Toshiba RAS-18UFHP-ES User manual

SERVICE MANUAL
AIR-CONDITIONER
UNDER CEILING / CONSOLE TYPE
RAS-18UFHP-ES / RAS-18UAH-ES
RAS-18UFP-ES / RAS-18UA-ES
RAS-24UFHP-ES / RAS-24UAH-ES
RAS-24UFP-ES / RAS-24UA-ES
FILE NO. SVM-02009
24 Class
Apr., 2002
18 Class

– 1 –
FILE NO. SVM-02009
CONTENTS
1. SPECIFICATIONS
2. CONSTRUCTIONVIEWS
2-1 Indoor Unit
2-2 Outdoor Unit (RAS-18UAH-ES, RAS-18UA-ES)
2-3 Outdoor Unit (RAS-24UAH-ES, RAS-24UA-ES)
3. WIRING DIAGRAM
3-1 RAS-18UFHP-ES / RAS-18UAH-ES
3-2 RAS-18UFP-ES / RAS-18UA-ES
3-3 RAS-24UFHP-ES / RAS-24UAH-ES
3-4 RAS-24UFP-ES / RAS-24UA-ES
4. SPECIFICATION OF ELECTRICAL PARTS
4-1 Indoor Unit
4-2 Outdoor Unit (RAS-18UAH-ES)
4-3 Outdoor Unit (RAS-18UA-ES)
4-4 Outdoor Unit (RAS-24UAH-ES)
4-5 Outdoor Unit (RAS-24UA-ES)
5. REFRIGERATION CYCLE DIAGRAM
5-1 RAS-18UFHP-ES / RAS-18UAH-ES
5-2 RAS-18UFP-ES / RAS-18UA-ES
5-3 RAS-24UFHP-ES / RAS-24UAH-ES
5-4 RAS-24UFP-ES / RAS-24UA-ES
6. CONTROL BLOCK DIAGRAM
6-1 RAS-18UFHP-ES, RAS-24UFHP-ES
6-2 RAS-18UFP-ES, RAS-24UFP-ES
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 How to Use Drain Pump Kit of Option
8-8 Others

– 2 –
FILE NO. SVM-02009
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 Parts
9-6 Troubleshooting for Indoor Unit
9-7 Troubleshooting for Wiring (Interconnect Cable and Serial Signal Wire)
9-8 Troubleshooting for P.C.Board
9-9 Troubleshooting for Remote Control
10. PARTS REPLACEMENT
10-1 Indoor Unit
10-2 Outdoor Unit (RAS-18UAH-ES, RAS-18UA-ES)
10-3 Outdoor Unit (RAS-24UAH-ES, RAS-24UA-ES)
11. EXPLODED VIEWS AND PARTS LIST
11-1 Indoor Unit (E-Parts Assy)
11-2 Indoor Unit
11-3 Outdoor Unit (RAS-18UAH-ES)
11-4 Outdoor Unit (RAS-18UA-ES)
11-5 Outdoor Unit (RAS-24UAH-ES)
11-6 Outdoor Unit (RAS-24UA-ES)
•This air conditioner is charged with HFC (R-410A)
that does not deplete the Ozone layer.
•This air conditioner requires special service tools
for the refrigerant R-410A.

