Toshiba RAS-18SKHP-ES User manual

February, 2009
FILE NO. SVM-09036
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
RAS-18SKHP-ES / RAS-18S2AH-ES
RAS-24SKHP-ES / RAS-24S2AH-ES
RAS-18SKP-ES / RAS-18SA-ES
RAS-24SKP-ES / RAS-24SA-ES

–1–
FILE NO. SVM-09036
CONTENTS
1. SPECIFICATIONS
2. CONSTRUCTIONVIEWS
2-1 Indoor Unit
2-2 Outdoor Unit
3. WIRING DIAGRAM
4. SPECIFICATION OF ELECTRICAL PARTS
4-1 Indoor Unit (RAS-18SKP-ES, RAS-24SKP-ES)
4-2
4-3
Outdoor Unit (RAS-18SA-ES)
Outdoor Unit (RAS-24SA-ES)
5. REFRIGERATION CYCLE DIAGRAM
5-1
5-2
RAS-18SKP-ES / RAS-18SA-ES
RAS-24SKP-ES / RAS-24SA-ES
6. CONTROL BLOCK DIAGRAM
3-1 RAS-18SKP-ES / RAS-18SA-ES,
3-2 RAS-18SKHP-ES / RAS-18S2AH-ES
RAS-24SKP-ES / RAS-24SA-ES
RAS-24SKHP-ES / RAS-24S2AH-ES
4-4
4-5
Indoor Unit (RAS-18SKHP-ES, RASP-24SKHP-ES)
Outdoor Unit (RAS-18S2AH-ES)
4-6
Outdoor Unit (RAS-24S2AH-ES)
5-3
5-4
RAS-18SKHP-ES / RAS-18S2AH-ES
RAS-24SKHP-ES / RAS-24S2AH-ES
6-1 RAS-18SKP-ES / RAS-18SA-ES,
6-2 RAS-18SKHP-ES / RAS-18S2AH-ES
RAS-24SKP-ES / RAS-24SA-ES
RAS-24SKHP-ES / RAS-24S2AH-ES

−2−
FILE NO. SVM-09036
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 Test Operation
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)
9-6
9-7Troubleshooting for Wiring (Interconnect cable and Serial Signal Wire)
9-8Troubleshooting for P.C. Board
9-9Troubleshooting for Remote Control
10.
10-1 Indoor Unit
10-2 Outdoor Unit
11. EXPLODED VIEWS AND PARTS LIST
11-1 Indoor Unit (E - Parts Assy)
11-2 Indoor Unit
11-3
11-4
Outdoor Unit (RAS-18SA-ES, RAS-24SA-ES)
Outdoor Unit (RAS-18S2AH-ES, RAS-24S2AH-ES)
9-5How To Diagnose Faulty Parts
Troubleshooting for Indoor unit
HOW TO REPLACE THE MAIN PARTS
7. OPERATION DESCRIPTION
7-2Outline of Air Conditioner Control
7-3Description of Operation Circuit
7-4Description of Safety and Reliability Prevention Function
7-5One-Touch Operation
7-6Hi POWER Operation
7-7QUIET Operation
7-8ECO Operation
7-9COMFORT SLEEP Operation
7-10 FILTER Check lamp
7-1 Remote control
7-11 Auto Restart Function
7-12 Self-Cleaning Operation

