Samsung AQV12ACME User manual

SERVIC
AIR CONDITIONER
ROOM AIR CONDITIONER
INDOOR UNIT
AQV12ACME
AQV12ADME
AQV12BCME
AQV12BDME
SH12VAC
SH12VAD
AQVOSACME
AQVO9ADME
AQVO9BCME
AQVO09BDME
SHOSVAC
SHOSVAD
OUTDOOR UNIT
UOV12ACME
UOV12ADME
UOV1Z2BCME
UOQV12BDME
SH12VACX
SH12VADX
UQVOSACME
UQVOSADME
UOVOSBCME
UOVO9SBDME
SHOSVACX
SHOSVADX
Manual
. CONTENTS
1. Precautions
2. Product Specifications
3. Operating Instructions and
Installation
4, Disassembly and Reassembly
5. Troubleshooting
6. Exploded Views and Parts List
7. PCB Diagrams |
8. Wiring Diagrams

1.
10.
Precautions
Warning: Prior to repair, disconnect the
power cord from the circuit breaker.
Use proper parts: Use only exact replace-
ment parts. (Also, we recommend replacing
parts rather than repairing them.)
Use the proper tools: Use the proper tools
and test equipment, and know how to use
them. Using defective tools or test equip-
ment may cause problems later-intermittent
contact, for example.
Power Cord: Prior to repair, check the
power cord and replace it if necessary.
Avoid using an extension cord, and avoid
tapping into a power cord. This practice
may result in malfunction or fire.
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 resis-
tance must be greater than 30 megaohms.
Make sure that the grounds are adequate.
Make sure that the installation conditions
are satisfactory.
Relocate the unit if necessary.
Keep children away from the unit while it is
being repaired.
Be sure to clean the unit and its surround-
ing area.
Fig. 1-4 Clean the Unit
Samsung Electronics
i=]

2-2 Dimensions
2-2-1 Indoor Unit
SSS
(Front view)
245
165
Air out
(Remote control)
‘@
S
1d
S| has
&.
ci)
©
22
}—|
ee ares
2-2 Samsung Electronics

Product Specifications
2-2-2 Outdoor Uni
2-3
(Rear view)
9S¢
ok
LAE
600
(Front view)
Samsung Electronics

2-3 Refrigerating Cycle Block Diagram
INDOOR UNIT OUTDOOR UNIT
:
|
Capillary
tube
|
qT
<
2-way
val
l
!
y
valve
«+
;
Heat
o
|
Heat
o
exchanger
5!
exchanger
o
!
|
(Evaporator)
6
—_
(Condenser)
ey
|
e
c
1
4-way
valve
|
_
~—
Cooling
Compressor
aoe
eeoung
|
~<i%}= Gas leak check point:
i
ee
2-4
Samsung
Electronics

