installation:
1. Fit the installation plate horizontally horizontally on
● If the outdoor unit is installed on a roof
structural parts of the wall with spaces around the
structure, be sure to level the unit.
installation plate (Detailed on page 3 as
● Ensure the roof structure and anchoring
applicable).
method are adequate for the unit location.
2. If the wall is made of brick, concrete or the like,
● Consult local codes regarding to rooftop
drill eight (8) 5mm diameter holes in the wall.
mounting.
Insert Plastic Expansion Sheath for appropriate
● If the outdoor unit is installed on roof
mounting screws.
structures or external walls, this may result in
3. Fit the installation plate on the wall with eight (8)
excessive noise and vibration, and may also be
type “A” screws.
classed as a non serviceable installation. 2.3.3 Piping length and elevation
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 7
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
side.
2.4.1.4 Flaring work
2. Always use wall hole conduit when drilling metal grid, metal plate or the like. ● Carry out flaring work using flaring tool as
2.4 FLARING WORK AND CONNECTION OF
shown below.
PIPING The main cause for gas leakage is due to defects
Out diameter
in flaring work. Carry out correct flaring work using the following procedure.
1/4” (6.35mm) 3/8” (9.53mm) 1/2” (12.7mm) 5/8” (16.0mm)
2.4.1 Flaring work 2.4.1.1 Cut the pipes and the cable. ● Use the piping kit accessory (if applicable) or
“A” (mm)
Max. 1.3 1.6 1.8 2.4
Min. 0.7 1.0 1.0 1.8
the pipes purchased locally.
Hold copper pipe firmly in a die according to the
● Measure the distance between the indoor and
dimension shown in the table above.
the outdoor unit.
2.4.1.5 Check
● Cut the pipes a little longer than measured
● Compare the flared work with the adjacent
distance.
diagram.
● Cut the cable 1.5m longer than the pipe
● If flare is found to be defective, cut off the
length.
flared section and do flaring work again.
2.4.1.2 Burrs removal
2.4.2 Connection of pipes - Indoor
● Completely remove all burrs from the cut cross
● Prepare the indoor unit’s piping and drain hose
section of pipe/tube.
for installation through the wall.
● Place the end of the copper tube/pipe in a
● Remove the tubing retainer (see illustration
downward direction as you remove burrs in order
right) and pull the tubing and drain hose away
to avoid dropping burrs into the tubing.
from chassis (If required). For some models this is not needed. Replace the tubing retainer in its original position.
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.)
CAUTION When installing the indoor unit, be sure to remove the relevant sections where required (see 8
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
adjacent diagram for example). This will allow piping and cable routing to be completed without damaging the unit. 2.4.2.1 For rear right piping Note: When viewed from the front of the indoor unit. 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 2.4.2.1.1 Route the indoor tubing and the drain
the indoor unit left and right.
hose in the direction of rear right.
● Press the lower left and right sides of the unit
2.4.2.1.2 Insert the connecting cable into the
against the installation plate until the hooks
indoor unit from the outdoor unit through the
engage into their slots (clicking sound).
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
2.4.2.1.7 Connecting the piping to the indoor unit
located at the lowest side of the bundle. Locating
and the drain hose to drain pipe.
at the upper side can cause drain pan to overflow
● Align the centre of the piping and sufficiently
inside the unit.
tighten the flare nut by hand.
● Tighten the flare nut with a wrench, in
accordance with the following table. Note: If the drain hose is routed inside the room, insulate the hose with an insulation material so that dripping from "sweating" (condensation) (condensation) will not damage furniture or floors. *Foamed polyethylene or equivalent is
Outside
recommended.
Diameter
Tightening
Additional
Torque
Tightening
(Kg.m)
Torque (Kg.m)
2.4.2.1.4 Insert the piping, drain hose and the
1/4” (6.35mm)
1.6
2.0
connecting cable into the piping hole.
3/8” (9.53mm)
3.0
3.5
2.4.2.1.5 Set the piping and the drain hose to the
1/2” (12.7mm)
5.0
5.5
back of the chassis c hassis with the tubing holder.
