Samsung ASH-0906ER, ASH-1206ER Service Manual
ROOM AIR CONDITIONER
ASH-0906ER
ASH-1206ER
Manual
SERVICE
CONTENTSAIR CONDITIONER
1. Precautions
2. Product Specifications
3. Operating Instructions and
Installation
4. Disassembly and Reassembly
5. Troubleshooting
6. Exploded Views and Parts List
7. Block Diagrams
8. PCB Diagrams
9. Wiring Diagrams
10. Schematic Diagrams
1. Precautions
O.K
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
them. Using defective tools or test
equipment may cause problems laterintermittent 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 megohms.
Fig. 1-1 Avoid Dangerous Contact
Fig. 1-2 No Tapping and No Extension Cords
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. 1-3 No Kids Nearby!
Samsung Electronics
Fig. 1-4 Clean the Unit
1-1
Memo
1-2
Samsung Electronics
2. Product Specifications
2-1 Table
Model ASH-0906ER ASH-1206ER
Item Indoor unit outdoor unit Indoor unit outdoor unit
Type - Wall-mounting Wall-mounting
Cooling BTU/h 9,000 12,000
Dehumiditying I/h 1.7 1.7
Heating BTU/h 10,000 12,500
Low temp. heating BTU/h - -
Performance
Power
Size
Heat exchanger 2Row 11Step 1Row 28Step 2Row 11Step 1Row 28Step
Refrigerant control unit - Freezer oil capacity cc - -
Refrigerant to change(R-22) g 920 1000
Protection device MRA12037 MRA12030
∙Standard Conditions : ISO R5151 standards (indoor: 27℃ DB, 19℃ WB, outdoor: 35℃ DB, 24℃ WB)
Air volume
Noise
Energy Cooling BTU/h.W 10.0 10.0
efficiency ratio Heating BTU/h.W 9.8 9.7
Power ∅-V-Hz 1-220/240-50 1-220/240-50
Power Cooling W 900 1,200
consumption Heating W 940 1,300
Operating Cooling A 4.0 5.0
current Heating A 4.4 5.6
Power
factor
Starting current A 20 25
Power cord Length m 2 - 2 -
Fuse capacity A 3.15 - 3.15 Outer Width x Height mm 925x298x170 530x750x245 925x298x170 530x750x245
dimension x Depth inch
Weight kg 11.5 29 11.9 33
Refrigerant pipe Liquid OD(mm)x L(m) ∅6.35 x 5 ∅6.35 x 5
Drain hose ID(mm) x L(mm) ∅17x 2000 ∅17x 2000
Compressor
Blower
Type - Rotary - Rotary
Motor Type - - - -
Type Cross-fan Propeller Cross-fan Propeller
Motor Type Resin Die casting Resin Die casting
Cooling m3/min 7.0 8.3
Heating m3/min 7.5 8.9
Cooling dB 40 51 40 51
Heating dB 40 51 40 51
Cooling % 93.8 100
Heating % 89 96.7%
Number of core wire 250V 10/16A 250V 10/16A
36.43x11.73x6.69 20.87x29.53x9.65 36.43x11.73x6.69 20.87x29.53x9.65
GAS ∅9.52x 5 ∅12.7x 5
Rated output W - - - -
Rated output W 35 20 35 20
- -12007 - -12008
Samsung Electronics
2-1
2-2 Dimensions
123.5
123.5
37
258.5228.5
142
2-2-1 Indoor Unit
2-2-2 Outdoor Unit
2-2
Samsung Electronics
3. Operating Instructions and Installation
3-1 Operating Instructions
3-1-1 Name & Function of Key in remote controller
NO
1
2
3
4
5
6
7
NAMED OF KEY
ON/OFF
MODE
TURBO
MILD
Q. TIMER
FAN SPEED
SWING
SET
AUTO
FUNCTION OF KEY
Use this button to start and stop air conditioner.
