Toshiba RAS-10GKHP-ES2, RAS-10GKP-ES2 SERVICE MANUAL
SERVICE MANUAL
AIR CONDITIONER
RAS-10GKHP-ES2 / RAS-10GAH-ES2
RAS-10GKP-ES2 / RAS-10GA-ES2
FILE NO. SVM-06039-2
SPLIT WALL TYPE
RAS-10GKHP-AS2 / RAS-10GAH-AS2
RAS-10GKP-AS2 / RAS-10GA-AS2
June 2006
CONTENTS
1. SPECIFICATIONS
2. CONSTRUCTION VIEWS
2-1 Indoor Unit
2-2 Outdoor Unit
3. WIRING DIAGRAM
RAS-10GKHP-ES2 / RAS-10GAH-ES2
3-1
3-2 RAS-10GKHP-AS2 / RAS-10GAH-AS2
RAS-10GKP-ES2 / RAS-10GA-ES2
3-3
3-4 RAS-10GKP-AS2 / RAS-10GA-AS2
4. SPECIFICATION OF ELECTRICAL PARTS
4-1 Indoor Unit (RAS-10GKHP-ES2, RAS-10GKHP-AS2)
4-2 Outdoor Unit (RAS-10GAH-ES2, RAS-10GAH-AS2)
4-3 Indoor Unit (RAS-10GKP-ES2, RAS-10GKP-AS2)
4-4 Outdoor Unit (RAS-10GA-ES2, RAS-10GA-AS2)
FILE NO. SVM-06039-2
5. REFRIGERATION CYCLE DIAGRAM
5-1 RAS-10GKHP-ES2 / RAS-10GAH-ES2,
5-1 RAS-10GKHP-ES2 / RAS-10GAH-ES2
RAS-10GKHP-AS2 / RAS-10GAH-AS2
RAS-10GKHP-AS2 / RAS-10GAH-AS2
5-2
RAS-10GKP-ES2 / RAS-10GA-ES2,
RAS-10GKP-AS2 / RAS-10GA-AS2
6. CONTROL BLOCK DIAGRAM
6-1 RAS-10GKHP-ES2 / RAS-10GAH-ES2,
RAS-10GKHP-AS2 / RAS-10GAH-AS2
6-2 RAS-10GKP-ES2 / RAS-10GA-ES2,
RAS-10GKP-AS2 / RAS-10GA-AS2
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 Defrost Operation
7-7 Current Limit Control
7-8 Auto Restart Function
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 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 Troubleshooting Flowcharts
9-6 Troubleshooting for Remote Control (Including The Indoor P.C. Board)
10. PARTS REPLACEMENT
10-1 Indoor Unit
10-2 Outdoor Unit
FILE NO. SVM-06039
11. EXPLODED VIEWS AND PARTS LIST
11-1 Indoor Unit (E-Parts Assy) (For RAS-10GKHP-ES2, RAS-10GKP-ES2)
11-2 Indoor Unit (E-Parts Assy) (For RAS-10GKHP-AS2, RAS-10GKP-AS2)
Indoor Unit
11-3
11-4 Outdoor Unit (RAS-10GAH-ES2, RAS-10GNAH-AS2)
11-5 Outdoor Unit (RAS-10GA-ES2, RAS-10GA-AS2)
• 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.
