Toshiba RAS-07SKSX-1 User manual

FILE NO. SVM-08028
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
RAS-07SKSX-1 / RAS-07S2AX-1
RAS-09SKSX-1 / RAS-09SASX-1
April, 2008

− 1−
CONTENTS
1. SPECIFICATIONS
2. CONSTRUCTION VIEWS
2-1 Indoor Unit
2-2 Outdoor Unit (RAS-07S2AX-1)
3. WIRING DIAGRAM
4. SPECIFICATION OF ELECTRICAL PARTS
4-1 Indoor Unit
4-2 Outdoor Unit (RAS-07S2AX-1)
5. REFRIGERATION CYCLE DIAGRAM
5-1 RAS-07SKSX-1 / RAS-07S2AX-1
5-2 RAS-09SKSX-1 / RAS-09SASX-1
6. CONTROL BLOCK DIAGRAM
4-3 Outdoor Unit (RAS-09SASX-1)
7. OPERATION DESCRIPTION
7-1 Outline of Air Conditioner Control
7-4 Auto Restart Function
7-2 Description of Operation Circuit
7-3
Low-Temperature Limit Control
FILE NO. SVM-08028
2-3 Outdoor Unit (RAS-09SASX-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)

− 2−
10. PARTS REPLACEMENT
10-1 Indoor Unit
10-2 Outdoor Unit (RAS-07S2SX-1)
11. EXPLODED VIEWS AND PARTS LIST
11-1
11-4 Outdoor Unit (RAS-09SASX-1)
FILE NO. SVM-08028
11-3 Outdoor Unit (RAS-07S2SX-1)
11-2 Indoor Unit
Indoor Unit (E-Parts Assy)
10-3Outdoor Unit (RAS-09SASX-1)

– 3–
FILE NO. SVM-08028
540
1. SPECIFICATIONS
MO DE L
RAS-07SKSX-1 /RAS-07S2AX-1 RAS-09SKSX-1 /RAS-09SASX-1
IT E M Cooling
Capacity 220V 240V 220V 240V
kW 2.00 2.00 2.50 2.50
Phase 1
Power source V 220 - 240
Hz 50
Power consumption kW 0.62 0.66 0.84 0.88
Power factor % 98 96 98 98
Running Indoor A 0.15
current Outdoor A 2.72 2.72 3.75 3.60
Starting current A1315
Moisture removal lit/h 0.51.2
Noise Indoor (H/M/L) dB 40/35/3043/38/33
Outdoor dB 464746 47
Refrigerant Name of refrigerant R22
Rated amount kg 0.58
Refrigerant control Capillary tube
Gas side size mm  
9.52
Connection type Flare connection
Liquid side size mm 6.35
Interconnection Connection type Flare connection
pipe Maximum length m
10*1
(One way)
Maximum height m5
difference
INDOORUNITRAS-07SKSX-1 RAS-09SKSX-1
Height mm 250
Dimensions Width mm 740
Depth mm 185
Net weight kg
Evaporator type Finned tube
Indoor fan type Cross flow fan
Air volume
High fan m3/h
430 470
Fan motor output W 20
Air filter Honeycomb woven filter with PP frame
OUTDOORUNITRAS-07S2AX-1 RAS-09SASX-1
Height mm 530
Dimensions Width mm 660
Depth mm 240
Net weight kg 25
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 1580 1640
Fan motor output W 20 20
Compressor Model PH108X1C-4DZDN2
Output W 605 780
Safety device Fuse, Overload relay
Louver type Automatic louver
Usable outdoor temperature range °C 21 ~ 43
1620 1720
8
QK164PBA
26
390
350
510
Low fan
Medium fan m3/h
m3/h

−4−
Note : 1
•Capacity is based on the following temperature conditions.
Note : 2
Temperature
Condition JIS C9612
Cooling
Indoor unit inlet air temperature
(DB) 27°C
(WB)
Outdoor unit inlet air temperature
(DB) 35°C
(WB) 24°C
19°C
*1 No need to charge extra refrigerant.
FILE NO. SVM-08028

