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SERVICE MANUAL
AD-183A
AD-243A
CAUTION
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
Air Conditioner Service Manual
TABLE OF CONTENTS
Safety Precautions..........................................................................................................................................3
Dimensions .....................................................................................................................................................5
Symbols Used in this Manual.....................................................................................................................5
Outside Dimensions...................................................................................................................................5
Product Specifications ..................................................................................................................................6
Installation .......................................................................................................................................................7
Select the Best Location ...........................................................................................................................7
Installation Check.......................................................................................................................................7
How to Secure the Drain Pipe....................................................................................................................7
Window Requirements...............................................................................................................................8
Installation Kits Contents............................................................................................................................8
Suggested Tool Requirements ...................................................................................................................9
Cabinet Installation...................................................................................................................................10
Operation ......................................................................................................................................................12
Features...................................................................................................................................................12
Control Locations Function of Controls....................................................................................................12
Disassembly ..................................................................................................................................................14
Mechanical Parts......................................................................................................................................14
Air Handling Parts ....................................................................................................................................15
Electrical Parts .........................................................................................................................................16
Refrigerating Cycle...................................................................................................................................18
Schematic Diagram.......................................................................................................................................21
Electronic Control Device.........................................................................................................................21
Wiring Diagram.........................................................................................................................................22
Components Lation..................................................................................................................................23
Troubleshooting Guide.................................................................................................................................24
Piping System ..........................................................................................................................................24
Troubleshooting Guide .............................................................................................................................25
Room Air Conditioner Voltage Limits........................................................................................................31
2 Room Air Conditioner
Service Manual 3
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must
be followed.
■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
■ Meanings of symbols used in this manual are as shown below.
WARNING
CAUTION
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to property only.
WARNING
■ Installation
Do not use damaged power cord plugs, or a
loose socket.
• There is risk of fire or electric shock.
Always use the power plug and socket with
the ground terminal.
• There is risk of electric shock.
Be sure not to do.
Be sure to follow the instruction.
4 Room Air Conditioner
Safety Precautions
Do not modify or extend the power cord.
• There is risk or fire or electric shock.
Do not install, remove, or re-install the unit by
yourself.
• There is risk of fire, electric shock, explosion, or injury.
Be cautious when unpacking and installing
the product.
• Sharp edges could cause injury. Be especially careful
of the case edges and the fins on the condenser and
evaporator.
Do not store or use flammable gas or combustibles near the air conditioner.
• There is risk of fire or failure of product.
Be sure the installation area does not deteriorate with age.
• If the base collapses, the air conditioner could fall with
it, causing property damage, product failure, and personal injury.
Gasolin
Sharp edges
Dimensions
Dimensions
Model
Dimension
18K Btu 24K Btu
Outside Dimensions
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to the
air conditioner.
This symbol indicates special notes.
NOTICE
Symbols Used in this Manual
Service Manual 5
770
W mm(inch) 660(26") 660(26")
H mm(inch) 428(1627/32") 428(1627/32")
D mm(inch) 770(305/16")
660
770(305/16")
824
Specfications
Product Specifications
Table -1
MODELS
ITEMS
POWER SUPPLY
COOLING CAPACITY
INPUT
E.E.R
REFRIGERANT (R-22) CHARGE(g)
OPERATING INDOOR(°C)
TEMPERATURE OUTDOOR(°C)
EVAPORATOR
CONDENSER
FAN, INDOOR
FAN, OUTDOOR
FAN SPEEDS, FAN/COOLING
FAN MOTOR
RAD-183A
1Ø, 208/230V, 60Hz
17,500/18,000
1,800/1,850
9.0/8.3
720g(25.4oz)
27(DB),19(WB)
35(DB),24(WB)
2 ROW 15 STACKS
LOUVERED-FIN TYP
2 ROW 19 STACKS,LOUVERED-FIN TYPE
L-BENDING TYPE
TURBO
PROPELLER TYPE FAN WITH SLINGER-RING
3/3
6 POLES
OPERATION CONTROL
ROOM TEMP. CONTROL
AIR DIRECTION CONTROL
CONSTRUCTION
PROTECTOR COMPRESSOR
FAN MOTOR
POWER CORD
DRAIN SYSTEM
NET WEIGHT (lbs/kg)
OUTSIDE DIMENSION (inch)
(W x H x D) (mm)
WIRELESS REMOCN
THERMISTOR
VERTICAL LOUVER(RIGHT & LEFT)
HORIZONTAL LOUVER(UP & DOWN)
SLIDE IN-OUT CHASSIS
INTERNAL OVERLOAD PROTECTOR
INTERNAL THERMAL PROTECTOR
3 WIRE WITH GROUNDING
CORD-CONNECTED TYPE(ATTATCHMENT PLUG:OPTION)
DRAIN PIPE OR SPLASHED BY FAN SLINGER
137/62
26 x 16 27/32 x 30 5/16
660 x 428 x770
6Room Air Conditioner
Specfications
Product Specifications
Table -1
MODELS
ITEMS
POWER SUPPLY
COOLING CAPACITY
INPUT
E.E.R
REFRIGERANT (R-22) CHARGE(g)
OPERATING INDOOR(°C)
TEMPERATURE OUTDOOR(°C)
EVAPORATOR
CONDENSER
FAN, INDOOR
FAN, OUTDOOR
FAN SPEEDS, FAN/COOLING
FAN MOTOR
830g(29.3oz)
2 ROW 19 STACKS,LOUVERED-FIN TYPE
L-BENDING TYPE
PROPELLER TYPE FAN WITH SLINGER-RING
RAD-243A
1Ø, 208/230V, 60Hz
23,500/23,000
2,760/1,850
8.5/8.5
27(DB),19(WB)
35(DB),24(WB)
3 ROW 15 STACKS
LOUVERED-FIN TYP
TURBO
3/3
6 POLES
OPERATION CONTROL
ROOM TEMP. CONTROL
AIR DIRECTION CONTROL
CONSTRUCTION
PROTECTOR COMPRESSOR
FAN MOTOR
POWER CORD
DRAIN SYSTEM
NET WEIGHT (lbs/kg)
OUTSIDE DIMENSION (inch)
(W x H x D) (mm)
WIRELESS REMOCN
THERMISTOR
VERTICAL LOUVER(RIGHT & LEFT)
HORIZONTAL LOUVER(UP & DOWN)
SLIDE IN-OUT CHASSIS
INTERNAL OVERLOAD PROTECTOR
INTERNAL THERMAL PROTECTOR
3 WIRE WITH GROUNDING
CORD-CONNECTED TYPE(ATTATCHMENT PLUG:OPTION)
DRAIN PIPE OR SPLASHED BY FAN SLINGER
146/66
26 x 16 27/32 x 30 5/16
660 x 428 x770
7Room Air Conditioner
Service Manual 8
Installation
Installation
Select the Best Location
Installation Check
How to Secure the Drain Pipe
1.To prevent vibration and noise, make sure the unit is
installed securely and firmly.
