DOWNLOAD Sharp AU-X08 (serv.man8) Service Manual ↓ Size: 60.76 KB | Pages: 6 in PDF or view online for FREE

Model
AU-X08 (serv.man8)
Pages
6
Size
60.76 KB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner / Functions
File
au-x08-sm8.pdf
Date

Sharp AU-X08 (serv.man8) Service Manual ▷ View online

21
AH/AY-X08CR
AH/AY-X10CR
AH/AY-X13CR
compressor chamber temperature rises above 25
°
C.
Preheat does not operate for 2 hours after heating
is stopped. After that, it goes on for 180 minutes
and then stops for 30 minutes, repeatedly.
1-6 OFF-timer
The OFF-timer is set by pressing the OFF-timer
button. Operation is as follows:
*During Cooling / Dry
1-7 Swing louvres
Louvres are moved by a stepping motors to perform
swing and fixing in the set position. If the "FLOW
DIRECTION" button is pressed during swing, they
will stop. If the "FLOW DIRECTION" button is pressed
while they are stopped, they will swing.
1-8 Restart control
Once the compressor stops, this control prevents it
from starting again for 3 minutes. It also prevents
starting for 80 seconds immediately following plugging
into the power outlet.
1-9 One-hour operation
If this button is pressed when operation is stopped,
operation will begin and then stop after 1 hour. If
pressed when it is operating, will stop after one hour.
1-10 Full power operation
Immediately begins cooling or heating at maximum
power and air flow.
(During heating)
Operates at setting of 32
°
C.
(During cooling)
Operates at setting of 18
°
C.
1-11 Preheat
When heating is stopped, supplies a small amount
of power to the compressor to make heating start
more quickly. Operates when the indoor temperature
sensor and external air sensor detect that the room
temperature and outdoor temperature are low (below
18
°
C and 5
°
C, respectively). Stops when the
*During Heating
1-12 Power ON start
If a jumper wire is inserted into the place indicated
JP99 on the indoor control board, and the power
plug is inserted. cooling or heating will be
automatically determined by the room temperature
sensor on the main unit, and operation will begin.
1-13 Compressor relay
(1) It is ON during operation, and when operation is
stopped, goes OFF after a delay of 100 seconds
(not immediately).
(3) If air conditioner operation is turned on again
during the 100 second delay before the
compressor relay goes off, the compressor relay
will stay on.
(2) The minimum OFF time of the relay is 80 seconds.
It will not go ON again before 80 seconds elapses.
1-14
Power selector (AY-X13CR, AH-X13CR)
Operation power "H " (High) or "L" (Low) can be
selected by switching the POWER SELECTOR
slide switch located above the AUX. button.
Cooling
Heating
Set temperature
By fuzzy computing
Set the shift up time
Cooling setting + 1
°
C
Heating setting - 3
°
C
Final
Dry
Same as above 
(Final setting + 1
°
C)
3
°
C
Room 
temperature
Timer set time
1
hour
Timer operation starts
Stops
1
°
C
Stops
Timer set time
1
hour
Timer operation starts
Room 
temperature
30
min
180
min
At least 
120 min
Air conditioner OFF
ON
OFF
OFF
Air conditioner
operation
Compressor 
relay
100 sec.
ON
ON
ON
OFF
ON
OFF
Air conditioner
operation
Compressor 
relay
100 sec. 80 sec.
ON
ON
OFF
ON
ON
Air conditioner
operation
Compressor 
relay
100 sec.
Power 
select
Cooling
Heating
H
7.9A
10.5A
6.1A
7.2A
7.9A
6.1A
L
AY-X13CR
AH-X13CR
H
L
22
AH/AY-X08CR
AH/AY-X10CR
AH/AY-X13CR
informed by the flashing number as well as the
lighting pattern of the operation lamp which
flashes with the timer lamp.(For details, refer to
Error diagnostic method.)
AU-X08CR/10CR/13CR are not provided with
the heating function.
2. OUTDOOR UNIT
2-1 Defrost operation (AE-X08CR/X10CR/13CR)
(1) Overview
Defrosting begins during heating if the conditions for
compressor operation time and outdoor heat
exchanger temperature are met.
