Samsung AW078AA User manual

ROOM AIR CONDITIONER
AW078AA
AW088AA
AW108AA
AW128AA
AW069AB
AW089AB
AW109AB
AW129AB
AIR CONDITIONER CONTENTS
1. Precautions
2. Product Specifications
3. Installation and Operating
Instructions
4. Disassembly and Reassembly
5. Troubleshooting
6. Exploded Views and Parts List
7. Block Diagram
8. Wiring Diagram
SERVICE Manual
DB98-04511A(1)-CO 3/20/02 2:28 PM Page 2

1. Precautions
Samsung Electronics 1-1
1. Warning: Prior to repair, disconnect the
power cord from the circuit breaker.
2. Use proper parts: Use only exact
replacement parts. (Also, we recommend
replacing parts rather than repairing them.)
3. Use the proper tools: Use the proper tools
and test equipment, and know how to use
equipment may cause problems later-
intermittent contact, for example.
4. Power Cord: Prior to repair, check the
power cord and replace it if necessary.
5. Avoid using an extension cord, and avoid
tapping into a power cord. This practice
may result in malfunction or fire.
6. After completing repairs and reassembly,
check the insulation resistance.
Procedure: Prior to applying power, measure
the resistance between the power cord and the
ground terminal. The resistance must be
greater than 30 megaohms.
7. Make sure that the grounds are adequate.
8. Make sure that the installation conditions
are satisfactory.
Relocate the unit if necessary.
9. Keep children away from the unit while it is
being repaired.
10. Be sure to clean the unit and its surrounding
area.
Fig. 1-1 Avoid Dangerous Contact
Fig. 1-2 No Tapping and No Extension Cords
Fig. 1-3 No Kids Nearby!
Fig. 1-4 Clean the Unit
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1-2 Samsung Electronics
Type Model Name
A
B
: The symbol of model name
Notice
AW078AA
AW088AA
AW069AB
AW089AB
AW109AB
AW128AA
AW129AB
DB98-04511A(1)-1 3/20/02 2:23 PM Page 1-2
C
AW108AA

Samsung Electronics 2-1
2. Product Specifications
2-1 Table
DB98-04511A(1)-1 3/20/02 2:23 PM Page 2-1
Item Unit of Measure AW069AB AW078AA AW088AA AW089AB
Type -
Voltage Volt
Phase -
Frequency Hz
Operating Current A
Power Consumption W
Refrigerant Type FREON
Refrigerant Charge g
Capacity BTU/h
EER BTU/h.W
Net Weight kg
Condenser Row 3×15 2×15 2×15 3×15
Condenser Fan Type
Evaporator Row 2×14 2×14 2×14 3×14
Evaporator Fan Type
Fan Motor Model YGN55-6F YGN55-6E YGN55-6B YGN55-6B
Compressor(Rotary) Model 44C062HU1EA 44A072HW1EB 44A080HU1EB 44A076HU1EB
Overload Protect -MRA12040-12008 MRA98706-12008 MRA12083-12008 MRA12083-12008
Compressor Capacitor F/VAC 35/370 25/370 35/370 35/370
Fan Motor Capacitor F/VAC 5/250 6/450 6/250 6/250
Fan speed RPM 780/750/670 780/720/650 880/780/710 880/780/710
Thermo Control -
Air Swing Model
WINDOW
M2CK59ZT79-H
Packing size:
(Width×Height×Depth) mm
Dimensions:
(Width×Height×Depth) mm
THERMISTOR
520×345× 485
571×454× 546
R22
Propeller Fan
Blower
Single