2.Install the unit where the sunlight does not shine directly
on the unit.
3.The outside of the cabinet must extend outward for at
least 30cm and there should be no obstacles, such as a
fence or wall, within 50cm from the back of the cabinet
because it will prevent heat radiation of the condenser.
Restriction of outside air will greatly reduce the cooling
efficiency of the air conditioner.
CAUTION: All side louvers of the cabinet
must remain exposed to the outside of
the structure.
4.Install the unit a little slanted so the back is slightly lower
than the front (about 10~15mm). This will help force condensed water to the outside.
5.Install the unit from the bottom about 75~150cm above
the floor level.
The setting conditions must be checked prior to initial starting.
The following items are especially important checking points when the installation is finished.
1. Grounding wire (Green or Green and Yellow) is provided in the power cord. The green wire must be grounded.
2. Connect to a single-outlet 15A circuit.
(or 20A circuit for Electric Heater Model)
3. To avoid vibration or noise, make sure the air conditioner is installed securely.
4 Avoid placing furniture or draperies in front of the air inlet and outlet.
In humid weather, excess water may cause the BASE PAN to overflow. To drain
the water, remove the DRAIN CAP and secure the DRAIN PIPE to the rear hole of
the BASE PAN. Press the drain pipe into the hole by pushing down and away from
the fins to avoid injury.
Optional
1. Install the drain pan over the corner of the cabinet where you removed the
plug with 4 (or 2) screws.
2. Connect the drain hose to the outlet located at the bottom of the drain pan.
You can purchase the drain hose or tubing locally to satisfy your particular
needs. (Drain hose is not supplied).
3. Select the most appropriate connection from among the following figures (by
considering the hole of the unit) to fit drain pan to your own unit.
AWNING
COOLED AIR
HEAT
RADIATION
75~15cm
ABOUT 10~15mm
Over 50cm
FENCE
Drain pipe
Drain cap
Fig. 4
Fig. 3
Fig. 2
DRAIN
PAN
DRAIN HOSE
Fig. 1
CABINET
SCREW
Figure 1
9 Room Air Conditioner
Installation
Window Requirements
Installation Kits Contents
All supporting parts should be secured to firm
wood, masonry, or metal.
1. This unit is designed for installation in standard double hung windows with actual opening widths from
26" to 41".
The top and bottom window sashes must open sufficiently to allow a clear vertical opening of 18" from
the bottom of the upper sash to the window stool.
2. The stool offset (height between the stool and sill)
must be less than 1 1/4".
NOTICE
26" to 41"
18" min
Interior wall
(Without frame curtain)
Stool
26" min.
Offset
Less
than 1
Sill
Exterior
1
/4"
Left frame
curtain
Frame guide(2)
Window locking
bracket
bracket
Sill
(2)
Foam-PE
(Adhesive-Backed)
Support bracket(2)
Foam strip
(Plain-Back)
Foam-PE
(Adhesive-Backed)
Drain joint pipe
Right frame
curtain
Type A (14)
Type B (7)
Type C (5) Type D (2)
Carriage Bolt (2) Lock Nut (4)
Service Manual 10
Installation
Suggested Tool Requirements
PREPARATION OF CHASSIS
1. Remove the screws which fasten the cabinet at both
sides and at the back.
2. Slide the unit out from the cabinet by gripping the
base pan handle and pulling forward while bracing
the cabinet.
3. Cut the window sash seal to the proper length. Peel
off the backing and attach the Foam-PE to the
underside of the window sash.
4. Remove the backing from Foam-PE with 3 holes
and attach it to the bottom of the Top retainer bar.
5. Attach the Top retainer bar on the top of the cabinet
with 3 screws (Type A).
6. Insert the Frame guides into the bottom of the cabinet.
7. Insert the Frame Curtain into the Top retainer bar
and Frame guides.
8. Fasten the curtains to the unit with 10 screws
(Type A) at both sides.
Figure 2
Figure 3
Figure 4
Figure 5
Shipping screws
Foam-PE
Top retainer bar
Top retainer bar
Foam-PE
Screw
(Type A)
Frame guide
Screw(Type A)
11 Room Air Conditioner
Installation
Cabinet Installation
1. Open the window. Mark a line on the center of the
window stool between the side window stop moldings.
Loosely attach the sill bracket to the support bracket
using the carriage bolt and the lock nut.
2. Attach the sill bracket to the window sill using the
screws (Type B).
Carefully place the cabinet on the window stool and
align the center mark on the bottom front with the
center line marked window stool.
3. Using the M-screw and the lock nut, attach the support bracket to the cabinet track hole. Use the first
track hole after the sill bracket on the outer edge of
the window sill. Tighten the carriage bolt and the lock
nut. Be sure the cabinet slants outward.
CAUTION: Do not drill a hole in the
bottom pan. The unit is designed to
operate with approximately 1/2" of
water in bottom pan.
4. Pull the bottom window sash down behind the Top
retainer bar until they meet.
1. Do not pull the window sash down so tightly that the
movement of Frame curtain is restricted. Attach the
cabinet to the window stool by driving the screws
(Type B) through the cabinet into window stool.
2. The cabinet should be installed with a very slight tilt
downward toward the outside.
NOTICE
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Sill
Bracket
Carriage
Bolt
(M-Screw)
Cabinet
Track hole
Support
Bracket
Carriage bolt
and lock nut
Support
Bracket
Lock nut
Machine screw(Type D)
and lock nut
Outer edge
of window
sill
Screw(Type B)
Sill bracket
Top
retainer
bar
Window sash
Foam-PE
Cabinet
Frame curtain
Top retainer bar
Foam-PE
Window stool
Front angle
Sash track
Front Angle
Screw(Type B)
Service Manual 12
Installation
5. Pull each Frame curtain fully to each window sash
track, and pull the bottom window sash down behind
the Top retainer bar until it meets.
