Panasonic CW-XC103HU User manual

Service Manual
Room Air Conditioner
CW-XC103HU
CW-XC118HU
CW-XC123HU
CW-XC143HU
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the product or products deal with in this service information by anyone else could result in serious injury or death.
© 2002 Matsushita Electric Industrial co., Ltd.
All rights reserved. Unauthorized copying and
distribution is violation of law.
R
ORDER NO. RAC0209003C1
E9

—2—
1. PREFACE
1.1 SAFETY PRECAUTIONS................................2
1.2 SPECIFICATIONS...........................................3
1.3 FEATURES......................................................4
2.
DISASSEMBLY INSTRUCTIONS
2.1 MECHANICAL PARTS....................................6
2.1.1 FRONT GRILLE .....................................6
2.1.2 CABINET................................................6
2.1.3 CONTROL BOX .....................................6
2.2 AIR HANDLING PARTS..................................7
2.2.1 AIR GUIDE AND BLOWER....................7
2.2.2 FAN ........................................................7
2.2.3 SHROUD................................................8
2.3 ELECTRICAL PARTS......................................8
2.3.1 OVERLOAD PROTECTOR....................8
2.3.2 COMPRESSOR......................................8
2.3.3 CAPACITOR...........................................9
2.3.4 POWER CORD ......................................9
2.3.5 THERMOSTAT.......................................9
2.3.6 SYNCHRONOUS MOTOR.....................9
2.3.7 MOTOR ................................................10
2.4 REFRIGERATION CYCLE............................10
2.4.1 CONDENSER.......................................10
2.4.2 EVAPORATOR.....................................10
2.4.3 CAPILLARY TUBE...............................11
3. INSTALLATION
3.1 SELECT THE BEST LOCATION...................13
3.2 CHECK OF INSTALLATION..........................13
3.3 HOW TO DRAIN............................................13
3.4 HOW TO INSTALL ........................................14
3.4.1 WHEN USING GASKET.......................14
3.4.2 WHEN USING INSTALLATION KITS...14
4.
TROUBLESHOOTING GUIDE
4.1 OUTSIDE DIMENSIONS...............................17
4.2 PIPING SYSTEM...........................................18
4.3 TROUBLESHOOTING GUIDE......................19
5. SCHEMATIC DIAGRAM
5.1 CIRCUIT DIAGRAM ......................................27
5.2 ELECTRONIC CONTROL DEVICE...............28
5.3
COMPONENTS LOCATION(FOR MAIN P.C.B ASM) ...29
5.4 COMPONENTS LOCATION(FOR DISPLAY P.C.B ASM) ...30
6. EXPLODED VIEW..................................31
7. REPLACEMENT PARTS LIST........33
1. PREFACE
This SERVICE MANUAL provides various service information, including the mechanical and electrical
parts etc. This room air conditioner was manufactured and assembled under a strict quality control system.
The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit.
1.1 SAFETY PRECAUTIONS
1. When servicing the unit, set the POWER SWITCH to OFF and unplug the power cord.
2. Observe the original lead dress.
If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.
CONTENTS