When defrosting begins, the indoor and outdoor fans
stop. Defrosting stops when the temperature of the
outdoor heat exchanger goes above approximately
5˚C or defrosting time exceeds 13 minutes.
1-15
Auto Restart
When power failure occures, after power is
recovered, the unit will automatically restart in the
same setting which were active before the power
failure.
Operating mode (Cool, Heat, Dry)
 Temperature adjustment (within 2˚C range)
automatic operation
 Temperature setting
 Fan setting
 Air flow direction
 Power ON/OFF
 Automatic operation mode setting
 Swing louver
Setting not memorized
 Timer setting
 Full power setting
1-16  Indoor/outdoor temperature display
Every time the Temperature check button is
pressed on the remote control, the display changes
in the order of indoor temperature 
 outdoor
temperature 
 no display. The temperature is
displayed on the temperature indicator on the main
unit to be referred to for energy saving.
(When the unit is not running, the display changes
between indoor temperature and no display.)Indoor
temperature is the temperature of the suction air
measured by the room thermistor, and outdoor
temperature is that measured by the outdoor
temperature thermistor. When indoor temperature
is displayed, the indoor LED on the main unit is lit,
and when outdoor temperature is displayed, the
outdoor LED is lit. For 90 seconds after the
operation starts, - - is displayed instead of the
actual outdoor temperature since it is still being
measured.Because of the effect of the exchanger,
the unit cannot confirm the exact indoor
temperature right after the operation is terminated.
Therefore, for one hour since the operation is
stopped, the indoor temperature immediately before
the operation is stopped is displayed. After over
one hour since it is stopped, the unit displays the
actual room temperature at that point.
1-17 Error diagnostic display
(a) Indoor unit
(1) When an error is detected, all relays are
turned off. At the same time, the details of the
error are displayed by flashing the number
corresponding to the type of the error. The
details can also be displayed by pressing down
the emergency operation switch for 5 seconds
or more in the state of operation stop.However,
if the operation is continued only in the serial
open state and the state remains unchanged
after that, the main relay is turned off in 8
minutes. In the serial short state, the error is
not displayed and the operation is continued. If
the unit stays in the same state, the main relay
is turned off in 8 minutes. Although the error is
not displayed, it is memorized and can be
displayed when it is recalled.
(2) If the operation is stopped and the emergency
operation button is pressed down for 5 seconds
or more, the self-diagnosis memory can be
recalled.
(3) Details of self-diagnosis (error mode) are
Defrost 
mask time
Defrost 
mask time
Defrost 
mask time
Heating
begins
Defrosting
Max. 13 min.
Defrosting
Max. 13 min.
More than  
20 min.
More than  
20 min.
Defrosting
Max. 12 min.
Heating 
operation 
start
Defrosting
Max. 12 min.
More than 
20 min.
(3) During defrosting
When defrosting begins, the compressor stops.
Approximately 1 minute later, the compressor
reactivates in the refrigeration cycle, and the outdoor
heat exchanger is defrosted.
Each mode is as follows:
The outdoor fan is stopped
The operating frequency is as shown in the table
below The indoor fan is stopped.
The 4-way valve is OFF.
2)  Defrosting
If the compressor operation time is more than 20
minutes in the heating mode and the outdoor air
temperature and outdoor heat exchange temperature
satisfy the defrosting conditions, the defrosting
operation is started.
When the outdoor sheat-exchanger temperature
reaches approx. 7
°
C or above or when the defrosting
time exceeds 13 minutes, the defrosting operation is
quit.
AE-X08CR
for 5 minutes
after 5 minutes
51.667
51.667
62.500
62.500
83.750
83.750
AE-X10CR
AE-X13CR
23
AH/AY-X08CR
AH/AY-X10CR
AH/AY-X13CR
(4) Defrost stop
When defrosting time exceeds 13 minutes When the temperature of the outdoor heat exchanger rises above
approximately 7˚C Defrost stop is determined by either of the above conditions, and the compressor is stopped. At
the same time, the outdoor fan go ON. The compressor is reactivated in the heating cycle 1 minute after it was
stopped, and normal control resumes.
2-2 Frequency control
(1) AC current peak control
(2) Control for prevention of indoor heat exchanger overheating.