2-2 Samsung Electronics
Table (cont.)
DB98-04511A(1)-1 3/20/02 2:23 PM Page 2-2
Item Unit of Measure AW108AA AW109AB AW128AA AW129AB Remarks
Type
Voltage Volt
Phase -
Frequency Hz
Operating Current A
Power Consumption W
Refrigerant Type FREON
Refrigerant Charge g
Capacity BTU/h
EER BTU/h.W
Net Weight kg
Condenser Row 3×15 3×17 3×17 3×17
Condenser Fan Type
Evaporator Row 2×12 2×16 3×16 2×14
Evaporator Fan Type
Fan Motor Model YGN61-6A YFK70-6A YGN60-6B YGN60-6G
Compressor(Rotary) Model 44B098HU2EF 44B098HU2EF 44B124HX1EL 44B124HX1EL
Overload Protect -MRA12132-12007 MRA12132-12007 MRA98693-12007 MRA98693-12007
Compressor Capacitor F/VAC 45/370 45/370 50/370 50/370
Fan Motor Capacitor F/VAC 15/250 8/250 15/250 15/250
Fan speed RPM 1020/970/900 880/800/740 880/780/710 880/780/710
Thermo Control -
Air Swing Model
WINDOW
M2CK59ZT79-H
660×394× 595550×345× 485
590×468× 578 728×459× 647
THERMISTOR
R22
Propeller Fan
Dimensions:
(Width×Height×Depth) mm
Blower
Single
Packing size:
(Width×Height×Depth) mm

Samsung Electronics 2-3
2-2 Dimensions
2-2-1 Main Unit
2-2-2 Remote Control
W
HH
D
Front view Side view
(Unit : mm)
Timer setting button
Sleep timer setting button
Operating mode
selection buttons
Energy Saver button
Air flow blade swing button
Temperature adjustment
buttons
Fan speed
adjustment buttons
ON/OFF button
Type W H D
A520 345 485
B600 394 595
DB98-04511A(1)-1 3/20/02 2:23 PM Page 2-3
C550 345 485

2-4 Samsung Electronics
MEMO
DB98-04511A(1)-1 3/20/02 2:23 PM Page 2-4

Samsung Electronics 3-1
3. Installation and Operating Instructions
3-1 Installation
3-1-1 Selecting Area for Installation
1. Make sure that you install the unit in an area
providing good ventilation. The air conditioner
must not be blocked by any obstacle affecting the
air flow near the air inlet and air outlet.
2. Make sure that you install the unit in an area that
allow good air handling. The installation area must
be able to endure vibration from the unit.
3. Make sure that you install the unit away from heat
or vapor.
4. Make sure that you install the unit in an area
which is cool and has adequate space.
5. Make sure that you install the unit in an area away
from TVs, audio units, cordless phones,
fluorescent lighting fixtures and other electrical
appliances (obtain a clearance of at least one meter).
6. Make sure that you install the unit in an area which
provides easy drainage for condensed water.
7. Make sure that you install the unit in an area not
exposed to rain or direct sunlight.
(Install a separate sunblind if exposed to direct
sunlight.)
8. Make sure that you install the unit in an area
allowing good air movement. Do not install it in
a space that would cause noise amplification of
noise.
9. Fix the unit firmly if mounted in a high place.
Caution:
Do not use the air conditioner in the following environments : greasy areas (including areas near
machines), or marine areas. Contact your local dealer for advice.
DB98-04511A(1)-1 3/20/02 2:23 PM Page 3-1

3-2 Samsung Electronics
3-2 Function Description
3-2-1 Cooling operation mode
Fan speed indicator
(LOW, MED, HIGH)
Temperature/Timer settings
Temperature
adjustment buttons
Operating mode indicators
(COOL, FAN)
Remote control sensor
Air flow blade swing button
Fan Speed adjustment button
Air flow blade swing indicator
Energy saver indicator
ON/OFF Timer adjustment button
Sleep adjustment button
Timer indicator
Energy saver button
Operating mode selection button
Operating on/off
The compressor is turned on and off according to the ambient temperature and set temperature.
1) Compressor on and off control
• Compressor on and off control according to the ambient temperature
*The compressor is turned off when "ambient temperature = set temperature
*The compressor is turned on when "ambient temperature = set temperature +1˚C"
2) Default value after power reset ➔set temperature = 24˚C
Fan speed = High
3) Set temperature indicating (setting) range : 1˚C interval from 18˚C to 30˚C.
3-2-2 Fan operation mode
1) If "Fan operation mode" signal is received from remocon or panel.
➔ the compressor is immediately turned off and only fan motor is operated at set blowing speed.
➔ it changes such as "High ➔Med ➔Low ➔ High"( if Fan speed is selected).
2) The initial Fan motor speed is set to "High".
3) The set temperature can not be indicated and set.
3-2-3 Energy saver operation mode
*If the compressor turn off at the cooling operation, the fan motor turn off after operation during the fixation time only,
and operation that energy saver by turn off the fixation time only, and operation that energy saver by turn off the motor
continuously before the condition of the compressor on.
*The fan motor is not operated at flow wind operation.
*Energy saver operation specification at the cooling operation.
1) Fan motor control in compressor on : operate with setting wind speed
2) Fan motor control in compressor off : After compressor off, the fan motor is operated breeze for 2 minutes and then it
turn off.
3) After the fan motor off, the compressor and fan motor is operated normally when the compressor on.
DB98-04511A(1)-1 3/20/02 2:23 PM Page 3-2

