Toshiba RAS-18GFHP-ES2, RAS-24GFP-ES2, RAS-18GHA-ES2 SERVICE MANUAL
FILE NO. SVM-06021
AIR-CONDITIONER
UNDER CEILING / CONSOLE TYPE
RAS-18GFHP-ES2 / RAS-18GAH-ES2
RAS-18GFP-ES2 / RAS-18GA-ES2
RAS-24GFHP-ES2 / RAS-24GAH-ES2
RAS-24GFP-ES2 / RAS-24GA-ES2
24 Class18 Class
June, 2006
CONTENTS
1. SPECIFICATIONS
2. CONSTRUCTION VIEWS
2-1 Indoor Unit
2-2 Outdoor Unit (24 Class)
2-3 Outdoor Unit (18 Class)
3. WIRING DIAGRAM
3-1 RAS-18GFHP-ES2 / RAS-18GAH-ES2
3-2 RAS-24GFHP-ES2 / RAS-24GAH-ES2
3-3 RAS-18GFP-ES2 / RAS-18GA-ES2
3-4 RAS-24GFP-ES2 / RAS-24GA-ES2
4. SPECIFICATION OF ELECTRICAL PARTS
4-1 Indoor Unit (RAS-24GFHP-ES2, RAS-18GFHP-ES2)
4-2 Outdoor Unit (RAS-24GAH-ES2)
4-3 Outdoor Unit (RAS-18GAH-ES2)
4-4 Indoor Unit (RAS-24GFP-ES2, RAS-18GFP-ES2)
4-5 Outdoor Unit (RAS-24GA-ES2)
4-6 Outdoor Unit (RAS-18GA-ES2)
FILE NO. SVM-06021
5. REFRIGERATION CYCLE DIAGRAM
5-1 RAS-18GFHP-ES2 / RAS-18GAH-ES2
5-2 RAS-18GFP-ES2 / RAS-18GA-ES2
5-3 RAS-24GFHP-ES2 / RAS-24GAH-ES2
5-4 RAS-24GFP-ES2 / RAS-24GA-ES2
6. CONTROL BLOCK DIAGRAM
6-1 RAS-18GFHP-ES2, RAS-24GFHP-ES2
6-2 RAS-18GFP-ES2, RAS-24GFP-ES2
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
7-9 Self-Cleaning function
7-10 Quiet Mode
7-11 Comfort Sleep mode
– 1 –
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
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
FILE NO. SVM-06021
10. PARTS REPLACEMENT
10-1 Indoor Unit
10-2 Outdoor Unit (RAS-24GAH-ES2, RAS-24GA-ES2)
10-3 Outdoor Unit (RAS-18GAH-ES2, RAS-18GA-ES2)
11. EXPLODED VIEWS AND PARTS LIST
11-1 Indoor Unit (E-Parts Assy)
11-2 Indoor Unit
11-3 Outdoor Unit (RAS-24GAH-ES2)
11-4 Outdoor Unit (RAS-18GAH-ES2)
11-5 Outdoor Unit (RAS-24GA-ES2)
11-6 Outdoor Unit (RAS-18GA-ES2)
• 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.
– 2 –
1. SPECIFICATIONS
FILE NO. SVM-06021
MODEL
ITEM
Capacity 220V 240V 220V 240V 220V 240V 220V 240V 220V 240V 220V 240V
kW 5.00 5.10 5.70 5.75 5.30 5.35 6.20 6.30 7.0 7.10 6.80 6.85
Phase 1∅
Power source V 220 − 240
Hz 50
Power consumption W 1960 2010 1830 1880 1950 2040 2515 2570 2430 2530 2640 2790
Power factor % 99 96 97 90 98 92 91 88 85 83 95 91
Running current
Starting current A 36 54
Moisture removal lit/h 2.0 2.5 2.7
Noise
Refrigerant
Refrigerant control Capillary tube
Interconnection Connection type Flare connection
pipe Maximum length
INDOOR UNIT RAS-18GFHP-ES2 RAS-18GFP-ES2 RAS-24GFHP-ES2 RAS-24GFP-ES2
Dimensions Height mm 633
Net weight kg 23
Evaporator type Finned tube
Indoor fan type Multi blade fan
Air volume Medium fan m3/h 680 700 680 750 760 750
Fan motor output W 50
Air filter Washable -filter
OUTDOOR UNIT RAS-18GAH-ES2 RAS-18GA-ES2 RAS-24GAH-ES2 RAS-24GA-ES2
Dimensions Height mm 550 715
Net weight kg 44 39 52 52
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 2350 2450 2350 2450 2120 2200 2400 2550 2400 2550 2400 2550
Fan motor output W
Compressor
Safety device IOL, Td Sensor
Louver type Automatic louver
Usable outdoor temperature range°C 15 ~ 43 − 10 ~ 24 21 ~ 43 15 ~ 43 − 10 ~ 24 21 ~ 43
Note *1 Chargeless pipe.
*2 Maximum pipe.
Indoor A 0.4 0.45
Outdoor A 8.60 8.30 8.20 8.30 8.60 8.80 12.13 11.77 12.57 12.18 12.15 12.35
Indoor (H/M/L) db 43/41/39/37/36 46/44/42/39/37
Outdoor db 52 53 53 54 51 52 56 57 57 58 56 57
Name of refrigerant R-410A
Rated amount kg 1.15 1.26
Gas side size
Connection type Flare connection
Liquid side size
(One way) 20*
Maximum height
difference
Width mm 1093
Depth mm 208
High fan m3/h 800 800 800 900 930 900
Low fan m3/h 580 650 580 550 660 650
Width mm 780 780
Depth mm 290 290
Model
Output W 1500 2160
mm
mm
m
m8 10
RAS-18GFHP-ES2 RAS-18GFP-ES2 RAS-24GFHP-ES2 RAS-24GFP-ES2
RAS-18GAH-ES2 RAS-18GA-ES2 RAS-24GAH-ES2 RAS-24GA-ES2
Cooling Heating Cooling Cooling Heating Cooling
33
1.90
12.70
6.35
1
15*
2
780
550
290
42
PA225X2CS-4KU1 PA290X3CS-4MU1
42
IOL
IOL, Td Sensor
25*
42
2
54
1.70
IOL
– 3 –
Note : 1
• Capacity is based on the following temperature conditions.