−3−
FILE NO. SVM-09036
1. SPECIFICATIONS
MODEL RAS-18SKP-ES RAS-24SKP-ES
RAS-18SA-ES RAS-24SA-ES
ITEM Cooling Cooling
kW
Phase
V
Hz
Power consumption W
Power factor %
Running A
Current Indoor/Outdoor
Starting current A
Moisture removal lit/h
Noise Indoor (H/M+/M/L+/L) dB
Outdoor (220-240V) dB
Refrigerant Name of refrigerant
Rated amount kg
Refrigerant control
Interconnection Gas side size mm
pipe Connection type
Liquid side size mm
Connection type
Maximum length m
(One way)
Maximum height m
difference
INDOOR UNIT
Dimensions Height mm
Width mm
Depth mm
Net weight kg
Evaporator type
Indoor fan type
Airflow volume High fan m3/h
Medium fan m3/h
Low fan m3/h
Fan motor output W
Air filter
OUTDOOR UNIT
Dimensions Height mm
Width mm
Depth mm
Net weight kg
Condenser type
Outdoor fan type
Airflow volume m3/h
Fan motor output W
Compressor Model
Output W
Safety device
Louver type
Usable outdoor temperature range °C
2600
PA200X2CS-4KU1
1500
15 ~ 43
RAS-18SKP-ES RAS-24SKP-ES
1000
880
20*225*2
810
56 57
1.65
15*1
98 2450 93
0.3/7.30 0.3/6.90 0.50/14.70 0.50/12.90
240V 220V
5.35 6.80
1∅
220 - 240
50
1680 2410
Capacity
Power source
220V
5.30 240V 6.85
1640
98 97
44
2.7
31
2.0
44/42/39/37/35 45/43/41/39/37
56 57 R410A 1.70
Capillary tube
∅12.7
Flare connection
∅6.35
Flare connection
Fuse , IOL
320
1050
228
13
Finned tube
Cross flow fan 1100
950
850750 30
Honeycomb woven filter with PP frame
RAS-18SA-ES RAS-24SA-ES
Finned tube
715
780
290 5045
Propeller fan
2400 2550 2450
Automatic louver
42 PA270X3CS-4MU2
2000
Note *1 Chargeless pipe
*2 Maximum pipe

−4−
FILE NO. SVM-09036
MODEL RAS-18SKHP-ES RAS-24SKHP-ES
RAS-18S2AH-ES RAS-24S2AH-ES
ITEM Cooling Heating Cooling Heating
kW
Phase
V
Hz
Power consumption W
Power factor %
Running Indoor A
Current Outdoor A
Starting current A
Moisture removal lit/h
Noise Indoor (H/M+/M/L+/L) dB
Outdoor (220-240V) dB
Refrigerant Name of refrigerant
Rated amount kg
Refrigerant control
Interconnection Gas side size mm
pipe Connection type
Liquid side size mm
Connection type
Maximum length m
(One way)
Maximum height m
difference
INDOOR UNIT
Dimensions Height mm
Width mm
Depth mm
Net weight kg
Evaporator type
Indoor fan type
Airflow volume High fan m3/h
Medium fan m3/h
Low fan m3/h
Fan motor output W
Air filter
OUTDOOR UNIT
Dimensions Height mm
Width mm
Depth mm
Net weight kg
Condenser type
Outdoor fan type
Airflow volume m3/h
Fan motor output W
Compressor Model
Output W
Safety device
Louver type
Usable outdoor temperature range °C 15 ~ 43 -10 ~ 24 15 ~ 43 -10 ~ 24
PA200X2CS-4KU1
1500
2400 2550 2400 2550 2400 2550
RAS-18SKHP-ES RAS-24SKHP-ES
1000 1000
880 900 1100 1100
20*225*2
810
56-57 57-58
1.53
15*1
∅12.7
98 96 98
1∅
220 - 240
50
240V220V 220V 240V 220V 240V
5.45 5.56 6.30 6.35
1470
Capacity
Power source
5.10 5.12 220V 240V 6.80 6.90
97 98 93 98 93
1530 2190 22501540 1580 2050 2140
0.30 0.30
44
2.5
31
2.0
44/42/39/37/35 45/43/41/39/37
56-57 57-58 R410A 1.62
6.85 6.55 6.55 6.30 9.90 9.80 9.20 9.30
Capillary tube
Flare connection
∅6.35
Flare connection
Td sensor , Fuse , IOL
320
1050
750 770 950 950 850 850
228
13
715
780 780
715
Finned tube
Cross flow fan
30
Honeycomb woven filter with PP frame
RAS-18S2AH-ES RAS-24S2AH-ES
Finned tube 5347
290 290
Propeller fan 2400 2550
Automatic louver
42 PA270X3CS-4MU2
2000
Note *1 Chargeless pipe
*2 Maximum pipe