2. CONSTRUCTION VIEWS
2-1. Indoor Unit
FILE NO. SVM-08028
135
1654
Wireless remote control
– 5–

FILE NO. SVM-08028
−6−
2-2. Outdoor Unit
C
L
C
L
400
280

−7−
FILE NO. SVM-08028
P ower C ord
INDOOR
CHASSIS
TERMINAL
BLOCK
OUTDOOR
OUTDOOR
TERMINAL
BLOCK
1
(L)
2
(N)
FAN MOTOR
CAPACITOR CAPACITOR
RED
RED
PNK
WHI
BLK BLK
COMPRESSOR
RED
WHI
OVERLOAD RELAY
BLK
3. WIRING DIAGRAM
Type "A" Type "B"
FAN MOTOR
1∅220‑240V
50Hz
BRW
BLU
GRN&YEL
N
Heat exchanger
GRN&YEL
WHI
BLK
CN31 BLK
P04
CN01
Heat exchanger
Sensor(TC)
Thermo sensor(TA) CN03
CN25 CN12
Infrared rays receiver
WP‑017
and indication parts.
11
22
11
22
11
22
33
44
5
6
7
8
5
6
7
8
11
22
33
44
5
6
7
8
5
6
7
8
BLU
BLU
BLU
BLU
BLU
BLU
BLU
WHI
43
RY01
F01
6.3 A
250 VAC
R62 R63 SG01
DSA
L01
C25 C26
21
34
R64 DB01
C27
DC 12V
DC 5V
C07
IC03
12V
MCU
CN04
PNK
PNK
RED
BLK
WHI
CN10
YEL
GRY
BRW
CN11
11
22
33
11
22
33
44
55
11
22
33
44
55
YEL
YEL
YEL
YEL
WHI
CN07
Louver motor
Fan motor
11
22
33
44
5
6
5
6
11
33
55
AC motor
Temp fuse 73 C
o
11
22
Switching power supply
Voltage regulator
1
2
3
4
WP‑018
INDOOR
TERMINAL
BLOCK
GRN&YEL
BLK
WHI
12
SINGLE PHASE

− 8 −
FILE NO. SVM-08028
4. SPECIFICATION OF ELECTRICAL PARTS
4-1. Indoor Unit
4-2. Outdoor Unit (RAS-07S2AX-1)
Winding resistance (Ω)C-R C-S
(at 20ºC) 4.84 4.40
Output (Rated) 20 W, 6 poles, 1 phase, 220 - 240 V~, 50Hz
Winding resistance (Ω)Red-Black White-Black
(at 20ºC) 410 435
Output (Rated) 20 W, 6 poles, 1 phase, 220 - 240 V, 50Hz
Winding resistance (Ω)Red-Black White-Black
(at 20ºC) 235.2 260.1
Running capacitor
(for fan motor)
Running capacitor
(for compressor)
4RS44B256U0213SAC 440 V~, 25µF
5Overload relay U/T : 4.2A (80ºC), Open : 135±5ºC, Close : 69±11ºC
DS451155NPQB AC 450 V~, 1.5µF 3
WLF-240-20A
(Type "A")
SKF-240-20B
(Type "B")
Fan motor (for outdoor)2
Specifications
PH108X1C-4DZDN2Compressor1
JMRA99208-9102
ST-001
No. Parts name Type Specifications
1Fan motor (for indoor) AFS-220-20-4AR AC Motor with 145 °C thermo fuse
2 Thermo sensor (TA-sensor) 10k at 25 C
3Switching power supply (T01)
4Microcontroller unit (IC30) TMP87CM40ANG-6P68
5 Heat exchanger sensor 10k at 25 C
(TC-sensor)
6 Line filter (L01) LC*SS11V-06270 27mH, 600mA
7Bridge rectifier (DB01) DB105G 1A, 600 V
8Capacitor (C27)EKMH401VSN470MP20S 47mF, 400 V
9Fuse (F01) BET6.3A 6.3A, 250VAC
10 Varistor (R62, R63)SR561K14DL 560 V
11 Resistor (R64)RF-2TK5R6 5.6 , 2 W
12 Louver motor MP24ZCT 12VDC
13 Relay (Comp., RY01) G4A-1A-E-CA Rating 20A/AC250 V, 12VDC
W
W
W
°
°
Output (Rated) 605W, 2 poles, 1 phase, 220 - 240V~, 50Hz

