Samsung SH18AS0 User manual

INDOOR UNIT
SH18AS0
SH24AS6
OUTDOOR UNIT
SH18AS0X
SH24AS6X
SERVICE Manual
CONTENTSAIR CONDITIONER
1. Product Specifications
2. Operating Instructions
3. Disassembly and Reassembly
4. Refrigerating Cycle Diagram
5. Set Up the Model Option
6. Exploded Views and Parts List
7. PCB Diagram
8. Wiring Diagram
9. Schematic Diagram
ROOM AIR CONDITIONER
DB98_15968A(1)_co 11/25/03 1:53 PM Page 3

1Samsung Electronics
1. Product Specifications
1-1 Table
Model
Item
Power Source
Capacity kW
Air Circulation (High) mm2/min
Moisture Removal (High) Liters/h
Available Voltage Range V
Running Amperes A
Power Input kW
Power Factor %
Energy Efficiency Ratio W/W
Compressor Locked Rotor Amperes A
Controls / Temperature Control
Control Unit
Timer
Fan Speed
Airflow Direction (indoor) Horizontal
Vertical
Compressor
Refrigerant / Amount Charged at Rating (R410a)
Refrigerant Control
Operation Sound Indoor Hi/Mi/Low dB-A
Outdoor-Hi dB-A
Refrigerant Tubing Connections
Max. Allowable Tubing Length m
Refrigerant Tube Diameter
Narrow Tube (in.)
Wide Tube (in.)
Refrigerant Tube Kit / Accessories
Height mm
Unit Dimensions Width mm
Depth mm
Height mm
Package Dimensions Width mm
Depth mm
Weight Net kg
Shipping kg
SH18AS0
Cool Heat
220-240V~,50Hz
5.1 5.8
13.0 13.5
2.5
198~264
8.3 8.1
1.81 1.80
94.8 96.6
2.81 3.22
40
Microprocessor / Thermistor
Wireless remote control
24-Hour ON or OFF
3 Steps and Turbo / 2 Step
Manual
Auto
Rotary(Samsung)
1,250g
Capillary tube
48 / 46 / 44
58
Flare type
15
6.35(1/4")
12.70(1/2")
Optional / Hanger-plate
Indoor unit Outdoor unit
215 620
1,080 787
205 320
284 692
1,151 909
398 444
13 45
16 50
Features
Dimensions
&
Weight
Electrical
Rating
Performance
SH24AS6
Cool Heat
220-240V~,50Hz
6.8 7.0
14.0 14.5
3.0
198~264
10.8 11.2
2.42 2.49
97.4 96.7
2.81 2.81
58
Microprocessor / Thermistor
Wireless remote control
24-Hour ON or OFF
3 Steps and Turbo / 2 Step
Manual
Auto
Rotary(Samsung)
1,550g
Capillary tube
48 / 46 / 44
61
Flare type
20
6.35(1/4")
15.88(5/9")
Optional / Hanger-plate
Indoor unit Outdoor unit
215 638
1,080 880
205 310
284 704
1,151 1,023
398 413
13 63
16 68
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Samsung Electronics2
1-2 Pressure Graph
■18K BTU
20
10
9
8
7
625 30 35 40 45
20
10
32.4/24.0
30.6/22.5
28.8/21.0
27.0/19.0
24.0/17.0
21.5/15.0
32.4/24.0
30.6/22.5
28.8/21.0
27.0/19.0
24.0/17.0
21.5/15.0
9
8
7
625 30 35 40 45
Outdoor inlet air D.B. temp(˚C)
Low pressure(kg/cm2G)
Indoor inlet air D.B. temp(˚C)
■24K BTU
Outdoor inlet air D.B. temp(˚C)
Low pressure(kg/cm2G)
Indoor inlet air D.B. temp(˚C)
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3Samsung Electronics
2. Operating Instructions
2-1 The Feature of Key in remote control
FUNCTION OF KEYNAMED OF KEYNo
1
2
3
4
5
6
7
8
9Energy Saving button.
