Toshiba RAS-24NKHD-E4 User manual

FILE NO. SVM-05016-1
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
RAS-24NKHD-E4 / RAS-24UAH-E4
RAS-18NKHD-E4 / RAS-18UAH-E4
RAS-24NKD-E4 / RAS-24UA-E4
RAS-18NKD-E4 / RAS-18UA-E4
RAS-24NKD-AR4 / RAS-24UA-AR4
RAS-18NKD-AR4 / RAS-18UA-AR4
RAS-24NKDX4 / RAS-24UAX4
RAS-18NKDX4 / RAS-18UAX4
RAS-24NKDX4-T / RAS-24UAX3-T1
RAS-18NKDX4-T2 / RAS-18UAX4-T2
18 Class
(Heat pump model) 24 Class18 Class (Cooling only model)
June 2005

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FILE NO. SVM-05016
CONTENTS
1. SPECIFICATIONS
2. CONSTRUCTION VIEWS
2-1 Indoor Unit
2-2 Outdoor Unit (RAS-24UAH-E4, RAS-24UA-E4, RAS-24UAX4, RAS-24UA-AR4,
RAS-24UAX3-T1, RAS-18UAX4-T2)
2-3 Outdoor Unit (RAS-18UAH-E4)
2-4 Outdoor Unit (RAS-18UA-E4, RAS-18UAX4, RAS-18UA-AR4)
3. WIRING DIAGRAM
3-1 RAS-24NKHD-E4/ RAS-24UAH-E4
3-2 RAS-18NKHD-E4/ RAS-18UAH-E4
3-3 RAS-24NKD-E4/ RAS-24UA-E4, RAS-24NKD-AR4/ RAS-24UA-AR4
RAS-24NKDX4/ RAS-24UAX4
3-5RAS-18NKD-E4/ RAS-18UA-E4, RAS-18NKDX4/ RAS-18UAX4
RAS-18NKD-AR4/ RAS-18UA-AR4
3-6 RAS-18NKDX4-T2 / RAS-18UAX4-T2
4. SPECIFICATION OF ELECTRICAL PARTS
4-1 Indoor Unit (RAS-24NKHD-E4, RAS-18NKHD-E4)
4-2 Outdoor Unit (RAS-24UAH-E4)
4-3 Outdoor Unit (RAS-18UAH-E4)
4-4 Indoor Unit (RAS-24NKD-E4, RAS-24NKDX4, RAS-24NKD-AR4, RAS-24NKDX4-T,
RAS-18NKD-E4, RAS-18NKDX4, RAS-18NKD-AR4, RAS-18NKDX4-T2)
4-5 Outdoor Unit (RAS-24UA-E4, RAS-24UAX4, RAS-24UAX3-T1)
4-6 Outdoor Unit (RAS-24UA-AR4)
4-7 Outdoor Unit (RAS-18UAX4, RAS-18UA-E4)
4-8 Outdoor Unit (RAS-18UA-AR4)
4-9 Outdoor Unit (RAS-18UAX4-T2)
5. REFRIGERATION CYCLE DIAGRAM
5-1 RAS-24NKHD-E4/ RAS-24UAH-E4
5-2 RAS-18NKHD-E4/ RAS-18UAH-E4
5-3 RAS-24NKD-E4/ RAS-24UA-E4
RAS-24NKDX4/ RAS-24UAX4, RAS-24NKDX4-T/ RAS-24UAX3-T1
5-4RAS-18NKD-E4/ RAS-18UA-E4
RAS-18NKDX4/ RAS-18UAX4
5-5RAS-18NKD-AR4/ RAS-18UA-AR4
5-7RAS-18NKDX4-T2 / RAS-18UAX4-T2
6. CONTROL BLOCK DIAGRAM
6-1 RAS-24NKHD-E4, RAS-18NKHD-E4
6-2 RAS-18NKD-E4 / RAS-18UA-E4, RAS-18NKDX4 / RAS-18UAX4
RAS-18NKD-AR4 / RAS-18UA-AR4, RAS-18NKDX4-T2 / RAS-18UAX4-T2
RAS-24DKD-E4 / RAS-24UA-E4, RAS-24NKDX4 / RAS-24UAX4
RAS-24NKD-AR4 / RAS-24UA-AR4, RAS-24NKDX4-T / RAS-24UAX3-T1
5-6RAS-24NKD-AR4/ RAS-24UA-AR4
3-4 RAS-24NKDX4-T / RAS-24UAX3-T1

