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Model
AH-X13 (serv.man7)
Pages
6
Size
60.76 KB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner / Functions
File
ah-x13-sm7.pdf
Date

Sharp AH-X13 (serv.man7) Service Manual ▷ View online

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.
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.
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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