Toshiba RAS-24UKHP-ES-1 User manual

FILE NO. SVM-03009
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
Feb., 2003
RAS-24UKHP-ES-1 / RAS-24UAH-ES-1
RAS-18UKHP-ES2 / RAS-18UAH-ES2
RAS-24UKP-ES-1 / RAS-24UA-ES-1
RAS-18UKP-ES2 / RAS-18UA-ES2
18 Class
(Heat pump model) 24 Class18 Class (Cooling only model)

– 1 –
FILE NO. SVM-03009
CONTENTS
1. SPECIFICATIONS
2. CONSTRUCTION VIEWS
2-1 Indoor Unit
2-2 Outdoor Unit (RAS-24UAH-ES-1, RAS24UA-ES-1)
2-3 Outdoor Unit (RAS-18UAH-ES2)
2-4 Outdoor Unit (RAS-18UA-ES2)
3. WIRING DIAGRAM
3-1 RAS-24UKHP-ES-1 / RAS-24UAH-ES-1
3-2 RAS-18UKHP-ES2 / RAS-18UAH-ES2
3-3 RAS-24UKP-ES-1 / RAS-24UA-ES-1
3-4 RAS-18UKP-ES2 / RAS-18UA-ES2
4. SPECIFICATION OF ELECTRICAL PARTS
4-1 Indoor Unit (RAS-24UKHP-ES-1, RAS-18UKHP-ES2)
4-2 Outdoor Unit (RAS-24UAH-ES-1)
4-3 Outdoor Unit (RAS-18UAH-ES2)
4-4 Indoor Unit (RAS-24UKP-ES-1, RAS-18UKP-ES2)
4-5 Outdoor Unit (RAS-24UA-ES-1)
4-6 Outdoor Unit (RAS-18UA-ES2)
5. REFRIGERATION CYCLE DIAGRAM
5-1 RAS-24UKHP-ES-1 / RAS-24UAH-ES-1
5-2 RAS-18UKHP-ES2 / RAS-18UAH-ES2
5-3 RAS-24UKP-ES-1 / RAS-24UA-ES-1
5-4 RAS-18UKP-ES2 / RAS-18UA-ES2
6. CONTROL BLOCK DIAGRAM
6-1 RAS-24UKHP-ES-1, RAS-18UKHP-ES2
6-2 RAS-24UKP-ES-1, RAS-18UKP-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
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 Others

– 2 –
FILE NO. SVM-03009
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-24UAH-ES-1, RAS-24UA-ES-1)
10-3 Outdoor Unit (RAS-18UAH-ES2)
10-4 Outdoor Unit (RAS-18UA-ES2)
11. EXPLODED VIEWS AND PARTS LIST
11-1 Indoor Unit (E - Parts Assy)
11-2 Indoor Unit
11-3 Outdoor Unit (RAS-24UAH-ES-1)
11-4 Outdoor Unit (RAS-18UAH-ES2)
11-5 Outdoor Unit (RAS-24UA-ES-1)
11-6 Outdoor Unit (RAS-18UA-ES2)
•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.

– 3 –
FILE NO. SVM-03009
MODEL RAS-24UKHP-ES-1 RAS-24UKP-ES-1 RAS-18UKHP-ES2 RAS-18UKP-ES2
RAS-24UAH-ES-1 RAS-24UA-ES-1 RAS-18UAH-ES2 RAS-18UA-ES2
ITEM Cooling Heating Cooling Cooling Heating Cooling
Capacity 220V 240V 220V 240V 220V 240V 220V 240V 220V 240V 220V 240V
kW 6.30 6.30 6.80 6.90 6.40 6.45 5.00 5.05 5.45 5.55 5.05 5.10
Phase 1∅
Power source V 220 – 240
Hz 50
Power consumption kW 2430 2510 2355 2435 2360 2440 1850 1900 1648 1718 1820 1870
Power factor % 96 92 95 90 96 92 98 97 94 92 98 97
220V 240V 220V 240V 220V 240V 220V 240V 220V 240V 220V 240V
Running current A 0.3/ 0.3/ 0.3/11.2 0.3/10.9 0.3/10.8 0.2/ 0.2/ 0.2/ 0.2/ 0.2/8.2 0.2/7.8
Indoor/Outdoor 11.2 11.1 8.4 8.0 7.9 7.7
Starting current A 54 47
Moisture removal lit/h 2.5 2.7 2.0 2.0
Noise Indoor (H/M/L) dB 45/41/37 42/39/35
Outdoor (220-240V) dB 56-57 57-58 56-57 51-52 52-53 51-52
Refrigerant Name of refrigerant R410A
Rated amount kg 1.6 1.3 1.2
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 m10 8
difference
INDOOR UNIT RAS-24UKHP-ES-1 RAS-24UKP-ES-1 RAS-18UKHP-ES2 RAS-18UKP-ES2
Height mm 298
Dimensions Width mm 998
Depth mm 208
Net weight kg 12
Evaporator type Finned tube
Indoor fan type Cross flow fan
High fan m3/h 950 950 950 750 800 750
Air volume Medium fan m3/h 750 800 750 650 700 650
Low fan m3/h 600 650 600 530 570 530
Fan motor output W 20
Air filter Honeycomb woven filter with PP frame
OUTDOOR UNIT RAS-24UAH-ES-1 RAS-24UA-ES-1 RAS-18UAH-ES2 RAS-18UA-ES2
Height mm 690 538
Dimensions Width mm 880 830 780
Depth mm 310 300
Net weight kg 65 62 50 48
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 3400 3600 3400 3600 3400 3600 1800 2000 1800 2000 1800 2000
Fan motor output W 65 42
Compressor Model PA290X3F-4MS PA225X3F-4L
Output W 2200 1500
Safety device IOL, Td Sensor IOL IOL, Td Sensor IOL
Louver type Automatic louver
Usable outdoor temperature range °C 15 ~ 43 –10 ~ 24 15 ~ 43 15 ~ 43 –10 ~ 24 15 ~ 43
1. SPECIFICATIONS