− 2 −
1. SPECIFICATIONS
FILE NO. SVM-06039
MODEL
ITEM Cooling Heating Cooling
Capacity
Power source V 220 − 240
Power consumption kW 0.83 0.85 0.79 0.82 0.83 0.85
Power factor % 98 97 97 96 98 97
Running Indoor A 0.15
current Outdoor A 3.71 3.50 3.55 3.40 3.71 3.50
Starting current A 18
Moisture removal lit/h 1.2
Noise
Refrigerant
Refrigerant control Capillary tube
Interconnection
pipe
INDOOR UNIT
Dimensions Width mm 740
Net weight kg 8
Evaporator type Finned tube
Indoor fan type Cross flow fan
Air volume Medium fan m3/h 460 480 460
Fan motor output W 20
Air filter Honeycomb woven filter with PP frame
OUTDOOR UNIT
Dimensions Width mm 780
Net weight kg 31 30
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 2030 2150 2030 2150 1740 1850
Fan motor output W 30 20
Compressor
Safety device Fuse, Overload relay
Louver type Automatic louver
Usable outdoor temperature range °C 15 ~ 43 −10 ~ 24 15 ~ 43
Indoor (H/M/L) dB 39/35/31
Outdoor (220-240V) dB 47 49 47 49 46 47
Name of refrigerant R410A
Rated amount kg 0.78
Gas side size mm ∅ 9.52
Connection type Flare connection
Liquid side size mm ∅ 6.35
Connection type Flare connection
Maximum length
(One way)
Maximum height
difference
Height mm 250
Depth mm 185
High fan m3/h 540 560 540
Low fan m3/h 380 390 380
Height mm 550
Depth mm 290
Model PA108X1C-4FZDN
Output W 750
kW 2.73 2.73 2.92 2.96 2.73 2.73
Phase 1∅
Hz 50
m 10*
m 5
RAS-10GKHP-ES2 / RAS-10GAH-ES2
RAS-10GKHP-AS2 / RAS-10GAH-AS2
220V 240V 220V 240V 220V 240V
1
RAS-10GKHP-ES2
RAS-10GAH-ES2
RAS-10GAH-AS2 RAS-10GA-ES2
RAS-10GKP-ES2 / RAS-10GA-ES2
RAS-10GKP-AS2 / RAS-10GA-AS2
0.72
RAS-10GKP-ES2
RAS-10GKP-AS2RAS-10GKHP-AS2
RAS-10GA-ES2
− 3 −
Note : 1
• Capacity is based on the following temperature conditions.
FILE NO. SVM-06039
Temperature
Indoor unit inlet air temperature
Outdoor unit inlet air temperature
Note : 2
*1 No need to charge extra refrigerant.
Condition
Cooling Heating
(DB) 27°C 20°C
(WB) 19°C 15°C
(DB) 35°C 7°C
(WB) 24°C 6°C
JIS B8615-1
− 4 −
2-1. Indoor Unit
FILE NO. SVM-06039
2. CONSTRUCTION VIEWS
(Flare ∅ 9.52)
160
57 18
Wireless remote control
– 5 –
2-2. Outdoor Unit
600
50
36
321
307
A detail Drawing (Back leg)
R5.5
R
Ø
15
6 hole
28
86
321
Ø
25 Drain outlet
FAN-GUARD
436
Ø
FILE NO. SVM-06039
A
109 124
307
321
Ø
2
-
Ø
11 x 14
(For 8 -
Ø
Hole
10 anchor bolt)
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 9.52)
Ø
5
4
Service port
Z View
9060090
69
129
84
45 or more
321
100 or more
600
Air intlel
Air outlel
400 or more
Installation dimension
− 6 −
600 or more
4x 11 Long holes(For 8- 10 anchor bolt)
Ø
Ø
Ø
3. WIRING DIAGRAM
3-1. RAS-10GKHP-ES2 / RAS-10GAH-ES2
FILE NO. SVM-06039-2
L
N
SINGLE PHASE
220-240V 50/60Hz
BRW
BLU
GRN & YEL
BLK
WHI
BLK
P04
CN31
T02
C.T.