—3—
POWER SUPPLY Ø, V, Hz
COOLING CAPACITY Btu/h.
POWER INPUT W
RUNNING CURRENT A
EER Btu/h.W
OPERATING INDOOR °F(°C)
CONDITION OUTDOOR °F(°C)
REFREIGERANT (R-22) CHARGE
EVAPORATOR
CONDENSER
FAN INDOOR
OUTDOOR
FAN SPEED
FAN/COOLING
FAN MOTOR
OPERATION CONTROL
ROOM TEMP. CONTROL
AIR DIRECTION VERTICAL
CONTROL HORIZONTAL
CONSTRUCTION
PROTECTOR
COMPRESSOR
FAN MOTOR
POWER CORD
DRAIN SYSTEM
NET WEIGHT lbs(kg)
DIMENSION(W*H*D) inch(mm)
1, 115, 60
9,800 11,800 12,000 13,800
910 1,090 1,110 1,280
8.4 10.0 10.2 11.8
10.8 10.8 10.8 10.8
DB : 80(26.7) WB : 67(19.4)
DB : 95(35) WB : 75(23.9)
490g(17.3 oz) 500g(17.6 oz) 500g(17.6 oz) 530g(18.7 oz)
2 ROW 16 STACKS,SLIT-FIN TYPE 2 ROW 13 STACKS,SLIT-FIN TYPE
2 ROW 18 STACKS,LOUVERED-FIN TYPE
2 ROW 17 STACKS,LOUVERED-FIN TYPE
TURBO FAN
PROPELLER TYPE FAN WITH SLINGER-RING
3/3
6 POLES
REMOTE CONTROLLER
THERMISTOR
MANUAL
AUTO MANUAL AUTO
SLIDE IN-OUT CHASSIS
OVERLOAD PROTECTOR
INTERNAL THERMAL PROTECTOR
3 WIRE WITH GROUNDING
ATTACHMENT PLUG (CORD-CONNECTED TYPE)
DRAIN PIPE OR SPLASHED BY FAN SLINGER
95(43) 100(45) 115(52)
23 5/8*14 31/32*22 5/16 (600*380*567)
CW-XC103HU CW-XC118HU CW-XC123HU CW-XC143HU
MODELS
ITEMS
1.2 SPECIFICATIONS
* DB:Dry Bulb
**
WB:Wet Bulb
❈The specifications will be changed without notice for further improvement.

—4—
1.3 FEATURES
■VENTILATION
■CW-XC118HU
OPERATION BUTTON
To turn the air conditioner ON, push the button. To turn
the air conditioner OFF, push the button again.
This button takes priority over any other buttons. When
you first turn it on, the air conditioner is on the High cool
mode and the temp. at 72°F (22°C).
OPERATION MODE SELECTION BUTTON
Every time you push this button, it will toggle between
COOL and FAN.
FAN SPEED SELECTION BUTTON
Every time you push this button, it is set as follows.
[High(F3)→Low(F1)→Med(F2)→High(F3)→...]
ROOM TEMPERATURE SETTING BUTTON
This button can automatically control the temperature of
theroom.Thetemperaturecanbesetwithinarangeof
60°F to 86°F by 1°F (16°C to 30°C by 1°C).
Select the lower number for lower temperature of the
room.
ON/OFF TIMER BUTTON
You can set the time when the unit will turn on or turn off
automatically by pressing the timer button. If the unit is
operating, this button controls the time it will be turned
off. If the unit is off state, this button controls the time it
will start. Every time you push this button, the remaining
time will be set as follows.
- Stopping operation
• (1Hour →2Hours →3Hours →4Hours →5Hours →
6Hours →7Hours →8Hours →9Hours →10Hours →
11Hours →12Hours →0Hour →1Hour →2Hours →... )
• The Setting Temperature will be raised by 2°F(1°C)
30min. later and by 2°F(1°C) after another 30 min.
- Starting operation
• (1Hour →2Hours →3Hours →4Hours →5Hours →
6Hours →7Hours →8Hours →9Hours →10Hours →
11Hours →12Hours →0Hour →1Hour →2Hours →... )
REMOTE CONTROL SIGNAL RECEIVER
6
6
Precaution: The Remote Control unit will not function properly if strong light strikes the sensor window of the air
conditioner or if there are obstacles between the Remote Control unit and the air conditioner.
REMOTE CONTROL
DISPLAY
OPERATION
TEMP
TIMER
MODE FAN SPEED
52
1
6
43
2
4
1
5
3
VENTCLOSE OPEN
Part A
Part B
The ventilation lever must be in the CLOSE position in order to maintain the best cooling conditions.
When fresh air is necessary in the room, set the ventilation lever to the OPEN position.
The damper is opened and room air is drawn out.
NOTE: Before using the ventilation feature, and prior to installing the front grille, pull down part until level with part .