– 3 –
FILE NO. SVM-02009
1. SPECIFICATIONS
RAS-18UFHP-ES RAS-18UFP-ES RAS-24UFHP-ES RAS-24UFP-ES
RAS-18UAH-ES RAS-18UA-ES RAS-24UAH-ES RAS-24UA-ES
Cooling Heating Cooling Cooling Heating Cooling
Capacity 220V 240V 220V 240V 220V 240V 220V 240V 220V 240V 220V 240V
kW 5.00 5.10 5.70 5.75 5.15 5.25 6.20 6.30 7.00 7.10 6.40 6.45
Phase 1∅
Power source V 220 – 240
Hz 50
Power consumption W 1960 2010 1830 1880 1875 1925 2515 2570 2430 2530 2540 2615
Power factor % 98 96 98 96 97 93 96 92 96 91 94 90
Running current Indoor A 0.4 0.45
Outdoor A 8.60 8.30 7.70 7.60 8.30 8.15 11.35 11.20 11.10 11.15 11.85 11.70
Starting current A 47 54
Moisture removal lit/h 2.0 2.5 2.7
Noise Indoor (H/M/L) db 43/39/36 46/42/37
Outdoor db 51 52 52 53 51 52 56 57 57 58 56 57
Refrigerant Name of refrigerant R-410A
Rated amount kg 1.3 1.2 1.6
Refrigerant control Capillary tube
Gas side size mm ∅12.70
Connection type Flare connection
Liquid side size mm ∅6.35
Interconnection Connection type Flare connection
pipe Maximum length m15*1
(One way) 20*225*2
Maximum height m8 10
difference
INDOOR UNIT RAS-18UFHP-ES RAS-18UFP-ES RAS-24UFHP-ES RAS-24UFP-ES
Width mm 1093
Dimensions Height mm 633
Depth mm 208
Net weight kg 23
Evaporator type Finned tube
Indoor fan type Multi blade fan
High fan m3/h 800 830 800 900 930 900
Air volume Medium fan m3/h 680 700 680 750 760 750
Low fan m3/h 580 650 580 550 660 650
Fan motor output W 50
Air filter Washable -filter
OUTDOOR UNIT RAS-18UAH-ES RAS-18UA-ES RAS-24UAH-ES RAS-24UA-ES
Width mm 830 880
Dimensions Height mm 538 690
Depth mm 300 310
Net weight kg 51 50 67 64
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 2105 2310 2150 2310 1830 2010 3380 3560 3380 3560 3380 3560
Fan motor output W 42 65
Compressor Model PA225X3F-4L PA290X3F-4MS
Output W 1500 2200
Safety device IOL, Td Sensor IOL, Case Thermo IOL, Td Sensor IOL, Case Thermo
Louver type Automatic louver
Usable outdoor temperature range°C 15 ~ 43 –10 ~ 24 15 ~ 43 15 ~ 43 -10 ~ 24 15 ~ 43
MODEL
ITEM

– 4 –
FILE NO. SVM-02009
Note : 1
• Capacity is based on the following temperature conditions.
Note : 2
• Charge refrigerant according to the table below.
Refrigerant RAS-18UFHP-ES / RAS-18UAH-ES RAS-24UFHP-ES / RAS-24UAH-ES
RAS-18UFP-ES / RAS-18UA-ES RAS-24UFP-ES / RAS-24UA-ES
*1 No need to charge 15m or less 15m or less
refrigerant
*2 Need to charge Over 15m up to 20m (20g/m) Over 15m up to 25m (20g/m)
refrigerant
Temperature Condition JIS C9612-1994
Cooling Heating
Indoor unit inlet air temperature (DB) 27°C 20°C
(WB) 19°C 12°C
Outdoor unit inlet air temperature (DB) 35°C 7°C
(WB) 24°C 6°C

– 5 –
FILE NO. SVM-02009
2. CONSTRUCTIONVIEWS
2-1. Indoor Unit
Front panel
Knock out system
For stud bolt
(∅8 - ∅10)
For stud bolt (∅6)
Grille air inlet
Back Body
Installation plate
Mount plate
M10 Suspention bolt
Wireless remote control
Knock out system
200 Min 1093
1015
742
450
20 20
330165
∅74
70 Min 633
460
57 18
160
633
208
1093
UNDER CEILING & CONSOLE INSTALLATION

–6 –
FILE NO. SVM-02009
2-2. Outdoor Unit (RAS-18UAH-ES, RAS-18UA-ES)
ADetail Drawing
600
325
325
52
R10
∅11x14 hole
∅6 hole
A120
8-∅6 holes
(For fixing outdoor unit)
6-∅11x14 holes
(For ∅8 - ∅10 anchor bolt)
∅25 Drain oulet
Fan guard
Handle
538
300 90 600
830 160
91 54
90 50
Installation dimension
100 or more 600 or more
600
or more
100 or more
325
Air inlet
Air
inlet
4x∅11x14
for ∅8-∅10
anchor bolt
Service Port
Electric
Parts cover
Liquid side
(Flare ∅6.35)
Gas side
(Flare ∅12.70)
344
∅420