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FILE NO. SVM-05016
7. OPERATION DESCRIPTION
7-1 Outline of Air Conditioner Control
7-2 Description of Operation Circuit
7-3 Hi POWER Mode
7-4 High-Temperature Limit Control
7-5 Low-Temperature Limit Control
7-6 Defrosting Operation
7-7 Auto Restart Function
7-8 Filter Check Lamp
8. INSTALLATION PROCEDURE
8-1 Safety Cautions
8-2 Installation Diagram of Indoor and Outdoor Units
8-3 Installation
8-4 Indoor Unit
8-5 Outdoor Unit
8-6 How to Set Remote Control Selector Switch
8-7 Others
9. TROUBLESHOOTING CHART
9-1 Troubleshooting Procedure
9-2 Basic Check Items
9-3 Primary Judgement
9-4 Self-Diagnosis by Remote Control (Check Code)
9-5 How to Diagnose Faulty Part
9-6 Troubleshooting for Indoor Unit
9-7 Troubleshooting for Wiring (Interconnect cable and Serial Signal Wire)
9-9Troubleshooting for P.C. Board
9-10 Troubleshooting for Remote Control
10. PARTS REPLACEMENT
10-1 Indoor Unit
10-2 Outdoor Unit (RAS-24UAH-E4, RAS-24UA-E4, RAS-24UAX4, RAS-24UA-AR4
RAS-24UAX3-T1, RAS-18UAX4-T2)
10-3 Outdoor Unit (RAS-18UAH-E4)
10-4 Outdoor Unit (RAS-18UA-E4, RAS-18UAX4, RAS-18UA-AR4)
11. EXPLODED VIEWS AND PARTS LIST
11-1 Indoor Unit (E - Parts Assy)
11-2 Indoor Unit
11-3 Outdoor Unit (RAS-24UAH-E4)
11-4 Outdoor Unit (RAS-18UAH-E4)
11-5 Outdoor Unit (RAS-24UA-E4, RAS-24UAX4, RAS-24UAX3-T1)
11-6 Outdoor Unit (RAS-24UA-AR4)
11-7 Outdoor Unit (RAS-18UAX4-T2)
11-8 Outdoor Unit (RAS-18UA-E4, RAS-18UAX4)
11-9 Outdoor Unit (RAS-18UA-AR4)
7-9 Self-Cleaning function
7-10 QUIET Mode
7-11 COMFORT SLEEP mode
9-8Troubleshooting for Air Purifier and Minus Ion

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FILE NO. SVM-05016
MODEL
RAS-24NKHD-E4RAS-24NKD-E4RAS-24NKDX4RAS-24NKD-AR4RAS-24NKDX4-T
RAS-24UAH-E4
RAS-24UAX4 RAS-24UA-AR4
RAS-24UAX3-T1
ITEM Cooling Heating Cooling Cooling Cooling Cooling
Capacity kW
220 V 240 V 220 V 240 V 220 V 240 V 220 V 240 V 220 V 240 V 220 V
6.30 6.30 6.80 6.90 6.40 6.45 6.40 6.45 6.40 6.45 6.40
Phase 1∅
Power source V 220 – 240 220
Hz 50
Power consumption W 2430 2510 2390 2490 2350 2440 2350 2440 2350 2440 2350
Power factor %96929490999099909686 99
220 V 240 V 220 V 240 V 220 V 240 V 220 V 240 V 220 V 240 V 220 V
Running current A0.3/ 0.3/ 0.3/0.3/0.3/10.5 0.3/11.0 0.3/10.50 0.3/11.0 0.3/10.8 0.3/11.5 0.3/10.50
Indoor/Outdoor 11.2 11.1 11.2 11.28
Starting current A6067 67 59 67
Moisture removal lit/h 2.5 2.7
Noise Indoor (H/M/L) dB 45/43/41/39/37
Outdoor (220 – 240 V) dB 56-57 57-58 56-57 56
Refrigerant Name of refrigerant R22
Rated amount kg
Refrigerant control Capillary tube
Gas side size mm ∅15.88
Connection type Flare connection
Liquid side size mm ∅6.35
Interconnection Connection type Flare connection
pipe Maximum length m15*1
(One way) 25*2
Maximum height m10
difference
INDOOR UNIT RAS-24NKHD-E4RAS-24NKD-E4RAS-24NKDX4RAS-24NKD-AR4RAS-24NKDX4-T
Height mm 298
Dimensions Width mm 998
Depth mm220
Net weight kg 14
Evaporator type Finned tube
Indoor fan type Cross flow fan
High fan m3/h 900
Air volume Medium fan m3/h 750 800 750
Low fan m3/h 600 650 600
Fan motor output W 30
Air filter Honeycomb woven filter with PP frame
OUTDOOR UNIT RAS-24UAH-E4RAS-24UA-E4RAS-24UAX4RAS-24UA-AR4RAS-24UAX3-T1
Height mm 690
Dimensions Width mm 880
Depth mm310
Netweight kg6158 59 58
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 3380 3560 3380 3560 3380 3560 3380
Fan motor output W 65
Compressor Model 2JS386D5BB02 PH400X3CS-4KTS1
Output W1800 1800
Safety device IOL, Td Sensor IOL
Louver type Automatic louver
Usable outdoor temperature range °C 15 ~ 43 –10 ~ 24 15 ~ 43 21 ~ 43 21 ~ 52 21 ~ 43
1. SPECIFICATIONS
RAS-24UA-E4
1.75 1.70 1.80 1.70 1.70
3380 3560 3380 3560
PH400X3CS-4KT1
1800 1900
PH400X3CS-4KT1
Note: * 1 Charge less pipe
* 2 Maximum pipe