5/8” (16.0mm)
7.5
8.5
● Set the tubing retainer into position and tighten
● When extending the drain hose of the indoor
screw.
unit, install the drain pipe extension as shown in 9
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
adjacent diagram.
indoor unit from the outdoor unit through the piping hole. ● Do not connect the cable to the indoor unit. ● Make a small loop with the cable for easy
connection later. 2.4.2.2.3 Tape the drain hose and the connecting 2.4.2.1.8 Wrap the insulation material around the
cable. Be sure that the drain hose is located at the
connecting portion.
lowest side of the bundle. Locating at the upper side can cause drain pan to o overflow verflow inside the unit.
● Overlap the connection pipe heat insulation
and the indoor unit pipe heat insulation material. Bind them together with vinyl tape so that t hat there is no gap. Note: If the drain hose is routed inside the room, insulate the hose with an insulation material so that dripping from "sweating" (condensation) (condensation) will
● Wrap the area which accommodates the rear
piping housing section with vinyl tape.
not damage furniture or floors. *Foamed polyethylene or equivalent is recommended.
● Bundle the piping and drain hose together by
2.4.2.2.4 Insert the piping, drain hose and the
wrapping them with vinyl tape over the range
connecting cable into the piping hole.
within which they fit into the rear piping housing section.
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
2.4.2.2 For rear left piping
the installation plate to separate the bottom of the
Note: When viewed from the front of the indoor
indoor unit from the wall.
unit.
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
2.4.2.2.1 Route the indoor tubing and the drain
tighten the flare nut by hand.
hose to the required piping hole position in the direction of left. 2.4.2.2.2 Insert the connecting cable into the 10
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
wrapping them with vinyl tape over the range within which they fit into the rear piping housing section. ● Tighten the flare nut with a wrench, in
accordance with the following table. 2.4.2.2.8 Set the piping and the drain hose to the back of the chassis with the tubing holder. ● Set the tubing retainer into position and
tighten screw. Tightening
Additional
Torque
Tightening
(Kg.m)
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
Outside Diameter
● When extending the drain hose of the indoor
2.4.2.2.9 Reroute the piping and the drain hose
unit, install the drain pipe extension as shown in
across the back of the chassis, for rear left side
adjacent diagram.
external passage.
Pi ping for passage through piping hole
2.4.2.2.10 Locating the indoor unit 2.4.2.2.7 Wrap the insulation material around the
● Remove the spacer.
piping connections.
● 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.) ● Overlap the connection pipe heat insulation
● Ensure that the hooks are properly seated on
and the indoor unit pipe heat insulation
the installation plate by moving the indoor unit left
material. Bind them together with vinyl tape
and right.
so that there is no gap.
● Press the lower left and right sides of the unit
against the installation plate until the hooks engage into their slots (clicking sound). ● Wrap the area which accommodates the rear
piping housing section with vinyl tape.
2.4.3 Connection of pipes - outdoor 2.4.3.1 Align the centre of the piping and
● Bundle the piping and drain hose together by 11
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
sufficiently tighten the flare nut by hand.
2.5 CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT CAUTION Ensure that all electrical work complies with relevant Standards and Supply Authority
2.4.3.2 Finally, tighten the flare nut with torque
Service Rules.
wrench until the wrench clicks.
An individual branch Circuit Breaker/Fuse must
● Tighten the flare nut with a wrench, in
be used with this Air Conditioner. See the
accordance with the following table. Tightening
Additional
Torque
Tightening
(Kg.m)
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
Outside Diameter
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. Connection ● Refer to the attached Electrical Connection Diagram located on the panel of the outdoor unit to connect the wire.
Max. current
Circuit Breaker /
Wire Size
(A)
Fuse Rating (A)
(mm )
=1.0
>8 & =1.5
>12.5 & =2.5
>16 & =4.0
>25 & =6.0
2
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 12
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
those of the indoor unit.)
specifically for the air conditioner. As for the
1. Lift the front panel up and remove the
method of wiring, be guided by the circuit
window cover from the indoor unit by
diagram posted on the inside of control cover.
loosening the screw.
2) The screws which which fasten fasten the wiring in the
2. Connect wires to the Indoor Unit terminals
casing of electrical fittings may come loose
from the Outdoor Unit as identified by their
from vibrations to which the unit is subjected
colors.
during the course of transportation. Check
3. Secure the cable with the cord clamp.
them and make sure that they are all tightly
4. Wrap wires (conductors) that were not
fastened. If they are loose, it could cause
connected with insulating insulating tape so that they do
burn-out of the wires.
not touch any electrical or metal parts.