–7 –
FILE NO. SVM-02009
2-3. Outdoor Unit (RAS-24UAH-ES, RAS-24UA-ES)
120
64
340
340
600
27
50
690
880 74
140
88
31023
340 (pitch) 1212
364
ADetail Drawing
∅25 Drain outlet
∅12x18 hole
5268
4-∅12x18 holes
(for ∅8 - ∅10 anchor bolt)
Handle
Handle
Mounting dimension of anchor bolt
600
100 or more 600 or more
600
or more
100 or more
Air outlet 4-∅12x18
for ∅8 - ∅10
anchor bolt Service Port
Electric
Parts cover
Liquid side
(Flare ∅6.35)
Gas side
(Flare ∅12.70)
A
600

FILE NO. SVM-02009
– 8 –
3. WIRING DIAGRAM
3-1. RAS-18UFHP-ES / RAS-18UAH-ES
BLK
P04
SG01 R09 R507 IC04
CN07 CN13
BLU BLU BLU BLU BLU BLU BLU BLU BLU WHI
LOUVER
MOTOR
C15
R405
C501
RY401
L01
MAIN PCB
RY501 CR502 DC12V
DC5V
CR501 IC03
R506
CN10 BLK
BLK
BLK
CN03
THERMO
SENSOR
(TA)
C01
R01 DB01
C02
SWITCH
PCB
MCC-865B
POWER SUPPLY CIRCUIT
R22
F01
T6.3A
BLK CN30
CN31
CN23
FOR FLOAT SWITCH
(OPTION)
GRN&YEL
FOR DRAIN PUMP
(OPTION)
BRW
GRY
BLK
RED RED
WHI WHI FAN
MOTOR
PUR
BLU
GRY
YEL
When you use float
switch you should
cut J401
CN402 CN401 CN11
J401
WHI
RED
FUSE
250VAC
R21
MCC-865A
CR401
2111232 3 123
654
654321 321123 123456 456789 78910
10
CN25
ORN
RED
PNK
YEL
BRW
BLU
INFRARED RAYS RECEIVE
AND INDICATION PARTS
123
123456 456789 78910
10
5 3
5 3 1 11 1
1 1
2 2
CN100WHI
GRY
GRY
CN101
11 22 33 1
2
3
3 3
6 6
3 3
2 2
1 1
1 1
2
3 3
1 2 3
L N 1 2 3
BLK
BLK
CN01
HEAT
EXCHANGER
SENSOR
(TC)
1 1
2 2
TRANSFORMER
DISCHARGE
PIPE
SENSOR (TD)
HEAT
EXCHANGER
SENSOR (TE)
MAIN P.C. BOARD (MCC-1275)
COMPRESSOR FAN MOTOR
INDOOR
TERMINAL
BLOCK INDOOR
UNIT
OUTDOOR
TERMINAL
BLOCK
OUTDOOR
UNIT
POWER
TERMINAL
BLOCK
POWER SUPPLY
220-240V~, 50 Hz
CN06
CN08
CN07
CN05
TNR
R74
TNR
R73
F01
T5A 250VAC
RY07
RY05
CN01
CN04
CN11
CR11
CR12 TNR R96
IC07
CN03
BLK
RED
WHI
RED
BLK
PNK
WHI
RED
REDBLK
BLK
RED
GRN&YEL GRN&YEL
CHASSIS
BLK
CN02
BLK
BLK
BLK
BLK
BLK
BLK
RED
RED
BLK
BLK
WHI
RED
GRY
BLU
YEL
BLK
BLK
COIL FOR
4 WAY VALVE
FERRITE CORE
RELAY
CAPACITOR CAPACITOR
1
3
11
33
11
2
33
1
3
5
7
9
1
3
5
7
9
1
3
1
3
1
3
1
3
3
1
1
11 13 15 A
B
12 14 16
1
3
5
11
2
33
S
R
C
COLOR IDENTIFICATION
BRW : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
GRN&YEL : GREEN&
YELLOW
GRN : GREEN
PUR : PURPLE