If you wish to save energy when using your air conditioner, select the Energy saving mode
with the button.
Fan speed adjustment button.
Each time you press this button,
FAN SPEED is changed in the following order.
Turbo/Sleep mode selection button.
Press the button one or more times until appears. The sleep timer can be used
when you are cooling or heating your room to switch the air conditioner off
automatically after a period of 6 hours.
Temperature adjustment button(DOWN).
To decrease the temperature by the pressing the temperature button.
(DOWN)
On/Off & Timer Set/Cancel button.
Press the button to stop and run the air conditioner or On/Off timer set up.
Turbo/Sleep mode selection button.
Press the button one or more times until appears. The air conditioner cools or heats
the room as quickly as possible. After 30minutes, the air conditioner is reset automatically to
the previous mode.
(UP)
Swing button.
It adjusts the airflow to upward and downward.
Mode selection button.
Each time you press this button,
Mode is changed in the following order.
: Auto Mode : Fan Only
: Cool Mode : Heat Mode
: Dry Mode
Temperature adjustment button(UP).
To increase the temperature by the pressing the temperature button.
On Timer button.
The On Timer enables you to switch on the air conditioner automatically after a given period
of time that is from 30 minutes to 24 hours.
To cancel, press the (Set/Cancel) button.
Off Timer button.
The Off Timer enables you to switch off the air conditioner automatically after a given period
of time that is from 30 minutes to 24 hours.
To cancel, press the (Set/Cancel) button.
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Samsung Electronics4
Operating Instructions
1. AUTO MODE : In this mode, operation mode(COOL,
HEAT) is selected automatically by the room temperature
of initial operation.
∆T= -1°C, -2°C, 0°C, +1°C, +2°C
∆T is controlled by setting temperature up/down key of
remote control
2. COOL MODE : The unit operates according to the
difference between the setting and room temperature.
(18°C~30°C)
3. HEAT MODE : The unit operates according to the
difference between the setting and room temperature.
(16°C~30°C)
*Prevention against cold wind : In order to prevent the
cool air from flowing out at the heat mode, the indoor fan
does not operate or operates very slowly in the
following cases. At this time, the indoor heat exchanger
will be preheating.
- For 3~5 minutes after the initial operation
- For deicing operation
- The operation of an indoor fan in accordance with the
temperature of an indoor heat exchanger
*High temperature release function : It is a function to
detect an outdoor overload by the sensor of an indoor
heat exchanger and to turn the outdoor fan or the
compressor ON/OFF for safety.
*Deice : Deicing operation is controlled by indoor unit's
heat exchanger temperature and accumulating time of
compressor's operation.
Deice ends by sensing of the processing time by deice
condition.
4. DRY MODE : Has 3 states, each determined by room
temperature.
The unit operates in DRY mode.
*Compressor ON/OFF Time is controlled compulsorily
(can not set up the fan speed, always breeze).
*Protective function : Low temperature release.
(Prevention against freeze)
5. TURBO MODE : This mode is available in AUTO, COOL,
HEAT, DRY, FAN MODE.
When this button is pressed at first, the air conditioner is
operated “powerful” state for 30 minutes regardless of the
set temperature, room temperature.
When this button is pressed again, or when the operating
time is 30 minutes, turbo operation mode is canceled
and returned to the previous mode.
*But, if you press the TURBO button in DRY or FAN
mode that is changed with AUTO mode automatically.
6. SLEEP MODE : Sleep mode is available only in COOL or
HEAT mode.
The operation will stop after 6 hours.
*In COOL mode : The setting temperature is automatical-
ly raised by 1°C each 1hour When the temperature
has been raised by total of 2°C, that temperature is
maintained.
*In HEAT mode : The setting temperature is automatical-
ly dropped by 1°C each 1hour.
When the temperature has been dropped by total of
2°C, that temperature is maintained.
7. FAN SPEED : Manual (3 step), Auto (4 step)
Fan speed automatically varies depending on both the
difference between setting and the room temperature.