– 5–
FILE NO. SVM-09036
Note : 1
•Capacity is based on the following temperature conditions.
Note : 2
•Charge refrigerant according to the table below.
Refrigerant
*1 No need to charge 15 m or less 15 m or less
extra refrigerant
*2 Need to charge Over 15 m up to 20m (20 g/m) Over 15 m up to 25m (20 g/m)
extra refrigerant
RAS-18SKP-ES/ RAS-18SA-ES
Temperature Condition JIS C9612
Cooling Heating
Indoor unit inlet air temperature (DB) 27°C20°C
(WB) 19°C15°C
Outdoor unit inlet air temperature (DB) 35°C7°C
(WB) 24°C6°C
RAS-18SKHP-ES/ RAS-18S2AH-ESRAS-24SKP-ES/ RAS-24SA-ES RAS-24SKHP-ES/ RAS-24S2AH-ES

2.CONSTRUCTIONVIEWS
2-1. Indoor Unit
FILE NO. SVM-09036
73.57
Air inlet Air filter
Heat exchanger
Air outlet
1050
320
Front Panel
Grille Inlet
Knock out system
50
Knock out system
228
73.5
50
7
65
262.5
40
262.5
215
235
215
235
320
40
10947 215.5 153.5
85 23
65
200
525
278 200 222 150
6)
Hanger 8~
Hanger Hanger
Center line
10)
Installation plate outline
For stud bold (
For stud bold (
Outline of indoor unit
786
72 78
50 50
78 72
Drain hose (0.5m)
12.70)
Connecting pipe (0.39m) Connecting pipe (0.49m)
6.35)(Flare
Hanger
(Flare
Hanger
132
19
157
Wireless remote controller
56
Remote controller holder
26
125
63
−6−

–7–
FILE NO. SVM-09036
HANDLE
COVER-PV
HANDLE
600
Z View Service port
320
306
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
320
86
A
125108
600 or more
Air out
let
320
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
320
Z
50
36 R15
B Detail Drawing (Front leg)
Ø436
FAN-GUARD
715
290
275
600 or more
84
129
54
Electrical part cover
320
306
100 or more
100 or more
Installation dimension
2-2. Outdoor Unit

–8–
FILE NO. SVM-09036
3. WIRING DIAGRAM
3
12
OUTDOOR
3-1. RAS-18SKP-ES / RAS-18SA-ES, RAS-24SKP-ES / RAS-24SA-ES
S V
WT
LN3
12
RED
RED
RED
RED
BLK
BLK CHASSIS
GRY
POWER SUPPLY
220 −240 V ~ 50 Hz
SPARK KILLER
MAGNETIC CONTACTOR
BLK BLK
RED
A2 A1
52C
R U
COMPRESSOR
WHI
PNK BLK
C
S
R
CAPACITOR
CAPACITOR
WHI
RED
FAN MOTOR
BLK
OUTDOOR
TERMINAL
BLOCK
UNIT

3
12
TRANSFORMER
MAINP.C. BOARD (MCC-890)
OUTDOOR
UNIT
GRN&YEL
FERRITE CORE
DISCHARGE
PIPE
SENSOR (TD)
HEAT
EXCHANGER
SENSOR (TE)
CN08
CN07
BLU
BLU
BLK
BLK
11
2
33
11
2
33
RED
RED
BLK
BLK
MAGNETIC
CONTACTOR
RA1
A2
52C
U
S
V
T
W
PNK
WHI BLK WHI 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
BLK
BLK
RED
RED
11
33
11
33
2
CN11
BLU
YEL
1
3
1
3
1
1
3
CN02
BLU
BLU
11
33
CN03
F01
250VAC T6. 3A
CR11
CR12
CR13
RY07
RY05
RY06
SG01
CN06
TNR
R74
TNR
R73
COMPRESSOR FAN MOTOR
OUTDOOR
TERMINAL
BLOCK
LN3
1 2
S
R
C
POWER SUPPLY
220-240V ~50 Hz
i
CHASSIS
3-2. RAS-18SKHP-ES/ RAS-18S2AH-ES, RAS-24SKHP-ES/ RAS-24S2AH-ES
–9–
FILE NO. SVM-09036