FILE NO. SVM-02009
–9 –
3-2. RAS-18UFP-ES / RAS-18UA-ES
BLK
P04
SG01 R09 R507 IC04
CN07 CN13
LOUVER
MOTOR
C15
R405
C501
RY401
L01
MAIN PCB
RY501 CR502 DC12V
DC5V
CR501 IC03
R506
CN10 BLK
BLK
BLK
CN03
THERMO
SENSOR
(TA)
C01
R01 DB01
C02
SWITCH
PCB
MCC-865B
POWER SUPPLY CIRCUIT
R22
F01
T6.3A
BLK CN30
CN27
CN31
FOR FLOAT SWITCH
(OPTION)
GRN&YEL
FOR DRAIN PUMP
(OPTION)
BRW
GRY
BLK
RED RED
WHI WHI FAN
MOTOR
PUR
BLU
GRY
YEL
CN402 CN401 CN11
WHI
RED
FUSE
250VAC
R21
CR02
RY04
MCC-865A
CR401
21 11232
11
33
3123
654
654321 321123 123456 456789 78910
10
CN25
INFRARED RAYS RECEIVE
AND INDICATION PARTS
123
123456 456789 78910
10
5 3
5 3 1 11 1
1 1
2 2
CN100WHI
GRY
GRY
CN101
11 22 33 1
2
3
3 3
6 6
3 3
2 2
1 1
BLK
BLK
CN01
HEAT
EXCHANGER
SENSOR
(TC)
1 1
2 2
COLOR IDENTIFICATION
BRW : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
GRN&YEL : GREEN&
YELLOW
GRN : GREEN
PUR : PURPLE
J401
ORN
RED
PNK
YEL
BRW
BLU
BLU BLU BLU BLU BLU BLU BLU BLU BLU WHI
When you use float
switch you should
cut J401
CAPACITOR CAPACITOR
THERMOSTAT
3
12
3
12
LN
POWER SUPPLY
220 - 240V~, 50Hz
SPARK KILLER
RELAY
COMPRESSOR FAN MOTOR
INDOOR
UNIT
POWER
TERMINAL
BLOCK
OUTDOOR
UNIT
WHIWHI
BLK
BLK
BLK
BLK
BLK
BLK
BLK
PNK
RED CHASSIS
GRN&YEL
GRN&YEL
RED
A
ORN
ORN
B
RED
RED
RED
RED
11
12
13
14
15
16
INDOOR
TERMINAL
BLOCK
OUTDOOR
TERMINAL
BLOCK
S
R
C

FILE NO. SVM-02009
–10 –
3-3. RAS-24UFHP-ES / RAS-24UAH-ES
BLK
P04
SG01 R09 R507 IC04
CN07 CN13
BLU BLU BLU BLU BLU BLU BLU BLU BLU WHI
LOUVER
MOTOR
C15
R405
C501
RY401
L01
MAIN PCB
RY501 CR502 DC12V
DC5V
CR501 IC03
R506
CN10 BLK
BLK
BLK
CN03
THERMO
SENSOR
(TA)
C01
R01 DB01
C02
SWITCH
PCB
MCC-865B
POWER SUPPLY CIRCUIT
R22
F01
T6.3A
BLK CN30
CN31
CN23
FOR FLOAT SWITCH
(OPTION)
GRN&YEL
FOR DRAIN PUMP
(OPTION)
BRW
GRY
BLK
RED RED
WHI WHI FAN
MOTOR
PUR
BLU
GRY
YEL
When you use float
switch you should
cut J401
CN402 CN401 CN11
J401
WHI
RED
FUSE
250VAC
R21
MCC-865A
CR401
2111232 3 123
654
654321 321123 123456 456789 78910
10
CN25
ORN
RED
PNK
YEL
BRW
BLU
INFRARED RAYS RECEIVE
AND INDICATION PARTS
123
123456 456789 78910
10
5 3
5 3 1 11 1
1 1
2 2
CN100WHI
GRY
GRY
CN101
11 22 33 1
2
3
3 3
6 6
3 3
2 2
1 1
1 1
2
3 3
123
L N 123
BLK
BLK
CN01
HEAT
EXCHANGER
SENSOR
(TC)
1 1
2 2
TRANSFORMER
DISCHARGE
PIPE
SENSOR (TD)
HEAT
EXCHANGER
SENSOR (TE)
MAIN P.C. BOARD (MCC-1275)
COMPRESSOR FAN MOTOR
INDOOR
TERMINAL
BLOCK INDOOR
UNIT
OUTDOOR
TERMINAL
BLOCK
OUTDOOR
UNIT
POWER
TERMINAL
BLOCK
POWER SUPPLY
220-240V~, 50 Hz
CN06
CN08
CN07
CN05
TNR
R74
TNR
R73
F01
T5A 250VAC
RY07
RY05
CN01
CN04
CN11
CR11
CR12 TNR R96
IC07
CN03
BLK
RED
WHI
RED
BLK
PNK
WHI
RED
REDBLK
BLK
RED
GRN&YEL GRN&YEL
CHASSIS
BLK
CN02
BLK
BLK
BLK
BLK
BLK
BLK
RED
RED
BLK
BLK
WHI
RED
GRY
BLU
YEL
BLK
BLK
COIL FOR
4 WAY VALVE
FERRITE CORE
MAGNETIC RELAY
CAPACITOR CAPACITOR
1
3
11
33
11
2
33
1
3
5
7
9
1
3
5
7
9
1
3
1
3
1
3
1
3
3
1
1
TSRA1
WVU
1
3
5
11
2
33
S
R
C
A2
52C
COLOR IDENTIFICATION
BRW : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
GRN&YEL : GREEN&
YELLOW
GRN : GREEN
PUR : PURPLE