—5—
■CW-XC103HU, CW-XC123HU, CW-XC143HU
OPERATION BUTTON
To turn the air conditioner ON, push the button. To turn the air conditioner OFF, push the button again.
This button takes priority over any other buttons. When you first turn it on, the air conditioner is on the High cool mode and
the temp. at 72°F(22°C).
OPERATION MODE SELECTION BUTTON
Every time you push this button, it will toggle between COOL, FAN.
ROOM TEMPERATURE SETTING BUTTON
This button can automatically control the temperature of the room. The temperature can be set within a range of 60°Fto
86°Fby1°F(16°Cto30°Cby1°C).
Select the lower number for lower temperature of the room.
FAN SPEED SELECTION BUTTON
Every time you push this button, it is set as follows.
[High(F3)→Low(F1)→Med(F2)→High(F3)→...]
ON/OFF TIMER BUTTON
You can set the time when the unit will turn on or turn off automatically by pressing the timer button. If the unit is operating,
this button controls the time it will be turned off. If the unit is off state, this button controls the time it will start. Every time
you push this button, the remaining time will be set as follows.
- Stopping operation
(1Hour →2Hours →3Hours →4Hours →5Hours →6Hours →7Hours →8Hours →9Hours →10Hours →11Hours →
12Hours →0Hour →1Hour →2Hours →... )
The Setting Temperature will be raised by 2°F(1˚C) 30min. later and by 2°F(1˚C) after another 30 min.
- Starting operation
(1Hour →2Hours →3Hours →4Hours →5Hours →6Hours →7Hours →8Hours →9Hours →10Hours →11Hours →
12Hours →0Hour →1Hour →2Hours →... )
AIR SWING BUTTON
This button can automatically control the air flow direction.
ECONOMY BUTTON
If you push this button, the fan stops when the compressor stops cooling. Approximately every 3 minutes the fan will turn
on and check the room air temperature to determine if cooling is necessary.
REMOTE CONTROL SIGNAL RECEIVER
8
8
7
7
6
6
Precaution: The Remote Control unit will not function properly if strong light strikes the sensor window of the air
conditioner or if there are obstacles between the Remote Control unit and the air conditioner.
REMOTE CONTROL DISPLAY
4
2
1
8
6
5
3
OPERATION
TEMP
TIMER AIR
SWING
MODE
ECONOMY
FAN SPEED
1
4
6
5
2
7
3

—6—
2.1 MECHANICAL PARTS
2.1.1 FRONT GRILLE
1. Open the lnlet grille upward .
2. Remove the screw which 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 1)
2.1.2 CABINET
1. After disassembling the FRONT GRILLE, remove
the 2 screws which fasten the cabinet at both
sides.
2. Remove the 2 screws which fasten the cabinet at
back.
3. Pull the base pan forward. (See Figure 2)
4. Remove the cabinet.
5. Re-install the component by referring to the
removal procedure, above.
2.1.3 CONTROL BOX
1. Remove the front grille. (Refer to section 2.1.1)
2. Remove the cabinet. (Refer to section 2.1.2)
3. Remove the 2 screws which fasten the control box
cover.
4. Remove two housings which connect compressor
wire and motor wire in the control box.
5.Discharge the capacitor by placing a 20,000
ohmresistor across the capacitor terminals.
6. Remove the 2 screws which 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 3)
(Refer to the circuit diagram found on pages
34~37 in this manual and on the control box.)
2. DISASSEMBLY INSTRUCTIONS
—Before the following disassembly, POWER SWITCH set to OFF and disconnect the power cord.
Figure 1
Figure 3
Figure 2

—7—
2.2 AIR HANDLING PARTS
2.2.1 AIR GUIDE AND BLOWER
1. Remove the front grille. (Refer to section 2.1.1)
2. Remove the cabinet. (Refer to section 2.1.2)
3. Remove the control box. (Refer to section 2.1.3)
4. Remove the 4 screws which fasten the brace.
5. Remove the brace.
6. Remove the 2 screws which fasten the evaporator.
7. Move the evaporator forward and pulling it upward
slightly. (See Figure 4)
8. Move the evaporator to the left carefully.
9. Pull out the hook of orifice by pushing the tabs and
remove it. (See Figure 5)
10.Remove the clamp with a hand plier which
secures the blower.
11. Remove the blower.
12. Remove the 4 screws which fasten the air guide
from the barrier.
13. Move the air guide backward, pulling out from the
base pan.
14. Re-install the components by referring to the
removal procedure, above.
2.2.2 FAN
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the brace (Refer to section 2.2.1)
3. Remove the 4 screws which fasten the condenser.
4. Move the condenser to the left carefully.
5. Remove the clamp which secures the fan.
6. Remove the fan. (See Figure 7)
7. Re-install by referring to the removal procedure.
Figure 4
Figure 5
Figure 6
Figure 7