FILE NO. SVM-06021
Condition
Temperature
Indoor unit inlet air temperature
Outdoor unit inlet air temperature
Note : 2
• Charge refrigerant according to the table below.
Refrigerant
*1 No need to charge
refrigerant
*2 Need to charge
refrigerant
RAS-18GFHP-ES2 / RAS-18GAH-ES2 RAS-24GFHP-ES2 / RAS-24GAH-ES2
RAS-18GFP-ES2 / RAS-18GA-ES2 RAS-24GFP-ES2 / RAS-24GA-ES2
15m or less 15m or less
Over 15m up to 20m (20g/m) Over 15m up to 25m (30g/m)
JIS B615-1
Cooling Heating
(DB) 27°C 20°C
(WB) 19°C 15°C
(DB) 35°C 7°C
(WB) 24°C 6°C
– 4 –
2-1. Indoor Unit
FILE NO. SVM-06021
2. CONSTRUCTION VIEWS
Front panel
1093
UNDER CEILING & CONSOLE INSTALLATION
208
633
Knock out system
Grille air inlet
Back Body
For stud bolt
(∅8 - ∅10)
For stud bolt (∅6)
200 Min
330165
∅74
1093
1015
742
450
20 20
– 5 –
Installation plate
Mount plate
M10 Suspention bolt
633
460
70 Min
Wireless remote control
Knock out system
160
57 18
2.2 Outdoor Unit (24 Class)
28
600
50
36
R
15
FILE NO. SVM-06021
A
124109
6 hole
321
307
Ø
R
5.5
A Detail Drawing (Back leg)
HANDLE
290
321
Ø
Ø
715
86
25 Drain outlet
FAN-GUARD
436
275
2Ø11x14 Hole
(For
90 600 90 69
Ø8-Ø
10 anchor bolt)
B
307
321
Hole
6
Ø
11x14 Hole
Ø
36
50
B Detail Drawing (Front leg)
321
342
R
15
HANDLE
COVER-PV
Z
100 or more
321
100 or more
Z View
600
Air inlet
Air out
let
00 or more
6
Installation dimension
600 or more
4x
54
129
84
11 Long holes(For
Ø
Service port
10 anchor bolt)
Ø8-Ø
Electrical part cover
Liquid side
(Flare Ø6.35)
Gas-side
(Flare Ø 12.7)
- 6 -
2.3 Outdoor Unit (18 Class)
28
600
50
36
321
307
A detail Drawing (Back leg)
R5.5
R
Ø
6 hole
15
86
321
Ø
FAN-GUARD
436
Ø
A
25 Drain outlet
109 124
2
-
Ø
11 x 14
(For 8 -
Ø
Ø
Hole
10 anchor bolt)
FILE NO. SVM-06021
307
321
Ø
6 hole
11x14 hole
Ø
B Detail Drawing (Front leg)
36
50
R
15
COVER-PV
Z
290
550
275
321
342
Electrical part cover
Liquid side
(Flare 6.35)
Ø
Gas side
(Flare 12.7)
Ø
5
4
Service port
Z View
9060090
69
129
84
100 or more
321
100 or more
600
Air intlel
Air outlel
600 or more
Installation dimension
- 7 -
600 or more
4x 11 Long holes(For 8- 10 anchor bolt)
Ø
Ø
Ø
3. WIRING DIAGRAM
3-1. RAS-18GFHP-ES2 / RAS-18GAH-ES2
FILE NO. SVM-06021
COLOR IDENTIFICA TION
BR W : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GR Y : GRA Y
PNK : PINK
ORN : ORANGE
GRN&YEL : GREEN&
GRN : GREEN
PUR : PURPLE
YELLOW
BLK
WHI
RED
GRN&YEL
CN30
CN31
BLK
CN23
P04
SG01
R22
FUSE
F01
250V AC
T6.3A
J401
2
1 1 1232 3
FOR FLOA T SWITCH
(OPTION)
When you use float
switch you should
cut J401
LOUVER
MOT OR
R09 R507
R21
CN402 CN401 CN1 1
IC04
C15
R Y401
R405
CR401
FOR DRAIN PUMP
(OPTION)
CN07
ORN
RED
PNK
YEL
BR W
BLU
L01
123
654
654
C501
321
321
MAIN PCB
MCC-865A
R Y501
5 3
5 311
BR W
GR Y
YEL
CN25
CN13
R01
C01
CR502
CR501
CN10 BLK
WHI
1 1
RED
3 3
BLK
6 6
3 3
2 2
1 1
INFRARED RA YS RECEIVE
AND INDICA TION P ARTS
123
456
BLU
DB01
BLU
DC12V
DC5V
IC03
WHI
RED
456
BLU
456
456
C02
PUR
GR Y
BLU
BLU
789
7891010
BLU
BLU
789
7891010
BLU
123
BLU
123
123
R506
BLU
POWER SUPPLY
WHI
CIRCUIT
CN100
CN03
1 1
2 2
CN01
1 1
2 2
WHI
11
GRY
22
GRY
33
BLK
BLK
BLK
BLK
FAN
MOTOR
CN101
THERMO
SENSOR
(TA)
HEAT
EXCHANGER
SENSOR
(TC)
1
2
3
SWITCH
PCB
MCC-865B
OUTDOOR
TERMINAL
BLOCK
C
S
R
COMPRESSOR TERMINAL
POWER SUPPLY
220-240 V~ 50 Hz
L
BLK
RED
BLK
RED
WHI
PNK
COMPRESSOR
INDOOR
TERMINAL
BLOCK
N
FERRITE CORE
RED
1
1
GRN&YEL
2
3
2
3
INDOOR
UNIT
OUTDOOR
UNIT
GRN&YEL
CHASSIS
MAGNETIC