Each time you press this button,
MODE is changed in the following order.
"AUTO" "COOL" "DRY" "FAN" "HEAT"
Use this button to provide heavy duty cooling(heat)
for 30 minutes.
Use this button to provide pleasant cooling(heat)
for 3 hours.
Set up the reserve or cancel the timer on and timer off quickly
Each time you press this button,
FAN SPEED is changed in the following order.
"AUTO" " (L)" " (ME)" " (HI)" NATURAL
Adjusts air flow vertically.
Each time you press this button,
BLADE-H rotates by 11(Changable range 70)
Each time you press this button,
BLADE-H rotates within 35and stop.
ONE SHOT KEY
ONE SHOT KEY
OR
CONTINUOUS KEY
ONE SHOT KEY
ONE SHOT KEY
ONE SHOT KEY
OR
CONTINUOUS KEY
ONE SHOT KEY
OR
CONTINUOUS KEY
ONE SHOT KEY
OR
CONTINUOUS KEY
ONE SHOT KEY
10
11
12
13
8
9
TIME
TIMER/CANCEL
ON
TIMER
OFF
(UP)
TIME
(DOWN)
(UP)
TEMP
(DOWN)
SLEEP
Without regard to ON/OFF condition in remote controller, use
this button to set current time.
Adjust the current time using TIME button.
(Data can be transmitted after setting up the time)
Use this button to reserve or cancel the timer on and timer off.
Set up the time that operation start.
Set up the time that operation stop.
If the TIME button is pressed once, the time increase by one
minute during the time set mode, and ten minutes during the timer
set mode.
If the TIME button is pressed once, the time decrease by one
minute during the time set mode, and ten minutes during the
timer set mode.
If the button is pressed once,
the setting temperature is increased by 1
If the button is pressed once,
the setting temperature is decreased by 1
Use this button for sleep operation.
(The SLEEP mode can be selected at COOL and HEAT mode.)
ONE SHOT KEY
ONE SHOT KEY
ONE SHOT KEY
ONE SHOT KEY
ONE SHOT KEY
OR
CONTINUOUS KEY
ONE SHOT KEY
OR
CONTINUOUS KEY
ONE SHOT KEY
OR
CONTINUOUS KEY
ONE SHOT KEY
Samsung Electronics
3-1
Operating Instructions and Installation
3-1-2 Main controller function.
AUTO MODE : In this mode, operation
mode(COOL, HEAT, DRY) is selected
automatically by the room temperature of
initial operation.
Room Temp
Tr 21+T
21 +TTr
T= -1, -2, 0+1+2
T is controlled by setting temperature
up/down key of remote controller
COOL MODE : The unit operates according
to the difference between the setting and
room temperature.
The setting temperature is compensated by
the room humidity. (18~30)
HEAT MODE : The unit operates according
to the difference between the setting and
room temperature.
The setting temperature is not compensated
by the room humidity. (16~30)
Prevention against cold wind : For about
3~5 minutes after initial operation, thermo
control or de-ice , the indoor fan will either
not operate or operate very slowly(650 rpm),
then switch to the selected fan speed. This
period is to allow the indoor unit's heatexchanger to prewarm before emitting warm
air.
Protective function : High temperature
release.
De-ice : Deicing operation is controlled
by indoor unit's heat exchanger temperature
and room temperature and accumulating
time of compressor's operation.
Cool Operation (Set Temp:AUTO SETTING)
Heat Operation (Set Temp : 22+T)
Operation Type
DRY MODE : Has 4 states, each determined
by room temperature and humidity.
When the room temperature is below the
setting temperature and the room relative
humidity below 60% RH, the unit operates
in FAN mode.
compressor ON/OFF Time is controlled
compulsorily(can not set up the fan speed,
always breeze).
Protective function : Low temperature
release. (Prevention against freeze)
TURBO MODE : This mode is available only
in AUTO, COOL, HEAT mode.