If the temperature of the indoor heat exchanger exceeds the overheating prevention line 1 or 2 during heating, the
operating frequency is lowered by approximately 5 to 10 Hz. After that, the frequency is lowered by approximately
5Hz once every 60 seconds or 10 Hz once every 60 seconds. When the temperature of the indoor heat exchanger
goes below the overheating prevention line 1, the frequency is raised by approximately 5 Hz once every 60
seconds, and normal operation is restored.
If the frequency is lowered to minimum frequency  without the temperature of the outdoor heat exchanger
decreasing and this condition lasts for 1 minute, the compressor will be stopped.
(3) Control for prevention of outdoor heat exchanger overheating.
If the temperature of the outdoor heat exchanger exceeds the overheating prevention line 1 or 2 during cooling, the
operating frequency is lowered by approximately 5 to 15 Hz.
After that, the frequency is lowered by approximately 5 once every 60 seconds or approximately 15Hz once every
60 seconds. When the temperature of the outdoor heat exchanger goes below the overheating prevention clear
line, the frequency is raised by approximately 5 Hz once every 60 seconds, and normal operation is restored. If the
frequency is lowered to minimum frequency without the temperature of the outdoor heat exchanger decreasing and
this condition lasts for 1 minute, the compressor will be stopped.
4)
Control for prevention of discharge overheating
If the discharge temperature exceeds approximately 105
°
C during compressor operation, the operating frequency
is lowered by approximately 5 Hz.  After that, the frequency is lowered by approximately 5 Hz once every 60
seconds. When the discharge temperature goes below approximately 104
°
C, the frequency is raised by approximately
5 Hz once every 60 seconds, and normal operation is restored.
If the frequency is lowered to minimum frequencywithout the discharge temperature decreasing and this condition
lasts for 1 minute, the compressor will be stopped.
(5) Control for prevention of indoor heat exchanger freezing
If the temperature of the indoor heat exchanger goes below approximately 5
°
C during cooling(only Full power
operation), the operating frequency is lowered by approximately 5 Hz.  After that, the frequency is lowered by
approximately 5 Hz once every 60 seconds. When the temperature of the indoor heat exchanger rises above
approximately 5
°
C, the frequency is raised by approximately 5 Hz once every 60 seconds, and normal operation is
restored.
If the temperature of the indoor heat exchanger goes down to approximately 0
°
C and this condition continues for
4 minutes, the compressor is stopped.
When the temperature rises above approximately 2˚C, normal operation is restored.
M o d e l
S e t   v a l u e
C o o l
H e a t
6 . 2 A
6 . 7 A
5 . 3 A
5 . 4 A
7 . 9 A
1 0 . 5 A
A E - X 0 8 C R
A E - X 1 0 C R
A E - X 1 3 C R
M o d e l
S e t   v a l u e
C o o l
5 . 3 A
6 . 2 A
7 . 9 A
A U - X 0 8 C R
A U - X 1 0 C R
A U - X 1 3 C R
55˚C
57˚C
54˚C
Lower 5Hz once every 60 seconds
Lower 15Hz once every 60 seconds
Overheating prevention line 1
Overheating prevention line 2
Overheating prevention clear line
Overheating prevention line 1 (Lower 5Hz)
44.84
47.39
AE-X08CR
AE-X10CR
AE-X13CR
[˚C]
[˚C]
130Hz ~
44.84
47.39
51.87
50.95
105Hz ~
112Hz
112Hz ~
130Hz
53.29
54.26
97Hz ~
105Hz
54.26
57.27
50Hz ~
97Hz
53.29
55.74
 43Hz ~
50Hz
52.34
54.75
37Hz ~
43Hz
   ~ 37Hz
AE-X08CR
AE-X10CR
AE-X13CR
130Hz ~
105Hz ~
112Hz
112Hz ~
130Hz
97Hz ~
105Hz
50Hz ~
97Hz
 43Hz ~
50Hz
37Hz ~
43Hz
   ~ 37Hz
44.84
46.53
Operating frequency
During normal operation
During full power operation
Overheating prevention line 2 (Lower 10Hz)
49.59
51.87
[˚C]
[˚C]
49.59
51.87
53.29
53.74
56.25
58.85
57.27
59.94
56.25
58.85
55.24
57.27
47.39
49.14
Operating frequency
During normal operation
During full power operation
24
AH/AY-X08CR
AH/AY-X10CR
AH/AY-X13CR
2-3 Overcurrent protection
(1) AC overcurrent detection
To protect against overcurrent due to sudden changes in load, the compressor is stopped if the set value AC :
12.5A  is exceeded in the AC section. In this case, the outdoor fan does not stop, and 170 seconds after operation
is stopped, another try will be made. Three retries are allowed. On the fourth retry, a complete stop request signal
is sent to the indoor unit, and the outdoor unit will remain stopped until reset is performed. At this time, the 3-
minutes delay for control of the outdoor unit will not function; therefore, do not cancel by removing the plug and
cutting the power.
