Toshiba RAS-24UFHP-E5 User manual

SERVICE MANUAL
AIR-CONDITIONER
UNDER CEILING / CONSOLE TYPE
RAS-18UFHP-E5/ RAS-18NAH-E
RAS-24UFHP-E5 / RAS-24NAH-E
RAS-18UFP-E5 / RAS-18NA-E
RAS-24UFP-E5 / RAS-24NA-E
RAS-B18UFPX5 / RAS-18N2AX
RAS-24UFPX5 / RAS-24N2AX
FILE NO. SVM-06006
18 Class 24 Class
May, 2006

−1−
FILE NO. SVM-06006
CONTENTS
1. SPECIFICATIONS
1-1 18 Class
1-2 24 Class
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-18UFHP-E5/ RAS-18NAH-E
3-2 RAS-18UFP-E5/ RAS-18NA-E, RAS-B18UFPX5 / RAS-18N2AX
3-3RAS-24UFHP-E5/ RAS-24NAH-E
3-4RAS-24UFP-E5/ RAS-24NA-E
RAS-24UFPX5/ RAS-24N2AX
4. SPECIFICATION OF ELECTRICAL PARTS
4-1 Indoor Unit
4-2 Outdoor Unit (RAS-18N2AH-E)
4-3 Outdoor Unit (RAS-18N2AX, RAS-18NA-E)
4-4Outdoor Unit (RAS-24N2AH-E)
4-5Outdoor Unit (RAS-24NA-E, RAS-24N2AX4)
5. REFRIGERATION CYCLE DIAGRAM
5-1 RAS-18UFHP-E5/ RAS-18NAH-E
5-2 RAS-18UFP-E5/ RAS-18UA-E
RAS-B18UFPX5/ RAS-18N2AX
5-3
5-4
RAS-24UFHP-E5/ RAS-24NAH-E
RAS-24UFP-E5/ RAS-24NA-E
RAS-24UFPX5/ RAS -24N2AX
6. CONTROL BLOCK DIAGRAM
6-1 RAS-18UFHP-E5, RAS-24UFHP-E5
6-2 RAS-18UFP-E5, RAS-B18UFPX5
RAS-24UFP-E5, RAS-24UFPX5

−2−
FILE NO. SVM-06006
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
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-24NAH-E, RAS-24NA-E, RAS-24N2AX)
10-3 Outdoor Unit (RAS-18NAH-E)
10-4Outdoor Unit (RAS-18NA-E4, RAS-18N2AX)
7-9Self-Cleaning function
7-10 QUIET Mode
7-11 COMFORT SLEEP mode
11-
11.
3
EXPLODED
Outdoor Unit
VIEWS AND P AR
(RAS-18
TS LIST
NAH-E)
11-1 Indoor Unit (E-Parts Assy)
11-2 Indoor Unit
11-4Outdoor Unit (RAS-18NA-E, RAS-18N2AX)
11-5Outdoor Unit (RAS-24NAH-E)
11-6Outdoor Unit (RAS-24NA-E, RAS-24N2AX)

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FILE NO. SVM-06006
1. SPECIFICATIONS
1-1
RAS-B18UFPX5/18N2AX
Cooling Heating Cooling
Capacity kW 220V 240V 220V 240V 220V 240V
5.00 5.70 5.80 5.20 5.25
Phase 1∅
Power source V220 – 240
Hz 50
Power consumption W2000 2130 1830 2000 2000 2120
Power factor %958793849691
Running current Indoor A0.40 0.40 0.40 0.40 0.40 0.40
Outdoor A9.20 9.85 8.50 9.50 9.05 9.30
Starting current A
Moisture removal lit/h 2.0
Noise Indoor (H/M/L) dB 43/41/39/37/36
Outdoor dB 52 53 53 54 51 52
Refrigerant Name of refrigerant R-22
Rated amount kg 1.53 1.0
Refrigerant control Capillary tube
Gas side sizemm∅12.70
Connection type Flare connection
Liquid side size mm ∅6.35
Interconnection Connection type Flare connection
pipe Maximum length m 15*1
(One way) 20*2
Maximum height m 8
difference
INDOOR UNIT RAS-18UFHP-E5
RAS-18UFP-E5
RAS-B18UFPX5
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
Air volume Medium fan m3/h 680 700 680
Low fan m3/h 580 650 580
Fan motor output W 50
Air filter Washable -filter
OUTDOOR UNIT RAS-18N2AX
Width mm
Dimensions Height mm
Depth mm
Net weight kg 43 41
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 2350 24502350 24502350 2450
Fan motor output W6542
Compressor Model PH340X3C-4KT1
Output W
Safety device IOL, Td Sensor IOL
Louver type Automatic louver
Usable outdoor temperature range °C 15 ~ 43 –10 ~ 24 21 ~ 43
MODEL
ITEM
1500 1500
45 42
Note *1 Chargeless pipe
*2 Maximum pipe
780
550
290
RAS-18UFP-E5/18NA-E
RAS-18UFHP-E5/18NAH-E
RAS-18NA-E
RAS-18NAH-E