When this button is pressed at first, the air
conditioner is operated powerful state for
30 minutes regardless of the set
temperature, room temperature and
humidity.
When this button is pressed again, or when
the operating time is 30 minutes, turbo
operation mode is canceled and returned to
the previous mode.
MILD MODE : This mode is available only
in AUTO, COOL, HEAT mode
When this button is pressed at first, the air
conditioner is operated in its current state
for 3 hours.
When this button is pressed again or when
the operating time is 3 hours, mild
operation mode is canceled and returned to
the previous mode.
SLEEP MODE : Sleep mode is available
only in COOL or HEAT mode.
The operation will stop after 6 hours.
In COOL mode : The setting temperature
is automatically raised by 1 each 1hour
When the temperature has been raised by
total of 2, that temperature is maintained.
In HEAT mode : The setting temperature
is automatically droped by 1 each 1hour.
When the temperature has been droped by
total of 2, that temperature is maintained.
3-2
Samsung Electronics
Operating Instructions and Installation
DE-ICE Operation : De-ice operation is
controlled by sensing the indoor unit's heatexchanger temperature and timer.
De-ice ends by sensing of the processing
time by de-ice condition.
9. FAN SPEED : Manual (3 step), Auto (5 step),
Natural
Fan speed automatically varies depending
on both the difference between setting and
the room temperature and room humidity.
10. COMPULSORY OPERATION :
For operating the air conditioner without
the remote controller.
AUTO : The operating is the same
function that AUTO MODE in the remote
controller.
11. SWING : BLADE-H is rotated vertically by
the stepping motor.
Memory louver : When ON/OFF button
is pressed at stop state, the BLADE-H
returns to its original location which is
operating state before stop
Swing auto : The BLADE-H can rotate
within about 15in the original position set
by the SWING SET button.
Swing set : Press the SWING SET button,
then the blade rotates vertically by 11
The BLADE-H location is dispalyed on
REMOTE CONTROL. (total 7 steps)
TIMER : The air conditioner is turned
ON/OFF at a specified time using TIMER
ON/OFF.
ON TIMER : Only timer LED lights on.
OFF TIMER : Both timer and operation
LED lights on.
3 minutes delay timer.
SELF TEST
Interruption of electric power and Power
on.
Abnormal condition of the room sensor.
Indoor unit fan motor lock.
Abnormal condition of the indoor unit's
heat exchanger sensor.
TIME SHORTENING : If the "Time short"
connector pin is shorted on the main P. C. B,
the compressor's three minutes delay
function is cancelled, and each operation
time is shortened to one fiftieth of its
original time.
BUZZER SOUND : Whenever the ON/OFF
button is pressed or whenever change
occurs to the condition which is set up or
select, the compulsory operation mode,
buzzer is sounded "beep"
Q.TIMER: Q. timer(quick timer) allows
reservation or cancel the timer on and timer
off quickly
When Q.timer button is pressed at operating
state, LCD displays the polling state
sequentially.
The LCD also displays the time remaining.
Samsung Electronics
3-3
3-2 Installation
3-2-1 Selecting Area for Installation
Select an area for installation that is suitable
to the customer's needs.
3-2-1(a) Indoor Unit
1. Make sure that you install the indoor unit in
an area providing good ventilation. It must
not be blocked by an obstacle affecting the
airflow near the air inlet and the air outlet.
2. Make sure that you install the indoor unit in
an area allowing good air handling and
endurance of vibration of the indoor unit.
3. Make sure that you install the indoor unit in
an area where there is no source of heat or
vapor nearby.
4. Make sure that you install the indoor unit in
an area from which hot or cool air is spread
evenly in a room.
5. Make sure that you install the indoor unit in
an area away from TVs, audio units,
cordless phones, fluorescent lighting
fixtures and other electrical appliances (at
least 1 meter).
6. Make sure that you install the indoor unit in
an area which provides easy pipe connection
with the outdoor unit, and easy drainage for
condensed water.
