Samsung ASHM070VE User manual

SERVICE Manual
CONTENTSAIR CONDITIONER
1. Precautions
2.ProductSpecifications
3. OperatingInstructions and
Installation
4.Disassembly and Reassembly
5. Troubleshooting
6. Exploded Views andParts List
7. BlockDiagrams
8. PCBDiagrams
9. Wiring Diagrams
10. Schematic Diagrams
ROOM AIR CONDITIONER
INDOOR UNIT
ASHM070VE
ASHM120VE
OUTDOOR UNIT
AXHM260VE

© Samsung Electronics Co., Ltd. MAY. 1998.
Printed in Korea.
Code No. DB81-10153A(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
them. Using defective tools or test
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 megohms.
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.
Samsung Electronics 1-1
1. Precautions
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

1-2 Samsung Electronics
MEMO

Model
Item
Type -
Cooling BTU/h
Dehumiditying I/h
Heating BTU/h
Low temp. heating BTU/h
Air volume Cooling m3/min
Heating m3/min
Noise Cooling dB
Heating dB
Power V-Hz
Power Cooling W
Consumption Heating W
operating Cooling A
Current Heating A
Power Cooling %
factor Heating %
Starting current A
Power cord
Fuse capacity A
Outer Width x Height mm
dimension x Depth inch
Weight kg
Refrigerant pipe Liquid OD(mm)x L(m)
GAS
Drain hose ID(mm)x L(m )
Compressor Type
Motor Type
Rated output W
Blower Type
Motor Type
Rated output W
Heat exchanger
Refrigerant control unit
Freezer oil capacity
Refrigerant to change(R-22)
Protection device
Cooling test Condition
Heating test Condition
Maximum operation Condition
ASHM260VE
Indoor Unit Outdoor Unit
ASHM120VE ASHM070VE
Wall-Mounting
12,000 7,000 12,000 7,000x2 12,000+7,000x2
1.9 1.2 -
13,000 6,500 13,000 6,500x2 12,000+6,500x2
- - -
7.8 6.0 -
8.2 6.2 -
38 35 56
38 35 56
1 - 220 ~ 240V, ~ 50Hz
35 26 1,320 1,180 2,500
35 26 1,250 1,230 2 350
0.22 0.19 5.8 5.0 10.8
0.22 0.19 5.3 5.3 10.3
- 94.8 98.3 96.4
- 98.2 96.6 95.0
30A
- HO7RNF 2.5
HO5RNF(4G 1mm2)
3.15 3.15 3.15
815x298x182 1000x790x310
32.08x11.73x7.17 39.37x31.10x12.2
9.6 9.6 70.5
ø 6.35x5 ø 6.35x5 -
ø 12.7x5 ø 9.52x5 -
ø 17x2000
- Rotary
- -
- 1210 1210
Cross-fan Cross-fan Propeller
Resin Resin Die casting
35 26 80
2Row 12Step 2Row 30Step
A-UNIT : CAPILLARY TUBE, B/C-UNIT : AUTO EXPANSION VALVE
- 410 410
- 860 1200
- MRA 12030-12008
INDOOR UNIT : DB27°C WB19°C Outdoor Unit : DB35°C WB24°C
INDOOR UNIT : DB20°C Outdoor Unit : DB7°C WB6°C
INDOOR UNIT : DB32°C WB23°C Outdoor Unit : DB43°C WB26°C
Samsung Electronics 2-1
2. Product Specifications
2-1 Table
Perfor-
mance
Power
Size
A-UNIT B/C-UNIT A+B/C UNIT

2-2 Samsung Electronics
2-2 Dimensions
2-2-1 Indoor Unit
2-2-1 Outdoor Unit
Air
in
(Front view) (Remote control)
(Rear view)
(Front view) (Rear view)
1000 335
660
815 182
Air out
Installation plate
58
22