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FILE NO. SVM-05016
MODEL
RAS-18NKHD-E4RAS-18NKD-E4RAS-18NKDX4RAS-18NKD-AR4RAS-18NKDX4-T2
RAS-18UAH-E4RAS-18UA-E4RAS-18UAX4RAS-18UA-AR4RAS-18UAX4-T2
ITEM Cooling Heating Cooling Cooling Cooling Cooling
Capacity kW
220 V 240 V 220 V 240 V 220 V 240 V 220 V 240 V 220 V 240 V 220 V
5.05 5.05 5.80 5.90 5.20 5.25 5.20 5.25 5.20 5.25 5.10
Phase 1∅
Power source V 220 – 240 220
Hz 50
Power consumption W 1920 2040 1800 1950 1910 1990 1910 1990 1920 2040 1560
Power factor %9588948692859285958598
220 V 240 V220 V 240 V 220 V 240 V 220 V 240 V 220 V 240 V 220 V
Running current A 0.2/ 0.2/ 0.2/ 0.2/ 0.2/9.250.2/9.50 0.2/9.25 0.2/9.50 0.2/9.0 0.2/9.80.3/6.94
Indoor/Outdoor 9.0 9.5 8.5 9.3
Moisture removal lit/h 2
Noise
Indoor (H/M/L) dB 42/41/39/37/35
Outdoor (220 – 240 V) dB 52-53 53-54 51 52 51 52 515256
Refrigerant Name of refrigerant R22
Rated amount kg 1.17 1.17 1.20
Refrigerant control Capillary tube
Gas side size mm ∅12.7 ∅15.88
Connection type Flare connection
Liquid side size mm ∅6.35
Interconnection Connection type Flare connection
pipe Maximum length m15*1
(One way) 20*2
Maximum height m8
difference
INDOOR UNIT RAS-18NKHD-E4 RAS-18NKD-E4 RAS-18NKDX4 RAS-18NKD-AR4 RAS-18NKDX4-T2
Height mm 298
Dimensions Width mm 998
Depth mm220
Net weight kg 14
Evaporator type Finned tube
Indoor fan type Cross flow fan
High fan m3/h 750 800 750 900
Air volume Medium fan m3/h 650 700 650 650
Low fan m3/h 530 570 530 530
Fan motor output W30
Air filter Honeycomb woven filter with PP frame
OUTDOOR UNIT RAS-18UAH-E4 RAS-18UA-E4 RAS-18UAX4 RAS-18UA-AR4 RAS-18UAX4-T2
Depth mm
Net weight kg 54414144 51
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 2120 2200 2120 2200 2120 2200 3380
Fan motor output W
654265
Compressor Model
2JS350D5DA02 PH290X2C-4FT1
Output W 1700 1800 1700
Safety device IOL, Td Sensor IOL
Louver type Automatic louver
Usable outdoor temperature range °C 15 ~ 43 –10 ~ 24 15 ~ 43 15 ~ 43 21 ~ 52 21 ~ 43
Starting current A35
Height mm 690
Dimensions Width mm880
PH340X3C-4KT1
42
45
550
780
270
538
830
300
310
2105 23102105 2310
1500
PH340X3C-4KTS1
Note: * 1 Charge less pipe
* 2 Maximum pipe
1.47

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FILE NO. SVM-05016
Note : 1
•Capacity is based on the following temperature conditions.
Note : 2
•Charge refrigerant according to the table below.
RAS-24NKHD-E4/ RAS-24UAH-E4RAS-18NKHD-E4/ RAS-18UAH-E4
RAS-24NKD-E4/ RAS-24UA-E4RAS-18NKD-E4/ RAS-18UA-E4
Refrigerant RAS-24NKDX4/ RAS-24UAX4RAS-18NKDX4/ RAS-18UAX4
RAS-24NKD-AR4/ RAS-24UA-AR4RAS-18NKD-AR4/ RAS-18UA-AR4
RAS-24NKDX4-T/ RAS-24UAX3-T1RAS-18NKDX4-T2/ RAS-18UAX4-T2
1No need to charge 15 m or less 15 m or less
extra refrigerant
2Need to charge Over 15 m up to 25 m (30 g/m) Over 15 m up to 20 m (20 g/m)
extra refrigerant
Temperature Condition JIS B8615-1
Cooling Heating
Indoor unit inlet air temperature (DB) 27°C 20°C
(WB) 19°C 15°C
Outdoor unit inlet air temperature (DB) 35°C 7°C
(WB) 24°C 6°C

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FILE NO. SVM-05016
2. CONSTRUCTIONVIEWS
2-1. Indoor Unit
Air outlet
Plasma air purifierHeat exchangerAir filter
Air inlet
998
220
50
75
8
Knock out system
75 56
50
58 19
163
Wireless remote control
Connection pipe (0.49 m)
(Flare ∅6.35)
Drain hose (0.54 m)
90 or more
Minimum distance to ceiling
100
40
48
450
20
20
48
100
∅
65
998
298
10
763.5
5555 55 41
29
∅
65
(For stud bolt ∅ 6)
(For stud bolt ∅ 8 − ∅ 10)
Installation
Plate outline
Outline of indoor unit
Connection pipe (0.39 m)
(For 24 series and RAS-18NKDX4-T2 : Flare ∅15.88)
(For 18 series except RAS-18NKDX4-T2 : Flare ∅12.7)
Back body
Front panel
Grille inlet
298
75
7
51
Knock out system