CONTACTOR
R
S
T
A1
52C
BLK
A2
W
RED
WHI
RE
D
FAN MOTOR
U
V
CAPACITOR CAPACITOR
S
C
R
BLK
TRANSFORMER
COIL FOR
4 WAY VALVE
BLK
BLK
RED
RED
BLK
BLK
WHI
RED
GRY
BLU
YEL
BLU
BLU
1
3
1
3
1
3
5
7
9
131
11
33
MAIN P.C. BOARD (MCC-890)
1
2
CN06
3
1
CN05
3
1
3
5
CN01
7
9
CN11
3
SG01
F01
250VAC T6. 3A
CR11
TNR
R74
CN02
CR12
CR13
BLK
1
1
CN03
RY07
RY05
3
TNR
R73
RY06
CN07
CN08
DISCHARGE
PIPE
SENSOR (TD)
BLU
1
1
2
3
3
BLU
BLK
1
1
2
3
3
BLK
HEA
T
EXCHANGER
SENSOR (TE)
− 8 −
3-2. RAS-24GFHP-ES2 / RAS-24GAH-ES2
FILE NO. SVM-06021
COLOR IDENTIFICA TION
BR W : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GR Y : GRA Y
PNK : PINK
ORN : ORANGE
GRN&YEL : GREEN&
GRN : GREEN
PUR : PURPLE
YELLOW
BLK
WHI
RED
GRN&YEL
CN30
CN31
BLK
CN23
P04
SG01
R22
F01
FUSE
T6.3A
250V AC
J401
2
1 1 1232 3
FOR FLOA T SWITCH
(OPTION)
When you use float
switch you should
cut J401
LOUVER
MOT OR
R09 R507
R21
CN402 CN401 CN1 1
IC04
C15
R Y401
R405
CR401
FOR DRAIN PUMP
(OPTION)
CN07
L01
123
ORN
RED
PNK
YEL
BR W
BLU
654
654
C501
321
321
MAIN PCB
MCC-865A
R Y501
5 3
5 311
BR W
GR Y
YEL
CN25
CN13
R01
C01
CR502
CR501
CN10 BLK
WHI
1 1
RED
3 3
BLK
6 6
3 3
2 2
1 1
INFRARED RA YS RECEIVE
AND INDICA TION P AR TS
123
456
BLU
DB01
BLU
DC12V
DC5V
IC03
WHI
RED
456
BLU
456
456
C02
PUR
GR Y
789
7891010
BLU
BLU
BLU
BLU
789
7891010
BLU
123
BLU
123
123
R506
BLU
POWER SUPPLY
WHI
CIRCUIT
CN100
CN03
1 1
2 2
CN01
1 1
2 2
WHI
11
GR Y
22
GR Y
33
BLK
BLK
BLK
BLK
FAN
MOTOR
CN101
1
2
3
THERMO
SENSOR
(TA)
HEAT
EXCHANGER
SENSOR
(TC)
SWITCH
PCB
MCC-865B
OUTDOOR
TERMINAL
BLOCK
C
S
R
COMPRESSOR TERMINAL
POWER SUPPLY
220-240 V~ 50 Hz
L
BLK
RED
BLK
RED
WHI
PNK
COMPRESSOR
INDOOR
TERMINAL
BLOCK
N
FERRITE CORE
RED
MAGNETIC
CONTACTOR
R
(1/L1)
(3/L2)
(2/T1)
(4/T2)
U
CAPACITOR
S
R
2
1
1
GRN&YEL
3
2
3
CHASSIS
INDOOR
UNIT
OUTDOOR
UNIT
GRN&YEL
TRANSFORMER
BLK
BLK
RED
RED
BLK
BLK
WHI
RED
GRY
1
3
1
3
1
3
5
7
9
MAIN P.C. BOARD (MCC-890)
1
2
CN06
3
1
CN05
3
1
3
5
CN01
7
9
SG01
F01
250VAC T6. 3A
TNR
R74
TNR
R73
CN07
CN08
DISCHARGE
PIPE
SENSOR (TD)
BLU
1
1
2
3
3
BLU
BLK
1
1
2
3
3
BLK
HEA
T
EXCHANGER
SENSOR (TE)
RY07
BLU
131
S
T
A1
(5/L3)
52C
(6/T3)
BLK
A2
W
COIL FOR
4 WAY VALVE
CAPACITOR
RED
WHI
RE
D
FAN MOTOR
BLK
V
C
YEL
BLU
BLU
11
33
3
CN11
CN02
CR11
CR12
CR13
BLK
1
1
CN03
RY05
RY06
3
− 9 −
3-3. RAS-18GFP-ES2 / RAS-18GA-ES2
FILE NO. SVM-06021
CO LO R IDE NT IF IC ATIO N
BR W : BR O WN
R ED : R E D
WH I : WHI TE
YE L : YE LL OW
BL U : B LUE
BL K : B LA CK
GR Y : GR AY
PN K : PIN K
OR N : OR AN GE
GR N &YE L : GR E E N&
GR N : G R EE N
PU R : PU R PL E
YE L LOW
BL K
WH I
R ED
GR N &YE L
BL K
CN 30
CN 31
P0 4
CN 27
11
33
S G01
F0 1
T6 .3A
Whe n you us e float
R 09 R 50 7
R 22
FU S E
250V AC
R 21
CR 0 2
J4 01
21 1 1232
CN 402 CN 401 CN 11
FO R F LOAT S WI TC H
(OP T ION )
switch you s hould
cut J 401
R Y0 4
LO UV ER
MOT OR
FO R DR AI N P UMP
IC 04
R Y40 1
R 405
CR 4 01
(OP T ION )
C1 5
OR N
R ED
PN K
YE L
BR W
BL U
654
L01
123
654
C5 01
321
321
MAI N P CB
MC C- 865A
R Y50 1
5 3
5 311
BR W
GR Y
YE L
BL K
CN 07
3
INF R AR E D R AY S R EC E IV E
AND IND IC ATIO N PA R TS
123
CN 25
123
BL U
BL U
123
CN 13
123
R 01
DB 01
C0 1
CR 5 02
DC 12V
DC 5V
CR 5 01
CN 10 BL K
WH I
R ED
IC 03
R 506
1 1
3 3
6 6
3 3
2 2
1 1
BL U
WH I
R ED
456
456
BL U
456
456
C0 2
PU R
GR Y
BL U
BL U
789
7891010
BL U
BL U
789
7891010
BL U
BL U
WH I
CN 100
CN 101
S WIT CH
WH I
11
1
PC B
GR Y
22
2
GR Y
33
3
MC C-8 65B