7. Make sure that you install the indoor unit in
an area which is large enough to
accomodate the measurements shown in
figure on the next page.
3-2-1(b) Outdoor Unit
1. Make sure that you install the outdoor unit
in area not exposed to the rain or direct sun
light.
(Install a separate sunblind if exposed to
direct sun light.)
2. Make sure that you install the outdoor unit
in area allowing good air moment, not
amplifying noise or vibration, especially to
avoid disturbing neighbours.
(Fix the unit firmly if it is mounted in a high
place.)
3. Make sure that you install the outdoor unit
in area providing good ventilation and
which is not dusty. It must not be blocked
by any obstacle affecting the airflow near
the air inlet and the air outlet.
4. Make sure that you install the outdoor unit
in area free from animals or plants.
5. Make sure that you install the outdoor unit
in area not blocking the traffic.
6. Make sure that you install the outdoor unit
in area easy to drain condensed water from
the indoor unit.
7. Make sure that you install the outdoor unit
in area which provides easy connection
within the maximum allowable length of a
coolant pipe(15 meters).
Note
1. Add 10 grams of refrigerant(R-22) for
every 1 meter if the pipe length exceeds
the standard pipe length of 5 meters.
2. Maintain a height between the indoor and
outdoor units of less than 3 meters.
8. Make sure that you install the outdoor unit
in an area which is large enough to
accommodate the measurements
shown in figure on the next page.
3-2-1(c) Remote Control Unit
1. Make sure that you install the remote
control unit in an area free from obstacles
such as curtains etc, which may block
signals from the remote control unit.
2. Make sure that you install the remote
control unit in an area not exposed to
direct sunlight, and where there is no source
of heat.
3. Make sure that you install the remote
control unit in an area away from TVs,
audio units, cordless phones, fluorescent
lighting fixtures and other electrical
appliances (at least 1 meter).
Caution :
It is harmful to the air conditioner if it is used in the following environments: greasy
areas(including areas near machines), salty areas such as coast areas, areas where sulfuric gas is
present such as hot spring areas. Contact your dealer for advice.
3-4
Samsung Electronics
3-2-2 Installation diagram of indoor unit and outdoor unit
1
0
0
m
m
m
in
im
u
m
1
0
0
m
m
m
in
im
u
m
600mm minimum
70mm or more
600mm minimum
450mm or more
400mm or more
Indoor
unit
Piping
Tape Vinyl
Cut the piping hole
sloped slightly
A Indoor unit gas leak test check point
Operating Instructions and Installation
Piping may be laid to the rear, left,
right or down .
B Drain hose installation
B
Right
Rear
Down
A
Remote control
Remote control holder
Left
Rear
Piping (Liquid) 1/4" Clamper tube
Piping (Gas) 1/2" Installation plate
Installation tube Pipe-connection
Vinyl tape Screw
Putty Drain hose
Samsung Electronics
3-5
Operating Instructions and Installation
123.5mm
37mm
142mm
123.5mm
37mm
258.5mm
142mm
400mm
450mm
70mm
123.5mm
228.5mm
410¡›730mm
Screw
3-2-2(a) Cutting a hole and mounting installation plate
CUTTING A HOLE
Installation plate
MOUNTING THE INSTALLATION PLATE
When the installation plate is directly
mounted on the wall.
Pipe hole
(65mm)
Weight
indoor unit
cutting part
installation plate
Pipe hole(65mm)
Anchor bolt
Determine the pipe hole position using
the paper pattern for installation and
drill the pipe hole (65mm inner
diameter) so that it slants slightly
downward.
1. Separate the cutting part of the
installation plate before installing the
installation plate.
2. Install the installation plate
horizontally on structural members
(studs, etc) in the wall.
3. To mount the installation plate on a
20mm
or less
concrete wall with anchor bolts, utilize
the anchor bolt holes as illustrated in
the left figure.