4. SPECIFICATION OF ELECTRICAL PARTS
4-1. Indoor Unit (RAS-18SKP-ES, RAS-24SKP-ES)
4-2.Outdoor Unit (RAS-18SA-ES)
–10 –
FILE NO. SVM-09036
1Fan motor (for indoor) ICF-340-30-2BDC 340V, 30W
2 Thermo sensor (TA-sensor) ——— 10 kΩat 25°C
3Switching Transformer (T01) SWT-77 DC7V, 12 V
4Microcontroller TMP87CM40ANG-6P68
5 Heat exchanger sensor ——— 10 kΩat 25°C
(TC-sensor)
6Line filter (L01) LC*SS11V-R06270 27mH, 600mA
7 Diode (DB01) D3SBA60 4 A, 600 V
8Capacitor (C03) EKMH451VSN121MQ35S 120 µF, 450 V
9Fuse (F01) BET 6.3A 6.3 A, 250 V
10 Varistor (R09, R10) SR561K14DL 560 V
11 Resistor (R01) RF-5TK1R8
No.
1.8Ω,
P
5W
ar
1
ts name
2
T
Lou
ype
v
Specifications
er motor MP24Z3T Output (Rated) 2 W, 6 poles, 1-2 phas e ,
DC 12 V
13
G5NB-1A-CA
Relay : (RY03) Coil DC 12V, 16.7mA, Contact AC 250V, 1A
No. Parts name Type Specifications
Output (Rated) 1500W, 2poles, 1 phase, 220 −240V, 50Hz
1Compressor PA200X2CS-4KU1 Winding resistance (Ω)Red-BlackWhite-Black
(at20°C ) 1.85 2.62
Output (Rated) 42W, 4poles, 1 phase, 220 −240V, 50Hz
2Fan motor (for outdoor) FG-240-42A Winding resistance (Ω)Red-BlackWhite-Black
(at 20°C) 128 126
3Running capacitor DS451305NPQB AC 450V, 3.0µF
(for fan motor)
4Running capacitor B32332I5606J063 AC 450V, 50µF
(for compressor)
5
Magnetic contactor CLK-26J 220 −240V, 50Hz

4-3. Outdoor Unit (RAS-24SA-ES)
–11 –
FILE NO. SVM-09036
No. Parts name Type Specifications
1Fan motor (for indoor) ICF-340-30-2B DC 340V, 30W
2Thermo sensor (TA-sensor) ——— 10 kΩat 25°C
3Switching Transformer (T01) SWT-77 DC 7V, 12V
4Microcontroller TMP87CM40ANG-6P68
5 Heat exchanger sensor ——— 10 kΩat 25°C
(TC-sensor)
6Line filter (L01) LC*SS11V-R06270 27mH, 600mA
7Diode (DB01) D3SBA60 4 A, 600 V
8Capacitor (C03)EKMH451VSN121MQ35S 120 µF, 450 V
9Fuse (F01) BET 6.3A 6.3 A, 250 V
10Varistor (R09, R10)SR561K14DL 560 V
11 Resistor (R01) RF-5TK1R8 1.8Ω, 5W
12 Louver motor MP24Z3T Output (Rated) 2 W, 6 poles, 1-2 phase,
DC 12 V
No. Parts name Type Specifications
Output (Rated) 2000W, 2poles, 1 phase, 220 −240V, 50Hz
1Compressor PA270X3CS-4MU2Winding resistance (Ω)Red-BlackWhite-Black
(at 20°C) 1.37 2.55
Output (Rated) 42W, 4poles, 1 phase, 220 −240V, 50Hz
2Fan motor (for outdoor) FG-240-42A Winding resistance (Ω)Red-BlackWhite-Black
(at 20°C) 128 126
3Running capacitor DS451355NPQB AC 450V, 3.5µ F
(for fan motor)
4Running capacitor B32332I5606J063 AC 450V, 60µ F
(for compressor)
5
Magnetic contactor
CLK-35J 220 −240V, 50Hz
4-4. Indoor Unit (RAS-18SKHP-ES, RAS-24SKHP-ES)