3.
Operating
Instructions
and
Installation
3-1 Operating Instructions
3-1-1
Name
&
Function
of
Key
in
remote
controller
FEATURE OF KEY
Ys g
eases
GAS (UP)
Power
On/Off
button
to
start
and
stop
airconditioner
or
timer
set
up.
Temp.
up
button.
To
increase
the
temperature
by
the
pressing
.
the temperature button.
Temp.
down
button.
To
decrease
the
temperature
by
the
pressing
Yy/
(DOWN)
the
temperature
button.
Each time
you
press
this
button,
(ate:
Auto
Mode
c&
:
Fan
Only
MODE
is
changed
in
the
following
order.
‘
Mode)
el
saa
a
a
%
:CoolMode
%
:
Heat
Mode
frto > % > Fh >
we
7?
O"*
]
&
-:
Dry
Mode
Press
until
the
appearance.
the
air
conditioner
cools
or
heats
the
room
as
quickly
as
possible.
After
30minutes,
the
airconditioner
is
reset
automatically
to
the
previous
mode.
Press
€
until
the
appearance.
the
sleep
timer
can
be
used
when
you
are
cooling
or
heating
your
room
to
switch
the
air
conditioner
off
automatically
after
a
period
of
six
hours.
Each time you press this button,
FAN
SPEED
is
changed
in
the
following
order.
S. > a Sal > ‘hal 4
«az
Adjust air flow vertically.
The
ON
Timer
enables
you
to
switch
on
the
air
conditioner
automatically
after
a
given
period
of
time
that
is
from
30
minutes
to
24
hours.
To
cancel,
press
the
8)
(Set/Cancel)
button.
The
Off
Timer
enables
you
to
switch
off
the
air
conditioner
automatically
after
a
given
period
of
time
that
is
from
30
minutes
to
24
hours.
To
cancel,
press
the
€)(Set/Cancel)
button.
To
select
the
5
way
function
with
the
remote
control,
press
the
(5
way)
button
one
or
more
times
until
the
desired
mode
is
selected.
Each
time
you
press
the
(5
way)
button,
each
5
way
indicator
on
the
indoor
unit
lights
up in order.
@>O©2O7>O@?®
Samsung
Electronics
3-1

Operating Instructions and Installation
3-1-2 Name & Function
1. AUTO CHANGEOVER FUNCTION :
*To operate in the “Auto change over” mode,
set the MODE on “AUTO”.
*According to the outdoor and indoor temper-
atures while starting the operation, one of the
modes from the cooling, dehumidifying and
heating is selected automatically to operate.
*The operation mode shall be set again if the
other condition different from that of the oper-
ating conditions(cooling, heating, dehumidify-
ing mode) is kept for 60 minutes during the
change-over operation.
1) Mode selection for operation start
Indoor
temperature('C)
Cooling
(25°C~28°C)
Heating Dehumidifying
21°C, 23°C)
'
(
18C 21°C Outdoor
temperature(’C)
(_ ) is the set temperature
nC 29°C over 31°C less
Over) 27°C over 29°C less
25°C over 27°C less
25°C less to be set automati-
cally by controller
according to the
indoor temperature
at the operation
start.
to be set automati-
cally by controller
according to the
indoor temperature
at the operation.
start.
18°C over
21°C less
2) Mode selection during the operation
Cooling
(25°C~28'C)
Heating Dehumidifying
(21°C, 23°C)
1 | 21 Outdoor
temperature("C)
(_ ) is the set temperature
31°C over
29°C over 31°C less
27°C over 29°C less
25°C over 27°C less
to be set automati-
cally by controller
according to the
indoor temperature
at the operation
18°C less start.
- 21°C over 23°C less
18°C less mC less
COOL MODE : The unit operates according
to the difference between the setting and
room temperature.(setting Temp.: 18°C~30°C)
HEAT MODE : The unit operates according
to the difference between the setting and
room temperature.(setting Temp.: 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 slowly,
then switch to the selected fan speed. This
period is to allow the indoor unit's heat-
exchanger to prewarm until emitting warm
air.
3-2
Samsung Electronics