–7 –
FILE NO. SVM-05016
2-2.Outdoor Unit (RAS-24UAH-E4, RAS-24UA-E4, RAS-24UAX4, RAS-24UA-AR4,
RAS-24UAX3-T1,RAS-18UAX4-T2)
120
63.8
340
600
27
50
690
880 74
140
88
310
340
340 (pitch) 12
12
364
A
∅12x18 hole
ADetail Drawing
∅25 Drain outlet
52
Handle
Installation dimension
600
100 or more 100 or more
600 or more
600 or more
Air outlet
Air inlet
Electric Parts cover
Liquid side (Flare ∅6.35)
Gas side (Flare ∅15.88)
Service Port
600
340
23
68
Handle
4-∅12x18
for ∅8 −∅10
anchor bolt
4-∅12x18 holes
(for ∅8 −∅10 anchor bolt)

–8 –
FILE NO. SVM-05016
2-3.Outdoor Unit (RAS-18UAH-E4)
A
ADetail Drawing
∅6 hole
R10
∅11x14 hole
∅25 Drain outlet
Fan guard
∅420
Electric Parts cover
Liquid side (Flare ∅6.35)
Gas side (Flare ∅12.7)
Installation dimension
100 or more Air inlet 600 or more
100 or more
Air inlet
Air
outlet
600 or more
600
50 35
600
344
325
91 54
60
50
90
600
830
90
120
52
23
325
Handle
538
300
Service Port
4x∅11x14
for ∅8 −∅10
anchor bolt
8-∅6 holes
(for fixing outdoor unit)
6-∅11x14 holes (for ∅8 −∅10 anchor bolt)

−9−
FILE NO. SVM-05016
2-4.Outdoor Unit (RAS-18UA-E4, RAS-18UAX4, RAS-18UA-AR4)
310
310 302
102
310
302
302
530
265
600
ADetail Drawing (Back Leg)
A
BDetail Drawing (Front Leg)
52
R15
32.5 115 125
R5.5
∅30 Drain outlet
FAN GUARD
36
∅6 Hole
2-∅11x14 Hole
(For ∅8-∅10 anchor bolt)
∅436
4x ∅ 11 Long holes (For ∅8-∅10 anchor bolt)
∅11x14 Hole
∅6 Hole
36
52
310
330
R15
270 600 90
780 62
COVER PV
Electrical
part cover
Liquid side
(Flare ∅6.35)
Gas side
(Flare ∅12.7)
Service port
600 or more
100 or more
600 or more
100 or more
325
600
Air inlet
Air outlet
Installation dimension
120
75
54
B
Z
ZView

– 10 –
FILE NO.SVM-05016
3. WIRING DIAGRAM
3-1. RAS-24NKHD-E4 / RAS-24UAH-E4
Louver
motor
COLOR IDENTIFICATION
BRW : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
DRN : ORANGE
GRN : GREEN
GRN&YEL : GREEN & YELLOW
BLK P04
DSA Varistor
F01
6.3A 250V
Varistor
MAIN P.C BOARD
(WP - 003)
Serial Signal
Circuit
CN23
WHI
BLK
RED
CN30
CN31
AC Fan motor
TEMP FUSE
Thermo
sensor
(TA)
Heat exchanger
sensor
(TC)
Air purifier
Electrode
Fan motor
Drive
Circuit
Power supply
circuit
WP-003
+ 12 VDC
+ 5 VDC
CN13
CN25
CN07
Infrared rays receive
and Indication parts
CN01
CN03CN10CN11
BLK
BLK
BLK BLK
BLK
WHI
RED
CN34 Micro SW.
CN33
High-voltage
Power supply
Ion electrode
YEL
GRY
BRW
REDRED
RED
BLK
BLK
BLK
BRW
BRW
BRW
BRW
REW
BLK
BLK/RED
BRW
BRW
RED
BRW
BLU
WHI BLU
BLU
BLU
BLU
BLU BLU BLU
BLU
BLU
BLU
PNK
YEL
GRN
RED
BRW
3
12
INDOOR
DISCHARGE
PIPE
SENSOR (TD)
HEAT
EXCHANGER
SENSOR (TE)
CN08
CN07 BLU
BLU
BLK
BLK
11
2
33
11
2
33
i
LN3
12
i
FERRITE CORE
GRN&YEL
RED
RED
BLK
BLK
MAGNETIC
CONTACTOR
RA1
A2
52C
U
S
V
T
W
PNK
WHI
COMPRESSOR TERMINAL
BLK
S
R
CWHI BLK BLK
COIL FOR
4 WAY VALVE
RED
RED
RED
CAPACITOR
(1/L1)
(2/T1)
(3/L2)
(4/T2)
(5/L3)
(6/T3)
CAPACITOR
BLK
BLK
WHI
RED CN01
CN05
GRY
1
3
5
7
9
1
3
5
7
9
GRN&YEL
CHASSIS
TRANSFORMER
BLK
BLK
RED
RED
11
33
11
33
2
CN11
BLU
YEL
1
3
1
3
1
13
CN02
BLU
BLU
11
33
CN03
F01
250VAC T6. 3A
CR11
CR12
CR13
RY07
RY05
RY06
SG01
CN06
TNR
R74
TNR
R73
MAIN P.C. BOARD (MCC-890)
COMPRESSOR FAN MOTOR
TERMINAL
BLOCK
TERMINAL
BLOCK
OUTDOOR
220-240 V ~ 50Hz
POWER SUPPLY
UNIT
INDOOR
UNIT
OUTDOOR
C
SR