− 9−
4-3. Outdoor Unit (RAS-09SASX-1)
FILE NO. SVM-08028
No. Parts name Type
Output (Rated) 780W, 2 poles, 1 phase, 220 - 240 V~, 50H
z
Winding resistance (Ω)C-R C-S
(at 20ºC) 3.51 3.67
Output (Rated) 20 W, 6 poles, 1 phase, 220 - 240 V~, 50Hz
Winding resistance (Ω)Red-Black White-Black
(at 20ºC) 410 435
Output (Rated) 20 W, 6 poles, 1 phase, 220 - 240 V, 50Hz
Winding resistance (Ω)Red-Black White-Black
(at 20ºC) 235.2 260.1
Running capacitor
(for fan motor)
Running capacitor
(for compressor)
4RS44B356U0215SAC 440 V~, 35µF
5Overload relay U/T : 6.1A (80ºC), Open : 135±5ºC, Close : 75±11ºC
DS451155NPQB AC 450 V~, 1.5µF 3
WLF-240-20A
(Type "A")
SKF-240-20B
(Type "B")
Fan motor (for outdoor)2
Specifications
QK164PBA
Compressor1
LPAP960B

– 10 –
FILE NO. SVM-08028
5. REFRIGERATION CYCLE DIAGRAM
5-1.RAS-07SKSX-1 / RAS-07S2AX-1
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 0.5713.0High 27/19 35/24
Cooling Overload 0.6817.5High 32/23 43/26
Low temperature 0.42 4.0Low21/15 21/15
Standard
pressure
P
(MPaG)
Surface temp. of heat
exchanger interchanging
pipe
T1
(°C)
Fan speed
(indoor)
50Hz
Heat exchanger
Indoor unit
Cross flow fan
Cooling
Cooling Compressor
Heat exchanger
Propeller fan
Outdoor unit
Capillary tube
∅1.2x500s
PH108X1C-4DZDN2
Cooling Mark ( ) means check points of Gas Leak.
O.D.:9.52mm O.D.:6.35mm
Cooling
Packed valve
(∅9.52) Packed valve (∅6.35)
0.39m
(Connecting pipe)
∅9.52
0.49m
(Connecting pipe)
∅6.35
T1
P
Refrigerant
R22 : 0.58 kg.

–11–
FILE NO. SVM-08028
5-2.RAS-09SKSX-1 / RAS-09SASX-1
Ambient temp.
conditions DB/WB
(°C)
Indoor Outdoor
Standard 0.50 11.0 High 27/19.5 35/24
Cooling Overload 0.60 15.0 High 32/23 43/26
Low temperature 0.402.2Low21/15 21/15
Standard
pressure
P
(MPaG)
Surface temp. of heat
exchanger interchanging
pipe
T1
(°C)
Fan speed
(indoor)
50Hz
Heat exchanger
Indoor unit
Cross flow fan
Cooling
Cooling Compressor
Heat exchanger
Propeller fan
Outdoor unit
Capillary tube
∅1.5x700s
QK164PBA
Cooling Mark ( ) means check points of Gas Leak.
O.D.:9.52mm O.D.:6.35mm
Cooling
Packed valve
(∅9.52) Packed valve (∅6.35)
0.39m
(Connecting pipe)
∅9.52
0.49m
(Connecting pipe)
∅6.35
T1
P
Refrigerant
R22 : 0.58 kg.
Note
•Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor)

−12 −
REMOTE CONTROL
Heat Exchange sensor
Main Unit Control Panel M.C.U.
Functions Operation
Display
Timer
Display
Fan Only
Sign Display
Indoor Fan
Motor
Louver
Motor
Louver
ON/OFF
Signal
Compressor
ON/OFF
Signal
Power Supply
Circuit
Noise Filter Relay Driver, Louver Driver
Relay
RY01
220-240 V~, 50Hz Compressor, Outdoor Fan Motor
Initiallizing Circuit
Clock Frequency
Oscillator Circuit
•Louver Control
•3-minutes Delay at Restart
for Compressor
•Processing
(Temperature Processing)
•Motor Revolution Control
•Timer
Thermo. Sensor
Infrared Rays Signal Reciver
FILE NO. SVM-08028
6. CONTROL BLOCK DIAGRAM
Remote Control
Operation (START/STOP)
Operation Mode Selection
AUTO, COOL, DRY, AUTO FAN
Temperature Setting
Fan Speed Selection
ON TIMER Setting
OFF TIMER Setting
Louver Auto Swing
Louver Direction Setting
ECO
Infrared Rays