FILE NO. SVM-02009
–11 –
3-4. RAS-24UFP-ES / RAS-24UA-ES
BLK
P04
SG01 R09 R507 IC04
CN07 CN13
LOUVER
MOTOR
C15
R405
C501
RY401
L01
MAIN PCB
RY501 CR502 DC12V
DC5V
CR501 IC03
R506
CN10 BLK
BLK
BLK
CN03
THERMO
SENSOR
(TA)
C01
R01 DB01
C02
SWITCH
PCB
MCC-865B
POWER SUPPLY CIRCUIT
R22
F01
T6.3A
BLK CN30
CN27
CN31
FOR FLOAT SWITCH
(OPTION)
GRN&YEL
FOR DRAIN PUMP
(OPTION)
BRW
GRY
BLK
RED RED
WHI WHI FAN
MOTOR
PUR
BLU
GRY
YEL
CN402 CN401 CN11
WHI
RED
FUSE
250VAC
R21
CR02
RY04
MCC-865A
CR401
21 11232
11
33
3123
654
654321 321123 123456 456789 78910
10
CN25
INFRARED RAYS RECEIVE
AND INDICATION PARTS
123
123456 456789 78910
10
5 3
5 3 1 11 1
1 1
2 2
CN100WHI
GRY
GRY
CN101
11 22 33 1
2
3
3 3
6 6
3 3
2 2
1 1
BLK
BLK
CN01
HEAT
EXCHANGER
SENSOR
(TC)
1 1
2 2
CAPACITOR
CAPACITOR
3
12
3
12
LN
POWER SUPPLY
220 - 240V~, 50Hz
220V ~, 50Hz (For RAS-18UAX-T2,
RAS-24UAX-T)
SPARK KILLER
MAGNETIC RELAY
FAN MOTOR
INDOOR
UNIT
POWER
TERMINAL
BLOCK
OUTDOOR
UNIT
BLK
BLK
BLK
BLK BLK
RED RED
CHASSIS
GRN&YEL
GRN&YEL FERRITE CORE
(For model RAS-24UA series)
COMPRESSOR
WHI
WHI
PNK BLK
C
RED
RED RED
RED
A1 A2
52C
INDOOR
TERMINAL
BLOCK
OUTDOOR
TERMINAL
BLOCK
S
R
RU
SV
T W
COLOR IDENTIFICATION
BRW : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
GRN&YEL : GREEN&
YELLOW
GRN : GREEN
PUR : PURPLE
J401
ORN
RED
PNK
YEL
BRW
BLU
BLU BLU BLU BLU BLU BLU BLU BLU BLU WHI
When you use float
switch you should
cut J401
THERMOSTAT
ORN
ORN