8. COMPULSORY OPERATION :
For operating the air conditioner without the remote
control.
*The air conditioner starts up in the most suitable mode
for the room temperature:
2-1-1 Name & Function of Key in remote control
Room Temp
Tr≥21°C+∆T
21°C +∆T>Tr
Operation Type
Cool Operation (Set Temp:24˚C+∆T)
Heat Operation (Set Temp:22˚C+∆T)
below 28˚C
28˚C~below 34˚C
34˚C~below 40˚C
above 40˚C
The temperature of
indoor heat exchanger Indoor fan speed
off
LL Speed
L Speed
Setting Speed
Room Temperature
Less than 21˚C
21˚C or above
Operating Mode
Heat
Cool
Temperature Setting
22˚C approx.
24˚C approx.
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Operating Instructions
5Samsung Electronics
9. SWING : BLADE-H is rotated vertically by the stepping
motor.
*Swing Set : Press the button under the remote
control is displayed on LCD the and the blades
move up and down. If the one more time press the
button, blades location is stop.
10. SETTING THE ON/OFF TIMER. :
*ON TIMER : The On Timer enables you to switch on
the air conditioner automatically after a given period of
time. You can set the period of time from 30 minutes to
24 hours.
*OFF TIMER : The Off Timer enables you to switch off
the air conditioner automatically after a given period of
time. You can set the period of time from 30 minutes to
24 hours.
11. SELF DIAGNOSIS
12. BUZZER SOUND : Whenever the On/Off button is
pressed or whenever change occurs to the condition
which is set up or select, the compulsory operation
mode, buzzer is sounded "beep".
Indoor unit room temperature sensor
error(open or short)
Description
LAMP or DISPLAY Monitor
OPERATION TIMER TURBO
: Lamp flickering
: Lamp off
Indoor unit heat exchanger
temperature sensor error(open or short)
Indoor fan motor malfunction
EEPROM error
Option error(option wasn’t set up or
option data error)
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Samsung Electronics6
2-2 Installation
2-2-1 Selecting Area for Installation
Select an area for installation that is suitable to the cus-
tomer's needs.
2-2-1(a) Indoor Unit
1. Make sure that you install the indoor unit in an area pro-
viding good ventilation. It must not be blocked by an
obstacle affecting the airflow near the air inlet and the air
outlet.
2. Make sure that you install the indoor unit in an area
allowing good air handling and endurance of vibration of
the indoor unit.
3. Make sure that you install the indoor unit in an area
where there is no source of heat or vapor nearby.
4. Make sure that you install the indoor unit in an area from
which hot or cool air is spread evenly in a room.
5. Make sure that you install the indoor unit in an area away
from TVs, audio units, cordless phones, fluorescent light-
ing fixtures and other electrical appliances (at least 1
meter).
6. Make sure that you install the indoor unit in an area
which provides easy pipe connection with the outdoor
unit, and easy drainage for condensed water.
7. Make sure that you install the indoor unit in an area
which is large enough to accommodate the measure-
ments shown in figure on the next page.
2-2-1(b) Outdoor Unit
1. Make sure that you install the outdoor unit in area not
exposed to the rain or direct sun light.
(Install a separate sunblind if exposed to direct sun light.)
2. Make sure that you install the outdoor unit in area allow-
ing good air moment, not amplifying noise or vibration,
especially to avoid disturbing neighbors. (Fix the unit
firmly if it is mounted in a high place.)
3. Make sure that you install the outdoor unit in area provid-
ing good ventilation and which is not dusty. It must not
be blocked by any obstacle affecting the airflow near the
air inlet and the air outlet.
4. Make sure that you install the outdoor unit in area free
from animals or plants.
5. Make sure that you install the outdoor unit in area not
blocking the traffic.
6. Make sure that you install the outdoor unit in area easy to
drain condensed water from the indoor unit.