7.OPERATION DESCRIPTION
−13 −
FILE NO. SVM-08028
MODE
AUTO
COOL
FAN TEMP.
TEMP.
START/STOP
SWING
MODE
TIMER
ON OFF SET CLR
ECO
RST CHK
FIX FAN
AUTO
QUIET
AUTO FAN
DRY
Hr.ON OFF
B
Infrared signal emitter
1
Set louver button (FIX)
2
Auto Louver button (SWING)
3
Mode select button (MODE)
4
Reset button (RST)
5
On timer button (ON)
6
Off timer button (OFF)
7
Reserve button (SET)
8
Cancel button (CLR)
9
Check button (CHK)
10
ECO button (ECO)
11
Fan speed button (FAN)
12
Start/Stop button (START/STOP)
13
Temperature button ( )
14
1
2
3
4
5
6
78
9
10
11
12
13
14
7-1. Remote control
7-1-1. Function of Push Putton

1
7
8
6
3
4
2
Hr.ON OFF
••
•
•
•
•
•
••
•
B
•
7
7-1-2.Display of Remote Control
All indications, except for the clock time indicator, are displayed by pressing the button.
1. Transmission mark
This transmission mark indicates when the
remote controller transmits signals to the indoor
unit.
2. Mode indicator
Indicates the current operation mode.
(AUTO, COOL, DRY and AUTO FAN)
3. Temperature indicator
Indicates the temperature setting.
(17°C to 30°C)
4. ECO indicator
Indicates when the ECO is in activated.
Press the ECO button to start and press it again
to stop operate.
5. A, B change indicator remote controller
When the remote controller switching function is
set, "B" appears in the remote controller display
(When the remote controller seting is "A", there is
no indication at this position.)
8
7
FILE NO. SVM-08028
−14 −
5
6. Swing
Indicate when louver is swing.
Press swing button to start the swing operation
and press it again to stop the swing operation.
7. FAN speed indicator
Indicates the selected fan speed.
AUTO, QUIET or three fan speed levels
( LOW , MED , HIGH can be shown.
Indicate Auto will be appear with Dry operation
only.
8. ON/OFF TIMER indicator
Indicates when the ON/OFF TIMER operation.
(ON TIMER [Hr. ON], OFF TIMER [OFF]).