FILE NO.SVM-05016
3-2. RAS-18NKHD-E4 / RAS-18UAH-E4
COLOR IDENTIFICATION
BRW : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
DRN : ORANGE
GRN : GREEN
GRN&YEL : GREEN & YELLOW
Louver
motor
BLK P04
BLK
WHI
RED
CN30
CN31
CN23
Serial Signal
Circuit
MAIN P.C BOARD
(WP - 003)
Varistor
Varistor
F01
250V
6.3A
DSA
CN11 CN10 CN03 CN01
WP-003
Fan motor
Drive
Circuit
Power supply
circuit
CN25
CN07
Infrared rays receive
and Indication parts
CN33
CN34 Micro SW.
+ 12 VDC
+ 5 VDC
High-voltage
Power supply
Ion electrode
Air purifier
Electrode
Heat exchanger
sensor
(TC)
Thermo
sensor
(TA)
TEMP FUSE
AC Fan motor
YEL
GRY BRW
WHI
BLK RED
BLK
BLK
BLK
BLK
REDRED
BLK
BLK
BRW
BRW
BRW
BRW
REW
BLK
BLK/RED
BRW
BRW
RED
BRW
BLU
WHI BLU
BLU BLU
BLU
BLU BLU BLU
BLU
BLU
BLU
PNK
YEL
GRN
RED
BRW
DISCHARGE
PIPE
SENSOR (TD)
HEAT
EXCHANGER
SENSOR (TE)
CN08
CN07 BLU
BLU
BLK
BLK
11
2
33
11
2
33
3
12
i
LN3
12
i
FERRITE CORE
GRN&YEL
RED
RED
BLK
BLK
MAGNETIC
CONTACTOR
RA1
A2
52C
U
S
V
T
W
PNK
WHI
COMPRESSOR TERMINAL
BLK
S
R
CWHI BLK BLK
COIL FOR
4 WAY VALVE
RED
RED
RED
CAPACITOR CAPACITOR
BLK
BLK
WHI
RED CN01
CN05
GRY
1
3
5
7
9
1
3
5
7
9
GRN&YEL
CHASSIS
TRANSFORMER
BLK
BLK
RED
RED
11
33
11
33
2
CN11
BLU
YEL
1
3
1
3
1
13
CN02
BLU
BLU
11
33
CN03
F01
250VAC T6. 3A
CR11
CR12
CR13
RY07
RY05
RY06
SG01
CN06
TNR
R74
TNR
R73
MAIN P.C. BOARD (MCC-890)
POWER SUPPLY
220 −240 V ~ 50 Hz
INDOOR
TERMINAL
BLOCK
OUTDOOR
TERMINAL
BLOCK
INDOOR
UNIT
OUTDOOR
UNIT
COMPRESSOR FAN MOTOR
C
SR
−11 −

−12−
FILE NO.SVM-05016
3-3. RAS-24NKD-E4 / RAS-24UA-E4, RAS-24NKD-AR4 / RAS-24UA-AR4
3
12
INDOOR
TERMINAL
BLOCK INDOOR
UNIT
OUTDOOR
UNIT
COLOR IDENTIFICATION
BRW : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
DRN : ORANGE
GRN : GREEN
GRN&YEL : GREEN & YELLOW
Louver
motor
MAIN P.C BOARD
(WP - 003)
Varistor
Varistor
F01
DSA
250V
6.3A
Relay
CN30
CN31
BLK
WHI
RED
CN27
GRN&YEL
AC Fan motor
TEMP FUSE
Thermo
sensor
(TA)
Heat exchanger
sensor
(TC)
Air purifier
Electrode
Ion electrode
High-voltage
Power supply
Micro SW.
+ 12 VDV
+ 5 VDV
Power supply
circuit
Fan motor
Drive
circuit
Infrared reys receive
and Indication parts
CN07 CN13
CN25
CN34
CN33
WP-003
CN01CN03
CN10
CN11
P04
YEL
GRY
BRW
WHI
BLK RED
BLK
BLK
BLK
BLK
REDRED
BLK
BLK
BRW
BRW
BRW
BRW
REW
BLK
BLK/RED
BRW
BRW
RED
BRW
BLU
BLKRED
WHI BLU
BLU BLU
BLU
BLU BLU BLU
BLU
BLU
BLU
PNK
YEL
GRN
RED
BRW
i
LN3
12
i
GRN&YEL
RED
RED
RED
RED
BLK
BLK CHASSIS
GRY
POWER SUPPLY
220-240 V ~ 50 Hz
SPARK KILLER
MAGNETIC CONTACTOR
BLK BLK
RED
A2 A1
52C
1/L1 2/T1
3/L2 4/T2
5/L3 6/T3
COMPRESSOR
WHI
PNK BLK
C
S
R
CAPACITOR
CAPACITOR
WHI
RED
F AN MO T OR
B L K
C OMP R E S S OR T E R MINAL
R
S
C
OUTDOOR
TERMINAL
BLOCK
RAS-24NKDX4 / RAS-24UAX4