6. Attach each Frame curtain the window sash by using
screws (Type C.) (See Fig. 11)
7. Slide the unit into the cabinet.(See Fig. 12)
CAUTION: For security purpose, rein-
stall screws(Type A) at cabinet's
sides.
8. Cut the Foam-strip to the proper length and insert
between the upper window sash and the lower window sash.(See Fig. 13)
9. Attach the Window locking bracket with a screw
(Type C.) (See Fig. 14)
10. Attach the front grille to the cabinet by inserting the
tabs on the grille into the tabs on the front of the
cabinet. Push the grille in until it snaps into
place.(See Fig.15)
11. Lift the inlet grille and secure it with a screw (Type
A) through the front grille.(See Fig. 15)
12. Window installation of room air conditioner is now
completed. See ELECTRICAL DATA for attaching
power cord to electrical outlet.
Power Cord
Screw (Type A)
Screw
Window locking
bracket
Foam-Strip
Screw(Type C)
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
13 Room Air Conditioner
• Designed for COOLING ONLY.
• Powerful and whispering cooling.
• Slide-in and slide-out chassis for the simple instal-
lation and service.
• Side air-intake, side cooled-air discharge.
1. Cooling Only Model
• VENTILATION
The ventilation lever must be in the CLOSE position
in order to maintain the best cooling conditions.
When a fresh air is necessary in the room, set the
ventilation lever OPEN position.
The damper is opened and room air is exhausted.
Before using the ventilation feature,
make the lever, as shown. First, pull down
part to horizontal line with part .
• THERMOSTAT
Thermostat will automatically control the temperature
of the room. Select a higher number for a cooler temperature in the room. The temperature is selected by
positioning the knob to the desired position.
The 5 or 6 position is a normal setting for average
conditions.
• OPERATION
OFF : Turns the air conditioner off.
MED FAN : Permits the
medium
fan speed operation
without cooling.
LOW FAN : Permits the low fan speed operation
without cooling.
HIGH COOL: Permits cooling with the high fan speed
operation.
MED COOL : Permits cooling with the medium fan
speed operation.
LOW COOL : Permits cooling with the low fan speed
operation.
• AUTO SWING
ON : Air swing is operated while OPERATION knob is
set to the COOL position.
OFF : Stops the operation of air swing.
• Built-in adjustable THERMOSTAT
• Washable one-touch filter
• Compact size
• Reliable and efficient rotary compressor
NOTICE
Operation
Operation
Features
Control Locations Function of Controls
CLOSE VENT OPEN
6
7
8
9
5
1
2
Off On
Med
Fan
Off
Low
Fan
High
Cool
Med
Cool
Low Cool
Auto Swing
3
4
Thermostat Operation
Service Manual 14
Operation
2. Cooling Only Model with Remote Control and Touch Type
POWER BUTTON
Operation starts, when this button is pressed and stops when you press the button again.
OPERATION MODE SELECTION BUTTON
Select Cooling, or Fan or Dehumid mode with button. (Dehumid mode is not to all models.)
ON/OFF TIMER BUTTON
Set the time of starting and stopping operation. The timer is set by 1 hour.
FAN SPEED SELECTOR
Select the fan speed in three steps.
- High [F3] ➔ Low[F1] ➔ Med[F2] ➔ High[F3]... .
ROOM TEMPERATURE SETTING BUTTON
Control the room temperature within a range of 60°F to 86°F by 1°F.
ENERGY SAVER
(Available In some models)
The fan stops when the compressor stops cooling.
Approximately every 3 minutes the fan will turn on and check the room air to determine if cooling is needed.
AUTO SWING BUTTON
Control the horizontal air direcion by air swing system.
6
6
7
7
REMOTE CONTROL
DISPLAY
PRECAUTION:
The Remote Control unit will not
function properly if bright light strikes the sensor window of the air conditioner or if
there are obstacles between the Remote Control unit and the air conditioner.
RAD-183A, RAD-243A
2
2
7
7
4
4
RAD-183A
RAD-243A
3
3
8
8
1
1
3
6
5
5
6
6
Temp
Fan Speed
Timer Mode
Energy
Auto
Saver
Swing
Power
1
5
4
2
7
AUTO RESTART
In case the power comes on again after a power failure, the unit runs as previous setting operation.
15 Room Air Conditioner
Disassembly
Disassembly
Figure 17
Figure 18
Figure 19
— Before the following disassembly, CONTROL BOX set to OFF and disconnect the power cord.
Mechanical Parts
1. Front Grille
1. Open the lnlet grille upward .
2. Remove the screw that fastens the front grille.
3. Pull the front grille from the right side.
4. Remove the front grille.
5. Re-install the component by referring to the removal
procedure, above.(See Figure 17)
NOTICE
Mark " "of inlet grille means opening
direction.
2. Cabinet
1. After disassembling the FRONT GRILLE, remove the
2 screws that fasten the cabinet at both sides.
2. Remove the 2 screws that fasten the cabinet at back.
3. Pull the base pan forward. (See Figure 18)
4. Remove the cabinet.
5. Re-install the component by referring to the removal
procedure, above.
3. Control Box
1. Remove the front grille. (Refer to section 17)
2. Remove the cabinet. (Refer to section 18)
3. Remove the 2 screws that fasten the control box
cover.
4. Remove two housings that connect compressor wire
and motor wire in the control box.
5. Discharge the capacitor by placing a 20,000 ohm
resistor across the capacitor terminals.
6. Remove the 2 screws that fasten the control box.
7. Pull the control box forward completely.
8. Re-install the components by referring to the removal
procedure, above. (See Figure 19)
(Refer to the circuit diagram found on page 23 in this
manual and on the control box.)
Service Manual 16
Disassembly
Air Handling Parts
4. Cover (at the top)
1. Remove the front grille. (Refer to section 17)
2. Remove the cabinet. (Refer to section 18)
3. Remove 11 screws which fasten the brace and
covers.
4. Remove the covers and the brace. (See Fig. 20)
5. Re-install the components by referring to the
removal procedure, above.