7-2-1. 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 microcomputer, 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 [FIX] button is pressed, it stops
swinging.
7-2-2. Indoor Fan Control
The operation controls the fan speed at indoor unit
side. The indoor fan (cross flow fan) is operated by
the phase control induction motor. The fan rotates in 3
stages in MANUAL model, and in 5 stages in AUTO
mode, respectively. (Table 7-2-1)
1) When setting the fan speed to L, M or H on
the remote controller, the operation is performed
with the constant speed shown in Fig. 7-2-1.
7-2.Outline of Air Conditioner Control
This is a fixed capacity type air conditioner, which uses
a AC motor for an indoor fan.The AC motor drive
circuit is mounted in the indoor unit. And electrical
parts which operate the compressor and the outdoor
fan motor, are mounted in the outdoor unit.
The air conditioner is mainly controlled by the indoor
unit controller.The controller operates the indoor fan
motor based upon commands transmitted by the
remote control and transfers the operation commands
to the outdoor unit controller.
The outdoor unit receives operation commands from
the indoor unit, and operates the outdoor fan motor
and the compressor.
(1) Role of indoor unit controller
The indoor unit controller receives the operation
commands from the remote control and executes
them.
• Temperature measurement at the air inlet of the
indoor heat exchanger by the indoor
temperature sensor
•Temperature measurement of the indoor heat
exchanger by the heat exchanger sensor
•Louver motor control
•Indoor fan motor operation control
•LED display control
•Transferring of operation commands to the
outdoor unit
•Receiving of information of the operation status
and judging of the information or indication of
error
(2) Role of outdoor unit controller
The outdoor unit controller receives the operation
commands from the indoor controller and
executes them.
•Compressor operation
control
•Operation control of
outdoor fan motor
•Turning off the compressor and outdoor fan
when the outdoor unit receives the shutdown
command
Operations according
to the commands
from the indoor unit
L
M
Low
Med
High
Indication Fan speed
the setup temperature, room temperature, and heat
2) When setting the fan speed to AUTO on the remote
controller, revolution of the fan motor is controlled
to the fan speed level shown in Table 1 according to
exchanger temperature.
Fig (7-2-1)
UH HM+ML+ LL- UL SUL
UH H M+ M L+ L L- UL SUL
fan speed (rpm)
Air flow (m3/h)
fan speed (rpm)
Air flow (m3/h)
Dry
Cool
Fan speed level
Model
RAS-07SKSX-1
RAS-09SKSX-1
Table 7-2-1 Indoor fan and air flow rate
FILE NO. SVM-08028
1300 1300 1300 1300 1250 1150 1100 950 950 900 800 750 700 650 500
540 540 540 540 510 470 440 370 370 350 300 270 250 220 150
1350 1350 1350 1300 1250 1180 1140 1000 980 980 900 800 750 700 550
560 560 560 540 510 500 460 400 390 390 350 300 270 250 180
−15 −
OPERATION
MODE
3) When setting the fan speed to QUIET on the remote
controller, revolution of the fan motor is controlled
to the fan speed level is L-.
H

7-3.Description of Operation Mode
(1) When turning on the breaker, the operation lamp
blinks.This means that the power is on (or the
power supply is cut off.)
(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 microcomputer so that the previous operation
can be effected thereafter simply by pressing
[] button.
7-3-1. 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. 7-3-1.When
[FAN] button is set to LOW, MED,or HIGH
the motor operates with a constant air flow.
7-3-2. Cooling operation
([MODE] button on the remote control is set
to the cooling operation.)
(1) The compressor, outdoor fan and operation
display lamp are controlled as shown in
Fig. 7-3-2.
Fig. 7-3-2
(2) When [FAN] button is set to AUTO, the indoor fan
motor operates as shown in Fig. 7-3-5.When
[FAN] button is set to LOW, MEDor HIGH
the motor operates with a constant air flow.
*1
*2
*3
+3
+2.5
+2
+1.5
+1
+0.5
-0.5
0
M+
Preset
temp.
°C
(Room temp.) −(Preset temp.)
(Preset temp.: 24 °C)
+2
+2.5
+3
°C
+1.5
+1
+0.5
0
M+
*1
*2
*3
(Room temp.) −(Preset temp.)
Preset
temp.
Fig. 7-3-1Setting of air flow [FAN:AUTO]
NOTE2 : ECO operation can not be set.
Fig. 7-3-3Setting of air flow [FAN:AUTO]
*2 : Fan speed = (M + -L) x 2/4 + L
NOTE1 : *1 : Fan speed = (M + -L) x 3/4 + L
*3 : Fan speed = (M + -L) x 1/4 + L
*2 : Fan speed = (M + -L) x 2/4 + L
NOTE1 : *1 : Fan speed = (M + -L) x 3/4 + L
*3 : Fan speed = (M + -L) x 1/4 + L
(Linear approximation
from M+ and L)
(Linear approximation
from M+ and L)
FILE NO. SVM-08028
−16 −
0.5
°C
0
Preset
temp.
ON ON
OFF OFF ON
Compressor
Outdoor fan
OPERATION
display
(Room temp.) (Presettemp.)
-