7. Make sure that you install the outdoor unit in area which
provides easy connection within the maximum allowable
length of a coolant pipe(18✳✳:15meters, 24✳✳:20meters).
8. Make sure that you install the outdoor unit in an area
which is large enough to accommodate the measure-
ments
2-2-1(c) Remote Control Unit
1. Make sure that you install the remote control unit in an
area free from obstacles such as curtains etc, which may
block signals from the remote control unit.
2. Make sure that you install the remote control unit in an
area not exposed to direct sunlight, and where there is no
source of heat.
3. Make sure that you install the remote control unit in an
area away from TVs, audio units, cordless phones, fluo-
rescent lighting fixtures and other electrical appliances (at
least 1 meter).
Note
1. Add (18✳✳: 20g, 24✳✳: 30g) of refrigerant (R410a) for
every 1 meter if the pipe length exceeds the standard
pipe length of 7.5 meters.
2. Maintain a height between the indoor and outdoor units
of less than 8 meters.
• It is harmful to the air conditioner if it is used in the following environments: greasy areas (including areas near
machines), salty areas such as coast areas, areas where sulfuric gas is present such as hot spring areas.
Contact your dealer for advice.
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7Samsung Electronics
3. Disassembly and Reassembly
3-1 Indoor Unit
Stop operation of the air conditioner and remove the power cord before repairing the unit.
No Parts Procedure Remark
1 Front Panel 1) Stop the air conditioner operation and block
the main power.
2) Detach tape of Front Panel upper.
3) Slide the lower Front Grille down, then
disassemble it by pulling it forwards.
4) Open the upper Front Grille by pulling right
and left sides of the Grille.
5) Take the left and right Filter out.
6) Loosen one of the right screw and detach
the Terminal Cover.
7) Detach the thermistor from the Front Grille.
8) Loosen 5 fixing screws of Front Grille.
9) Pull the lower left and right of discharge
softly for the outside cover to be pulled out.
10) In order to disassemble the Panel Grille,
press, in order, the left, center, and right of
the upper side of the Panel Grille with the
palm of the hand to remove the hook.
And then disassemble the Panel Grille.
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Disassembly and Reassembly
Samsung Electronics8
No Parts Procedure Remark
2
3
4
Electrical Parts
(Main PCB)
Tray Drain
Heat Exchanger
1) Take all the connector of PCB upper side
out.(Including Power Cord)
2) Detach the outdoor unit connection wire
from the Terminal Block.
3) If pulling the main PCB up. It will be taken
out.
1) Detach the Drain Hose from the extension
Drain Hose.
2) Pull Tray Drain out from the Back Body.
1) Loosen 2 fixing earth screws of right side.
2) Detach the Connection Pipe.
3) Detach the Holder Pipe at the rear side.
4) Loosen 2 fixing screws of right and left
side.
5) Lifting the Heat Exchanger up a little
to push the up side for detach from the
indoor unit.
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Disassembly and Reassembly
9Samsung Electronics
No Parts Procedure Remark
5 Fan Motor and
Cross Fan 1) Loosen the 4 fixing screws and detach
the Motor Holder.
2) Loosen 1 fixing screw of Fan Motor.
(By use of M3 wrench)
3) Detach the Fan Motor from the Fan.
4) Detach the Fan from the left Holder
Bearing.
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Samsung Electronics10
3-2 Outdoor Unit
No Parts Procedure Remark
1
2
Cabinet
Fan Motor
&
Propeller Fan
1) Turn off the unit and remove the power
cable.
2) Detach the Top Cover.
3) Detach the Control Box Cover.
4) Unplug the Ass'y Cable.
5) Detach the Cabinet-Side.
6) Detach the Cabinet-Front.
* When you assemble the parts, check if the
each parts and Component Electric Box
are fixed firmly.
1) Detach the Nut Flange.
(Turn to the clockwise)
2) Disassemble the Propeller Fan.