5. Blower
1. Remove the cover. (Refer to section 20)
2. Remove the 3 screws which fasten the evaporator
at the left side and the top side.
3. Move the evaporator sideward carefully.
4. Remove the orifice from the air guide carefully.
5. Remove the clamp which secures the blower with
plier. (See Fig. 21)
6. Remove the blower with plier or your hand without
touching blades. (See Fig. 22)
7. Re-install the components by referring to the
removal procedure, above.
6. Fan
1. Remove the cabinet. (Refer to section 18)
2. Remove the brace and shroud cover.
(Refer to section 20)
3. Remove the 5 screws which fasten the condenser.
4. Move the condenser sideways carefully.
5. Remove the clamp which secures the fan.
6. Remove the fan. (See Figure 23)
7. Re-install the components by referring to the
removal procedure, above.
Figure 20
Figure 21
Figure 22
Figure 23
17 Room Air Conditioner
6. Shroud
1. Remove the fan. (Refer to section 21)
2. Remove the screw that fastens the shroud.
3. Remove the shroud. (See Figure 24)
4. Re-install the component by referring to the
removal procedure, above.
7. Motor
1. Remove the cabinet. (Refer to section 18)
2. Remove the cover control and disconnect a wire
housing in control box. (Refer to section 19)
3. Remove the blower. (Refer to section 21)
4. Remove the fan. (Refer to section 22)
5. Remove the 4 screws which fasten the motor.
(See Figure. 25)
6. Remove the motor.
7. Re-install the components by referring to the
removal procedure, above.
8. Compressor
1. Remove the cabinet. (Refer to section 18)
2. Discharge the refrigerant system using Freon
TM
Recovery System.
If there is no valve to attach the recovery system,
install one (such as a WATCO A-1) before venting
the Freon
TM
. Leave the valve in place after
servicing the system.
3. Disconnect the 3 leads from the compressor.
4. After purging the unit completely, unbrace the suction and discharge tubes at the compressor connections.
5. Remove the 3 nuts and the 3 washers which fasten the compressor.
6. Remove the compressor. (See Figure 26)
7. Re-instill the components by referring to the
removal procedure, above.
Disassembly
Electrical Parts
Figure 24
Figure 25
Figure 26
Service Manual 18
Disassembly
9. Capacitor
1. Remove the control box. (Refer to section 19)
2. Remove the knobs and the screw that fasten
control panel from control box.
3. Remove the screw that located in the front.
4. Open the bottom side of control box.
5. Remove the screw and the clamp that fastens
the capacitor.
6. Disconnect all the leads of capacitor terminals.
7. Re-install the components by referring to the
removal procedure, above. (See Figure 27)
10. Power Cord
1. Remove the control box. (Refer to section 19)
2. Open the control box. (Refer to section 25)
3. Disconnect the grounding screw from the control
box.
4. Disconnect the 2 receptacles.
5. Remove a screw which fastens the clip cord.
(See Figure 28)
6. Remove the power cord.
7. Re-install the component by referring to the
above removal procedure, above.
(Use only one ground-marked hole for ground
connection.)
8. If the supply cord of this appliance is damaged, it
must be replaced by the special cord. (The
special cord means the cord that has the same
specification marked on the supply cord attached
at the unit.)
11. Thermistor
1. Remove the control box. (Refer to section 19)
2. Unfold the control box. (Refer to section 25)
3. Disconnect the themistor terminals from main
P.W.B Assembly.
4. Remove the thermistor.
6. Re-install the components by refereing to the
above removal procedure above. (See Figure 29)
12. Synchronous Motor
1. Remove the control box. (Refer to section 19)
2. Unfold the control box. (Refer to section 25)
3. Remove the crankshaft.
4. Disconnect all the leads of the synchronous
motor.
5. Remove the 2 screws which fasten the synchronous motor. (See Figure. 30)
6. Re-install the components by referring to the
above removal procedure above.
Figure 28
Figure 27
Figure 29
Figure 30
19 Room Air Conditioner
Disassembly
Figure 31
Figure 32
Refrigerating Cycle
CAUTION: Discharge the refrigerant
system using a FreonTMRecovery
System. If there is no valve to attach the
recovery system, install one (such as a
WATCO A-1) before venting the FreonTM.
Leave the valve in place after servicing
the system.
13. Condenser
1. Remove the cabinet. (Refer to section 18)
2. Remove the 4 screws that fasten the brace.(Refer
to section 20)
3. Remove the 5 screws that fasten the condenser
and shroud.
4. After discharging the refrigerant completely,
unbraze the interconnecting tube at the condenser
connections.
5. Remove the condenser.
6. Re-install the component by referring to notes.
(See Figure 31)
14. Evaporator
1. Remove the cabinet. (Refer to section 18)
2. Remove the 2 screws that fasten the evaporator.
3. Move the evaporator sideways carefully.
(Refer to section 20)
4. After discharging the refrigerant completely,
unbraze the interconnecting tube at the evaporator
connections.
5. Remove the evaporator.
6. Re-install the component by referring to notes.
(See Figure 32)
15. Capillary Tube
1. Remove the cabinet. (Refer to section 18)
2. After discharging the refrigerant completely,
unbraze the interconnecting tube at the capillary
tube.(See caution above)
3. Remove the capillary tube.
4. Re-install the component by referring to notes.
Service Manual 20
Disassembly
— Replacement of the refrigeration cycle.
1. When replacing the refrigeration cycle, be sure to
Discharge the refrigerant system using a Freon
TM
recovery System.
If there is no valve to attach the recovery system,
install one (such as a WATCO A-1) before venting
the FreonTM. Leave the valve in place after
servicing the system.
2. After discharging the unit completely, remove the
desired component, and unbraze the pinch-off
tubes.
3. Braze service valves into the pinch-off tube ports,
leaving the valves open.
4. Braze the pinch-off tubes with Service valves.
5. Evacuate as follows.
1) Connect the vacuum pump, as illustrated figure
33A.
2) Start the vacuum pump, slowly open manifold
valves A and B with two full turns counterclockwise
and leave the valves open.
The vacuum pump is now pulling through valves
A and B up to valve C by means of the manifold
and entire system.
CAUTION: If high vacuum equip-
ment is used, just crack valves A
and B for a few minutes, then open slowly
with the two full turns counterclockwise.