—8—
2.2.3 SHROUD
1. Remove the fan. (Refer to section 2.2.2)
2. Remove the screw which fastens the shroud.
3. Remove the shroud. (See Figure 8)
4. Re-install the component by referring to the
removal procedure, above.
2.3 ELECTRICAL PARTS
2.3.1 OVERLOAD PROTECTOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the nut which fastens the terminal cover.
3. Remove the terminal cover. (See Figure 9)
4. Remove all the leads from the overload protector.
5. Remove the overload protector.
6. Re-install the component by referring to the
removal procedure, above.
2.3.2 COMPRESSOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Discharge the refrigerant system using a FreonTM
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.
3. Remove the overload protector. (Refer to section
2.3.1)
4. After purging the unit completely, unbraze 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 10)
7. Re-install the components by referring to the
removal procedure, above.
Figure 8
Figure 9
Figure 10

—9—
2.3.3 CAPACITOR
1. Remove the control box. (Refer to section 2.1.3)
2. Remove the knobs and the screw which fasten
control panel from control box.
3. Remove the screw which located in the front.
4. Open the bottom side of control box.
5. Remove the screw and the clamp which 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 11)
2.3.4 POWER CORD
1. Remove the control box. (Refer to section 2.1.3)
2. Open the control box. (Refer to section 2.3.3)
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 12)
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 which has the same
specification marked on the supply cord attached
at the unit.)
2.3.5 THERMISTOR
1. Remove the control box. (Refer to section 2.1.3)
2. Open the control box. (Refer to section 2.3.3)
3. Disconnet the thermistor terminals from main
P.W.B assembly.
4. Remove the thermistor.
5. Re-install the components by refereing to the
above removal procedure. (See Figure 13)
2.3.6 SYNCHRONOUS MOTOR
1. Remove the control box. (Refer to section 2.1.3)
2. Unfold the control box. (Refer to section 2.3.3)
3. Remove the crankshaft.
4. Disconnect all the leads of the synchronous
motor.
5. Remove the 2 screws which fasten the
synchronous motor. (See Fig. 14)
6. Re-install the components by referring to the
removal procedure, above.
Figure 12
Figure 11
Figure 13
Figure 14

—10—
2.3.7 MOTOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the evaporator. (Refer to section 2.2.1)
3. Remove the orifice. (Refer to section 2.2.1)
4. Remove the blower. (Refer to section 2.2.1)
5. Remove the fan. (Refer to section 2.2.2)
6. Remove the control box cover and disconnect 5 or
4 wires of motor housing. (Refer to section 2.1.3)
7. Remove the 2 or 4 screws which fasten the motor
from the mount motor. (See Figure 14)
8. Remove the motor.
9. Re-install the components by referring to the
removal procedure, above.(See Figure 14)
2.4 REFRIGERATING CYCLE
2.4.1 CONDENSER
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the 4 screws which fasten the
brace.(Refer to section 2.2.1)
3. Remove the 5 screws which 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 15)
2.4.2 EVAPORATOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the 2 screws which fasten the evaporator.
3. Move the evaporator sideways carefully.
(Refer to section 2.2.1)
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 16)
Figure 14
Figure 15
Figure 16
Discharge the refrigerant system using a
FreonTM 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.
CAUTION