4-5. Outdoor Unit (RAS-18S2AH-ES)
–12 –
FILE NO. SVM-08037
4-6. Outdoor Unit (RAS-24S2AH-ES)
Output (Rated) 1500W, 2poles, 1 phase, 220 −240V, 50Hz
1Compressor PA200X2CS-4KU1 Winding resistance (Ω)Red-BlackWhite-Black
(at 20°C) 1.85 2.62
Output (Rated) 42W, 4poles, 1 phase, 220 – 240V, 50Hz
2Fan motor (for outdoor) FG-240-42A-1 Winding resistance (Ω)Red-BlackWhite-Black
(at 20°C) 128 126
3Running capacitor DS451305NPQB AC 450V, 3.0µF
(for fan motor)
4Running capacitor B32332I5606J063 AC 450V, 50µF
(for compressor)
5Solenoid coil VHV (STF) AC 220 −240V
(for 4-way valve)
6Thermo sensor TE / TD 10kΩat 25°C / 50kΩat 25°C
7Magnetic contactor CLK-26J 220 −240V, 50Hz
8Transformer TT-05 220 −240V
9Microcomputer TMP47C840N
No. Parts name Type Specifications
10 Varistor (R73, R74) 15G471K 470V
11 Fuse (F01) TSCR T6.3A, 250V
No. Parts name Type Specifications
Output (Rated) 2000W, 2poles, 1 phase, 220 −240V, 50Hz
1Compressor PA270X3CS-4MU2 Winding resistance (Ω)Red-BlackWhite-Black
(at 20°C) 1.37 2.55
Output (Rated) 42W, 4poles, 1 phase, 220 – 240V, 50Hz
2Fan motor (for outdoor) FG-240-42A-1 Winding resistance (Ω)Red-BlackWhite-Black
(at 20°C) 128 126
3Running capacitor DS451305NPQB AC 450V, 3.0µF
(for fan motor)
4Running capacitor B32332I5606J063 AC 450V, 60µF
(for compressor)
5Solenoid coil VHV (STF) AC 220 ~ 240V
(for 4-way valve)
6Thermo sensor TE / TD 10kΩat 25°C / 50kΩat 25°C
7Magnetic contactorCLK-35J 220 ~ 240V, 50Hz
8Transformer TT-05 220 ~ 240V
9Microcontroller TMP47C840N
10 Varistor (R73, R74) 15G471K 470V
11 Fuse (F01) TSCR T6.3A, 250V

–13–
FILE NO. SVM-09036
5-1. RAS-18SKP-ES / RAS-18SA-ES
Note : Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor.)
Ambient temp.
conditions DB/WB
(°C)
Indoor Outdoor
Standard 0.94 10.6 High 27/19 35/24
Cooling High temperature 1.09 15.0 High 32/23 43/26
Low temperature 0.75 4.3 Low21/15 21/15
Fan speed
(indoor)
50 Hz Standard
pressure
P
(MPaG)
Cross flow fan
Compressor
Propeller fan
Outdoor unit
PA200X2CS-4KU1
O.D.:12.7 mm O.D.:6.35 mm
Packed valve
(∅12.7) Packed valve (∅6.35)
T
P
Refrigerant
R410A 1.65 kg
0.39 m
(Connecting pipe)
∅12.7
0.49 m
(Connecting pipe)
∅6.35
Mark ( ) means check points of Gas Leak
Capillary tube
∅2.0x1100 s
Surface temp. of heat
exchanger interchanging
pipe
T
(°C)
Heat exchanger
Heat exchanger
5. REFRIGERATION CYCLE DIAGRAM