This will keep oil from foaming and being
drawn into the vacuum pump.
3) Operate the vacuum pump vaccum for 20 to 30
minutes, until 600 microns of vaccum is obtained.
Close valves A and B, and observe vacuum gauge
for a few minutes. A rise in pressure would indicate a possible leak or moisture remaining in the
system. With valves A and B closed, stop the vacuum pump.
4) Remove the hose from the vacuum pump and
place it on the charging cylinder. See figure 33B.
Open valve C.
Discharge the line at the manifold connection.
5) The system is now ready for final charging.
6. Recharge as follows :
1) Refrigeration cycle systems are charged from the
High-side. If the total charge cannot be put
in the High-side, the balance will be put in the
suction line through the access valve which you
installed as the system was opened.
2) Connect the charging cylinder as shown in figure
33B.
With valve C open, discharge the hose at the manifold connection.
3) Open valve A and allow the proper charge to
enter the system. Valve B is still closed.
4) If more charge is required, the high-side will not
take it. Close valve A.
5) With the unit running, open valve B and add the
balance of the charge.
a. Do not add the liquid refrigerant to the Low-
side.
b. Watch the Low-side gauge; allow pressure to
rise to 30 lbs (0.2Mp).
c. Turn off valve B and allow pressure to drop.
d. Repeat steps b. and c. until the balance of the
charge is in the system.
6) When satisfied the unit is operating correctly,
use the pinch-off tool with the unit still running
and clamp on to the pinch-off tube. Using a tube
cutter, cut the pinch-off tube about 2 inches from
the pinch-off tool. Use sil-fos brazing rod and braze
pinch-off tube closed. Turn off the unit, allow it to
set for a while, and then test the leakage of the
pinch-off connection.
NOTICE
21 Room Air Conditioner
Disassembly
Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin-off tool capable
of making a leak-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve.
A
COMPOUND GAUGE
EVAPORATOR
(LOW PRESSURE SIDE)
COMPRESSOR
CAPILLARY TUBE
CONDENSER
(HIGH PRESSURE SIDE)
SEE INSETS
BELOW
MANIFOLD
GAUGE
B
Figure 33A-Pulling Vacuum
Figure 33B-Charging
A
B
EXTERNAL
VACUUM PUMP
A
CHARGING
CYLINDER
LOW
HI
B
C
Service Manual 22
Schematic Diagram
Schematic Diagram
Electronic Control Device
WP
Vcc
Digit3 (Scan3)
Digit4 (Scan4)
Digit1 (Scan1)
Digit2 (Scan2)
Digit0 (Scan0)
MAIN POWER
COMP
HERM
FAN
C
CAPACITOR
MOTOR
FAN
120 1/2W
ZNR01J
TVR14271
250V/T3.15A
FUSE
G4A-1A-E-LG
RY-COMP
1000
D02D~D05D
1N4004
35V
D03D
D02D
POWER TRANS
1
2
7
4
D05D
+
D04D
C01D
R01J
CN-WOR
C01J
0.1/275V
CN-BK
CN-BL
CN-RD
RY-HI
RY-LOW
RY-MED
C06D
5V
0.01
0.1
50V
16V
1000
10V
0.01
50V
50V
C04D
12V
IC01D
C03D
C02D
7812
O
I
+
220
C05D
O
IC02D
7805
+
I
C01L
680pF
1K
ULN2004A
IC01G
R01L
5V
1K
R01E
20
R02E
20K
R12F
10K
R02F
0.001
C02F
R01F
10K
C01F
0.001
ROOM-TH
PIPE-TH
SYNC
S/V-
4WAY
MOTOR
3
14
RY-SYNC
RY-4WAY
CN-4WAY
11
33
11
CN-SYNC
33
12V
RY-HI
RY-MED
ULN2004A
IC01M
9
15
16
821
12V
4
4
3
2
OR1H
RY-SYNC
RY-LOW
RY-4WAY
RY-COMP
111213
654107
OR2H
5V
12.1K
R21H
R03H
0K
12.1K
1%
1%
R22H
HVB
KEY1
LED out2
LED out1
LED out0
34 35 36
LED out3
Receiver
30
Buzzer
333231
HI
MED
ION
292827
SLIDE SW
40
KEY0
37 38 39
VDD
SEG-g
41 42 43
SEG-f
SEG-e
44
SEG-d
TMP87CH47U
MICOM
4
SEG-b
SEG-a
SEG-c
321
765
Room TH
Option2
Option1
Pipe TH
232625
24
SYNC
LOW
4WAY
COMP
202122
/Reset
Osc out
Osc in
16
VAref
VSS
1819 17 131415
TEST
11
SCL
SDA
10
9
8
Tx
12
Rx
5V
A1
3
4
GND SDA
SCL
A2
A0
1
2
EEPROM
24LC01BT
SMW250-04
1
1
2
2
CN-TH1
5V
R01B
R02H
R01H
1%
6.2K
1%
12.1K
RT8.00MG
1M
OSC01B
50V
C01A
0.01
+
C02A
1uF
50V
3
20K
R01A
6
10
AIR PURIFIER
150
R07G
710
8
9
12V
16
2
12
15
3
6
150
150
150
150
150
R03G
314
512
6 11
4 13
R05G
R06G
150
R04G
116
2 15
R01G
R02G
11
10
7
8
9
8
9
10
A/RESTART
12
6
7
11
14
13
4
5
A/SWING
g
E/SAVER
+
88 SEGMENT
GND
RECEIVER
BZ01E
-4002
PKM13EPY
Vout
Vcc
8
10V
5V
220
C22L
d d
DEFROST
f
c
FAN
DRY/HEAT
TIMER
7
1
e
f
e
2
3
d
COOL
4
5
b
Digit1
a
b
f
b
cc
e
g g
a a
Digit0
5V
5V
17
1
17
1
D03F
5V
ENERGY
SAVER
SW3
D07F
TEMP UP
SW7
1K
R04P
6
5
20K
20K
R02P
8
7
R03P
5V
A101S
D02F
TIMER
SW2
D01F
FAN
SW1
TEMP DOWN
D05F
SW5
MODE
D04F
SW4
D08F
AUTO SWING
SW8
SW6
ON/OFF
D06F
14
4
2
16
3
15
A101S
Q03G
A101S
Q02G
5
13
Q01G
A101S
1
IC01A
S7136
2
3.6V
5V
Q04G
CN-DISPCN-DISP
23 Room Air Conditioner
Schematic Diagram
Wiring Diagram
WH(BL)
POWER INPUT
BK(BR)
(Ribbed) (Plain)
GN/YL
(GN)
GN/YL(GN)
THERMISTOR
BK BK
BLRDBL
RD
CN-TH1
YL YL
OR(BR) OR(BR)
OR(BR)
SYNC
MOTOR
RY-LO
RY-HI
CN-WORK
CN-SYNC CN-DISP
DISPLAY P.W.B ASM
RY-SYNC
250V/T2A
(115V/T2A)
TRANS
FORMER
ZNR
RY-COMP
MAIN P.W.B ASM
BK
BK
BR
BR
RD
BL BL
OLP
RD
MOTOR
CAPACITOR
F
R
S
COMP.