—11—
—Replacement of the refrigeration cycle.
1. When replacing the refrigeration cycle, be sure to
Discharge the refrigerant system using a FreonTM
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. Solder service valves into the pinch-off tube ports,
leaving the valves open.
4. Solder the pinch-off tubes with Service valves.
5. Evacuate as follows.
1) Connect the vacuum pump, as illustrated figure
18A.
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.
3) Operate the vacuum pump 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
18B.
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
18B.
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 0.2 Mpa.
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 solder and solder
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.
NOTES
If high vacuum equipment 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.
2.4.3 CAPILLARY TUBE
1. Remove the cabinet. (Refer to section 2.1.2)
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.
CAUTION

—12—
Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin-off tool capable
of making a vapor-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 17A-Pulling Vacuum Figure 17B-Charging
A
B
EXTERNAL
VACUUM PUMP
A
CHARGING
CYLINDER
LOW HI
B
C

—13—
3. INSTALLATION
3.1 SELECT THE BEST LOCATION
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 30.48cm(12") and there should be no
obstacles, such as a fence or wall, within
50.8cm(20") 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.
4.Install the unit a little slanted so the back is slightly
lower than the front (about 12.7mm(1/2")). This will
help force con-densed water to the outside.
5.Install the unit from the bottom about
76.2cm(30")~152.4cm(60") above the floor level.
3.2 CHECK OF INSTALLATION
The setting conditions must be checked prior to
initial starting.
The undermentioned 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.
3.3. HOW TO DRAIN
(When using drain pipe)
The air conditioner must be installed horizontally or
tilted slightly to the outside for proper water
drainage.
On exceptionally hot and humid days the air
conditioner may overflow conclensed water.
If the air conditioner is used in hot and a high
humidity zone, exchange the HOLE RUBBER
for the DRAIN PIPE.(See figure 19, figure 20.)
All side louvers of the cabinet must remain
exposed to the outside of the structure.
AWNING
COOLED AIR HEAT
RADIATION
76.2cm(30")
~152.4cm(60")
ABOUT 12.7mm(1/2")
Over 50.8cm(20")
FENCE
BASE PAN
HOLE RUBBER
DRAIN PIPE
1
BOTTOM
2
BASE PAN BOTTOM
Figure 19
Figure 20
Figure 18
CAUTION

—14—
3.4 HOW TO INSTALL
3.4.1 WHEN USING GASKET
3.4.2 WHEN USING INSTALLATION KITS
A. WINDOW REQUIREMENTS
This unit is designed for installation in
standard double hung windows with actual opening
widths from 68.58cm(27") to 99.09cm(39").
The top and bottom window sash must open
sufficiently to allow a clear vertical opening of 16"
from the bottom of the upper sash to the window
stool.
A
B
DE
F
H
2
31
4
2
1A
RIGHT SIDE
HORIZONTAL
LINE
B
1. WINDOW (WIDTH-A, HEIGHT-B)
2. GASKET
3. WALL
4. DETAILS 5.1 x 30 ROUND HEAD WOOD
SCREWS
ABCDE F HI
625mm 392mm 280mm 30mm 0~25mm OVER 420mm 5~10mm -5~5mm
(245/8") (157/16") (111/32") (11/16") (0~1") (OVER 1617/32") (3/16"~3/8") (-3/16"~3/16")
12 3 4
8 12
13
9
765
11
10
B. INSTALLATION KITS CONTENTS
60.58cm(27") to
99.09cm(39")
Stool
Interior wall
74.6cm(235/8" min)
(Without frame curtain)
Offset
12.7mm(
1/
2 ") to
6.35mm(1/4")
Sill
Exterior
40.64cm(16") min
NO. NAME OF PARTS Q'TY
1 FRAME CURTAIN 2
2 SILL SUPPORT 2
3BOLT 2
4 NUT 2
5 SCREW(TYPE A) (10mm(2/5")) 16
6 SCREW(TYPE B) 3
7 SCREW(TYPE C) 5
8FOAM-STRIP 1
9 FOAM-PE (600mm x 25mm x 2mm) 1
10 FRAME GUIDE 2
11 WINDOW LOCKING BRACKET 1
12 FOAM-PE (920mm x 30mm x 2mm) 1
13 DRAIN PIPE 1
D5.1mm(0.2")
16mm(0.63")
D4.1mm(0.17")
16mm(0.63")