FILE NO. SVM-02009
– 12 –
4. SPECIFICATION OF ELECTRICAL PARTS
4-1. Indoor Unit
No. Parts name Type Specifications
1 Fan motor (for indoor) AFP-220-50-4A Output (Rated) 50W, 220-240V
2 Thermo sensor (TA-sensor) ——— 10kΩat 25°C
3 DC-DC transformer (T01) SWT-47 DC 390V, Secondary DC 12V, 7V
4 Microcomputer TMP87CM40AN
5Heat exchanger sensor ——— 10kΩat 25°C
(TC-sensor)
6 Line filter (L01) SS11V-R07190 19mH, AC0.7A
7 Diode (DB01) D3SBA60 4A, 600V
8 Capacitor (C02) KMH400VSSN47M22S 47µF, 400V
9 Fuse (F01) TSCR T6.3A, 250V
10 Varistor (R21, R22) 15G561K 560V
11 Resistor (R01) RF-2TK5R6 5.6Ω, 2W
12 Louver motor MP35EA12 Output (Rated) 2W,10poles, 1phase,
DC 12V
4-2. Outdoor Unit (RAS-18UAH-ES)
No. Parts name Type Specifications
Output (Rated) 1500W, 2poles, 1phase, 220 – 240V, 50Hz
1 Compressor PA225X3F-4L Winding resistance (Ω) Red-Black White-Black
(at 20°C) 1.35 2.68
Output (Rated) 65W, 6poles, 1phase, 220 – 240V, 50Hz
2 Fan motor (for outdoor) HF-240-42A1 Winding resistance (Ω) Red-Black White-Black
(at 20°C) 176.2 290.5
3Running capacitor SK45FMP02U2 AC 450V, 2µF
(for fan motor)
4Running capacitor SK42CMP45U1 AC 420V, 45µF
(for compressor)
5Solenoid coil VHV AC 220 – 240V
(for 4-way valve)
6 Thermo sensor TE / TD 10kΩat 25°C / 50kΩat 25°C
7 Relay VC20FA 220 – 240V, 50Hz, 1P1a
8 Transformer FT67 220 – 240V
9 Microcomputer TMP47C840N
10 Varistor (R73, 74, 86) 15G471K 470V
11 Fuse (F01) MT3 T5A, 250V

FILE NO. SVM-02009
– 13 –
No. Parts name Type Specifications
Output (Rated) 1500W, 2poles, 1phase, 220 – 240V, 50Hz
1 Compressor PA225X3F-4L Winding resistance (Ω) Red-Black White-Black
(at 20°C) 1.35 2.68
Output (Rated) 42W, 6poles, 1phase, 220 – 240V, 50Hz
2 Fan motor (for outdoor) HF-240-42A Winding resistance (Ω) Red-Black White-Black
(at 20°C) 176.2 290.5
3Running capacitor SK45FMP02U2 AC 450V, 2µF
(for fan motor)
4Running capacitor SK42CMP45U1 AC 420V, 45µF
(for compressor)
5 Relay VC20FA 220 – 240V, 50Hz, 1P1a
4-3. Outdoor Unit (RAS-18UA-ES)
4-4. Outdoor Unit (RAS-24UAH-ES)
No. Parts name Type Specifications
Output (Rated) 2200W, 2poles, 1 phase, 220 – 240V, 50Hz
1 Compressor PA290X3F-4MS Winding resistance (Ω) Red-Black White-Black
(at 20°C) 1.07 2.20
Output (Rated) 51W, 6poles, 1phase, 220 – 240V, 50Hz
2 Fan motor (for outdoor) KPG6-71SB5P-T1 Winding resistance (Ω) Red-Black White-Black
(at 20°C) 64.4 127.4
3Running capacitor SK45FMP3.5U2 AC 450V, 3.5µF
(for fan motor)
4Running capacitor SK42CMP45U1 AC 420V, 45µF
(for compressor)
5 Solenoid coil VHV AC 220 – 240V
(for 4-way valve)
6 Thermo sensor TE / TD 10kΩat 25°C / 50kΩat 25°C
7 Magnetic relay CLK-35J 220 – 240V, 50Hz
8 Transformer FT67 220 – 240V
9 Microcomputer TMP47C840N
10 Varistor (R73, 74, 86) 15G471K 470V
11 Fuse (F01) MT3 T5A, 250V