C
C
H
3854AR2330P
WIRING DIAGRAM
RY-MID
FUSE
RD
BK
PTC
43
• MODEL : RAD-183A and RAD-243A
Service Manual 24
Schematic Diagram
Components Location
Main P.W.B Assembly
Display P.W.B Assembly
25 Room Air Conditioner
Troubleshooting Guide
Troubleshooting Guide
Piping System
Figure 34 is a brief description of the important components and their function in what is called the refrigeration
system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle.
MOTOR
COMPRESSOR
OIL
(LIQUID REFRIGERANT)
CAPILLARY TUBE
OUTSIDE COOLING
AIR FOR REFRIGERANT
PASS THROUGH
SUCTION LINE
COOL LOW PRESSURE VAPOR
COOLED
AIR
COMPLETE LIQUID
BOIL OFF POINT
LIQUID
PRESSURE
DROP
ROOM AIR HEAT LOAD
VAPOR INLET
HOT
DISCHARGED
AIR
LIQUID OUTLET
HIGH PRESSURE VAPOR
LIQUID REFRIGERANT
LOW PRESSURE VAPOR
ROOM AIR CONITIONER
EVAPORATOR COILS CONDENSER COILS
CYCLE OF REFRIGERATION
Figure 34
CONDENSER COIL
FAN
CAPILLARY TUBE
MOTOR
COMPRESSOR
BLOWER
EVAPORATOR COIL
Service Manual 26
Troubleshooting Guide
Troubleshooting Guide
In general, possible trouble is classified in two kinds.
The one is called Starting Failure which is caused from an electrical defect, and the other is ineffective Air
Conditioning caused by a defect in the refrigeration circuit and improper application.
Unit runs but poor cooling.
Ineffective Cooling
Check outdoor coil
(heat exchanger) & the fan
operation.
Check gas leakage.
Repair gas leak.
Replacement of unit if the
unit is beyond repair.
Satisfactory operation with
temperature difference of
inlet & outlet air ;
44~50°F(7~10°C)
Check heat load
increase.
Unexpected residue
Overloaded circuit
Check inside gas
pressure.
Adjusting of refrigerant
charged.
Malfunction of compressor.
Replacement of
compressor.
Check clogging in refrigeration circuit.
Repair clogging in refrigeration circuit.
Check cold air circulation
for smooth flow.
Dirty indoor coil
(Heat exchanger)
Malfunction of fan
Clogged of air filter.
Obstruction at air outlet
Stop of auto air-swing
Correct above trouble
27 Room Air Conditioner
Troubleshooting Guide
Fails to Start
Check circuit breaker
and fuse.
Gas leakage of feeler bulb
of thermostat
Check of control switch.
Fan only fails to start.
Improper wiring.
Defect of fan motor
capacitor.
Irregular motor resistance
(
).
Irregular motor insulation
(
).
Replacement of fan motor.
Regular but fails to start.
Replacement of compressor
(locking of rotor, metal).
Improper thermostat setting.
Loose terminal connection.
Improper wiring.
Irregular motor resistance ( )
Irregular motor insulation ( )
Replacement of compressor
(Motor damaged)
Drop of power voltage.
Capacitor check.
Replacement
Compressor only fails to
start.
Defect of compressor
capacitor.
Check of power source.
Check of control switch
setting.
Service Manual 28
Troubleshooting Guide
Electrical Parts Troubleshooting Guide
Possible Trouble 1 The unit does not operate.
Is the Trans output power
AC 220V?
Is the Trans output power
about AC 14V?
Is shorted the Trans. output?
Is output Voltage of IC01D
DC 12V?
Is output Voltage of IC02D
DC 5V?
Is the voltage No.20 of Micom
DC 5V?
Exchange Main PCB Ass'y.
Is the
connection between
Main and Display
all right?
Is the reset circuit all right?
(The No.16 of
Micom is 5V.)
• Check the Fuse.
• Check the wiring diagram.
• Check the Main
PCB pattern.
• Exchange the Trans.
• Exchange D02D~D05D.
• Exchange IC01D.
• Exchange IC02D.
• Exchange IC01A, C02A.
• Connect connector
exactly.
• Check the PCB
pattern.
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
NO
YES
29 Room Air Conditioner
Troubleshooting Guide
Is setting
Temp. set lower than Room
Temp.-0.5°C?
Is the voltage No.10
of IC01M 0V?
• Exchange IC01M.
• Select the setting Temp. to lower Number.
• Wait 3 Minutes.
Is the Unit for 3 minutes
delay?
• Exchange MAIN
PCB Ass'y.
Is the voltage N0.7 of
IC01M DC 5V?
• Check the RY-COMP.
• Check the wiring
Diagram.
NO
NO
NO
YES
YES
YES
YES
Is the wire connection of
RY-COMP all right?
• Check the RY-COMP.
• Connect LEAD Wire to
RY-COMP again.
NO
YES
NO
Possible Trouble 2 The compressor does not operate.
Possible Trouble 3 The compressor always operate.
Service Manual 30
Troubleshooting Guide
• Exchange IC01M.
• Exchange IC01M.
Is the voltage NO.1 or 4
of IC01M DC 5V?
Is the voltage NO.13 or 16
of IC01M 0V?
• Check the RY-Hi or
RY-Lo.
•
Check the wiring diagram.
NO
NO
YES
YES
• Exchange Micom.