—15—
SUGGESTED TOOL REQUIREMENTS
SCREWDRIVER(+, -), RULER, KNIFE, HAMMER, PENCIL, LEVEL
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. Remove EPS Material.
4. 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.
5. Remove the backing from the top upper guide
Foam PE and attach it to the bottom of the upper
guide.
6. Attach the upper guide onto the top of the cabinet
with 3 type A screws.
7. Insert the frame guides into the bottom of the
cabinet.
8. Insert the Frame Curtain into the upper guide
and frame guides .
9. Fasten the curtains to the unit with 4 Type A screws
at the both sides.
CABINET INSTALLATION
1. Open the window. Mark a line on center of the
window stool(or desired air conditioner location).
Carefully place the cabinet on the window stool and
align the center mark on the bottom front with the
center line marked in the window stool.
2. Pull the bottom window sash down behind the
upper guide until it meets.
NOTE:
•Do not pull the window sash down so tightly that the
movement of Frame Curtain is restricted.
9
12
5
5
5
10
10
(Type A)
(Type A)
Upper Guide
Front Angle Window stool
Upper guide
Window Sash
Cabinet
Frame Curtain 1
EPS Material
Shipping screws
Figure 21
Figure 22

INDOOR OUTDOOR
Sill Support
Nut
Bolt
2
4
3
INDOOR OUTDOOR
10
6
7
2
5
Frame Guide
About 1/2"
Screw(Type A)
Cabinet
6
2
About 1/2"
Screw(Type B) 5 Screw(Type A)
Sill support
Sash track
Front Angle
Type C
Screw(Type B)
Sill support
—16—
3. Loosely assemble the sill support using the parts
in Figure 23.
4. Select the position that will place the sill
support near the outer most point on sill
(See Figure 23)
NOTE: Be careful when you install the cabinet (frame
guides are broken easily).
5. Attach the sill support to the cabinet track hole in
relation to the selected position using
2 Type A screws in each support (See Figure 24).
6. The cabinet should be installed with a very slight
tilt(about 12.7mm 1/2") downward toward the
outside (See Figure 25).
Adjust the bolt and the nut of sill support for
balancing the cabinet.
7. Attach the cabinet to the window stool by
driving the screws (Type B: Length sixteen
millimeters and below.) through the front angle into
window stool 16mm (5/8").
8. Pull each Frame curtain properly to each window
sash track, and repeat step 2.
9. Attach each Frame curtain to the window sash by
using screws (Type C).
(See Figure 26)
Figure 23
Figure 24
Figure 25
Figure 26

11
8
Foam-Strip
380(14 / ")
Screw(Type A)
Screw(Type A)
Power cord
3132
—17—
4. TROUBLESHOOTING GUIDE
4.1 OUTSIDE DIMENSIONS unit: mm(inch)
10. Slide the unit into the cabinet.(See Fig. 27)
CAUTION: For security purpose, reinstall screws(Type
A) at the cabinet's sides.
11. Cut the foam-strip to the proper length and insert
between the upper and lower window sash.
(See Fig. 28)
12. Attach the window locking bracket with a type C
screw. (See Fig. 29)
13. 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. 30)
14. Lift the inlet grille and secure it with a type A screw
through the front grille.(See Fig. 31)
Figure 27
Figure 28
Figure 29
Figure 32
Figure 31
Figure 30

—18—
4.2 PIPING SYSTEM
Figure 33 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
CAPILLARY TUBE
COMPRESSOR
BLOWER
EVAPORATOR COIL
CONDENSER COIL
FAN
MOTOR
Figure 33

—19—
4.3 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.
Clean condenser.
Not on separate circuit.
Check inside gas
pressure.
Adjusting of refrigerant
charged.
Malfunction of compressor.
Replacement of
compressor.
Check cold air circulation
for smooth flow.
Dirty indoor coil
(Heat exchanger)
Stop of auto air-swing
Correct above trouble
Check clogging in refrigera-
tion circuit.
Repair clogging in refrigera-
tion circuit.
Obstruction at air outlet
Clogged of air filter.
Malfunction of fan

—20—
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.