−13−
FILE NO. SVM-05016
3-4. RAS-24NKDX4-T / RAS-24UAX3-T1
COLOR IDENTIFICATION
BRW : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
DRN : ORANGE
GRN : GREEN
GRN&YEL : GREEN & YELLOW
Louver
motor
CN07
Infrared rays receive
and Indication parts
CN25
CN13
Power supply
circuit
Fan motor
Drive
circuit
WP-003
MAIN P.C. BOARD
(WP-003)
Relay
Varistor
F01
DSA
Varistor
P04
BLK
CN30
CN31
CN27
AC Fan motor
TEMP FUSE
Thermo
sensor
(TA)
Heat exchanger
sensor
(TC)
CN01
CN03CN10
CN11
Air purifier
electrode
High-voltage
Power supply
Ion electrode
Micro SW.
CN34
CN33
+ 12 VCD
+ 5 VCD
6.3A 250V
BLK
WHI
RED
GRN&YEL
YEL
GRY
BRW
WHI BLK RED
BLK
BLK
BLK
BLK
REDRED
BLK
BLK
BRW
BRW
BRW
BRW
REW
BLK
BLK/RED
BRW
BRW
RED
BRW
BLU
WHI BLU
BLU
BLU
BLU
BLU BLU BLU
BLU
BLU
BLU
PNK
YEL
GRN
RED
BRW
3
12
INDOOR
TERMINAL
BLOCK INDOOR
UNIT
OUTDOOR
UNIT
i
LN3
12
i
GRN&YEL
RED
RED
RED
RED
BLK
BLK CHASSIS
GRY
POWER SUPPLY
220 V ~ 50 Hz
SPARK KILLER
MAGNETIC CONTACTOR
BLK BLK
RED
A2 A1
52C
1/L1 2/T1
3/L2 4/T2
5/L3 6/T3
COMPRESSOR
WHI
PNK BLK
C
S
R
CAPACITOR
CAPACITOR
WHI
RED
F AN MO T OR
B L K
OUTDOOR
TERMINAL
BLOCK
R
S
C
COMPRESSOR TERMINAL

RAS-18NKD-AR4 /RAS-18UA-AR4
–14 −
FILE NO.SVM-05016
COLOR IDENTIFICATION
BRW : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
DRN : ORANGE
GRN : GREEN
GRN&YEL : GREEN & YELLOW
Louver
motor
CN07
Varistor
F01
Varistor
Relay MAIN P.C. BOARD
(WP- 003)
CN30
CN31
CN27
AC Fan motor
TEMP FUSE
Thermo
sensor
(TA)
Heat exchanger
sensor
(TC)
CN11 CN10 CN03 CN01
WP-003
Fan motor
Drive
circuit
Power supply
circuit
+ 12 VDC
+ 5 VDC
Air purifier
electrode
High-voltage
Power supply
Ion electrode
CN33
CN34 Micro SW.
CN13
CN25
Infrared rays receive
and Indication parts
P04BLK
DSA
6.3A 250V
BLK
WHI
RED
GRN&YEL
YEL
GRY BRW
WHI BLK RED
BLK
BLK
BLK
BLK
REDRED
RED
BLK
BLK
BLK
BRW
BRW
BRW
BRW
REW
BLK
BLK/RED
BRW
BRW
RED
BRW
BLU
WHI BLU
BLU
BLU
BLU
BLU BLU BLU
BLU
BLU
BLU
PNK
YEL
GRN
RED
BRW
3
12
i
LN3
12
i
GRN&YEL
RED
RED
GRY
RED
BLK
BLK
BLK
BLK
GRN&YEL
CHASSIS
POWER SUPPLY
220 −240 V ~ 50 Hz
MAGNETIC
CONTACTOR
A1
A2
UVW
RST
SPARK KILLER
FAN MOTOR
WHI BLK
RED
RED
CAPACITOR
WHI BLK
PNK
S
R
C
CAPACITOR
COMPRESSOR
RED
INDOOR
TERMINAL
BLOCK
OUTDOOR
TERMINAL
BLOCK
INDOOR
UNIT
OUTDOOR
UNIT
COMPRESSOR TERMINAL
(or A)
(or B)
3.5 RAS-18NKD-E4 / RAS-18UA-E4, RAS-18NKDX4 / RAS-18UAX4
R
S
C