(2) DC overcurrent detection
To protect against overcurrent due to sudden changes in load, the compressor is stopped if the set value DC : 23A)
is exceeded in the DC section. In this case, the outdoor fan does not stop, and 170 seconds after operation is
stopped, another try will be made. Seven retries are allowed. On the eight retry, a complete stop request signal is
sent to the indoor unit, and the outdoor unit will remain stopped until reset is performed. At this time, the 3-minutes
delay for control of the outdoor unit will not function; therefore, do not cancel by removing the plug and cutting the
power.
2-4 Compressor protector control
If the temperature of the compressor chamber exceeds 114
°
C, the compressor is stopped. In this case, the outdoor
fan does not stop, and when the compressor chamber temperature decreases to 100
°
C three minutes after
operation is stopped, another try will be made. Three retries are allowed. On the fourth retry, a complete stop
request signal is sent to the indoor unit, and the outdoor unit will remain stopped until reset is performed. At this
time, the 3-minute delay for control of the outdoor unit will not function; therefore, do not cancel by removing the
plug and cutting the power.
2-5 Power transistor module protector
If the temperature of the heat-sink exceeds 90 
°
C, the compressor is stopped.
In this case, the outdoor fan does not stop, and when the temperature of the heat-sink decreases to 80 
°
C  170
seconds after operation is stopped, another try will be made.
Three retries are allowed. On the fourth retry, a complete stop request signal is sent to the indoor unit, and the
outdoor unit will remain stopped until reset is performed. At this time, the 3-minutes delay for control of the outdoor
unit will not function; therefore, do not cancel by removing the plug and cutting the power.
Also if the temperature of the heat-sink exceeds 100˚C, a complete stop request signal is sent to the inddor unit,
and the outdoor unit will remain stopped until reset is performed. At this time, the 3-minutes delay for control of the
outdoor unit will not function ; therefore, do not cancel by removing the plug and cutting the power.
2-6 Power factor module
If a voltage error (over 420V) is detected at power factor module output voltage, 170seconds the compressor is
stopped.
In this case, the outdoor fan does not stop, and 170 seconds after operation is stopped, another try will be made.
Three retries are allowed. On the fourth retry, a complete stop request signal is sent to the indoor unit, and the
outdoor unit will remain stopped until reset is performed. At this time, the 3-minute delay for control of the outdoor
unit will not function; therefore, do not cancel by removing the plug and cutting the power.
2-7 Serial signals
(1) Serial signals consist of all 96-bit signals.
(2) If the outdoor unit does not receive a serial signal, it will stop approximately 30 seconds later. Note that this is true
only of normal operation; in test mode, it does not stop and operation takes place based on the test mode
commands.
2-8 Rotation abnormal detection of compressor rotation
If the position detection cannot be performed during feedback operation of compressor operation, operation of the
compressor stopped.
In this case, the outdoor fan does not stop, and 170 seconds after operation is stopped, another try will be made.
Seventh retries are allowed. On the eight retry, a complete stop request signal is sent to the inddor unit, and the
outdoor unit will remain stopped until reset is performed. At this time, the 3-minutes delay for control of the outdoor
unit will not function ; therefore, do not cancel by removing the plug and cutting the power.
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Sharp AU-X08 (serv.man8) Service Manual ▷ Download

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  • Here you can View online or download the Service Manual for the Sharp AU-X08 (serv.man8) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp AU-X08 (serv.man8) Air Conditioner. Information contained in Sharp AU-X08 (serv.man8) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.