Installation and Operating Instructions
Samsung Electronics 3-3
3-2-4 Sleep operation mode
1) Enable to sleep operation only when cooling operation.
2) First, 7-SEG LED DISPLAY "SLEEP" while 15 second, Second, 7-SEG LED DISPLAY "8Hr"
And, automatically SET OFF after operated while 8 Hour
3) If sleep operation, setting Temperature rise 1˚C after 1 Hour
4) ON TIMER operation, not operation, ENERGY SAVER operation, not sleep operation.
3-2-5 Air flow blade swing motor operation
1) The Air flow blade swing motor is turned on and off according to Air flow blade swing operation in remocon or panel,
if SET is cooling or Fan operation mode.
2) If the operation mode is "ENERGY SAVER", in case of fan motor being turned off Air flow blade swing motor is
immediately turned off.
3-2-6 LED display indication in case of error detection
ERROR OPERATION
ROOM THERMISTOR
(OPEN or SHORT)
7-SEG
LED DISPLAY
E1 displayed
1) Set operation in case of error occurrence.
• Malfunction of each temperature sensor (open, short)
- Error mode display, warning sound.
- The operation status is off.
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3-4 Samsung Electronics
Installation and Operating Instructions
Key operational function
POWER Operation start and stop
*First ON = operation start, second ON = operation stop
- Selected as "OFF –> COOL or FAN". (DEFAULT=OFF)
*Continuous operation is not available.
Mode Operation mode change
*at every ON
- Selected as "COOL –> FAN". (Default=COOL)
*If operation is OFF, it is considered as an invalid key.
*Continuous operation is not available.
Fan speed Fan motor speed setting
*at every ON
- Selected as “HIGH →MED →LOW →HIGH”. (DEFAULT=HIGH)
Temperature Currently displayed set temperature increase/decrease
(▲ ▼)*At every pressing, the set temperature is changed by 1˚C
(increase(▲) : 18˚C →19˚C →... →29˚C →30˚C)
(decrease(▼) : 24˚C →23˚C →... →17˚C →18˚C)
*In case of the set temperature of 30˚C, when the “increase” key is pressed
temperature does not increase any more.
*In case of the set temperature of 18˚C, when the “decrease” key is pressed
temperature does not decrease any more.
*In case of above situation, when “increase/decrease“ key is pressed by remocon,
warning sound is generated.
*If operation is OFF, it is considered as an invalid key.
*In case of “FAN” mode operation, it is considered as an invalid key.
*Continuous operation is available.
Circulaire Circulaire motor operation and stop
*Once ON=Circulaire motor operation. Another ON-Circulaire motor stop.
*Continuous operation is not available.
*In case of operation stop, when the fan motor is turned off it is considered as an invalid key.
Timer Setting the on/off timer
(ON/OFF) *Can set “OFF TIMER HOUR“ if set is operation
*Can set “ON TIMER HOUR“ if set is not operation
*Once ON = standby setting TIMER : “– –“ displayed
*In case of key pressing in status of standby setting ON/OFF TIMER
(––Hr →1Hr →2Hr →... –> 23Hr →24Hr)
*If press TIMER key countinuosly operate such the lower part
(––Hr →1Hr →2Hr →... →24Hr →--Hr)
*Continuous operation is available.
Sleep SLEEP mode on and off
*Once ON=SLEEP mode on, Another ON=SLEEP mode off
• Continuous operation is not abailable
• Operation off, on timer Operation, save operation , not key operation
*Not SLEEP operation is FAN mode
Energy Saver Power save mode on and off
*Once ON=Power save mode on, Another ON=Power save mode off
*Continuous operation is not available.
*If operation is OFF, it is considered as an invalid key.
3-2-7 Panel key operation
Key discription
Key name
DB98-04511A(1)-1 3/20/02 2:23 PM Page 3-4