• Exchange IC01M.
• Check the PCB pattern.
Is the voltage NO.6
of IC01M DC 5V?
Is the voltage NO.11
of IC01M 0V?
• Check the RY-SYNC.
• Check the connectionn
of CN-SYNC.
NO
NO
YES
YES
Possible Trouble 4 FAN does not operate.
Possible Trouble 5 Auto Swing does not operate.
31 Room Air Conditioner
Troubleshooting Guide
NO
NO
NO
NO
YES
YES
YES
Is the IC01G all right?
Is the connection of
CN-DISP all right?
• Exchange the display
PCB Ass'y.
• Exchange IC01G.
• Exchange
Q01G-Q04G.
• Connect connector
to CN-DISP exactly.
Does the
Q01G~Q04G operate normally
on main PCB Ass'y?
Is the voltage of Battery
about over 2.3V?
• Exchange Receiver Ass'y.
Is the connection of
CN-DISP all right?
Is the voltage No.16
of CN-DISP on Main PCB
Ass'y DC 5V?
• Exchange the battery.
• Check the PCB pattern.
• Connect connector to
CN-DISP exactly.
NO
NO
NO
YES
YES
YES
Possible Trouble 6 Remote controller does not operate.
Possible Trouble 7 It displays abnormally on display PCB Ass'y.
Service Manual 32
Troubleshooting Guide
COMPLAINT CAUSE REMEDY
Check voltage at outlet. Correct if necessary.
Check voltage to rotary switch. If none, check power
supply cord. Replace cord if circuit is open.
Check switch continuity. Refer to wiring diagram for
terminal identification. Replace switch if defective.
Connect wire. Refer to wiring diagram for terminal
identification. Repair or replace loose terminal.
Test capacitor.
Replace if not within ±10% of manufacturer's rating.
Replace if shorted, open, or damaged.
Fan blade hitting shroud or blower wheel hitting
scroll. Realign assembly.
Units using slinger ring for condenser fan must have
1
/4to 5/16inch clearance to the base. If it hits the
base, shim up the bottom of the fan motor with
mounting screw(s).
Check fan motor bearings; if motor shaft will not
rotate, replace the motor.
Check voltage. If not within limits, call an electrician.
Test capacitor.
Check bearings. Does the fan blade rotate freely?
If not, replace fan motor.
Pay attention to any change from high speed to
low speed. If the speed does not change, replace the
motor.
If cracked, out of balance, or partially missing,
replace it.
If cracked, out of balance, or partially missing,
replace it.
Tighten it.
If knocking sounds continue when running or loose,
replace the motor. If the motor hums or noise
appears to be internal while running, replace motor.
Check voltage.
If not within limits, call an electrician.
Check the wire connections, if loose, repair or
replace the terminal. If wires are off, refer to wiring
diagram for identification, and replace. Check wire
locations. If not per wiring diagram, correct.
Check for continuity, refer to the wiring diagram for
terminal identification. Replace the switch if circuit is
open.
No power
Power supply cord
Rotary switch
Wire disconnected or connection loose
Capacitor (Discharge
capacitor before testing.)
Will not rotate
Revolves on overload.
Fan
Turbo
Loose clamper
Worn bearings
Voltage
Wiring
Rotary
Fan motor will not run.
Fan motor runs
intermittently
Fan motor noise.
Compressor will not run,
but fan motor runs.
NAME PLATE RATING MINIMUM MAXIMUM
208~230±10% 187V 253V
115±10% 104V 126V
Room Air Conditioner Voltage Limits
33 Room Air Conditioner
Troubleshooting Guide
COMPLAINT CAUSE REMEDY
Check the position of knob If not at the coldest setting, advance the knob to this setting and restart
unit.
Check continuity of the thermostat. Replace thermostat if circuit is open.
Check the TEMP control. If not at the lowest number, set TEMP control to this setting and restart
the unit. Check the continuity of the thermistor.
Replace the thermistor if the circuit is open.
Check the capacitor.
Replace if not within ±10% of manufacturers rating. Replace if shorted, open, or damaged.
Check the compressor for open circuit or ground. If
open or grounded, replace the compressor.
Check the compressor overload, if externally
mounted. Replace if open. (If the compressor temperature is high, remove the overload, cool it, and
retest.)
Check the voltage.
If not within limits, call an electrician.
Check overload, if externally mounted.
Replace if open. (If the compressor temperature is
high, remove the overload, cool, and retest.)
If not running, determine the cause. Replace if
required.
Remove the cabinet. inspect the interior surface of
the condenser; if restricted, clean carefully with a
vacuum cleaner (do not damage fins) or brush.
Clean the interior base before reassembling.
If condenser fins are closed over a large area on
the coil surface, head pressures will increase,
causing the compressor to overload. Straighten
the fins or replace the coil.
Test capacitor.
Check the terminals. If loose, repair or replace.
Check the system for a restriction.
If restricted, clean of replace.
Close if open.
Determine if the unit is properly sized for the area
to be cooled.
Check the set screw or clamp. If loose or missing,
correct. If the turbo or fan is hitting air guide,
rearrange the air handling parts.
Remove the cabinet carefully and rearrange tubing
not to contact cabinet, compressor, shroud, and
barrier.
Thermostat
Thermistor
Capacitor (Discharge
capacitor before servicing.)
Compressor
Overload
Voltage
Overload
Fan motor
Condenser air flow restriction
Condenser fins (damaged)
Capacitor
Wiring
Refrigerating system
Air filter
Exhaust damper door
Unit undersized
Turbo or fan
Copper tubing
Compressor will not run,
but fan motor runs.
Compressor cycles on
overload.
Compressor cycles on
overload.
Compressor cycles on
overload.
Insufficient cooling or heating
Excessive noise
Service Manual 34
Troubleshooting Guide
COMPLAINT CAUSE
REMEDY
Test capacitor.
Check the terminals. If loose, repair or replace.
Check the system for a restriction.
If restricted, clean of replace.
Close if open.
Determine if the unit is properly sized for the area to
be cooled.
Check the set screw or clamp. If loose or missing,
correct. If the blower or fan is hitting air guide,
rearrange the air handling parts.
Remove the cabinet and carefully rearrange tubing
not to contact cabinet, compressor, shroud, and barrier.