1 1
3 3
CN27
CN03
1
1
BLK
2
THERMO
2
BLK
SENSOR (TA)
SG01
DSA
BLK
PINK
1
1
R22
VARISTOR
3
4
RY03
73 C x2
THERMAL FUSE
PINK
2
CN04
2
T6.3A 250VAC
RY01
CN01
2
1
HEAT EXCHANGER
2
1
BLK
BLK
SENSOR (TC)
RY04
CR02
CR01
LOUVER
MOTOR
YEL
5
5
R
1
STO
C01
R2
VARI
MAIN P.C. BOARD
WP-009
INFRARED RAYS RECEIVE
AND INDICATION PARTS
CN25
BLU
WHI
YEL
YEL
YEL
34
2
1
34
2
1
CN07
DC5V
Voltage
Regulator
C02
L01
CR03
135 C
1 1
2 2
3 3
4 4
5 5
AC FAN MOTOR
BLU
CN10
66
321
321
BLU
321
321
BLK
GRY
YEL
BRW
RED
WHI
R26
8
D3
C15
BLU
6
54 8
7
6
54 8
7
BLU
BLU
BLU
6
54 8
7
6
54 8
7
Micro
Power
Module
R319
R25
IC03
R27
3
5
3
5
WHI
DB01
CN14
DC12V
1
1
+
C63
CN11
21 3
21 3
INDOOR
TERMINAL
BLOCK
OUTDOOR
TERMINAL
BLOCK
OVERLOAD RELAY
COMPRESSOR
BLK
BLK
PNK
WHI
BLK
1
(L)2(N)
1
RED
WHI
2
BLK
SOLENOID COIL
RED
RED
CAPACITOR
RED
3
3
BLK
CAPACITOR
FAN
MOTOR
− 7 −
BLU
4
4
WHI BLK
INDOOR
OUTDOOR
CHASSIS
3-2. RAS-10GKHP-AS2 / RAS-10GAH-AS2
FILE NO. SVM-06039-2
SINGLE PHASE
220-240V 50/60Hz
BRW
BLU
GRN & YEL
BLK
WHI
BLK
P04
CN31
T02
C.T.
1 1
3 3
CN27
CN03
1
1
BLK
2
THERMO
2
BLK
SENSOR (TA)
SG01
DSA
BLK
PINK
1
1
R22
VARISTOR
3
4
RY03
73 C x2
THERMAL FUSE
PINK
2
CN04
2
T6.3A 250VAC
RY01
CN01
2
1
HEAT EXCHANGER
2
1
BLK
BLK
SENSOR (TC)
RY04
CR02
CR01
LOUVER
MOTOR
YEL
5
5
R
1
STO
C01
R2
VARI
MAIN P.C. BOARD
WP-009
INFRARED RAYS RECEIVE
AND INDICATION PARTS
CN25
BLU
WHI
YEL
YEL
YEL
34
2
1
34
2
1
CN07
DC5V
Voltage
Regulator
C02
L01
CR03
135 C
1 1
2 2
3 3
4 4
5 5
AC FAN MOTOR
BLU
CN10
66
321
321
BLU
321
321
BLK
GRY
YEL
BRW
RED
WHI
R26
8
D3
C15
BLU
6
54 8
7
6
54 8
7
BLU
BLU
BLU
6
54 8
7
6
54 8
7
Micro
Power
Module
R319
R25
IC03
R27
3
5
3
5
WHI
DB01
CN14
DC12V
1
1
+
C63
CN11
21 3
21 3
INDOOR
TERMINAL
BLOCK
OUTDOOR
TERMINAL
BLOCK
OVERLOAD RELAY
COMPRESSOR
BLK
BLK
PNK
WHI
BLK
1
(L)2(N)
1
RED
WHI
2
BLK
SOLENOID COIL
RED
RED
CAPACITOR
RED
3
3
BLK
CAPACITOR
FAN
MOTOR
− 8 −
BLU
4
4
WHI BLK
INDOOR
OUTDOOR
CHASSIS
RAS-10GKP-ES2 / RAS-10GA-ES2
3-3.