3)
Specification of power source.
4)
Confirm that electrical capacity of the installation is sufficient.
5)
Ensure that the the starting starting voltage is maintained maintained at more than 90 percent of the rated voltage marked on the name plate.
Notes:
6) Confirm that the cable thickness is as
Wrong wire connection may cause some
specified in the power source specification.
electrical parts to malfunction.
Particularly note the relation between cable
The length of the power supply cord should
length and thickness. (Refer to page 11.)
be at least 1.8m measured from the power
7)
supply cord entry of the cabinet to the middle
Always install a Residual Current Device (RCD) in wet or moist area.
of the live pin of the plug.
8)
The following may be caused by voltage drop.
2.5.2 Connect the cable to the outdoor unit
Vibration of a contactor, which will damage
2.5.2.1 Remove the control cover from the unit by
the contact point, fuse f use blowing, disturbance of
loosening the screw. Connect the wires to the
the normal function of the overload.
terminals on the control board individually.
9)
The means for disconnection disconnect ion from a power
2.5.2.2 Secure the cable onto the control board
supply shall be incorporated in the fixed
with the cord clamp.
wiring and have an air gap contact separation
2.5.2.3 Re-fix the control cover to the original
of at least 3mm in each active (phase)
position with the screw.
conductor.
2.5.2.4 Use a recognized recognized circuit breaker (Refer to table on page 11.) between the power source and the unit. An isolation device to adequately disconnect disconnect all supply lines must be fitted. 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.
CAUTIONS: After confirming the above conditions, prepare the wiring as follows: 1) Never fail to have an an individual individual power circuit 13
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
2.6.2.2 In cases where the outdoor unit is installed
2.6 CHECKING THE DRAINAGE AND
below the indoor unit perform the following.
FORMING THE PIPE 2.6.1 Checking the drainage
● Tape the piping, drain hose and connecting
2.6.1.1 To remove the front panel from the indoor
cable from down to up.
unit.
● Secure the tapped piping along the exterior
● Pull the lower left and right sides of the grille
wall using saddle or equivalent.
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. 2.6.2.3 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. 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. 14
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
Indoor unit
2.7 AIR PURGING 2.7.1 Air purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below.
Ou tdo tdoor or unit
● 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
Manifoll d set Manifo set
refrigeration system. Therefore, the indoor unit and tubing between the
Pressure gauge
indoor and outdoor unit must be leak tested and
Lo
Hi
evacuated to remove any non-condensable substance and moisture from the system. 2.7.2 Air purging with vacuum pump
Charge hose
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
Nitr ogen g as cyli nder ( in vertical sta nding p osition)
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 CAUTION
● Connect the manifold set (with pressure
To avoid nitrogen entering the refrigerant
gauges) and dry nitrogen gas cylinder to this
system in a liquid state, the top of the cylinder
service port with charge hoses.
must be higher than its bottom then you CAUTION
pressurise the system. Usually, the cylinder is
Be sure to use a manifold set for air purging. If it
used in a vertical standing position.
is not available, use a stop valve for this
● Do a leak test of all joints of the tubing (both
purpose. The "Hi" knob of the manifold valve
indoor and outdoor) and both gas and liquid side
must always be kept closed.
service valves. Bubbles indicate a leak. Be sure to
● Pressurizes the system to no more than 1MPa
wipe off the soap with a clean cloth.
(Approx. 145psi) with dry nitrogen gas and close
● After the system is found to be free of leaks,
the cylinder valve when the gauge reading
relieve the nitrogen pressure by loosening the
reaches 1MPa (Approx. 145psi). Next, test for
charge hose connector at the nitrogen
leaks with liquid soap.
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 15
GD Midea Refrigerant Equipment Co. Ltd
Service manual for Electrolux split Series
Indoor unit
on the indoor unit connection or outdoor unit connections using a soft brush to check for leakage of the connecting points of the piping. 2. If bubbles come out, the pipes have leakage. Note:
Outdoor unit
A: Lo stop valve B: Hi stop valve C and D: connections to the indoor unit.
M anif anifold old set Pressure gauge
2.7.2.3 Evacuation
Open
Close
● 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
Vacuum pump
capacity. Pipe Length (L)
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