–14–
FILE NO. SVM-09036
5-2. RAS-24SKP-ES / RAS-24SA-ES
Note : Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor.)
Ambient temp.
conditions DB/WB
(°C)
Indoor Outdoor
Standard 0.84 13.0 High 27/19 35/24
Cooling High temperature 1.01 17.0 High 32/23 43/26
Low temperature 0.65 5.0 Low21/15 21/15
Fan speed
(indoor)
50 Hz Standard
pressure
P
(MPaG)
Heat exchanger
Indoor unit
Cross flow fan
Cooling
Propeller fan
Outdoor unit
PA270X3CS-4MU2
Cooling
O.D.:12.7 mm O.D.:6.35 mm
Cooling
Gas container connection (Reinstall etc.)
Packed valve
( ∅ 6.35)
Packed valve
( ∅ 12.7 )
0.39 m
(Connecting pipe)
∅ 12.7
0.49 m
(Connecting pipe)
∅ 6.35
T
P
Refrigerant
R410A 1.70 kg
Compressor
Mark ( ) means check points of Gas Leak
Capillary tube
∅2.0x1000 s
Surface temp. of heat
exchanger interchanging
pipe
T
(°C)
Heat exchanger

-15 -
FILE NO. SVM-09036
5-3.RAS-18SKHP-ES / RAS-18S2AH-ES
Heat exchanger
Indoor unit
Cross flow fan
Cooling
Heating
4-way valve
Heating Cooling Compressor
Accumulator
Heat exchanger
Propeller fan
Outdoor unit
Capillary tube
Æ2.0 x 1000
Capillary tube
Æ1.7 x 600
PA200X2CS-4KU1
Cooling
Heating Mark ( ) means check points of Gas Leak.
O.D.:12.7 mm O.D.:6.35 mm
Cooling
Heating
Packed valve
(Æ12.7)
Packed valve
(Æ6.35)
0.39 m
(Connecting pipe) 0.49 m
(Connecting pipe)
T1
P
Refrigerant
R410A : 1.53 kg.
Æ12.7 Æ6.35
Ambient temp.
conditions DB/WB
(°C)
Indoor Outdoor
Standard 2.53 44.0 High 20/15 7/6
Heating Overload*1 3.30 ~ 3.65 51.0 ~ 55.0 Low27/-24/18
Low temperature 1.75 32.0 High 20/
Standard 0.54 11.0 High 27/19 35/24
Cooling Overload 1.12 15.0 High 32/23 43/26
Low temperature 0.72 4.2 Low21/15 21/15
Standard
pressure
P
(MPaG)
Surface temp. of heat
exchanger interchanging
pipe
T1
(°C)
Fan speed
(indoor)
50Hz
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.
l
l
--10/-10
·
·
Discharge Muffler
∅ 25x160L

-16 -
FILE NO. SVM-09036
5-4.RAS-24SKHP-ES / RAS-24S2AH-ES
Heat exchanger
Indoor unit
Cross flow fan
Cooling
Heating
4-way valve
Heating Cooling Compressor
Accumulator
Heat exchanger
Propeller fan
Outdoor unit
Capillary tube
Æ2.0 x 900
Capillary tube
Æ2.0 x 700
PA270X3CS-4MU2
Cooling
Heating Mark ( ) means check points of Gas Leak.
O.D.:12.7 mm O.D.:6.35 mm
Cooling
Heating
Packed valve
(Æ12.7)
Packed valve
(Æ6.35)
0.39 m
(Connecting pipe) 0.49 m
(Connecting pipe)
T1
P
Refrigerant
R410A 1.62 kg.
Æ12.7 Æ6.35
Ambient temp.
conditions DB/WB
(°C)
Indoor Outdoor
Standard 2.86 45.6 High 20/15 7/6
Heating Overload*1 3.54 ~ 3.91 53.6 ~ 57.6 Low27/-24/18
Low temperature 2.19 33.9 High 20/
Standard 0.84 10.0 High 27/19 35/24
Cooling Overload 1.12 16.1 High 32/23 43/26
Low temperature 0.74 2.3 Low21/15 21/15
Standard
pressure
P
(MPaG)
Surface temp. of heat
exchanger interchanging
pipe
T1
(°C)
Fan speed
(indoor)
50Hz
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.
l
l
--10/-10
·
·
Discharge Muffler
∅ 25x160L