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11Samsung Electronics
4. Refrigerating Cycle Diagram
Indoor Unit Outdoor Unit
T1
T2
2-Way valve
3-Way valve
Gas side
Heat
exchanger
(Evaporator)
Heat
exchanger
(Evaporator)
Liquid side
Capillary tube
4-Way valveCooling
Heating
Gas leak check point
Compressor
Cross fan
Propeller fan
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Samsung Electronics12
5. Set Up the Model Option
5-1 Setting Option Setup Method
ex) Option No. :
Step 1 : Enter the Option Setup mode.
1st Take out the batteries of remote control.
2nd Press the temperature button simultaneously and
insert the battery again.
3rd Make sure the remocon display shown as .
Step 2 : Enter the Option Setup mode and select your option according to the following procedure.
1
2
3
4
5
6
1
2
The default value is .
Otherwise, push the button to .
Every time you push the button, the display panel reads or
repeatedly.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
✳Setting is not required if you must
a value which has a default.
3
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
4
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
5
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
6
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
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Set Up the Model Option
13Samsung Electronics
7
8
9
10
11
12
7
8
Press button, then the default value is .
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
✳Setting is not required if you must
a value which has a default.
9
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
10
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
11
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
12
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
Step 3 : Upon completion of the selection, check you made right selections.
Press the Mode Selection key, to set the display part to and check the display part.
The display part shows .
Press the Mode Selection key, to set the display part to and check the display part.
The display part shows .
Step 4 : Press the ON/OFF button .
When pressing the operation ON/OFF key with the direction of remote controller for unit, the sound "Ding" or "Diriring" is
heard and the OPERATION LED lamp is flickering at the same time, then the input of option is completed.
(If the diriring sound isn’t heard, try again pressing the ON/OFF button.)
Step 5 : Unit operation test-run
First, Remove the battery from the remote controller.
Second, Re-insert the battery into the remote controller.
Third, Press ON/OFF button( ) with the direction of remote controller for set.
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Set Up the Model Option
Samsung Electronics14
■ OPTION ITEMS
REMOCON
MODEL SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12
SH18AS0
SH24AS6
0851151dA351
0854141dA384
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MEMO
15Samsung Electronics
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Samsung Electronics16
4
12
16-6
14
11
13
16-2
16-1
16-5
16-3
16-4
2
1-4
17
5
1
1-3
1-2
18
19
10
15
16
1-1
3
6
8
7
9
You can search for the updated part code
number through the ITSELF.
URL : http://itself.sec.samsung.co.kr