−15−
FILE NO. SVM-05016
3-6. RAS-18NKDX4-T2 / RAS-18UAX4-T2
COLOR IDENTIFICATION
BRW : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
DRN : ORANGE
GRN : GREEN
GRN&YEL : GREEN & YELLOW
Louver
motor
CN07
Infrared rays receive
and Indication parts
CN25
CN13
Power supply
circuit
+ 12 VDC
+ 5 VDC
Fan motor
Drive
circuit
WP-003
CN34 Micro SW
CN33
High-voltage
Power supply
Ion electrode
Air purifier
electrode
Heat exchanger
sensor
(TC)
Thermo
sensor
(TA)
CN01
CN03
CN10
AC Fan motor
TEMP FUSE
CN27
CN31
CN30
Relay
MAIN P.C. BOARD
(WP-003)
Varistor
F01
Varistor
P04BLK
DSA
6.3A 250V
BLK
WHI
RED
GRN&YEL CN11
YEL
GRY
BRW
WHI
BLK RED
BLK
BLK
BLK
BLK
REDRED
BLK
BLK
BRW
BRW
BRW
BRW
REW
BLK
BLK/RED
BRW
BRW
RED
BRW
BLU
WHI BLU
BLU BLU
BLU
BLU BLU BLU
BLU
BLU
BLU
PNK
YEL
GRN
RED
BRW
INDOOR
TERMINAL
BLOCK INDOOR
UNIT
i
LN
i
GRN&YEL
RED
RED
RED
RED
BLK
BLK CHASSIS
GRY
POWER SUPPLY
220 V ~ 50 Hz
SPARK KILLER
MAGNETIC CONTACTOR
BLK BLK
RED
A1 A2
52C
R U
SV
TW
COMPRESSOR
WHI
PNK BLK
C
S
R
CAPACITOR
CAPACITOR
WHI
RED
FAN MOTOR
BLK
COMPRESSOR TERMINAL
OUTDOOR
TERMINAL
BLOCK
OUTDOOR
UNIT
3
12
3
12
R
S
C

– 16–
FILE NO. SVM-05016
4. SPECIFICATION OF ELECTRICAL PARTS
4-2. Outdoor Unit (RAS-24UAH-E4)
No. Parts name Type Specifications
1Fan motor (for indoor) AFS-220-31A AC 200 − 240V, 31W
2 Thermo sensor (TA-sensor) ——— 10 kΩat 25°C
3Micro Power Module (M01) µRM1260V DC 390 V, Secondary DC 12 V
4 Microcontroller TMP87CM40AN
5 Heat exchanger sensor ——— 10 kΩat 25°C
(TC-sensor)
6Line filter (L01) LC*SS11V-06270 27mH, 600mA
7 Diode (DB01) D3SBA60 4 A, 600 V
8Capacitor (C63)KMH400VSSN47M22S 4.7µF, 400 V
9Fuse (F01) BET6.3A T6.3 A, 250 V
10Varistor (R21, R22) 15G561K 560 V
11 Resistor (R319) RF-2TK5R6 5.6Ω, 2 W
12 Louver motor MP35EA12 Output (Rated) 2 W, 10 poles, 1 phase,
DC 12 V
4-1. Indoor Unit (RAS-24NKHD-E4, RAS-18NKHD-E4)
No. Parts name Type Specifications
Output (Rated) 2200 W, 2 poles, 1 phase, 220 – 240 V, 50 Hz
1Compressor 2JS386D5BB02 Winding resistance (Ω)C-R C-S
(at 20°C) 0.886 1.979
Output (Rated) 65 W, 6 poles, 1 phase, 220 – 240 V, 50 Hz
2 Fan motor (for outdoor) KFG6-71SB5P-T1 Winding resistance (Ω) Red-Black White-Black
(at 20°C) 64.4 127.4
3Running capacitor 451355L AC 450 V, 3.5µF
(for fan motor)
4Running capacitor BUM44X6005C AC 440V, 60µF
(for compressor)
5Solenoid coil VHV (STF) AC 220 – 240 V
(for 4-way valve)
6 Thermo sensor TE / TD 10 kΩat 25°C / 50 kΩat 25°C
7Magnetic contactor A35 220 −240 V, 50 Hz
8Transformer TT-05 220 – 240 V
9 Microcontroller TMP47C840N
10 Varistor (R73, R74, R86) 15G471K 470 V
11 Fuse (F01) MT3 T6.3 A, 250 V