– 17 –
FILE NO. SVM-09036
6. CONTROL BLOCK DIAGRAM
REMOTE CONTROL
Heat Exchanger Sensor
Outdoor Unit
Outdoor unit
ON/OFF Signal
Relay Driver
Indoor Unit Control Panel
Temperature Sensor
Infrared Rays Signal Receiver
Initiallizing Circuit
Clock Frequency
Oscillator Circuit
Power Supply
Circuit
Noise Filter
From Outdoor Unit
240 V AC 50 Hz
M.C.U.
Functions
•Louver Control
•3-minute Delay at Restart for Compressor
•Motor Revolution Control
•Processing
•Timer
Louver ON/OFF Signal
Louver Driver
Operation
Display
Timer
Display
Filter Sign
Display
Fan Only
Sign Display
Indoor
Fan Motor
Hi Power
Sign Display
Louver Motor
Infrared
Rays
Remote
Control
(Temperature Processing)
Operation ( )Operation ( )
Remote Control
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
Infrared Rays
COMFORT SLEEP
QUIET
Relay RY03
6.1 RAS-18SKP-ES / RAS-18S2A-ES, RAS-24SKP-ES / RAS-24S2A-ES

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FILE NO. SVM-09036
REMOTE CONTROL
Indoor Unit Control Panel
Heat Exchanger Sensor
Temperature Sensor
Infrared Rays Signal Receiver
Initiallizing Circuit
Clock Frequency
Oscillator Circuit
Power Supply
Circuit
Noise Filter
From Outdoor Unit
240 V AC 50 Hz
M.C.U.
Functions
•Louver Control
•3-minute Delay at Restart for Compressor
•Motor Revolution Control
•Processing
•Timer
•Serial Signal Communication
Louver ON/OFF Signal
Louver Driver
Serial Signal Transmitter/Receiver
Serial Signal Communication
Operation
Display
Timer
Display
Filter Sign
Display
PRE DEF.
Sign Display
Indoor
Fan Motor
Hi Power
Sign Display
Louver Motor
Infrared
Rays
Remote
Control
(Temperature Processing)
Operation ( )Operation ( )
Remote Control
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
Infrared Rays
COMFORT SLEEP
QUIET
6.2 RAS-18SKHP-ES / RAS-18S2AH-ES, RAS-24SKHP-ES / RAS-24S2AH-ES

7. OPERATION DESCRIPTION
1111Infrared signal emitter
Start/Stop button
Mode select button (MODE)
18
Temperature button (TEMP)
3
4Fan speed button (FAN)
Swing louver button (SWING)
5
6Set louver button (FIX)
On timer button(ON)
7
Off timer button (OFF)
8
Sleep timer button (SLEEP)
10
19 Timer setup button (SET)
11 Timer clear button (CLR)
20
12 Memory and Preset button (PRESET)
One Touch button (ONE-TOUCH)
High power button (Hi-POWER)
Economy button (ECO)
21
Quiet button (QUIET)
Comfort sleep button (COMFORT SLEEP)
Filter reset button (FILTER)
Clock Reset button (CLOCK)
Check button (CHK)
1
2
9
7-1. Remote control
7-1-1. Function of Push Putton
18
17
16
15
14
13
20
19
13
PRESET
ONE-TOUCH
QUIET
SWING
TIMER
ON
FILTER CHK CLOCK
OFF
CLR
SLEEP SET
FIX Hi-POWER ECO
COMFORT
SLEEP
MODE
TEMP
FAN
1
14
2
17
6
7
8
10
21
11
19
20
9
12
16
15
18
3
4
5
FILE NO. SVM-0936
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