FILE NO. SVM-06039-2
BRW
L
BLU
N
GRN & YEL
SINGLE PHASE
220-240V 50/60Hz
BLK
P04
CN31
CN03
1
1
BLK
2
2
BLK
SENSOR (TA)
SG01
DSA
THERMO
VARISTOR
BLK
R22
PINK
1
1
3
4
CN01
73 C x2
THERMAL FUSE
PINK
2
CN04
2
T6.3A 250VAC
RY01
2
1
HEAT EXCHANGER
2
1
BLK
BLK
SENSOR (TC)
LOUVER
MOTOR
YEL
YEL
YEL
YEL
4 3
2
5
4 3
2
5 1
CN07
R
1
STO
C01
R2
VARI
MAIN P.C. BOARD
WP-009
AC FAN MOTOR
WHI
1
L01
135 C
CN25
DC5V
INFRARED RAYS RECEIVE
AND INDICATION PARTS
1 2 3
1 2 3
BLU
BLU
1 2 3
1 2 3
Voltage
Regulator
C02
CR03
6
84 5
7
6
84 5
7
BLU
BLU
R26
8
D3
BLU
R319
R25
R27
WHI
BLU
BLU
6
84 5
7
CN14
6
84 5
7
Micro
Power
Module
DB01
IC03
C15
6 6
CN10
11
22
33
44
55
BLK
GRY
YEL
BRW
RED
WHI
3
5
5
1
3
1
DC12V
+
C63
CN11
31 2
31 2
WHI
INDOOR
TERMINAL
BLOCK
1
BLK
OUTDOOR
TERMINAL
BLOCK
1(L)
BLK
BLK
FAN MOTOR
OVERLOAD RELAY
RED
2
WHI
2(N)
COMPRESSOR
RED
WHI
GRN&YEL
CHASSIS
RED
CAPACITOR
INDOOR
OUTDOOR
CAPACITOR
RED
WHI
− 8-(1) −
3-4. RAS-10GKP-AS2 / RAS-10GA-AS2
FILE NO. SVM-06039-2
BRW
BLU
GRN & YEL
SINGLE PHASE
220-240V 50/60Hz
BLK
P04
CN31
CN03
1
1
BLK
2
2
BLK
SENSOR (TA)
SG01
DSA
THERMO
VARISTOR
BLK
R22
PINK
1
1
3
4
CN01
73 C x2
THERMAL FUSE
PINK
2
CN04
2
T6.3A 250VAC
RY01
2
1
HEAT EXCHANGER
2
1
BLK
BLK
SENSOR (TC)
LOUVER
MOTOR
YEL
YEL
YEL
YEL
4 3
2
5
4 3
2
5 1
CN07
R
1
STO
C01
R2
VARI
MAIN P.C. BOARD
WP-009
AC FAN MOTOR
WHI
1
L01
135 C
CN25
DC5V
INFRARED RAYS RECEIVE
AND INDICATION PARTS
1 2 3
1 2 3
BLU
BLU
1 2 3
1 2 3
Voltage
Regulator
C02
CR03
6
84 5
7
6
84 5
7
BLU
BLU
R26
8
D3
BLU
R319
R25
R27
WHI
BLU
BLU
6
84 5
7
CN14
6
84 5
7
Micro
Power
Module
DB01
IC03
C15
6 6
CN10
11
22
33
44
55
BLK
GRY
YEL
BRW
RED
WHI
3
5
5
1
3
1
DC12V
+
C63
CN11
31 2
31 2
WHI
INDOOR
TERMINAL
BLOCK
1
BLK
OUTDOOR
TERMINAL
BLOCK
1(L)
BLK
BLK
FAN MOTOR
OVERLOAD RELAY
RED
2
WHI
2(N)
COMPRESSOR
RED
WHI
GRN&YEL
CHASSIS
RED
CAPACITOR
INDOOR
OUTDOOR
CAPACITOR
RED
WHI
− 8-(2) −
FILE NO. SVM-06039
4. SPECIFICATION OF ELECTRICAL PARTS
4-1. Indoor Unit (RAS-10GKHP-ES2, RAS-10GKHP-AS2)
No. Parts name Type Specifications
1 Fan motor (for indoor) MMF-240-20-4B
2 Thermo sensor (T
3
Micro power module (M01)
4 Microcontroller unit (IC30)
5 Heat exchanger sensor
(TC-sensor)
6 Line filter (L01) LC*SS11V-06270
7 Bridge rectifier (DB01) D3SBA60 4A, 600V
8
Capacitor (C63)
9 Fuse (F01)
10 Varistor (R21, R22) TND15G-561KB0SLAA0 560V
11
Resistor (R319)
12 Louver motor MP24ZT 12VDC
13 Relay (Comp., RY01)
14 Relay (Fan, RY03)
15 Relay (Solenoide, RY04)
A-sensor) 10kΩ at 25°C
µ
RM1260V
TMP87CM40AFG-6G61
EKMH401VSN470MP20S
BET6.3A
RF-2TK5R6 5.6Ω, 2W
G4A-1A-E
G5NB-1A