P OWE R S U PP LY
C IR CU IT
CN 03
1 1
2 2
CN 01
1 1
2 2
BL K
BL K
BL K
BL K
FA N
MOT OR
TH ER M O
S EN S OR
(TA)
HE AT
E XC HAN GE R
S EN S OR
(T C)
OUTDOOR
TERMINAL
BLOCK
RED
WHI
PNK
POWER SUPPLY
220 − 240 V ~ 50 Hz
L
BLK
MAGNETIC
CONTACTOR
CAPACITOR
S
R
COMPRESSOR
C
S
R
BLK
RED
INDOOR
TERMINAL
BLOCK
N
RED
1
1
GRN&YEL
RED
2
3
2
3
BLK
BLK
GRN&YEL
CHASSIS
INDOOR
UNIT
OUTDOOR
UNIT
SPARK KILLER
GRY
R
U
T
S
W
V
(or A)
A1
(or B)
A2
CAPACITOR
RED
C
BLK
WHI
RED
BLK
FAN MOTOR
COMPRESSOR TERMINAL
− 10 −
3-4. RAS-24GFP-ES2 / RAS-24GA-ES2
FILE NO. SVM-06021
COLOR IDENTIFICA TION
BR W : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GR Y : GRA Y
PNK : PINK
ORN : ORANGE
GRN&YEL : GREEN&
GRN : GREEN
PUR : PURPLE
YELLOW
BLK
WHI
RED
GRN&YEL
BLK
CN30
CN31
CN27
P04
11
33
SG01
F01
T6.3A
When you use float
R09 R507
R22
FUSE
250V AC
R21
CR02
J401
21 1 1232
CN402 CN401 CN1 1
FOR FLOA T SWITCH
(OPTION)
switch you should
cut J401
R Y04
LOUVER
MOT OR
FOR DRAIN PUMP
IC04
R Y401
R405
CR401
(OPTION)
ORN
RED
PNK
YEL
BR W
BLU
654
L01
123
654
C501
321
321
MAIN PCB
MCC-865A
R Y501
5 3
5 311
BR W
GR Y
YEL
BLK
CN07
C15
3
INFRARED RA YS RECEIVE
AND INDICA TION P AR TS
123
CN25
123
BLU
BLU
123
CN13
123
R01
DB01
C01
CR502
CR501
R506
CN10 BLK
WHI
1 1
RED
3 3
6 6
3 3
2 2
1 1
BLU
DC12V
DC5V
IC03
WHI
RED
456
456
BLU
456
456
C02
PUR
GR Y
789
10
789
10
BLU
BLU
BLU
BLU
BLU
WHI
789
10
10
789
CN100
CN101
SWITCH
WHI
11
1
PCB
GR Y
22
2
GR Y
33
3
MCC-865B
POWER SUPPL Y
CIRCUIT
BLU
CN03
1 1
2 2
CN01
1 1
2 2
BLK
BLK
BLK
BLK
FA N
MOT OR
THERMO
SENSOR
(TA)
HEA T
EXCHANGER
SENSOR
(TC)
OUTDOOR
TERMINAL
BLOCK
INDOOR
TERMINAL
BLOCK
POWER SUPPLY
220 − 240 V ~ 50 Hz
L
N
BLK
BLK
RED
RED
MAGNETIC CONTACTOR
RED
BLK BLK
SPARK KILLER
A2 A1
52C
1/L1 2/T1
3/L2 4/T2
5/L3 6/T3
1
1
2
2
GRN&YEL
RED
CAPACITOR
3
3
GRY
CHASSIS
RED
RED
CAPACITOR
S
WHI
PNK
R
COMPRESSOR
INDOOR
UNIT
OUTDOOR
UNIT
WHI
RED
C
FAN MOTOR
BLK
S
COMPRESSOR TERMINAL
BLK
C
R
− 11 −
FILE NO. SVM-06021
4. SPECIFICATION OF ELECTRICAL PARTS
4-1. Indoor Unit (RAS-24GFHP-ES2, RAS-18GFHP-ES2)
No. Parts name Type Specifications
1 Fan motor (for indoor) AFP-220-50-4A Output (Rated) 50W, 220-240V
2 Thermo sensor (TA-sensor) ——— 10kΩ at 25°C
3 DC-DC transformer (T01) SWT-47 DC 390V, Secondary DC 12V, 7V
4 Microcomputer TMP87CM40AN
Heat exchanger sensor
5
(TC-sensor)
6 Line filter (L01) SS11V-R07190 19mH, AC0.7A
7 Diode (DB01) D3SBA60 4A, 600V
8 Capacitor (C02) EKMH401VSN470MP20S 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
——— 10kΩ at 25°C
Output (Rated) 2W, 6poles, 4phase,
DC 12V
4-2. Outdoor Unit (RAS-24GAH-ES2)
No. Parts name Type Specifications
Output (Rated) 2200W, 2poles, 1 phase, 220 − 240V, 50Hz
1 Compressor PA290X3CS-4MU1 Winding resistance (Ω) Red-Black White-Black
(at 20°C) 1.13 2.10
Output (Rated) 42W, 4poles, 1 phase, 220 – 240V, 50Hz
2 Fan motor (for outdoor) FG-240-42A-1 Winding resistance (Ω) Red-Black White-Black
(at 20°C) 128 126
Running capacitor
3
(for fan motor)
Running capacitor
4
(for compressor)
Solenoid coil
5
(for 4-way valve)
6 Thermo sensor TE / TD 10kΩ at 25°C / 50kΩ at 25°C
7 Magnetic contactor CLK-35J 220 ~ 240V, 50Hz
8 Transformer TT-05 220 ~ 240V
9 Microcontroller TMP47C840N
10 Varistor (R73, R74) 15G471K 470V
11 Fuse (F01) TSCR T6.3A, 250V
451305L AC 450V, 3.0µF
RS44B506U0218S AC 440V, 50µF
VHV (STF) AC 220 ~ 240V
- 12 -
FILE NO. SVM-06021
4-3. Outdoor Unit (RAS-18GAH-ES2)
