Toshiba RAS-24GKHP-ES2 User manual

FILE NO. SVM-06020
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
RAS-24GKHP-ES2 / RAS-24GAH-ES2
RAS-18GKHP-ES2 / RAS-18GAH-ES2
RAS-24GKP-ES2 / RAS-24GA-ES2
RAS-18GKP-ES2 / RAS-18GA-ES2
May, 2006
24 Class18 Class

CONTENTS
FILE NO. SVM-06020
1. SPECIFICATIONS
4-4 Indoor Unit (RAS-24GKP-ES2, RAS-18GKP-ES2)
2.
5-3 RAS-24GKP-ES2 / RAS-24GA-ES2
CONSTR
7-10 QUIET Mode
UCTIONVIEWS
7.
2-1
OPERA
Indoor Unit
7-11 COMFORT SLEEP mode
2-2
TION DESCRIPTION
7-1
Outdoor Unit
Outline of Air Conditioner Control
(24 Class)
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 A
2-3
uto Restar t Function
Outdoor Unit
7-8
(18 Class)
Filter Check Lamp
7-9 Self-Cleaning function
3. WIRING DIAGRAM
3-1
3-2 RAS-24GKHP-ES2 / RAS-24GAH-ES2
3-3 RAS-18GKHP-ES2 / RAS-18GAH-ES2
RAS-24GKP-ES2 / RAS-24GA-ES2
4. SPECIFICATION OF ELECTRICAL PARTS
4-1 Indoor Unit (RAS-24GKHP-ES2, RAS-18GKHP-ES2)
4-2 Outdoor Unit (RAS-24GAH-ES2)
4-3 Outdoor Unit (RAS-18GAH-ES2)
4-5Outdoor Unit (RAS-24GA-ES2)
4-5 Outdoor Unit (RAS-18GA-ES2)
5. REFRIGERATION CYCLE DIAGRAM
5-1
5-2 RAS-24GKHP-ES2 / RAS-24GAH-ES2
5-4
RAS-18GKHP-ES2 / RAS-18GAH-ES2
5-4 RAS-18GKP-ES2 / RAS-18GA-ES2
RAS-B18NKPX / RAS-18N2AX
6. CONTROL BLOCK DIAGRAM
6-1 RAS-24GKHP-ES2, RAS-18GKHP-ES2
6-2 RAS-24GKP-ES2, RAS-18GKP-ES2
3-3 RAS-18GKP-ES2 / RAS-18GA-ES2
-1-

-2-
•This air conditioner is charged with
HFC (R410A) that doesn't deplete the
Ozone layer.
•This air conditioner requires special
installation for the refrigerant R410A.
FILE NO. SVM-06020
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)
9-8 Troubleshooting for P.C. Board
9-9 Troubleshooting for Remote Control
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
11-4 Outdoor Unit (RAS-18GAH-ES2)
(RAS-24GAH-ES2)
11-5 Outdoor Unit (RAS-24GA-ES2)
11-6Outdoor Unit (RAS-18GA-ES2)