G5NB-1A
AC Motor with 135°C thermo fuse
10kΩ at 25°C
27mH, 600mA
47µF, 400V
T6.3A, 250VAC
ΩΩ
Rating 20A/AC250V, 12VDC
Rating 3A/AC250V, 12VDC
Rating 3A/AC250V, 12VDC
4-2. Outdoor Unit (RAS-10GAH-ES2,RAS-10GAH-AS2)
No. Parts name Type Specifications
Output (Rated) 750W , 2poles, 1 phase, 220 − 240V, 50Hz
1 Compressor PA108X1C-4FZDN Winding resistance (Ω) C-R C-S
(at 20°C) 3.75 4.75
Output (Rated) 30W, 6poles, 1 phase, 220 − 240V, 50Hz
2 Fan motor (for outdoor) Winding resistance (Ω) Red-Black White-Black
Running capacitor
3
(for fan motor)
Running capacitor
4
(for compressor)
Solenoid coil
5
(for 4-way valve)
6
Overload relay
WLF-240-30A
(at 20°C)
DS451155NPQB AC 450V~, 1.5µ
RS44B256U0213S
−
LPAP960B
AC 440V~, 25
AC 220 − 240V
U/T: 6.1A(80°C), Open: 135±5°C, Clse: 75±11°C
µF
237
F
380
− 9 −
FILE NO. SVM-06039
4-3. Indoor Unit (RAS-10GKP-ES2, RAS-10GKP-AS2)
No. Parts name Type Specifications
1 Fan motor (for indoor)
2 Thermo sensor (TA-sensor) 10kΩ at 25°C
Micro power module (M01)
3
4 Microcontroller unit (IC30)
5 Heat exchanger sensor
(TC-sensor)
6 Line filter (L01) *SS11V-06270 27mH, 600mA
7 Bridge rectifier (DB01)
8 Capacitor (C63)
9 Fuse (F01) BET6.3A
V
10
11
12
aristor (R21, R22) TND15G-561KB0SLAA0 560V
Louver motor
Relay (Comp., RY01) G4A-1A-E
MMF-240-20-4B
µ
RM1260V
TMP87CM40AFG-6G61
D3SBA60 4A, 600V
EKMH401VSN470MP20S
MP24T
AC Motor with 135°C thermo fuse
10kΩ at 25°C
2200µF, 25V
6.3A, 250VAC
12VDC
Rating 25A/AC250V, 3~48VDC
4-4. Outdoor Unit (RAS-10GA-ES2, RAS-10GA-AS2)
No. Parts name Type Specifications
Output (Rated) 750W, 2poles, 1 phase, 220 − 240V, 50Hz
1 Compressor PA108X1C-4FZDN Winding resistance (Ω) C-R C-S
(at 20°C) 3.75 4.75
Output (Rated) 20W, 6poles, 1 phase, 220 − 240V, 50Hz
2 Fan motor (for outdoor) Winding resistance (Ω) Red-Black White-Black
Running capacitor
3
(for fan motor)
Running capacitor
4
(for compressor)
5
Overload relay
SKF-240-20B
DS451155NPQB
RS44B256U0213S
LPAP960B
(at 20°C)
AC 450V~,1.5 µF
AC 440V~,25
U/T: 6.1A(80°C), Open: 135±5°C, Clse: 75±11°C
µF
235.2 260.1
− 10 −
5. REFRIGERATION CYCLE DIAGRAM
5-1. RAS-10GKHP-ES2 / RAS-10GAH-ES2
RAS-10GKHP-AS2 / RAS-10GAH-AS2
FILE NO. SVM-06039
Indoor unit
Cooling
0.39m
(Connecting pipe)
∅9.52
O.D.:9.52mm O.D.:6.35mm
Cooling
Heating
Heating
P
Packed valve
(∅9.52)
Heating
4-way valve
Cooling
Compressor
PA108X1C-4FZDN
Accumulator
Heat exchanger
Cross flow fan
T1
Capillary tube
∅1.5x1000
Packed valve
(∅6.35)
Capillary tube
∅1.5x1200
l
0.49m
(Connecting pipe)
∅6.35
l
Heat exchanger
Refrigerant
R410A : 0.78 kg.