*High temperature release function : The
outdoor unit and compressor ON/OFF is
controlled for safety operation when heat
exchanger of indoor unit is over heated.
*De-ice : Deicing operation is controlled by
outdoor unit's heat exchanger temperature
and accumulating time of compressor's
operation.
De-ice ends by sensing of the processing
time by de-ice Condition.
DRY MODE :
*According to the difference between the set
temperature (Ts) and indoor temperature
(Tr), the operation frequency of compressor
is controlled as each area.
(Cooling area/COMP2E ON/OFF
area/Monitoring area) _
Cooling area : same as the cool mode
~» COMP2E ON/OFF area : repeat of
COMP®2 frequency 36[Hz] for 4 minutes
operation /O[Hz](off) for 6 minutes
» Monitoring area : COMP®2 off.
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 in “powerful” state
for 30 minutes regardless of the set temper-
ature, room temperature.
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.
*But, if you press the TURBO button in DRY
or FAN mode, it is changed into AUTO
mode automatically.
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 lhour
When the temperature has been raised by
total of. 2°C, that temperature is main-
tained.
Samsung Electronics
Operating Instructions and Installation
*In HEAT mode : The setting temperature
is automatically droped by 1°C each Lhour.
When the temperature has been droped by
total of 2°C, that temperature is main-
tained. .
FAN SPEED : Manual (3 step), Auto (4 step)
Fan speed automatically varies depending
on the difference between setting and the
room temperature.
COMPULSORY OPERATION :
For operating the air conditioner without
the remote controller, the tact key in indoor
unit can be used.
When started with this key, the mode is set
on “AUTO”.
The operating is the same function as
AUTO MODE in the remote controller.
Each time you press this key, 5WAY
function is changed in the following order;
STD(standard) ~ NATURE —
POWER(High-speed) — Saving(Power-
Saving) + SILENCE
# STD(standard)( ) : General operation
Mode
* NATURE((©) ): The unit is operated
according to health
pattern control
* POWER( () ) : The unit is
operated in
powerful state
* SAVING( @ ): The unit is operated in
power saving state
# SILENCE( (@) ) : The unit is operated
quitely
Each mode has Auto(Cool or Heat) opera-
tion designed in advance.
3-3

Operating Instructions and Installation
9. 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.
remote
control
is
displayed
on
LCD
the
tion
(Indoor-Outdoor
unit)
and
the
blades
move
up
and
down.
If
the
one
Goma
|OOr-
oor uni
X d
more time press the CG) button, blade location
is
stop.
Xx
y__|
Trouble
of
the
control
power
of
the
x Abnormal communication
(Sub-Main micom)
©
.O
@
S
10. 24-Hour ON/OFF Real Setting Timer. : The
air conditioner is turned ON at a specified
time using :
OFF TIMER : The air Conditioner is turned
OFF at a specified time using @im).
*ON TIMER : Only timer LED lights on.
*OFF TIMER : Both timer and operation
LED lights on.
temperature
:
Trouble of DC link voltage circuit
fo] x | Trouble of discharge temp-sensor
(open/short)
‘Trouble of outdoor temp-sensor
i (open/short)
Trouble of de-ice temp-sensor
(open/short)
Trouble of OLP temp-sensor
(open/short)
. | Trouble of AC current sensor
(open/short) and Leakage of refriger-
ant{(R-22)
11. SELF Diagnosis
Indoor unit room temperature sensor
etror(open or short)
Indoor unit heat exchanger tempera-
ture sensor error(open or short)
©|90!/0O
©
Outdoor unit temperature sensor error
{open or short)
- outdoor temp-sensor
- deice
- OLP temp-sensor
ae
ES
©
©
ce)
©
o
discharge temp-sensor
- heatsink temp-sensor
Olxlolx}] x1 x Abnormal communication
(Indoor - Outdoor unit) 12. BUZZER SOUND : Whenever the ON/OFF
Abnormal increase of operation button is pressed or whenever change ~
ISCEX x | x ; ee ite
inseam : occurs to the condition which is set up or
oe ere ae select, the compulsory operation mode,
©
O
OLP
temperature
:
re)
Over
current
of
IPM
circuit
buzzer
is
sounded
"beep".
©
©
| Trouble of the PTC circuit of the out-
_{door
Trouble of AC current sensor(open/
short) and Leakage of refrigerant(R-22)
3-4 Samsung Electronics

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, cord-
less 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 connec-
tion 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 accomo-
date 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 20 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.
—
8.
Make
sure
that
you
install
the
outdoor
unit
in
an
area
which
is
large
enough
to
accom-
modate
the
measurements.
3-2-1(c) Remote Control Unit
1. Make sure that you install the remote con-
trol
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 con-
trol 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 con-
trol 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.
rr
Samsung Electronics
3-5