MODEL
ITEM
Capacity 220V 240V 220V 240V 220V 240V 220V 240V 220V 240V 220V 240V
kW 6.306.306.80 6.90 6.80 6.85 5.00 5.05 5.45 5.55 5.30 5.35
Phase 1∅
Power source V220 -240
Hz 50
Power consumption W2430 2510 2400 2480 2560 2690 1850 1900 167817481860 1960
Power factor %9885 99 88 99 92 989794929796
220V 240V 220V 240V 220V 240V 220V 240V 220V 240V 220V 240V
Running current A0.3/ 0.3/
0.3/0.3/11.75 0.3/12.20 0.3/0.3/0.3/0.3/0.3/8.40.3/8.2
Indoor/Outdoor 11.0 11.23 8.37.9 7.87.6
Starting current A54
36
Moisture removal lit/h 2.5 2.7 2.0 2.0
Noise Indoor (H/M/L) dB
45/43/41/39/37
44/42/39/37/35
Outdoor (220-240V) dB 56-57 57-58 56-57 52-5353-5451-52
Refrigerant Name of refrigerant R410A
Rated amount kg 1.70
1.15
1.26
Refrigerant control Capillary tube
Gas side size mm ∅12.7
Connection type Flare connection
Liquid side size mm ∅6.35
Interconnection Connection type Flare connection
pipe Maximum length m15*1
(One way) 25*220*2
Maximum height m 8
difference
INDOOR UNIT RAS-24GKHP-ES2RAS-24GKP-ES2RAS-18GKHP-ES2RAS-18GKP-ES2
Height mm 298
Dimensions Width mm 998
Depth mm 220
Net weight kg 13
Evaporator type Finned tube
Indoor fan type Cross flow fan
High fan m3/h 900900900900 900 900
Air volume Medium fan m3/h 750 800 750 667 708667
Low fan m3/h 625 667 625 543584 543
Fan motor output W30
Air filter Honeycomb woven filter with PP frame
OUTDOOR UNIT RAS-24GAH-ES2RAS-24GA-ES2RAS-18GAH-ES2RAS-18GA-ES2
Height mm 715
Dimensions Width mm 780 780 780
Depth mm 290
290
Net weight kg 56 52 44 39
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 2400 2550 2400 2550 2400 2550 2350 2450 2350 2450 2120 2200
Fan motor output W42 42
Compressor Model PA290X3CS-4MU1 PA225X2CS-4KU1
Output W 2160 1500
Safety device IOL, Td Sensor IOL IOL, Td Sensor IOL
Louver type Automatic louver
Usable outdoor temperature range °C 15 ~ 43 -10 ~ 24 21 ~ 43 15 ~ 43 -10 ~ 24 21 ~ 43
1. SPECIFICATIONS
RAS-24GKHP-ES2RAS-24GKP-ES2RAS-18GKHP-ES2RAS-18GKP-ES2
RAS-24GAH-ES2RAS-24GA-ES2RAS-18GAH-ES2RAS-18GA-ES2
Cooling Heating Cooling Cooling Heating Cooling
10
33
10.7 0.3/
11.45
54
1.90
550
290
Note *1 Chargeless pipe
*2 Maximum pipe
FILE NO. SVM-06020
550
-3-

Note : 1
·Capacity is based on the following temperature conditions.
Note : 2
·Charge refrigerant according to the table below.
Refrigerant RAS-24GKHP-ES2/ RAS-24GAH-ES2 RAS-18GKHP-ES2 / RAS-18GAH-ES2
RAS-24GKP-ES2/ RAS-24GA-ES2 RAS-18GKP-ES2 / RAS-18GA-ES2
*1 No need to charge 15m or less 15m or less
extra refrigerant
*2 Need to charge Over 15m up to 25m (20g/m) Over 15m up to 20m (20g/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
FILE NO. SVM-06020
-4-

2. CONSTRUCTIONVIEWS
2-1. Indoor Unit
FILE NO. SVM-06020
Air outlet
Air inlet
998
220
50
75
8
Knock out system
75 56
50
Back body
Front panel
Grille inlet
298
75
7
51
Knock out system
55 or more
Minimum distance to ceiling
100
40
48
450
20
20
48
100

∅65
998
298
10
763.5
5555 55 41
29
57 18
160

∅65
Connection pipe (0.39 m)
(Flare ∅15.88) 
Connection pipe (0.49 m) Wireless remote control
(Flare ∅6.35)
(For stud bolt ∅6)
(For stud bolt ∅8 -∅10)
Drain hose (0.54 m)
Installation
Plate outline
Outline of indoor unit
-5-