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FILE NO. SVM-06006
1-2
RAS-24UFPX5/24N2AX
Cooling Heating Cooling
Capacity kW 220V 240V 220V 240V 220V 240V
6.106.20 6.60 6.706.106.20
Phase 1∅
Power source V220 – 240
Hz 50
Power consumption W2480 2650 2410 2590 2260 2400
Power factor %978994869284
Running current Indoor A0.450.450.450.450.450.45
Outdoor A11.15 11.95 11.20 12.05 10.75 11.40
Starting current A
Moisture removal lit/h
Noise Indoor (H/M/L) dB 46/44/42/39/37
Outdoor dB 565757585657
Refrigerant Name of refrigerant R-22
Rated amount kg 2.00 1.68
Refrigerant control Capillary tube
Gas side sizemm∅15.88
Connection type Flare connection
Liquid side size mm ∅6.35
Interconnection Connection type Flare connection
pipe Maximum length m 15*1
(One way) 25*2
Maximum height m 10
difference
INDOOR UNIT RAS-24UFHP-E5
RAS-24UFP-E5
RAS-24UFPX5
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 900 930 900
Air volume Medium fan m3/h 750760750
Low fan m3/h 650660650
Fan motor output W50
Air filter Washable -filter
OUTDOOR UNIT RAS-24N2AX
Width mm
Dimensions Height mm
Depth mm
Net weight kg 56 52
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 2400 25502400 2550 2400 2550
Fan motor output W
Compressor Model PH400X3CS-4KT1
Output W
Safety device IOL, Td Sensor IOL
Louver type Automatic louver
Usable outdoor temperature range °C 15 ~ 43 –10 ~ 24 21 ~ 43
MODEL
ITEM
1800
2.5 2.7
Note *1 Chargeless pipe
*2 Maximum pipe
780
715
290
RAS-24UFP-E5/24NA-E
RAS-24UFHP-E5/24NAH-E
RAS-24NA-E
RAS-24NAH-E
67
42

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FILE NO. SVM-06006
Note : 1
• Capacity is based on the following temperature conditions.
Note : 2
• Charge refrigerant according to the table below.
refrigerant
*2 Need to charge Over 15m up to 20m (20g/m) Over 15m up to 25m (30g/m)
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
RAS-18UFHP-E5/ RAS-18NAH-E RAS-24UFHP-E5/ RAS-24NAH-E
RAS-18UFP-E5/ RAS-18NA-E RAS-24UFP-E5/ RAS-24NA-E
RAS-B18UFPX5/ RAS-18N2AX RAS-24UFPX5/ RAS-24N2AX
Refrigerant
*1 No need to charge 15m or less 15m or less

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FILE NO. SVM-06006
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

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
2-2. Outdoor Unit (24 Class)
−7 −
FILE NO. SVM-06006

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
2-3. Outdoor Unit(18 Class)
−8 −
FILE NO. SVM-06006

FILE NO. SVM-06006
3-1. RAS-18UFHP-E5/ RAS-18NAH-E
−9−
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
21 1 1232 3
123
654
654
321
321
123
123
456
456
789
789
10
10
CN25
ORN
RED
PNK
YEL
BRW
BLU
INFRARED RAYS RECEIVE
AND INDICATION PARTS
123
123
456
456
789
789
10
10
5 3
5 3
1
1
1 1
1 1
2 2
CN100
WHI
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
3. WIRING DIAGRAM
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
3
12
POWER SUPPLY
220-240V~50Hz
INDOOR
TERMINAL
BLOCK
OUTDOOR
TERMINAL
BLOCK
INDOOR
R
UNIT
S
OUTDOOR
C
UNIT