AH-X13 (serv.man7). Functions — Sharp Air Conditioner Service Manual (repair manual)

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

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

19
AH/AY-X08CR
AH/AY-X10CR
AH/AY-X13CR
AH-X08CR/X10CR/X13CRare not provided with the
heating function.
1. INDOOR UNIT
1-1 Temperature Adjustment
a. Normal control
Proportional control (P control)
When the temperature zone changes, this control
changes the frequency by one rank to move closer
to the set value.
Integral control (I control)
When the temperature zone has set time in the
same zone, this control changes the frequency
by one rank to move closer to the set value.
(Excluding the h zone.)
b. Initial control
The initial frequency is determined as shown in
the tables below based on the difference between
the temperature adjustment setting at the
beginning of operation and the room temperature.
After operation begins, normal control is performed
and therefore the correspondences in the tables
below will not hold.
FUNCTIONS
c. Temperature adjustment
The temperature adjustment range is changed by
changing the operating mode with the operation switch.
(1) Heating
If the room temperature is in the z zone when
operation begins, proportional/integral control is
not performed, and the machine runs at frequency
code c full power until the i zone is reached. When
the i zone is reached, the frequency changes to
the frequency code determined by fuzzy calculation,
and after that proportional/integral control is
performed.
(2) Cooling
If the room temperature is in the c zone when
operation begins,proportional/integral control is not
performed, and the machine runs at frequency
code 9 power until  the i zone is reached. When the
h zone is reached,  the frequency changes to the
frequency code determined by fuzzy calculation,
and after that integral control is performed.
(3) Dry
After operation begins, 2 minutes (running at the h
zone) of the room temperature is stored in memory,
and that becomes the set value.
(4) Circulation
The frequency code 0 is sent to the outdoor
machine, and only the fan of the indoor machine
runs, the compressor does not run.
1-2 Indoor fan control
This control uses the thermistor for the indoor heat
exchanger to control cold air blowing prevention, the
indoor fan, and overheating prevention.
j  
k  
+3.33 
+2.66 
SET VALUE 
-0.66 
-1.66 
+0.66 
+2.00 
Cooling
+1.33 
k
j
i
h
g
f
e
d
c
b
a
z
+1.33
+0.66
-1.33
-2.00
SET VALUE
-3.33
-2.67
-4.00
-4.66
-5.33
Heating
-0.66
+2.00 
+2.66 
+1.33 
-1.00 
+0.66 
-1.33 
Dry
MEMORY SET VALUE
Cooling
Room 
temp. 
zone
Frequency 
Code   
c
9
d
8
e
7
f
5
g
3
h
2
i
1
j
OFF
k
OFF
Heating
Room 
temp. 
zone
Frequency 
Code   
k
OFF
(Hot keep fan)
j
1
i
1
h
2
g
3
f
4
e
5
d
6
e
7
f
5
g
3
h
2
i
1
Dry
Room 
temp. 
zone
Frequency 
Code   
e
4
d
5
f
3
g
2
h2
h1
1
2
i
1
j
0
c
b
a
z
8
A
B
C
Full power 
operation only
Although the initial value 
of the h zone is 1, it changes 
to 2 after a lapse of 15 minutes.
53
50
47
44
38
32
26
H
G
F
E
D
C
B
A
(˚C)
Cold air blowing 
prevention line
Temperature of indoor heat exchanger
Differential
3˚C
20
AH/AY-X08CR
AH/AY-X10CR
AH/AY-X13CR
(1) Control for indoor freezing prevention
If the temperature of the indoor heat exchanger stays
below approximately 0
°
C for four minutes during
cooling or dry, this control stops the compressor. Over
2˚C the compressor will run again.
(2) Control for cold air blowing prevention
When heating begins, this control stops the indoor fan
until the temperature of the indoor heat exchanger
reaches 26
°
C. It also stops the fan if the temperature
goes below 23
°
C during operation.
(3) Indoor fan and operating frequency
The indoor fan has 12 speeds, and changing is done
in four stages, "Auto", "High", "Med", and "Low". The
relations between the indoor fan speed, air quantity
setting, operating frequency, and indoor heat
exchanger are shown in the following charts.
1-3 Hot keep
If the room temperature is in the j or k zone during
heating, the compressor is turned on and off to
prevent overheating.
The fan goes off 30 seconds after the compressor
goes off.
1-4 Automatic operation
The operating mode and temperature setting are
determined by the room temperature and the external
air temperature.
The operating mode will changeover automatically
with the following condition.
1. From cooling to heating
Cooling mode will changeover to heating mode when
condition of indoor temperature 1.7˚C lower than the
set temperature conditions for 5 minutes.
2. From heating to cooling
Heating mode will change over to cooling mode when
condition of indoor temperature 1.3˚C higher than the
set temperature conditions for 25 minutes under Hot
keep condition.
3. When the set temperature is adjusted within the
range of 
±
2˚C by the remote control's key. ( 
),
the changeover judgement room temp. will also be
shifted within the range of 
±
2˚C.
1-5 ON-timer
The ON-timer is set by pressing the ON-timer button.
In order to attain the set temperature at the set time,
the operation starting time is corrected by fuzzy
computing one hour before the set time.
OFF
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
OFF
Fan speed
Frequency cord
Fan speed : High / Med / Low 
High
Med
Low
OFF
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
OFF
Fan speed
Frequency cord
Fan speed : Automatic
COOLING
OFF
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
OFF
Fan speed
Frequency cord
Fan speed : High / Med / Low 
12
A
B
C
A
B
C
Low 
D - H
Med 
D - H
High 
D - H
OFF
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
OFF
Fan speed
Frequency cord
Fan speed : Automatic
12
A
B
C
A
B
C
D
E, F, G, H
HEATING
12
11
10
9
8
7
6
5
4
3
2
1
0
1
2
3
4
5
d
(Full power only)
j
i
h1
h2, g
Dry
Operating frequency code
Fan speed
Zone
Compressor
intermittent time
Fan
After "3 min. on - 3 min.off" is 
repeated 4 times, the compressor 
goes off, and only the fan 
continues to repeat “3 min. on - 8 
min.off”.
J
K
3 min. on - 3 min. off
3 min. on - 8 min. off
Same as Compressor
Heating
(24˚C)
Heating
(23˚C)
Cooling
(24˚C)
Cooling
(24˚C)
(Room temperature 
- 2
°
C)
Cooling
(25˚C)
Cooling
(26˚C)
(Dry)
Room 
temperature
(˚C)
When the cooling operation only can use winter kit
21
29
0
10
18
28
34
Outdoor
temperature (
°
C)
Cooling
(25˚C)
Cooling
(26˚C)
Heating
(22˚C)
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
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