Cooling
Heating
Propeller fan
Outdoor unit
Mark( )means check points of Gas Leak.
Ambient temp.
50Hz
Standar d
pressure
(MPaG)
P
Surface temp. of heat
exchanger inter changing
pipe
T1
(°C)
Fan speed
(indoor)
conditions DB/WB
(°C)
Indoor Outdoor
Standard 2.95 43.5 High 20/15 7/6
Heating Overload 3.70 57.0 Low 27/− 24/18
Low temperature 2.40 32.0 High 20/−
−10/−10
Standard 0.93 10.5 High 27/19 35/24
Cooling Overload 1.08 15.0 High 32/23 43/26
Low temperature 0.69 2.0 Low 21/15 21/15
Note :
•
Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor)
− 11 −
5-2. RAS-10GKP-ES2 / RAS-10GA-ES2
RAS-10GKP-AS2 / RAS-10GA-AS2
FILE NO. SVM-06039
Indoor unit
Cooling
0.39m
(Connecting pipe)
∅9.52
O.D.:9.52mm O.D.:6.35mm
Cooling
Packed valve
Cooling
P
(∅9.52)
Compressor
PA108X1C-4FZDN
Heat exchanger
Cross flow fan
T1
0.49m
(Connecting pipe)
∅6.35
Packed valve
(∅6.35)
Capillary tube
∅1.5x1100l
Heat exchanger
Refrigerant
R410A : 0.72 kg.
Cooling
Propeller fan
Outdoor unit
Mark( )means check points of Gas Leak.
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 0.95 10.5 High 27/19 35/24
Cooling Overload 1.12 16.0 High 32/23 43/26
Low temperature 0.71 2.0 Low 21/15 21/15
Note :
•Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor)
−12 −
6. CONTROL BLOCK DIAGRAM
FILE NO. SVM-06039
6-1. RAS-10GKHP-ES2 / RAS-10GAH-ES2,
Main Unit Control Panel
Heat Exchange sensor
Thermo. Sensor
Current Sensor
(Compressor Current)
Infrared Rays Signal Reciver
Initiallizing Circuit
Clock Frequency
Oscillator Circuit
Power Supply
Circuit
Compressor
RAS-10GKHP-AS2 / RAS-10GAH-AS2
M.C.U.
Functions
• Louver Control
•3-minutes Delay at Restart
for Compressor
•Motor Revolution Control
•Processing
(Temperature Processing)
•Timer
ON/OFF
Signal
Outdoor Fan
ON/OFF
Signal
4-Way Valve
ON/OFF
Signal
Louver
ON/OFF
Signal
Operation
Display
Timer
Display
Indoor Fan
Motor
220-240 V~, 50Hz
REMOTE CONTROL
Noise Filter Relay Driver, Louver Driver
Relay
RY01
Compressor 4-Way Valve
Remote Control
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
Relay
RY03
Outdoor Fan Motor
Infrared Rays
Louver
Motor
Relay
RY04
ECO
Hi power
TIMER 1.3.5.9H
COMFORT SLEEP
QUIET
− 13 −
FILE NO. SVM-06039
6-2. RAS-10GKP-ES2 / RAS-10GA-ES2, RAS-10GKP-AS2 / RAS-10GA-AS2
Main Unit Control Panel M.C.U.
Heat Exchange sensor
Functions
Operation
Display
Thermo. Sensor
Infrared Rays Signal Reciver
• Louver Control
•3-minutes Delay at Restart
for Compressor
Initiallizing Circuit
Clock Frequency
Oscillator Circuit
Power Supply
Circuit
Noise Filter Relay Driver, Louver Driver
•Motor Revolution Control
•Processing
(Temperature Processing)
•Timer
Compressor
ON/OFF
Signal
Relay
RY01
Timer
Display
Fan Only
Sign Display
Indoor Fan
Motor
Louver
ON/OFF
Signal
Louver
Motor
220-240 V~, 50Hz
REMOTE CONTROL
Compressor, Outdoor Fan Motor
Infrared Rays
Remote Control
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
− 14 −
7. OPERATION DESCRIPTION
FILE NO. SVM-06039
7-1. Outline of Air Conditioner Control
This is a fixed capacity type air conditioner, which uses
AC motor for an indoor fan. The AC motor drive
circuit is mounted in the indoor unit. And electrical
parts which driving the compressor and the outdoor
fan motor, are mounted in the outdoor unit.