7-3-3. Dry operation
([MODE] button on the remote control is set
to the dry operation.)
(1) The compressor, outdoor fan and operation
display on the remote control are controlled
as shown in Fig. 7-3-4.
Fig. 7-3-4
(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. 7-3-5.
Fig. 7-3-5
(3) [FAN] button on the remote control is set to AUTO
only.
(4) The ECO operation cannot be set.
Room temp.
Preset temp.+1
Preset temp.
Compressor
Outdoor fan
Indoor fan L
* SL SL
LLSL L
ON ON ON ON
OFF OFF OFF
* Super Low
Preset
temp.
ON
+3
°C
+2
+1
0
OFF
Outdoor fan
OPERATION
display
Compressor
ON:6min. OFF:4min.
ON:5min. OFF:5min.
OFF
ON:6min. OFF:4min.
ON:5min. OFF:5min.
(Room temp.) (Preset temp.)
-
7-3-4.Automatic operation
([MODE] button on the remote control is set
to the automatic operation.)
(1) One of 2 operations (Cooling or Fan only)
is selected according to difference between the
preset temperature and the room temperature at
which the automatic operation has started, as
shown in Fig. 7-3-6. 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. 7-3-6.
Fig. 7-3-6
(Room temp.) (Preset temp.)
°C
0
Cooling operation
Fan only operation
-
7-4.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. 7-4-1
Fig. 7-4-1
Fig. 7-3-2
OFF
5
(°C)
2
Compressor Outdoor fan
ON
Less than 2°C continues
for 5 minutes
OFF
Heat exchanger
temperature
−17 −
FILE NO. SVM-08028

–18 –
Operation
Press [RESET] button for more than
three seconds.(Less than 10 seconds)
Motions
The unit is on standby.
↓
The unit starts to operate. The green indicator is on.
↓After approx.three seconds,
The unit beeps three times The green indicator flashes
and continues to operate. for 5 seconds.
If the unit is not required to operate at this time, press [RESET]
button once more or use the remote controller to turn it off.
Operation
Press [RESET] button for more than
three seconds.(Less than 10 seconds)
Motions
The unit is in operation. The green indicator is on.
↓
The unit stops operating. The green indicator is turned off.
↓After approx.three seconds,
The unit beeps three times. The green indicator flashes
for 5 seconds.
If the unit is required to operate at this time, press [RESET] button
once more or use the remote controller to turn it on.
7-5. Auto Restart Function
This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with
the set operating conditions in the event of a power supply being accidentally shut down.
The operation will resume without warning three minutes after power is restored.
This function is not set to work when shipped from the factory. Therefore it is necessary to set it to work.
7-5-1. How to Set the Auto Restart Function
To set the auto restart function, proceed as follows:
The power supply to the unit must be on ; the function will not set if the power is off.
Press the [RESET] button located in the center of the front panel continuously for three seconds.
The unit receives the signal and beeps three times.
The unit then restarts operating automatically in the event of power supply being accidentally shut down.
•When the unit is standby (Not operating)
•When the unit is in operation
•While the filter check indicator is on, the RESET button has the function of filter reset betton.
FILE NO. SVM-08028
RESET button
RESET button

–19 –
Operation
Press [RESET] button for more than
three seconds.(Less than 10 seconds)
Motions
The unit is on standby.
↓
The unit starts to operate. The green indicator is on.
↓After approx.three seconds,
The unit beeps three times and continues to operate.
If the unit is not required to operate at this time, press [RESET]
button once more or use the remote controller to turn it off.
Operation
Press [RESET] button for more than
three seconds.(Less than 10 seconds)
Motions
The unit is in operation. The green indicator is on.
↓
The unit stops operating. The green indicator is turned off.
↓After approx.three seconds,
The unit beeps three times.
If the unit is required to operate at this time, press [RESET] button
once more or use the remote controller to turn it on.
7-5-2. How to Cancel the Auto Restart Function
To cancel auto restart function, proceed as follows :
Repeat the setting procedure : the unit receives the signal and beeps three times.
The unit will be required to be turned on with the remote controller after the main power supply is turned off.
•When the system is on stand-by (not operating)
•When the system is operating
7-5-3. Power Failure During Timer Operation
When the unit is turned off because of power failure
during timer operation, the timer operation is can-
celled. In that case, set the timer operation again.
NOTE :
The EverydayTimer is reset while a command signal
can be received from the remote controller even if it
stopped due to a power failure.
FILE NO. SVM-08028
RESET button
RESET button