– 4 –
FILE NO. SVM-03009
Note : 1
•Capacity is based on the following temperature conditions.
Note : 2
•Charge refrigerant according to the table below.
Refrigerant RAS-24UKHP-ES-1 / RAS-24UAH-ES-1 RAS-18UKHP-ES2 / RAS-18UAH-ES2
RAS-24UKP-ES-1 / RAS-24UA-ES-1 RAS-18UKP-ES2 / RAS-18UA-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 C9612-1994
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

– 5 –
FILE NO. SVM-03009
2. CONSTRUCTIONVIEWS
2-1. Indoor Unit
208
55 or more
Minimum distance to ceiling
998
298
50
75
56
75
50
75
7
51
100
40
48
450
20
20
48
100
∅65
998
298
10
763.5
5555 55 41
29
57 18
160
∅65
8
Back body
Knock out system
Front panel
Grille inlet
Knock out system
Connection pipe (0.39m)
(Flare ∅12.7) Connection pipe (0.49m) Wireless remote control
(Flare ∅6.35)
(For stud bolt ∅6)
Drain hose (0.54m)
Installation
Plate outline
Outline of indoor unit

–6 –
FILE NO. SVM-03009
2-2.Outdoor Unit (RAS-24UAH-ES-1, RAS-24UA-ES-1)
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 ∅12.7)
Service Port
600
340
23
68
Handle
4-∅12X18 for ∅8 ∅10
anchor bolt

–7 –
FILE NO. SVM-03009
2-3.Outdoor Unit (RAS-18UAH-ES2)
A
ADetail Drawing
∅6 hole
R10
∅11x14 hole
∅25 Drain outlet
8-∅6 holes
(for fixing outdoor unit)
6-∅11x14 holes
or ∅8 —∅10 anchor bolt)
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
4x∅11x14 for ∅8-∅10
anchor bolt
600
344
325
91 54
60
50
90
600
830
90
120
52
23
325
Handle
538
300
Service Port

–8 –
FILE NO. SVM-03009
2-4.Outdoor Unit (RAS-18UA-ES2)
9090
65.5
600
780
∅420
Fan guard
538
300
Handle ∅25Drain outlet 8-∅6 hole
(for fixing outdoor unit)
A
325
120
4-∅11x14 hole
(for ∅8-∅10 anchor bolt)
Liquid side (Flare ∅6.35)
Gas side (Flare ∅12.7)
52.5
Service Port
Electric parts cover
344
27
130
100
Installation dimension
100 or more Air inlet 600 or more
100 or more
Air inlet
Air
outlet
600 or
more 4x∅11x14
or ∅8-∅10
anchor bolt
600
325
23
301
325
∅11x14 hole
∅6 hole
R10
600
Detail Drawing
50
35
A

– 9 –
FILE NO. SVM-03009
3.WIRING DIAGRAM
3-1.RAS-24UKHP-ES-1 / RAS-24UAH-ES-1
:
:
:
:
:
:
:
:
:
:
BROWN
RED
WHITE
YELLOW
BLUE
BLACK
GRAY
PINK
ORANGE
GREEN
GREEN &YELLOW
BRW
RED
WHI
YEL
BLU
BLK
GRY
PNK
ORN
GRN&YEL :
GRN
COLOR IDENTIFICATION
1
2
3
4
65
PNK YEL
ORN
RED BRW
BLU
1
2
3
4
65
6
5
4
3
127 8 9 10
6
5
4
3
1
BLU
27 8 9 10
6
5
4
3
127 8 9 10
6
5
4
3
127 8 9 10
1
3
4
651
3
4
65
INFRARED RAYS RECEIVE
AND INDICATION PARTS
HEAT
EXCHANGER
SENSOR
(TC)
THERMO
SENSOR
(TA)
12
1212
12
CN03 CN01
CN25
CN13
BLK BLK BLK BLK
F01 FUSE DB01
FAN MOTOR
LOUVER
MOTOR
MAIN P.C. BOARD
(MCC-821)
L01
BLU BLU BLU BLU BLU BLU BLU BLU WHI
DC MOTOR
CN 07 CN 10
C02
C06
IC01
IC
T01
IC04
C15
CN23
BLK
WHI
RED
GRN&YEL
CN30
CN31
C01
R01
R09
R21
R22
BLK
P04 SG01
DSA VARISTOR
T6. 3A 250V
IC02
DISCHARGE
PIPE
SENSOR (TD)
HEAT
EXCHANGER
SENSOR (TE)
CN08
CN07 BLU
BLU
BLK
BLK
11
2
33
11
2
33
DC15V
DC0V
DC12V
DC7V
DC0V
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
(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)
POWER SUPPLY
220-240 V~ 50 Hz
INDOOR
TERMINAL
BLOCK
OUTDOOR
TERMINAL
BLOCK
INDOOR
UNIT
OUTDOOR
UNIT
C
SR
COMPRESSOR FAN MOTOR