4. When the anchor bolts are already
driven in the wall, also utilize the
anchor bolts holes to secure the
installation plate.(If an anchor bolt is
too long, adjust the projecting length to
20mm or less.)
Mounting at the window frame
Screw wood
3-2-2(b) Wiring connection (indoor unit)
3-6
Wood pillar
1. When mounting installation-plate at
the window frame.
Use the paper patten for installation of
the wood pillar.
410�730mm
2. As the left Fig.
Fix the wood pillar at the wood frame
and install installation-plate with
screw-tap.
3. Fix the wood pillar with enough
strength to bear the weight of the
indoor unit.
1. Open the Grille and remove the screw securing
the cover.
2. Firmly connect the cable connector with ELconnector. (3pin)
3. Assembly every parts by contrary order to
disassembly.
Samsung Electronics
Operating Instructions and Installation
Ditch
Drain hose
Shield
Extension drain hose
5cm less
Assembly
piping
Bush-Body
of the rear body
Bush-Body
of the rear body
Holder pipe
Installation
plate
Assembly Cable
Piping
Drain hose
Piping
Tape
Assembly cable
Drain hose
3-2-2(c) Piping and drain hose installation
1. Fix the drain hose under the refrigerant piping.
2. Be careful not to allow slack of the drain hose.
3. Do not allow the piping to jut out from the back of the indoor
unit.
4. Insulate both of the refrigerant pipes so that dewing and other
problems do not occur.
5. Be careful in bending the pipes. The bending radius must be
100mm or larger.
Right-hand connection with piping Left-hand connection with piping Under-side connection with piping
1. Open the rear right BushBody.
2. Cut out the Holder-pipe slit
part.
3. Support the above section to
be bent with your hand and
bend the pipes there.
3-2-2(d) Indoor unit installation
Hook here
1. Open the rear left Bush-Body.
Set the drain hose in the inner part of the
indoor unit and the assembly cable in
lower part of it. Wind tape round them.
1. Cut out the knock-out piece from the
under side of the rear body with a
knife, etc. Smooth the cut edges.
2. Cut out the holder pipe on its slit part.
DRAINAGE
1. Run the drain hose sloped downward.
2. Do not install the drain hose as illustrated below.
3. Put water in the drain pan and make sure that the water is
drained outdoor.
4. When connecting extension drain hose. insulate the inside
part of extension drain hose with shield.
Pipe holder plate
1. To fix the pipe of the indoor unit with the fixing screw, utilize the pipe holder plate as illustrated in
the figure.
2. Pass the pipes through the hole in the wall, and hook the indoor unit to the installation plate.
3. Move the indoor unit to the right and left to make sure that the unit is securely hooked on to the
Samsung Electronics
installation plate.
3-7
Operating Instructions and Installation
3-2-2(e) Outdoor unit installation
Wiring connection
1. Remove the cover-valve.
2. Firmly connect the cable connector with EL-connector. (4. pin)
3. Fasten the M4 ring terminal to the hole marked
4. Firmly fix the ass'y cable with clamp wire holder.
5. Assemble the cover-valve.
6. To prevent the entry of water, form a trap of the ass'y cable as
illustrated in the installation diagram of indoor and outdoor unit.
EL Connector
Screw
Grounding Screw Hole
Clamp Wire Holder
Installation of drain line
In heating and de-ice operation, condensed water may be generated.
Install drain line as following procedure.
1. Insert drain plug into hole and then connect drain hose to drain plug.
*Inside diameter of drain hose is 18mm
Drain hole
Drain plug
Grounding
(The parts for this work are optional)
The grounding screw hole is located in the position shown.
A grounding terminal can be found on the outdoor unit as
illustrated.
Grounding screw hole
3-8
Samsung Electronics
3-2-2(f) Flare Modification
Inclined Surface
damaged
Cracked Uneven
thickness
D
A
90
Slanted
Rough
● Tools used
Flare modification procedure
Operating Instructions and Installation
1) Cut the pipe using a pipe cutter.