Samsung Electronics 2-3
2-3 Refrigerating Cycle Block Diagram

2-4 Samsung Electronics
MEMO

Samsung Electronics 3-1
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
8
9
10
11
12
13
14
15
NAME OF KEY
MODE
(UP)
(DOWN)
TURBO
OFF
ON TIMER
OFF TIMER
SET
CANCEL
(UP)
Without regard to ON/OFF condition in remote controller,
use this button to set current time.
Adjust the current time using button.
(Data can be transmitted after setting up the time)
If the 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 time increase by one minute
during the time set mode, and ten minutes during the timer set mode.
Use this button to reserve or cancel the timer on and timer off.
Use this button to reserve the timer on.
Set up the time that operation stop.
Set up the time that operation start.
Each time you press this button,
FAN SPEED is changed in the following order.
Adjusts air flow vertically.
Each time you press this button,
BLADE-H rotates by 43° (Rotation range 43°)
If the one more time press the button, blades location is stop.
Use this button for sleep operation.
(The SLEEP mode can be selected at COOL and HEAT mode.)
Set up the reservation or cancel the timer on and timer off quickly
Use this button to provide heavy duty cooling & Heating for 30 minutes.
Each time you press this button,
MODE is changed in the following order.
Temp. up button. If the button is pressed once,
the setting temperature is decreased by 1°C
Temp. up button. If the button is pressed once,
the setting temperature is increased by 1°C
On/Off Button. Use this button to start and stop air conditioner.
FUNCTION OF KEY
(DOWN)
TIME
C
O
V
E
R
T
I
M
E
R

3-2 Samsung Electronics
Operating Instructions and Installation
1. AUTO MODE : In this mode, operation
mode(COOL, HEAT, DRY) is selected auto-
matically by the room temperature of initial
operation.
∆T= -1°, -2°C, 0°C, +1°C, +2°C
∆T is controlled by setting temperature
up/down key of remote controller
2. COOL MODE : The unit operates according
to the difference between the setting and
room temperature. (Setting temperature ;
18°C~30°C)
3. HEAT MODE : The unit operates according
to the difference between the setting and
room temperature.(Setting temperature ;
16°C~30°C)
*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 slow-
ly(510 rpm), then switch to the selected fan
speed. This period is to allow the indoor
unit's heat-exchanger to prewarm before
emitting warm air.
*High temperature release function : The
outdoor unit fan and compressor ON/OFF
control for safety operation, when the heat
exchanger of indoor unit is overheated.
*De-ice : Deicing operation is controlled by
outdoor unit's heat exchanger temperature
and accumulating time of compressor's
operation.
De-ice end by sensing of the processing
time and outdoor unit’s heat exchanger
temperature by de-ice Condition.
4. DRY MODE : Has 3 states, each determined
by room temperature.
The unit operates in DRY mode.
*Compressor ON/OFF Time is controlled
compulsorily(can not set up the fan speed,
always breeze).
*Protective function : Low temperature
release. (Prevention against freeze)
5. TURBO MODE : This mode is available in
AUTO, COOL, HEAT, DRY, FAN MODE.
When this button is pressed at first, the air
conditioner is operated “powerful” state for
30 minutes regardless of the set tempera-
ture, room temperature.
When this button is pressed again, or when
the operating time (30 minutes) is finished,
turbo operation mode is canceled and
returned to the previous mode.
*But, if you press the TURBO button in DRY
or FAN mode that is changed with AUTO
mode automatically.
6. SLEEP MODE : Sleep mode is available
only in COOL or HEAT mode.
The operation will stop after 6 hours.
*In COOL mode : The setting temperature
is automatically raised by 1°C each 1hour
When the temperature has been raised by
total of 2°C, that temperature is main-
tained.
*In HEAT mode : The setting temperature
is automatically droped by 1°C each 1hour.
When the temperature has been droped by
total of 2°C, that temperature is main-
tained.
7. FAN SPEED : Manual (3 step), Auto (4 step)
In Auto mode, fan speed automatically
varies depending on both the difference
between setting and the room temperature.
3-1-1 Name & Function of Key in remote controller
Room Temp
Tr≥21°C+∆T
21°C +∆T>Tr
Operation Type
Cool Operation (Set Temp:AUTO SETTING)
Heat Operation (Set Temp : 22°C+∆T)