The air conditioner is controlled by the controller
mounted in the indoor unit. The controller operates all
components based on the commands transmitted from
the remote control and the feedback data of the sensor
is as follow:
• The temperature measurement at the air inlet of
the indoor heat exchanger by the indoor
temperature sensor
•The temperature measurement at the indoor
heat exchanger by the indoor heat exchanger
temperature sensor
• Indoor fan motor operation control
• Louver motor control
• LED display control
• Outdoor fan motor operation control
• 4-WAYS-VALVE operation control
(Heat pump model only)
• Compressor operation control
• Receiving the information of the operation
status and judging the information or the
indication of errors
7-1-1. Louver control
(1) Vertical air flow louver
Position of veritcal air flow louver is automatically
controlled according to the operation mode.
Besides, position of vertical air flow louver can be
arbitrarily set by pressing [FIX] button.
The louver position which is set by [FIX] button is
stored in the microcontroller, and the louver is
automatically set at the stored position for the next
operation.
(2) Swing
If [SWING] button is pressed when the indoor unit
is in operation, the vertical air flow louver starts
swinging. When [SWING] button is pressed again,
it stops swinging.
7-1-2. Indoor fan control (AC Fan motor)
(1) The indoor fan is operated by the stepless speed
change AC motor.
(2) For air flow level, speed of the indoor fan motor is
controlled in five steps (LOW, LOW
+
, MED, MED
and HIGH). If AUTO mode is selected, the fan
motor speed is automatically controlled by the
difference between the preset temperature and
the room temperature.
LOW
=
LOW+MED
+
2
MED+=
MED+HIGH
2
+
OPERATION
MODE
RAS-10GK Series
Model
RAS-10GKH Series
Table 7-1-1
FAN TAP
Cooling UH H M L L- UL SL
Fan only
Dry
Heat UH H M L L- UL SL
rpm
Air flow volume (m3/h) 560 540 500 460 400 390 350 300
rpm
Air flow volume (m3/h)
1350 1300 1180 1140
1350 1300 1180 1140
560 540 500 460 400 390 350 300 250
H M L L-
M L L- UL SL
980
1000
1000
900 800 700
980 900 800 700
750
270
750
270
250
550
180
550
180
− 15 −
FILE NO. SVM-06039
7-2. Description of Operation Circuit
(1) When turning on the breaker, the operation lamp
blinks. This means that the power supply is on.
(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
HIGH, the motor operates with a constant air flow.
°C
+3
+2.5
+2
-
+1.5
+1
+0.5
(Room temp.) (Preset temp.)
Preset
temp.
0
(Preset temp.: 22°C)
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]
+
, MED, MED+ or
M+
*1
*1
*1
-
L
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
OPERATION
-
(Room temp.) (Preset temp.)
Preset
temp.
0.5
0
Fig. 7-2-2
(2) When [FAN] button is set to AUTO, the indoor fan
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.
°C
(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-.
display
- 16 -
Fig. 7-2-3 Setting of air flow [FAN:AUTO]
FILE NO. SVM-06039
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.
-
(Room temp.) (Preset temp.)
Preset
temp.
+3
+2
+1
ON:6min.
OFF:4min.
ON:5min.
OFF:5min.
OFF
0
Compressor
OFF
ON:5min.
OFF
4-way valve
OFF:4min.
OFF:5min.
Outdoor fan
Fig. 7-2-4
7-2-4. Heating operation *Heat pump model only
(1) The compressor, 4-way valve, outdoor fan and
ON
display
OPERATION
([MODE] button on the remote control is set
to the heating operation.)
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
4-way valve
Fig. 7-2-6
ON
OFF
ON
Outdoor fan
display
OPERATION
(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.