No. Parts name Type Specifications
Output (Rated) 1500W, 2poles, 1 phase, 220 − 240V, 50Hz
1 Compressor PA225X2CS-4KU1 Winding resistance (Ω) Red-Black White-Black
(at 20°C) 1.54 2.48
Output (Rated) 42W, 4poles, 1 phase, 220 – 240V, 50Hz
2 Fan motor (for outdoor) FG-240-42A-1 Winding resistance (Ω) Red-Black White-Black
(at 20°C) 128 126
Running capacitor
3
(for fan motor)
Running capacitor
4
(for compressor)
Solenoid coil
5
(for 4-way valve)
6 Thermo sensor TE / TD 10kΩ at 25°C / 50kΩ at 25°C
7 Magnetic contactor CLK-26J 220 − 240V, 50Hz
8 Transformer TT-05 220 − 240V
9 Microcomputer TMP47C840N
10 Varistor (R73, R74) 15G471K 470V
11 Fuse (F01) TSCR T6.3A, 250V
451305L AC 450V, 3.0 µF
RS44B506U0218S AC 440V, 50µF
VHV (STF) AC 220 − 240V
4-4. Indoor Unit (RAS-24GFP-ES2, RAS-18GFP-ES2)
No. Parts name Type Specifications
1 Fan motor (for indoor) AFS-220-31-4A AC 200 − 240V, 31W
2 Thermo sensor (TA-sensor) ——— 10 kΩ at 25°C
3 Micro Power Module (M01) µRM1260V DC 390 V, Secondary DC 12 V
4 Microcontroller TMP87CM40AN
5 Heat exchanger sensor
(TC-sensor)
6 Line filter (L01) LC*SS11V-06270 27mH, 600mA
7 Diode (DB01) D3SBA60 4 A, 600 V
8 Capacitor (C63) KMH400VSSN47M22S 4.7µF, 400 V
9 Fuse (F01) BET6.3A T6.3 A, 250 V
10 Varistor (R21, R22) TND15G561K 560 V
11 Resistor (R319) RF-2TK5R6 5.6Ω, 2 W
12 Louver motor
13 Relay : (RY04) G5NB-1A Coil DC 12V, 16.7mA, Contact AC 250V, 1A
35BYJ46 Output (Rated) 2 W, 10 poles, 1 phase,
——— 10 kΩ at 25°C
DC 12 V
- 13 -
FILE NO. SVM-06021
4-5. Outdoor Unit (RAS-24GA-ES2)
No. Parts name Type Specifications
Output (Rated) 2200W, 2poles, 1 phase, 220 − 240V, 50Hz
1 Compressor PA290X3CS-4MU1 Winding resistance (Ω ) Red-Black White-Black
(at 20°C) 1.13 2.10
Output (Rated) 42W, 4poles, 1 phase, 220 − 240V, 50Hz
2 Fan motor (for outdoor) FG-240-42A Winding resistance (Ω) Red-Black White-Black
(at 20° C) 128 126
Running capacitor
3
(for fan motor)
Running capacitor
4
(for compressor)
5
Magnetic contactor
CLK-35J
451305L AC 450V, 3.0µ F
RS44B506U0218S
AC 440V, 50µ F
220 − 240V, 50Hz
4-6. Outdoor Unit (RAS-18GA-ES2)
No. Parts name Type Specifications
Output (Rated) 1500W, 2poles, 1 phase, 220 − 240V, 50Hz
1 Compressor PA225X2CS-4KU1 Winding resistance (Ω) Red-Black White-Black
(at 20°C ) 1.54 2.48
Output (Rated) 42W, 6poles, 1 phase, 220 − 240V, 50Hz
2 Fan motor (for outdoor) WLF-240-42A-1 Winding resistance (Ω) Red-Black White-Black
(at 20°C) 188 289
Running capacitor
3
(for fan motor)
Running capacitor
4
(for compressor)
5
Magnetic contactor
451205L AC 450V, 2.0µF
RS44B506U0218S AC 440V, 50µF
CLK-26J
220 − 240V, 50Hz
- 14 -
5. REFRIGERATION CYCLE DIAGRAM
5-1. RAS-18GFHP-ES2 / RAS-18GAH-ES2
FILE NO. SVM-06021
0.39m
(Connecting pipe)
∅12.70 mm
0.39m
(Flexible pipe)
∅12.70 mm
O.D.:12.70 mm
Cooling
Heating
Cooling
Heating
Packed valve
Heating
4-way valve
Cooling
P
(∅12.70)
Muffler
Compressor
P225X2CS-4KU1
Accumulator
Indoor unit
Evaporator
Multi blade fan
T
0.49m
(Connecting pipe)
∅6.35 mm
O.D.:6.35 mm
Packed valve
(∅6.35)
Capillary tube
∅2.0x1200S
Condenser
Refrigerant
R-410A 1.15 Kg
Fan speed
(indoor)
Ambient temp.
conditions DB/WB
(°C)
Indoor Outdoor
50Hz
Cooling
Heating
Propeller fan
Outdoor unit
Standard
pressure P
(MPaG)
Mark ( ) means check points of Gas Leak
Surface temp. of heat
exchanger interchanging
pipe T (°C)
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.