Samsung Electronics 3-5
Installation and Operating Instructions
3-2-8 LED lamp operation specifications
LAMP name Operations specifications
COOLING The mode is set to "COOL" →ON
Others →OFF
FAN The mode is set to "FAN" →ON
Others →OFF
HIGH The mode is set to "HIGH" →ON
Others →OFF
MED The mode is set to "MED" →ON
Others →OFF
LOW The fan speed is set to "LOW" →ON
Others →OFF
TIMER The mode is set to "TIMER" →ON
Others →OFF
ENER SAVER The mode is set to "ENERGY SAVER" →ON
Others →OFF
CIRCULAIRE The mode is set to "CIRCULAIRE" →ON
Others →OFF
In case of set temperature display
→NO. (1) 7–SEG LED DISPLAY indicates temperature of the tens digit
→NO. (2) 7-SEG LED DISPLAY indicates temperature of the units digit
In case of time display
→NO. (1) 7–SEG LED DISPLAY indicates time of the tens digit
→NO. (2) 7–SEG LED DISPLAY indicates time of the units digit
In case of set temperature display
→NO. (3) 7–SEG LED DISPLAY indicates temperature unit(˚)
→NO. (4) 7-SEG LED DISPLAY indicates temperature unit(C)
In case of time display
→NO. (3) 7–SEG LED DISPLAY indicates time unit(H) of the tens digit
→NO. (4) 7–SEG LED DISPLAY indicates time unit(r) of the units digit
First, 7–SEG LED DISPLAY "SLEEP"while 15 second,
Second, 7-SEG LED DISPLAY "8Hr"
(1) (2)
(3)
(1) (2) (3) (4)
(4)
DB98-04511A(1)-1 3/20/02 2:23 PM Page 3-5

3-6 Samsung Electronics
3-3 Remocon Control
3-3-1 Remocon key operation
11) In case of pressing ”POWER”key, operation start and stop.
12) In case of pressing ”COOL”key, cool mode operation start.
13) In case of pressing ”FAN”key, fan mode operation start.
14) In case of pressing ”HIGH”key, fan motor operates high speed.
15) In case of pressing ”MED”key, fan motor operates mid speed.
16) In case of pressing ”LOW”key, fan motor operates low speed.
17) In case of pressing ”ENERGY SAVER”on/off key, set operates as power saving mode.
18) In case of pressing ”▲”key, set temperature increase by 1˚C(18˚C ~ 30˚C).
19) In case of pressing ”▼”key, set temperature decrease by 1˚C(30˚C ~ 18˚C).
10) In case of pressing ”TIMER”key, the convenient reserve TIMER time increase by 1 Hr (1Hr ~ 24Hr).
11) In case of pressing ”SLEEP”key, SLEEP operates.
12) In case of power off, all keys except POWER key are considered as an invalid key.
Timer setting button
Sleep timer setting button
Operating mode
selection buttons
Energy Saver button
Air flow blade swing button
Temperature adjustment
buttons
Fan speed
adjustment buttons
ON/OFF button
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Samsung Electronics 3-7
Installation and Operating Instructions
3-3-2 Resistor values table of “ROOM THERMISTOR” for each temperature
Temperature
[˚C] THERMISTOR RESISTOR
[Kohm] ±1%
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
2.229
2.296
2.365
2.437
2.512
2.589
2.669
2.752
2.838
2.928
3.021
3.116
3.216
3.319
3.426
3.537
3.652
3.772
3.897
4.026
4.161
4.300
4.444
4.594
4.749
4.912
5.080
5.256
5.439
5.630
5.828
6.033
6.246
6.468
6.699
6.941
7.192
7.455
7.729
8.015
8.313
Temperature
[˚C] THERMISTOR RESISTOR
[Kohm] ±1%
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
8.622
8.944
9.281
9.632
10.000
10.380
10.780
11.200
11.630
12.090
12.560
13.060
13.570
14.120
14.680
15.280
15.900
16.550
17.240
17.960
18.700
19.480
20.290
21.150
22.050
22.990
23.900
25.030
26.130
27.280
28.470
29.720
31.040
32.430
33.890
35.430
37.050
38.760
40.560
<Room thermistor>
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3-8 Samsung Electronics
MEMO
DB98-04511A(1)-1 3/20/02 2:23 PM Page 3-8