Compressor
Outdoor fan
Indoor fan
ON ON ON ON
OFF OFF OFF
L *SL SLLL SL L
*
Super Low
Fig. 7-2-5
(3) [FAN] button on the remote control is set to AUTO
only.
(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.
°C
0
-0.5
-1
-1.5
-2
-
-5.0
-5.5
[FAN AUTO]
(Room temp.) (Preset temp.)
L
*1
*2
+
M
H
*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]
(4) The Hi POWER, ECO, COMFORT SLEEP and
QUIET operations cannot be set.
- 17 -
FILE NO. SVM-06039
(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 shown in
Fig. 7-2-8 and Table 7-2-1.
10GKH Series
°C
434232
31
323121
20
*2
A+4
A+4
A
−
8
A
−
8
*6 *5
Indoor heat exchanger temperature
AUTO
*4
*3
SL
SL*1
Stop
Manual
(One of 5 steps)
L- H (Up to
seting speed)
Fig. 7-2-8 Cold draft preventing control
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: SL means Super Low.
*4: Calculated from difference in motor speed
between SL and H.
*5 and *6:
Table 7-2-1
Fan *5 *6
speed Starting period Stabilized period
·
AUTO Up until 12 minutes
Manual Room temperature
(L H) < Preset temperature
-
·
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
·
·
-
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
4 °C
-
3.5 °C
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 [RESET] 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.
-
-
(Room temp.) (Preset temp.)
-
18
°C
Cooling operation
The louver moves to the position same
as Hi POWER operation.
+4
Cooling operation
0
Fan only operation
1
-
Heating operation
GKH Series GK Series
Fig. 7-2-9
FILE NO. SVM-06039
7-3. Hi POWER Mode
([Hi POWER] button on the remote
control is pressed.)
When [Hi POWER] button is pressed while the indoor
unit is in Auto, Cooling or Heating operation, Hi
POWER mark is indicated on the display of the remote
control and the unit operates as follows.
(1) Automatic operation
The indoor unit operates in according to the
·
current operation.
(2) Cooling operation
• The setting temperature drops 3°C.
(The value of the setting temperature on the
remote control does not change.)
• If the room temperature is higher than the
setting temperature by 3.5°C or more, the
horizontal louver moves to the Hi POWER
position automatically. Then when the room
temperature is 1°C less than the setting
temperature the horizontal louver returns
automatically.
• FAN speed : [AUTO]
If the room temperature is higher than the
setting temperature by 3.5°C or more, the air
conditioner operates at maximum airflow level.
If the room temperature is higher than the
setting temperature by less than 3.5°C, the air
conditioner operates at normal airflow level.
• FAN speed : One of 5 levels
If the room temperature is higher than the
setting temperature by 3.5°C or more, the air
conditioner operates at higher consecutive
airflow level. If the room temperature is higher
than the setting temperature by less than 3.5°C,
the air conditioner operates at normal airflow
level.
7-4. High-Temperature Limit Control
*Heat pump model only
The microcontroller detects the indoor heat exchanger
temperature to prevent pressure of a refrigerating cycle
from increasing excessively.
The compressor and outdoor fan motor are controlled
as shown in Fig. 7-4-1.
Compressor
OFF
ON
ON
Outdoor fan
OFF
OFF
ON
Heat exchanger
temp.
(°C)
60
53
52
Fig. 7-4-1
7-5. Low-Temperature Limit Control
The microcontroller detects the indoor heat exchanger
temperature to prevent the indoor heat exchanger from
freezing.
The compressor and outdoor fan motor are controlled
as shown in Fig. 7-5-1 and 7-5-2.
Heat exchanger
temperature
(°C)
5
2
Compressor Outdoor fan
ON
Less than 2°C continues
for 5 minutes
OFF
(3) Heating operation (GKH Series only)
The preset temperature increases 2°C,
·
(The value of the preset temperature on the
remote control does not change.)
The indoor unit operates in normal heating
·
mode except the preset temperature is higher
(+2°C).
(4) The Hi POWER mode can not be set in Dry or Fan
only operation.
-
19
Fig. 7-5-1
-
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