Set the knob to HIGH COOL or LOW COOL while
rocker switch is ON.
Check terminals. If loose, repair or replace.
Check the synchronous motor for open circuit.
Capacitor
Wiring
Refrigerating system
Air filter
Exhaust damper door
Unit undersized
Turbo or fan
Copper tubing
Rotary switch.
Wiring
Synchronous motor.
Compressor cycles
on overload.
Insufficient cooling or heating
Excessive noise.
Auto air-swing fails.
35 Room Air Conditioner
Exploded View
Exploded View
159830
135314
147581-1
147581-2
135312
552111
554031
148000
749750
349600
346811
130410
354210
147582
349001
359012
349480
W48602
W48602
559011
267110
149980
550140
554160
352113
35211A
552113
567480
146812
W0CZZ
249950
135510
130910
268711-1
264100
268711-2
137215
238310
325115-2
325115-1
W0CZZ
269310
249950
135500
266003
137215
146812
264110
266002
149410
Cooling Model
RAD-183A
DESCRIPTION
130410 3041A30001H BASEASSEMBLY,SINGLE
R
130910 3091AR6056P CABINETASSY,SINGLE
R
135312 AEB30969401 Grille,ASSY,Front(SINGLE)
R
135314 3530AR1604A Grille,ASSY,INLET
R
135510 3551A30001A COVER,CONTROL(INDOOR)
R
146812 2H01102J MotorAssembly,SYNC
R
147581-1 4758AR7264A LOUVER,HORIZONTAL
R
147581-2 4758AR7278A LOUVER,HORIZONTAL
R
147582 4758AR6157A LOUVER,VERTICAL
R
148000 4800AR7271A BRACE
R
149980 4998AR1597B SHROUD
R
159830 5231AR6159A FILTERASSY,A/C
R
137215 3720AR6163A PANEL,CONTROL
R
238310 3831A20032L ESCUTCHEON
R
249950 4995A20613Y CONTROLBOXASSEMBLY,SINGLE
R
5674806323A20003SThermistor ASSEMBLY
R
2641006411A20056PPOWER CORD ASSEMBLY
R
267110 6711A20035A REMOTECONTROLLER
R
268711-16871A20611APWB(PCB) ASSEMBLY,DISPLAY
R
268711-26871A10193NPWB(PCB) ASSEMBLY,MAIN
R
3468114681A20081TMOTOR ASSEMBLY,SINGLE
R
349001 4900AR7265A DAMPER,VENTILAYION
R
349480 4948A20016A ORIFICE
R
349600 4960AR1596A MOUNT,MOTOR
R
552113 5211AR7059A TUBE ASSEMBLY,CONDENSER OUT
R
352113 5211A25040B TUBE ASSEMBLY,DISCHARGER SINGLE
R
35211A5211A10247PTUBE ASSEMBLY,SUCTIONSINGLE
R
749750 5239A20001WAIR GUIDE ASSEMBLY
R
354210 5421A20248G EVAPORATOR ASSEMBLY,FIRST
R
359012 5900A20027A FAN,TURBO
R
552111 5210A24956H Tube,BENDING
R
5540315403A20062FCONDENSER ASSEMBLY,BEND
R
554160 2520UCBJ002 COMPRESSOR
R
559011 5900AR1508B FANASSEMBLY,AXIAL
R
W0CZZ 0CF1042856A CAPACITOR
R
W48602 3H02932C CLAMP,SPRING
R
325115-1 5210A21083B TUBE,EVAPORATOR
R
325115-2 5210A21083C TUBE,EVAPORATOR
R
550140 4H00982C ISOLATOR, COMP
R
LocNo
P/NO
REMARK
Replacement Parts List
RAD-243A
DESCRIPTION
1304103041A30001FBASE ASSEMBLY,SINGLER
1309103091AR6056PCABINET ASSY,SINGLER
135312AEB30969401Grille ASSY,Front(SINGLE)R
1353143530AR1604AGrille ASSY,INLETR
1355103550AR7046DCOVER,CONTROL(INDOOR)R
1468122H01102JMotor Assembly,SYNCR
147581-14758AR7264ALOUVER,HORIZONTALR
147581-24758AR7278ALOUVER,HORIZONTALR
1475824758AR6157ALOUVER,VERTICALR
1480004800AR7271ABRACER
149980
4998AR1597B
SHROUDR
159830
5231AR6159A
FILTER ASSY,A/CR
137215
3720AR6163A
PANEL,CONTROLR
238310
3831A20032L
ESCUTCHEONR
249950
ABQ32895801
CONTROL BOX ASSEMBLY,SINGLER
567480
6323A20003S
Thermistor ASSEMBLYR
264100
6411A20056Q
POWER CORD ASSEMBLYR
267110
6711A20035A
REMOTE CONTROLLERR
268711-16871A20611APWB(PCB) ASSEMBLY,DISPLAYR
268711-26871A10193NPWB(PCB) ASSEMBLY,MAINR
3468114681A20081WMOTOR ASSEMBLY,SINGLER
3490014900AR7265ADAMPER,VENTILAYIONR
3494804948A20016AORIFICER
3496004960AR1596AMOUNT,MOTORR
5521135211AR7059ETUBE ASSEMBLY,CONDENSER OUTR
3521135211A21526JTUBE ASSEMBLY,DISCHARGER SINGLER
35211A5211A10094PTUBE ASSEMBLY,SUCTION SINGLER
749750 5239A20001WAIR GUIDE ASSEMBLYR
3542105421A20248FEVAPORATOR ASSEMBLY,FIRSTR
3590125900A20027AFAN,TURBOR
5521115210A24956JTube,BENDINGR
5540315403A20062FCONDENSER ASSEMBLY,BENDR
5541605416A20045BCOMPRESSORR
5590115900AR1508BFAN ASSEMBLY,AXIALR
W0CZZ0CF1042856ACAPACITORR
W486023H02932CCLAMP,SPRINGR
325115-15210A30144UTUBE,EVAPORATORR
325115-25210A30144VTUBE,EVAPORATORR
550140 4022A30008A ISOLATOR, COMP
R
LocNo
P/NO
REMARK
Replacement Parts List
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+($7&21752//(5,1&
:(//:257+$9(18(-$&.6210,&+,*$1
7+(48$/,7</($'(5,1&21',7,21,1*$,5
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