FILE NO. SVM-02009
– 14 –
No. Parts name Type Specifications
Output (Rated) 2200W, 2poles, 1phase, 220 – 240V, 50Hz
1 Compressor PA290X3F-4MS Winding resistance (Ω) Red-Black White-Black
(at 20°C) 1.07 2.20
Output (Rated) 51W, 6poles, 1phase, 220 – 240V, 50Hz
2 Fan motor (for outdoor) KPG6-71SB5P-T1 Winding resistance (Ω) Red-Black White-Black
(at 20°C) 64.4 127.4
3Running capacitor SK45FMP3.5U2 AC 450V, 3.5µF
(for fan motor)
4Running capacitor SK42CMP45U1 AC 420V, 45µF
(for compressor)
5 Magnetic relay CLK-35J 220 – 240V, 50Hz
4-5. Outdoor Unit (RAS-24UA-ES)

FILE NO. SVM-02009
– 15 –
5. REFRIGERATION CYCLE DIAGRAM
5-1. RAS-18UFHP-ES / RAS-18UAH-ES
Standard 2.7 45.0 High 20/– 7/6
Heating High temperature*1 3.0 ~ 3.8 49.0 ~ 58.0 Low 27/– 24/18
Low temperature 2.0 34.0 High 20/– –10/–10
Standard 0.9 10.0 High 27/19 35/24
Cooling High temperature 1.0 15.0 High 32/23 43/26
Low temperature 0.6 1.0 Low 21/15 21/15
Note :Measure the heat exchanger temperature at the center of U-bend.(By means of TC sensor.)
*1 : During heating overload, the high temperature limit control operation is included.
50Hz Standard
pressure P
(MPaG)
Surface temp. of heat
exchanger interchanging
pipe T (°C)
Fan speed
(indoor)
Ambient temp.
conditions DB/WB
(°C)
Indoor Outdoor
Evaporator
Indoor unit
Multi blade fan
Cooling Heating
Muffler
4-way valve
Heating Cooling Compressor
Condenser
Propeller fan
Outdoor unit
Capillary tube
∅1.0x1500S
Capillary tube
∅1.7x700S
PA225X3F-4L
Accumulator
Cooling
Heating
O.D.:6.35 mm
Packed valve
0.49m
(Connecting pipe)
∅6.35 mm
T
Refrigerant
R-410A 1.30 Kg
Mark ( ) means check points of Gas Leak
Packed valve
(∅12.70)
P
O.D.:12.70 mm
0.39m
(Connecting pipe)
∅12.70 mm
∅12.70 mm
0.39m
(Flexible pipe)
Cooling
Heating
(∅6.35)

FILE NO. SVM-02009
–16 –
5-2. RAS-18UFP-ES / RAS-18UA-ES
Note :Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor.)
Standard 0.9 10.0 High 27/19 35/24
Cooling High temperature 1.0 13.0 High 32/23 43/26
Low temperature 0.6 2.0 Low 21/15 21/15
50Hz Fan speed
(indoor)
Ambient temp.
conditions DB/WB
(°C)
Indoor Outdoor
Standard
pressure P
(MPaG)
Surface temp. of heat
exchanger interchanging
pipe T (°C)
Indoor unit
Multi blade fan
Compressor
Accumulator
Condenser
Propeller fan
Outdoor unit
PA225X3F-4L
O.D.:6.35 mm
Packed valve
(∅12.70) Packed valve
T
P
Refrigerant
R-410A 1.20 Kg
Evaporator
0.49m
(Connecting pipe)
∅6.35 mm
Mark ( ) means check points of Gas Leak
O.D.:12.70 mm
0.39m
(Connecting pipe)
∅12.70 mm
∅12.70 mm
0.39m
(Flexible pipe)
(∅6.35)
Muffler
Capillary tube
∅ 1.7x350 S