– 17–
FILE NO. SVM-05016
4-3. Outdoor Unit (RAS-18UAH-E4)
4-4. Indoor Unit (RAS-24NKD-E4, RAS-24NKDX4, RAS-24NKD-AR4, RAS-24NKDX4-T,
RAS-18NKD-E4, RAS-18NKDX4, RAS-18NKD-AR4, RAS-18NKDX4-T2)
No. Parts name Type Specifications
1Fan motor (for indoor) AFS-220-31A AC 200 − 240V, 31W
2 Thermo sensor (TA-sensor) ——— 10 kΩat 25°C
3Micro Power Module (M01) µRM1260V DC 390 V, Secondary DC 12 V
4 Microcontroller TMP87CM40AN
5 Heat exchanger sensor ——— 10 kΩat 25°C
(TC-sensor)
6Line filter (L01) LC*SS11V-06270 27mH, 600mA
7 Diode (DB01) D3SBA60 4 A, 600 V
8Capacitor (C63)KMH400VSSN47M22S 4.7µF, 400 V
9Fuse (F01) BET6.3A T6.3 A, 250 V
10Varistor (R21, R22) 15G561K 560 V
11 Resistor (R319) RF-2TK5R6 5.6Ω, 2 W
12 Louver motor MP35EA12 Output (Rated) 2 W, 10 poles, 1 phase,
DC 12 V
13Relay : (RY04) G5NB-1A Coil DC 12V, 16.7mA, Contact AC 250V, 1A
No. Parts name Type Specifications
Output (Rated) 1500 W, 2 poles, 1 phase, 220 – 240 V, 50 Hz
1Compressor 2JS350D5DA02 Winding resistance (Ω)C-R C-S
(at 20°C) 0.981 2.845
Output (Rated) 65 W, 6 poles, 1 phase, 220 – 240 V, 50 Hz
2Fan motor (for outdoor) KFG6-71SB5P-T3 Winding resistance (Ω)Red-BlackWhite-Black
(at 20°C) 64.4 127.4
3Running capacitor 451205L AC 450 V, 2µF
(for fan motor)
4Running capacitor BUM44X4505B AC 440 V, 45µF
(for compressor)
5Solenoid coil VHV (STF) AC 220 – 240 V
(for 4-way valve)
6 Thermo sensor TE / TD 10 kΩat 25°C / 50 kΩat 25°C
7Magnetic contactor CLK-26J 220 −240 V, 50 Hz
8 Transformer TT-05 220 – 240 V
9 Microcontroller TMP47C840N
10 Varistor (R73, R74, R86) 15G471K 470 V
11 Fuse (F01) MT3 T6.3 A, 250 V

FILE NO. SVM-05016
4-5. Outdoor Unit (RAS-24UA-E4, RAS-24UAX4, RAS-24UAX3-T1
4-6. Outdoor Unit (RAS-24UA-AR4)

−18 −
No. Parts name Type Specifications
Output (Rated) 2200 W, 2 poles, 1 phase, 220 −240V, 50 Hz
1Compressor PH400X3CS-4KT1 Winding resistance (Ω)C-R C-S
(at 20 °C)
Output (Rated) 65 W, 6 poles, 1 phase, 220 −240V, 50 Hz
Winding resistance (Ω)Red-BlackWhite-Black
2 Fan motor (for outdoor)
(at 20°C)64.4 127.4
KFG6-71SB5P-T
AC 440 V, 45µF
1.13 2.10
3Running capacitor 451355LAC 450 V, 3.5µF
(for fan motor)
BUM44X4505B
4
5Magnetic contactor A35 220 −240 V, 50 Hz
Running capacitor
(for compressor)
SK42CMP60U1-S
AC 450 V, 3.5µF
No. Parts name Type Specifications
Output (Rated) 2200 W, 2 poles, 1 phase, 220 −240V, 50 Hz
1Compressor PH400X3CS-4KTS1 Winding resistance (Ω)C-R C-S
(at 20°C)1.01 2.32
Output (Rated) 65 W, 6 poles, 1 phase, 220 −240V, 50 Hz
2Fan motor (for outdoor) MMF-230-65I Winding resistance (Ω)Red-BlackWhite-Black
(at 20°C)
71.2 139.0
3Running capacitor 451305L
(for fan motor)
4Running capacitor AC 420 V, 60µF
(for compressor)
 
5Magnetic contactor
A35 220 −240V, 50 Hz

– 19 –
FILE NO. SVM-05016
4-8.Outdoor Unit (RAS-18UA-AR4)
No. Parts name Type Specifications
Output (Rated) 1500 W, 2 poles, 1 phase, 220 – 240 V, 50 Hz
1Compressor PH340X3C-4KT1 Winding resistance (Ω)C-R C-S
(at 20°C) 1.46 2.47
Output (Rated) 42 W, 6 poles, 1 phase, 220 – 240 V, 50 Hz
2Fan motor (for outdoor) WLF-240-42A-1 Winding resistance (Ω)Red-BlackWhite-Black
(at 20°C) 188 289
3Running capacitor 451155L AC 450 V, 1.5µF
(for fan motor)
4Running capacitor BUM44X4505B AC 440 V, 45µF
(for compressor)
5 Magnetic contactor CLK-26J 220 – 240 V, 50 Hz
No. Parts name Type Specifications
Output (Rated) 1500 W, 2 poles, 1 phase, 220 – 240 V, 50 Hz
1Compressor PH340X3C-4KTS1 Winding resistance (Ω)C-R C-S
(at 20°C) 1.23 2.58
Output (Rated) 65 W, 6 poles, 1 phase, 220 – 240 V, 50 Hz
2Fan motor (for outdoor) WLF-240-42B Winding resistance (Ω)Red-BlackWhite-Black
(at 20°C) 197 255
3Running capacitor 451205LQAC 450 V, 2µF
(for fan motor)
4Running capacitor SK42CMP45U1-S AC 420 V, 45µF
(for compressor)
5Magnetic contactor CLK-26J220 – 240 V, 50 Hz
4-7.Outdoor Unit (RAS-18UAX4, RAS-18UA-E4)