– 15 –
5-2. RAS-18GFP-ES2 / RAS-18GA-ES2
FILE NO. SVM-06021
0.39m
(Connecting pipe)
∅12.70 mm
0.39m
(Flexible pipe)
∅12.70 mm
O.D.:12.70 mm
Compressor
P
Packed valve
(∅12.70)
PA225X2CS-4KU1
Indoor unit
Evaporator
Multi blade fan
Condenser
Propeller fan
Outdoor unit
T
0.49m
(Connecting pipe)
∅6.35 mm
O.D.:6.35 mm
Packed valve
(∅6.35)
Capillary tube
∅
1.7x400
S
Refrigerant
R-410A 1.26 Kg
Mark ( ) means check points of Gas Leak
Ambient temp.
conditions DB/WB
(°C)
Indoor Outdoor
50Hz
Standard
pressure P
(MPaG)
Surface temp. of heat
exchanger interchanging
pipe T (°C)
Fan speed
(indoor)
Standard 1.1 10.0 High 27/19 35/24
Cooling High temperature 1.2 13.0 High 32/23 43/26
Low temperature 0.6 2.0 Low 21/15 21/15
Note : Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor.)
– 16 –
5-3. RAS-24GFHP-ES2 / RAS-24GAH-ES2
FILE NO. SVM-06021
0.39m
(Connecting pipe)
12.7
∅
O.D.:12.7mm
Cooling
Heating
Tank
Indoor unit
Cooling
Heating
P
Packed valve
(∅
12.7)
Gas container connection (Reinstall etc.)
Heating
4-way valve
Cooling
Compressor
PA290X3CS-4MU1
Heat exchanger
Cross flow fan
T1
Packed valve
(∅
6.35)
Main
2.0x1500
∅
s
0.
49m
(Connecting pipe)
6.35
∅
O.D.:6.35mm
Sub
∅
1.7x1000
S
Condenser
Cooling
Heating
Propeller fan
Outdoor unit
Mark(
Refrigerant
R410A 1.
)means check points of Gas Leak.
90 kg
Ambient temp.
50Hz
Standard
pressure
(MPaG)
P
Surface temp. of heat
exchanger interchanging
pipe
T1
(°C)
Fan speed
(indoor)
conditions DB/WB
(°C)
Indoor Outdoor
Standard 3.0 48.2 High 20/– 7/6
Heating Overload*1 3.93 56.4 Low 27/– 24/18
Low temperature 2.17 38.4 High 20/– –10/–10
Standard 3.03 8.7 High 27/19 35/24
Cooling Overload 4.02 12.1 High 32/23 43/26
Low temperature 2.1 0.3 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 operation, a value for the high temperature limit control operation is included.
- 17 -
5-4. RAS-24GFP-ES2 / RAS-24GA-ES2
FILE NO. SVM-06021
0.39m
(Connecting pipe)
∅12.70 mm
0.39m
(Flexible pipe)
∅12.70 mm
O.D.:12.70 mm
Cooling
Tank
Compressor
P
Packed valve
(∅12.70 )
PA290X3CS-4MU1
Indoor unit
Evaporator
Multi blade fan
T
0.49m
(Connecting pipe)
∅6.35 mm
O.D.:6.35 mm
Packed valve
(∅6.35)
Capillary tube
∅2.0x900S
Condenser
Refrigerant
R-410A 1.70 Kg
Fan speed
(indoor)
Ambient temp.
conditions DB/WB
(°C)
Indoor Outdoor
50Hz
Cooling
Propeller fan
Outdoor unit
Standard
pressure P
(MPaG)
Mark ( ) means check points of Gas Leak
Surface temp. of heat
exchanger interchanging
pipe T (°C)
Standard 3.183 7.0 High 27/19 35/24
Cooling High temperature 4.040 11.7 High 32/23 43/26
Low temperature 1.651 -0.4 Low 21/15 21/15
Note : Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor.)
– 18 –
6. CONTROL BLOCK DIAGRAM
6-1. RAS-18GFHP-ES2, RAS-24GFHP-ES2
Indoor Unit Control Panel
Heat Exchanger Sensor
Temperature Sensor
Functions
• Louver Control
• 3-minute Delay at Restart for Compressor
FILE NO. SVM-06021
8 MHzM.C.U.
Hi POWER
Display
FILTER Sign
Display
Infrared Rays Signal Receiver
Initiallizing Circuit
Infrared
Rays
36.7 kHz
Clock Frequence
Oscillator Circuit
Power Supply
Remote
Circuit
Control
Noise Filter
From Outdoor Unit
• Motor Revolution Control
• Processing
(Temperature Processing)
• Timer
• Drain Pump ON/OFF
• Serial Signal Communication
Serial Signal
Transmitter/
Receiver
Serial Signal Communication
Relay
RY401
Louver ON/OFF Signal
Louver Driver
PRE DEF.
Sign Display
TIMER
Display
OPERATION
Display
Indoor Fan
Motor
Louver Motor
Float
Switch
Drain
Pump
REMOTE CONTROL
Infrared Rays
Remote Control
Operation ( )Operation ( )