6. Exploded Views and Parts List
6-1 Indoor Unit
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17Samsung Electronics
Exploded Views and Parts List
■
Parts List
Q'TY
No. Code No. Description Specification Remark
SH18AS0 SH24AS6
1 DB92-00555A ASS'Y PANEL FRONT-TOTAL ASS'Y 1 1
1-1 DB92-00386A ASS'Y PANEL FRONT-SUB ASS'Y 1 1
1-2 DB63-00596B FILTER-AIR LF PP 1 1
1-3 DB63-00597B FILTER-AIR RH PP 1 1
1-4 DB64-01036A GRILLE-UP HIPS 1 1
2 DB92-00580A ASS'Y GRILLE-LOW ASS'Y 1 1
3 DB96-03071A ASS'Y EVAP-TOTAL ASS'Y 1 -
DB96-02345E ASS'Y EVAP-TOTAL ASS'Y - 1
4 DB95-00367F ASS'Y FILTER BIO ASS'Y - - OPTION
5 DB63-00594A COVER TERMINAL HIPS 1 1
6 DB94-00040J ASS'Y CROSS FAN ASS'Y 1 1
7 DB60-20011A BOLT SPECIAL - 1 1
8 DB31-10151C MOTOR-FAN IN - 1 1
9 DB93-02580A ASS'Y CONTROL IN ASS'Y 1 1
10 DB94-00531A ASS'Y BACK BODY ASS'Y 1 1
11 DB61-01136A HOLDER-MOTOR PP 1 1
12 DB93-01364B ASS'Y REMOCON ASS'Y 1 1
13 DB63-00580A COVER-IONIZER HIPS 1 1
14 DB61-01137A HOLDER-PIPE HIPS 1 1
15 DB70-00295A PLATE HANGER SGCC-M 1 1
16 DB94-00300C ASS'Y TRAY DRAIN ASS'Y 1 1
16-1 DB94-00062B ASS'Y HOSE DRAIN ASS'Y 1 1
16-2 DB61-01141A BLADE-H ABS 1 1
16-3 DB61-01142A BLADE-V PP 1 1
16-4 DB63-00699A GUARD-SAFETY WIRE - 1 1
16-5 DB31-10154A MOTOR STEP - 1 1
16-6 DB63-00598A TRAY DRAIN HIPS 1 1
17 DB67-60030A SPRING SENSOR - 1 1
18 DB73-00128A RUBBER BEARING - 1 1
19 DB94-40007A BEARING MOTOR - 1 1
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17
11
12
5
4
1
6
3
14
9
19
8
7
10
13
21
18-1
18-2 18-3
18-5
18
18-6
18-4
16
16-1
15-1
15-2
15
15-4
15-3
2
20-1 20-3
20-2 20-4
Samsung Electronics18
6-2 Outdoor Unit
■24K BTU
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19Samsung Electronics
Exploded Views and Parts List
■
Parts List
Q'TY
No. Code No. Description Specification Remark
SH24AS6X
1 DB90-01364A ASS'Y CABI-FRONT ASS'Y 1
2 DB63-00831A GUARD-FAN PP 1
3 DB90-01336A ASS'Y BASE OUT ASS'Y 1
4 DB61-01593A BRACKET VALVE P AZ 1
5 DB67-50074A FAN-PROPELLER AS+G/F20% 1
6 DB60-20020A BOLT SPECIAL M8 L25 1
7 DB31-00027E MOTOR FAN OUT OSME-906SRC 1
8 DB95-20147A ASS'Y-MOTOR B/K ASS'Y 1
9 DB94-00080C ASS'Y PARTITION ASS'Y 1
10 DB96-03080A ASS'Y COND-UNIT ASS'Y 1
11 DB90-40176B ASS'Y-COVER CONTROL ASS'Y 1
12 DB90-01350A CABINET-SIDE RH SC-90073T 1
13 DB90-01351A CABINET-SIDE LF SC-90073T 1
14 DB90-10616K ASS'Y-CABI UPPER ASS'Y 1
15 G5A240JU1EM COMPRESSOR ROTARY 1
15-1 DB73-00082A GROMMET-MOUNT EPDM 3
15-2 DB60-30028A NUT-WASHER M8 3
15-3 DB60-30018A NUT-FLANGE M5 1
15-4 DB63-10165D COVER-TERMINAL NOTYL 1
16 DB99-00391A ASS'Y-4WAY V/V ASS'Y 1
16-1 DB62-02342A PACKED V/V 5/8 1
17 DB99-00393A ASS'Y VALVE CHECK ASS'Y 1
18 DB93-02602A ASS'Y CONTROL OUT ASS'Y 1
18-1 DB34-90054A MAGNETIC CONTACTOR 41NB21ALT 1
18-2 2501-001240 CAPACITOR 50uF/450VAC 1
18-3 DB65-00040A TERMINAL BLOCK 8P 1
18-4 DB95-90026B SPARK KILLER - 1
18-5 3601-000236 FUSE 2A,250V 1
18-6 2301-001379 C-FILM, MPE-PPF 4uF/450VAC 1
19 DB62-01330A CLOTH-COMP SOUND FELT+EVA+FELT 1
20-1 DB39-20546E CONNECT WIRE-POWER - - OPTION
20-2 DB39-00171A CONNECT WIRE-ASS'Y - - OPTION
20-3 DB67-20011A DRAIN PLUG OUT PP 1
20-4 DB73-00179A RUBBER-LEG NR 4
21 DB71-00088A BAR-STEEL HSWR 1
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