Samsung Electronics 4-1
4. Disassembly and Reassembly
4-1 Compressor Replacement Flow Chart
Locate cause of defect
Release refrigerant
Disconnect electrical wiring
from compressor
Cut refrigerant lines
from compressor
Plug disconnected lines
Replace compressor
Inspect electrical
wiring for defects,
and terminals for
correct and secure
connections
Solder discharge line
Corrective action Check refrigerant oil level
Add oil as necessary
Solder suction line Use nitrogen gas
Perform soldering function
Fill system with nitrogen gas
Check for leakage
Pinch and braze filling tube
Recharge system
Evacuate system
Release nitrogen gas?
Problem?
Low oil level?
N
Y
Y
N
N
Y
Leakage?
DB98-04511A(1)-1 3/20/02 2:23 PM Page 4-1

4-2 Checking the oil
4-2-1 Oil quality
4-2-2 Replacing and refilling the refrigerant oil
1. Change the compressor - DO NOT recharge the oil as the compressor itself is
already charged.
2. Change the condenser .... add 50cc
3. Change the evaporator .... add 50cc
4. When the refrigerant is replaced .... add 30cc oil.
5. After vacuum is completed, the oil is filled through the high pressure side.
6. In the event of a refrigerant leak, generally it is not necessary to add oil.
(Unless the oil has leaked significantly.)
Fill the transparent container with 10cc of oil, and then conduct the test.
Conidition of
Refrigerant Cycle
Normal
Over-heated
Compressor Damage
Color
Straw Yellow
Brown Color
Dark Brown
Odor
No Odor
-
Pungent oil
Remarks
Return with the system
Change the oil
Change the oil
Oil Condition
4-2 Samsung Electronics
DB98-04511A(1)-1 3/20/02 2:23 PM Page 4-2

Samsung Electronics 4-3
4-3 Disassembly and Reassembly Procedure (Type “A”)
Stop operating the air conditioner, and pull out the power cord before repair.
No. Part name Procedures Remarks
!
@
#
Ass'y Grill
Ass'y Cabinet
Ass'y COVER EVAP
1. Pull the panel front and remove the screw
on the grille.
2. Hold the lower part of grill with two hands
while pressing down on both sides of the
lower part of the cabinet, pull it forward by
about 30, and the then lift it up for removal.
1. Remove the two screws both side cabinet.
2. Pull the front both side, and remove the unit
from the cabinet.
1. Remove 6 screws on the COVER EVAP.
2. Remove the COVER EVAP.
POWER/MODE
*The type of front-panel
depends on models.
DB98-04511A(1)-1 3/20/02 2:24 PM Page 4-3

Disassembly and Reassembly
4-4 Samsung Electronics
No. Part name Procedures Remarks
$
%
^
Ass'y Control
PLATE EVAP CASING
&
TRAY DRAIN
Blower
&
Propeller Fan
1. Remove the blade V(and arm blade).
2. Remove 3 screws on the FRAME BLADE.
3. Remove the FRAME BLADE.
4. Remove 1 screw under the Base pan,
and earth wire screw.
5. Remove two lead wire assemblies.
6. Take out the control box forward.
1. Remove 2 screws on the front side.
2. Remove 4 screws on the left side.
3. Pull up the PLATE EVAP CASING and
TRAY DRAIN.
1. Remove 2 screws on the rear side (Base
pan), and 7 screws on the case cond.
2. Pull up the CONDENSER from the Base
pan.
3. Remove the nut, and remove the propeller
fan.
4. Remove the nut, and remove the
BLOWER.
DB98-04511A(1)-1 3/20/02 2:24 PM Page 4-4

Disassembly and Reassembly
Samsung Electronics 4-5
No. Part name Procedures Remarks
&
*
CASE COND
Motor
&
the others parts
1. Remove the CASE COND.
1. Remove 4 screws on the MOTOR, and
remove the motor.
2. Remove 4 screws on the mounter motor,
and remove the mounter motor.
3. Remove the CASE BLOWER.
4. Remove 4 screws on the PARTITION.
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