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
TIMER 1.3.5.9H
COMFORT SLEEP
QUIET
– 19 –
6-2. RAS-18GFP-ES2, RAS-24GFP-ES2
Indoor Unit Control Panel
Heat Exchanger Sensor
Temperature Sensor
Functions
• Louver Control
• 3-minute Delay at Restart for Compressor
FILE NO. SVM-06021
8 MHzM.C.U.
Hi POWER
Display
FILTER Sign
Display
Infrared Rays Signal Receiver
Initiallizing Circuit
Infrared
Rays
36.7 kHz
Clock Frequency
Oscillator Circuit
Power Supply
Circuit
Remote
Control
Noise Filter
From Outdoor Unit
• Motor Revolution Control
• Processing
(Temperature Processing)
• Timer
• Drain Pump ON/OFF
• Compressor ON/OFF
Driver
Relay
RY04
Compressor
Relay
RY401
Louver ON/OFF Signal
Louver Driver
FAN-ONLY
Sign Display
TIMER
Display
OPERATION
Display
Indoor Fan
Motor
Louver Motor
Float
Switch
Drain
Pump
REMOTE CONTROL
Infrared Rays
Remote Control
Operation ( )Operation ( )
Operation Mode Selection
AUTO, COOL, DRY, FAN ONLY
Temperature Setting
Fan Speed Selection
ON TIMER Setting
OFF TIMER Setting
Louver Auto Swing
Louver Direction Setting
ECO
Hi power
TIMER 1.3.5.9H
COMFORT SLEEP
QUIET
– 20 –
7. OPERATION DESCRIPTION
FILE NO. SVM-06021
7-1. Outline of Air Conditioner Contrrol
This is a fixmed capacity type air conditioner, which uses
a AC motor for an indoor fan.
circuit is mounted in the indoor unit.
par
ts which operate the compressor and the outdoor
fan motor, are mounted in the outdoor unit.
The air conditioner is mainly controlled by the indoor
unit controller
.
The controller operates the indoor fan
motor based upon commands transmitted by the
remote control and tr
ansfrers the operation commands
to the outdoor unit controllerm.
The outdoor unit controller receiv
commands from the indoor unit, and oper
outdoor f
(1)
an motor and the compressor
Role of indoor unit controller
The indoor unit controller receiv
commands from the remote control and e
them.
• Temperature measurement at the air inlet of the
indoor heat e
xchanger b
temperature sensor
•
T
emperature setting of the indoor heat
exchanger b
•
Louv
er motor control
•
Indoor f
•
LED display control
y the heat exchanger sensor
an motor oper
• T −r −ansferring of operation commands to the
outdoor unit
• −Receiving of inf −ormation of the operation status
and judging of the infor −mation or indication of
error
(2) Role of outdoor unit controller
The outdoor unit controller receives the oper −ation
commands from the indoor controller and
ex
ecutes them.
•
Compressor oper
control
• Operation control of
outdoor fan motor
OPERATION
MODE
RAS-18GFHP Series
RAS-18GFP Series
Model
RAS-24GFHP Series
RAS-24GFP Series
The AC motor driv
And electr
es oper
ation
e
ical
ates the
.
es the operMation
x
ecutes
y the indoor
ation control
ation
Operations according
to the commands
from the indoor unit
Cooling
Heat
an only
m
Air flo
w v
p
Air flo
w v
p+m
Air floanw v
p
Air flo
w v
olume (m
olume (m
olume (m
olume (m
UH
1120
/h)
3
/h)
3
/h)
3
/h)
830
−
−
1210
−
able 7-1-1
1090
930
• Turning off the compressor and outdoor fan
when the outdoor unit receives the shutdown
command
• Defrost control in heating operation
(Temperature measurement by the outdoor heat
exchanger and control for the four-way valve
and the outdoor fan motor) *Heat pump Model
only.
7-1-1. WLouver contr+ol
(1)
V+er=tical air floLOw louv
P
osition of v2eritcal air floTw louv
controlled according to the operation modeN.
BesidesA, position of vPer
arbitr
ar
ily set b
The louv
er position which is set bFy [FIX] b
stored in the microcomputerM, and the louvLer is
automatically set at the stored position fDror the neyxt
operLation.
(2)- Swing
If [SWING] b
is in operULation, the v
s
winging.r pWhen [SWING] button is pressed, it
stops swinging.
7-1-2.
(1)
Indoor fan contr
The indoor fan is oper
change AC motor3.
(2)
For air flo
w lev
controlled in five steps (LOW
and HIGH).
motor speed is automatically controlled b
diff
erence betw
the room temper
H
M+
M
H
M+
970
1030
770 720
1030
−
770
−
1000
1020
920
760
1090
810
1000
1120
830
1210
930
1060
800
1060
800
1170
900
1170
900
er
er is automatically
tical air floUw louvH er can be
y pressing [FIX] b
utton.
utton is
utton is pressed when the indoor unit
er
tical air flo
ol (AC F
ated b
el, speed of the indoor f
w louvHer starM+ts
an motor)
y the stepless speed
an motor is
, LOrW
, MED
, MED
If AUTO mode is selected, the f
y the
een the preset temper
ature
.
LO
=
W+MED
ature and
2
MED
FA
L+
M
950
700
900
680
750
750
MED+HIGH
T
L+
LL+
L
L
L+
820
800
600
580
820
−
−
860
660
600
860
660
800
580
850
650
850
650
L-
U
L-
L
700
490
700
490
L
650
450
650
450
L
U
L
690
480
690
480
SUL/SL-
S
600
410
600
410
640
440
640
440
+
SUL/SL-
500
320
−
−
540
350
−
− 21 −
FILE NO. SVM-06021
7-2. Description of Operation Circuit
(1) When turning on the breaker, the operation lamp
blinks. This means that the power is on (or the
power supply is cut off.)
(2) When pressing [ ] button on the remote control,
receiving beep sounds from the indoor unit, and
the next operation is performed together with
opening the vertical air flow louver.
(3) Once the operation mode is set, it is memorized in
the microcontroller so that the previous operation
can be effected thereafter simply by pressing
[ ] button.
7-2-1. Fan only operation
([MODE] button on the remote control is set
to the fan only operation.)
(1) When [FAN] button is set to AUTO, the indoor fan
motor operates as shown in Fig. 7-2-1. When
[FAN] button is set to LOW, LOW+, MED, MED+ or
HIGH, the motor operates with a constant air flow.
7-2-2. Cooling operation
([MODE] button on the remote control is set
to the cooling operation.)
(1) The compressor, 4-way valve, outdoor fan and
operation display on the remote control are
controlled as shown in Fig. 7-2-2.
°C
ON ON
OFF OFF OFF ON
4-way valve
Compressor
Outdoor fan
(Room temp.) (Preset temp.)