FILE NO. SVM-02009
–17 –
Standard 2.7 43.0 High 20/–7/6
Heating High temperature*1 3.1 ~ 4.0 52.0 ~ 59.0 Low 27/–24/18
Low temperature 2.7 36.0 High 20/––10/–10
Standard 0.9 11.0 High 27/19 35/24
Cooling High temperature 0.8 12.0 High 32/23 43/26
Low temperature 0.5 1.0 Low 21/15 21/15
5-3. RAS-24UFHP-ES / RAS-24UAH-ES
Note : Measure the heat exchanger temperature at the center of U-bend.(By means of TC sensor.)
*1 : During heating overload, the high temperature limit control operation is included.
50Hz Standard
pressure P
(MPaG)
Surface temp. of heat
exchanger interchanging
pipe T (°C)
Fan speed
(indoor)
Ambient temp.
conditions DB/WB
(°C)
Indoor Outdoor
Evaporator
Indoor unit
Multi blade fan
Cooling Heating
Muffler
4-way valve
Heating Cooling Compressor
Condenser
Propeller fan
Outdoor unit
Capillary tube
∅2.0x700S
PA290X3F-4MS
Cooling
Heating Mark ( ) means check points of Gas Leak
O.D.:6.35 mm
Packed valve
0.49m
(Connecting pipe)
∅6.35 mm
T
Refrigerant
R-410A 1.60 Kg
Packed valve
(∅12.70)
P
O.D.:12.70 mm
0.39m
(Connecting pipe)
∅12.70 mm
∅12.70 mm
0.39m
(Flexible pipe)
Cooling
Heating
(∅6.35)
Tank

FILE NO. SVM-02009
–18 –
5-4. RAS-24UFP-ES / RAS-24UA-ES
Note : Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor.)
Standard 0.9 11.0 High 27/19 35/24
Cooling High temperature 0.8 12.0 High 32/23 43/26
Low temperature 0.5 1.0 Low 21/15 21/15
50Hz Fan speed
(indoor)
Ambient temp.
conditions DB/WB
(°C)
Indoor Outdoor
Standard
pressure P
(MPaG)
Surface temp. of heat
exchanger interchanging
pipe T (°C)
Evaporator
Indoor unit
Multi blade fan
Compressor
Condenser
Tank
Propeller fan
Outdoor unit
Capillary tube
∅2.0x600S
PA290X3F-4MS
Cooling
O.D.:6.35 mm
Packed valve
(∅12.70 ) Packed valve (∅6.35)
0.49m
(Connecting pipe)
∅6.35 mm
T
P
Refrigerant
R-410A 1.60 Kg
Mark ( ) means check points of Gas Leak
O.D.:12.70 mm
Cooling
0.39m
(Connecting pipe)
∅12.70 mm
∅12.70 mm
0.39m
(Flexible pipe)

FILE NO. SVM-02009
– 19 –
6. CONTROL BLOCK DIAGRAM
6-1. RAS-18UFHP-ES, RAS-24UFHP-ES
REMOTE CONTROL
Remote Control
Operation (START/STOP)
Operation Mode Selection
AUTO, COOL, DRY, HEAT, FAN ONLY
Temperature Setting
Fan Speed Selection
ON TIMER Setting
OFF TIMER Setting
Louver Auto Swing
Louver Direction Setting
ECO
Hi power
Filter Reset
Infrared Rays
Heat Exchanger Sensor
Temperature Sensor
Infrared Rays Signal Receiver
Initiallizing Circuit
Clock Frequence
Oscillator Circuit
Power Supply
Circuit
Noise Filter Relay
RY401
Louver ON/OFF Signal
Serial Signal Communication
Hi POWER
Display
FILTER Sign
Display
PRE DEF.
Sign Display
TIMER
Display
Louver Driver
Functions
•Louver Control
•3-minute Delay at Restart for Compressor
•Motor Revolution Control
•Processing
(Temperature Processing)
•Timer
•Drain Pump ON/OFF
•Serial Signal Communication
Remote
Control
Infrared
Rays
36.7 kHz
8 MHzM.C.U.
Indoor Unit Control Panel
OPERATION
Display
Indoor Fan
Motor
Louver Motor
Float
Switch
Drain
Pump
From Outdoor Unit
Serial Signal
Transmitter/
Receiver