HANDLE
COVER-PV
HANDLE
600
Z View
Service port
321
307
A Detail Drawing (Back leg)
Ø
25 Drain outlet
2Ø11x14 Hole
(For Ø8-Ø10 anchor bolt)
B
Ø6Hole
Ø11x14 Hole
50
36 R15
R
5.5
Ø6 hole
28
321
86
A
124109
600 or more
Air out
let
321
600
Air inlet
4xØ11 Long holes(For Ø8- Ø10 anchor bolt)
Gas-side
(Flare Ø15.88)
Liquid side
(Flare Ø6.35)
90 600 90 69 342
321
Z
50
36 R15
B Detail Drawing (Front leg)
Ø436
FAN-GUARD
715
290
275
600 or more
84
129
54
Electrical part cover
321
307
100 or more
100 or more
Installation dimension
2.2Outdoor Unit (24 Class)
FILE NO. SVM-06020
-6-

321
307
Z View
600
A detail Drawing (Back leg)
321
307
Ø 25 Drain outlet 11 x 14 Hole
(For 8 - 10 anchor bolt)
B Detail Drawing (Front leg)
FAN-GUARD
COVER-PV
Electrical part cover
Liquid side
(Flare 6.35)
Ø
Ø
Gas side
(Flare 12.7)
Service port
4x 11 Long holes(For 8- 10 anchor bolt)
Installation dimension
Air outlel
100 or more
100 or more
600 or more
600 or more
Air intlel
Ø
ØØ
Ø6 hole
86
Ø6 hole
Ø11x14 hole
R
15
28
A
321
R5.5
36
109 124
50
129
84
54
600
321
9060090
275
290
550
Ø436
Z
R15
50
36
-
2
321
342
69
ØØØ
2.3Outdoor Unit(18 Class)
FILE NO. SVM-06020
-7-

FILE NO. SVM-06020
3.WIRING DIAGRAM
3-1. RAS-24GKHP-ES2 / RAS-24GAH-ES2
3
12
10
10
98
7
1 2 3 4 65 10
Infrared rays receive
5 64 CN13 321 78 9
9871 2 3 CN25
P04BLK
4 6
WHI
5
250V6.3A
F01
DSA Varistor
motor
Louver
BLU
ORN
5
5 2
23
31 1
RED YEL
CN07
PNK
4
4
98 1071 2 3
and Indication parts
4 65
YEL
GRY
BRW
TEMP FUSE
145 C
6
6
5
5
4
4
13
2
13
2
+5 VDC
+12 VDC
Serial Signal
circuit
MAIN P.C. BOARD
(WP-003)
CN23
CN31
CN30
BRW
6
6
BLU BLU BLU BLU BLU BLU BLU BLU BLU
WP-003
BRW : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
ORN : ORANGE
GRN : GREEN
GRN&YEL : GREEN & YELLOW
COLORIDENTIFICATION
PNK : PINK
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 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
POWER SUPPLY
220-240V~50Hz
OUTDOOR
TERMINAL
BLOCK
OUTDOOR
UNIT
R
S
C
-8-

FILE NO. SVM-06020
3-2. RAS-18GKHP-ES2/ RAS-18GAH-ES2
DISCHARGE
PIPE
SENSOR (TD)
HEA
T
EXCHANGER
SENSOR (TE)
CN08
CN07 BLU
BLU
BLK
BLK
1
1
2
3
3
1
1
2
3
3
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
C
WHI BLK
BLK
COIL FOR
4 WAY VALVE
RED
RE
D
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 1
1
3
3
1
1
3
3
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
10
10
98
7
1 2 3 4 65 10
Infrared rays receive
5 64 CN13 321 78 9
9871 2 3 CN25
P04BLK
4 6
WHI
5
250V6.3A
F01
DSA Varistor
motor
Louver
BLU
ORN
5
5 2
23
31 1
RED YEL
CN07
PNK
4
4
98 1071 2 3
and Indication parts
4 65
YEL
GRY
BRW
TEMP FUSE
145 C
6
6
5
5
4
4
13
2
13
2
+5 VDC
+12 VDC
Serial Signal
circuit
MAIN P.C. BOARD
(WP-003)
CN23
CN31
CN30
BRW
6
6
BLU BLU BLU BLU BLU BLU BLU BLU BLU
WP-003
BRW : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
ORN : ORANGE
GRN : GREEN
GRN&YEL : GREEN & YELLOW
COLOR IDENTIFICATION
PNK : PINK
R
S
C
-9-