3) Insert a flare nut into the pipe and
modifty flare.
2) Remove burrs at the tip of the pipe cut.
Caution : Burrs not removed may result in
leakage of gas.
Pipe
Reamer
Outer diameter A(mm)
∅6.35mm 1.3
∅9.52mm 1.8
∅12.7mm 2.0
Samsung Electronics
* Unproper flaring
3-9
Operating Instructions and Installation
A
B
C
D
3-2-2(g) Air-Purge Procedure
Use the refrigerant of the outdoor unit to purge air inside indoor unit and pipe.
1. Remove the caps from the 2-way valve(B)
and the 3-way valve(A).
2 Turn the 2-way valve cock approx. 45°
counterclockwise to open it. Close it
about 10 seconds later.
3 Check refrigerant leakage of each joint parts
(A, B, C & D in right figure)
Ieaking
2-Way Valve
3-Way Valve
Leaking
not
leaking
If leaking, tighten the flare nut one more time.
If continues to leak, although the pipe fixing
area has been tightened again,
repair the leaking area.
4. Open the 2-way valve again.
5. Open the service valve cap of the 3-way
valve and press the needle valve to
discharge gas for 3 seconds and leave it
for about 1 minute.
Repeat the above procedure for 3 times
to purge air.
6. Open the 2-way valve and 3-way valve
completely
Valve
body
Valve
Stem
Liquid pipe side
Flare nut
Stopper
Valve Stem cap
Indoor Unit
Half union
Gas pipe side
7. Close the cap of each valve.
8. Check each valve for leakage.
3-10
2-way valve
3-way valve
Outdoor Unit
Samsung Electronics
Operating Instructions and Installation
3-2-2(h) Refrigerant Refill
● Refill an air-conditioner with refrigerant when refrigerant has been leaked at installing or using
1. Purge air(for new installation only).
2. Turn the 3-way valve clockwise to close,
connect the pressure gauge(low
pressure side) to the service valve, and
open the 3-way valve again.
3. Connect the tank to refill with Refrigerant
4. Set the unit to cool operation mode.
5. Check the pressure indicated by the
pressure gauge(low pressure side).
* Standard pressure is should be
4.5~5.5kg/cm
2
in a reqular, high operation
mode.
6. Open the refrigerant tank and fill with
refrigerant until the rated pressure is
reached.
* It is recommended not to pour the
refrigerant in too quickly, but gradually
while operating a pressure valve.
7. Stop operation of the air conditioner.
2-Way Valve
Compound
gauge
For mounting
other and of
hose when
not in use
←Suspension hook
High
pressure
gauge
Charging
line
Hand
wheel
←Finger tight
fittings
Connected to
high pressure
side
R-22
8. Close the 3-way valve, disconnect the
pressure gauge, and open the 3-way
valve again.
9. Close the cap of each valve.
Samsung Electronics
3-Way Valve
3-11
Operating Instructions and Installation
3-2-2(i) Refrigerant Adjustment
Class
Connection
Pipe Length
5m Max.
5~10m
Air-Purge
Method
Refer to the
detailed Air-Purge
Procedure
3-2-2(j) Flare unt fixing torque
Outter diameter
6.35 (9000Btu, 12000Btu)
(Liquid Side)
9.52 (9000Btu)
(Gas Side)
At installation
Refrigerant
Adjustment
Unnecessary
Add 10g of refrigerant
(R-22) for every 1m.
At service
Air-Purge
Method
Purge air using a
vaccum pump
or an additional
refrigerant cylinder.
Torque (kg-cm)
Fixing Torque Final Torque
160
300
Refrigerant
Quantity
refer to
specification sheet
Add 10g of refrigerant
(R-22) for every 1m.
200
350
12.7 (12000Btu)
(Gas Side)
500
550
3-12
Samsung Electronics
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