Preset
temp.
0.5
0
Fig. 7-2-2
display lamp
OPERATION
(Preset temp.)
—
(Room temp.)
Preset
temp.
+3
+2.5
+2
+1.5
+1
+0.5
0
M+
NOTE :
*1: The values marked with *1 are calculated and
controlled by the difference in motor speed
between M+ and L–.
(2) The Hi POWER, ECO and COMFORT SLEEP
operation cannot be set.
Fig. 7-2-1 Setting of air flow [FAN:AUTO]
(2) When [FAN] button is set to AUTO, the indoor fan
*1
*1
*1
L
—
motor operates as shown in Fig. 7-2-3. When
[FAN] button is set to LOW, LOW+, MED, MED+ or
HIGH, the motor operates with a constant air flow.
(Preset temp.)
—
(Room temp.)
Preset
temp.
+3
+2.5
+2
+1.5
+1
+0.5
0
-0.5
M+
*1
*1
*1
L
—
NOTE :
*1: The values marked with *1 are calculated and
controlled by the difference in motor speed
between M+ and L–.
Fig. 7-2-3 Setting of air flow [FAN:AUTO]
– 22 –
FILE NO. SVM-06021
7-2-3. Dry operation
([MODE] button on the remote control is set
to the dry operation.)
(1) The compressor, 4-way valve, outdoor fan and
operation display on the remote control are
controlled as shown in Fig. 7-2-4.
°C
ON:6min.
OFF:4min.
ON
ON:5min.
OFF:5min.
OFF
4-way valve
Outdoor fan
OPERATION
display lamp
(Room temp.) (Preset temp.)
Preset
temp.
+3
+2
+1
ON:6min.
OFF:4min.
OFF
ON:5min.
OFF:5min.
OFF
0
Compressor
Fig. 7-2-4
(2) The microcontroller turns the compressor on and
off at the regular intervals (4 to 6 minutes). While
the compressor is turning off, the indoor fan motor
operates in the SUPER LOW position.
The pattern of operation depending on the relation
between room temperature and preset
temperatures is shown in Fig. 7-2-5.
Room temp.
Preset temp.+1
Preset temp.
7-2-4. Heating operation *Heating and cooling model only
([MODE] button on the remote control is set to
the heating operation.)
(1) The compressor, 4-way valve, outdoor fan and
operation display on the remote control are
controlled as shown in Fig. 7-2-6.
°C
Preset
temp.
0
0.5
(Room temp.) (Preset temp.)
ON
OFF
ON
Compressor
OFF
ON
ON
4-way valve
Outdoor fan
OPERATION
display lamp
Fig. 7-2-6
(2) When [FAN] button is set to AUTO, the indoor fan
motor operates as shown in Fig. 7-2-7. When
[FAN] button is set to LOW, LOW+, MED, MED+ or
HIGH, the motor operates with a constant air flow.
Preset
temp.
0
-0.5
-1
-1.5
-2
(Preset temp.)
—
L
*1
*2
+
M
Compressor
Outdoor fan
Indoor fan
ON ON ON ON
OFF OFF OFF
L.*S.L. S.L.L. L. S.L. L.
*
Super Low
Fig. 7-2-5
(3) [FAN] button on the remote control is set to AUTO
only.
(4) The ECO and Hi POWER operations can not be
set.
-5.0
-5.5
[FAN AUTO]
(Room temp.)
*1, *2 : The values marked with *1 and *2 are
calculated and controlled by the difference in
motor speed between M+ and L.
Fig. 7-2-7 Setting of air flow [FAN:AUTO]
– 23 –
H
FILE NO. SVM-06021
(3) The indoor heat exchanger restricts revolving
speed of the fan motor to prevent a cold draft. The
upper limit of the revolving speed is sho wn in Fig.
7-2-8 and Table 7-2-1.
AUTO
34
46
33
45
21
33
20
32
*2
A + 4
A – 8
*6
A + 4
A – 8
*5
*4
SUL*3
SUL*1
Stop
Manual
(one of 5
speed)
L – H
(Up to
setting
speed)
NOTES :
*1: The fan stops for 2 minutes after thermostat-OFF.
*2: A is 24°C when the preset temperature is 24°C or
more and A is the preset temperature when it is
under 24°C.
*3: SUL means Super Ultra Low.
*4: Calculated from difference in motor speed
between SUL and HIGH.
Fig. 7-2-8 Cold draft preventing control
*5 and *6:
7-2-5. Automatic operation
([MODE] button on the remote control is set
to the automatic operation.)
(1) One of 3 operations (Cooling, Fan only or Heating)
is selected according to difference between the
preset temperature and the room temperature at
which the automatic operation has started, as
shown in Fig. 7-2-9. The Fan only operation
continues until the room temperature reaches a
level at which another mode is selected.
(2) Temporary Auto
When the TEMPORARY button on the indoor unit
is pushed, the preset temperature is fixed at 24°C
and the indoor unit is controlled as shown in
Fig. 7-2-9.
°C
Cooling operation
The louver moves to the position same
as Hi POWER operation.
+4
Cooling operation
0
Fan only operation
–1
Heating operation
(Room temp.) – (Preset temp.)
RAS-18GFHP-ES2 RAS-18GFP-ES2
RAS-24GFHP-ES2 RAS-24GFP-ES2
Fan
speed
AUTO
Manual
(L – H)
Table 7-2-1
*5
Starting period
• Up until 12 minutes
passed after starting
the unit
• From 12 to 25 minutes
passed after starting
the unit and room
temperature is 3°C
lower than preset
temperature
• Room temperature
<
Preset temperature
–4°C
Fig. 7-2-9
*6
Stabilized period
• From 12 to 25 minutes
passed after starting
the unit and room
temperature is between
preset temperature and
3°C lower than preset
temperature
• 25 minutes or more
passed after starting
the unit
• Room temperature
Preset temperature
–3.5°C
– 24 –
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