Sharp AY-XP10CR (serv.man8) Service Manual ▷ View online
16
AY-XP08CR
AY-XP10CR
AY-XP13CR
AY-XP10CR
AY-XP13CR
FUNCTIONS
1. INDOOR UNIT
1-1 Temperature Adjustment
1-1 Temperature Adjustment
(1) Cooling
When the room temperature is higher than the preset
temperature by 2˚C or more, the unit runs at the
maximum operation frequency until the temperature
comes down to the preset temperature.
When reaching the preset temperature, the unit runs
at the frequency calculated by the fuzzy operation
and switches to the normal control.
temperature by 2˚C or more, the unit runs at the
maximum operation frequency until the temperature
comes down to the preset temperature.
When reaching the preset temperature, the unit runs
at the frequency calculated by the fuzzy operation
and switches to the normal control.
(2) Heating
When the room temperature is lower than the preset
temperature by 3.5˚C or more, the unit runs at the
maximum operation frequency until the temperature
comes down to the preset temperature.
When reaching the preset temperature, the unit runs
at the frequency calculated by the fuzzy operation
and switches to the normal control.
temperature by 3.5˚C or more, the unit runs at the
maximum operation frequency until the temperature
comes down to the preset temperature.
When reaching the preset temperature, the unit runs
at the frequency calculated by the fuzzy operation
and switches to the normal control.
(3) Dry
After operation begins, 2 minutes of the room
temperature is stored in memory, and that becomes
the set value.
temperature is stored in memory, and that becomes
the set value.
1-2 Indoor fan control
(1) Cooling
The fan speed can be selected from "Auto",
"Soft", "Low",and "HIgh".When "Soft", "Low" or
"HIgh" is selected, the fanspeed is constant
regardless of the room temperature.When "Auto"
is selected, the fan speed automatically changes
between "Soft" and "HIgh" depending on the
d i f f e r e n c e b e t w e e n t h e r o o m a n d p r e s e t
temperature.
Control for indoor freezing prevention
If the temperature of the indoor heat exchanger
stays below approximately 1˚C for four minutes
during cooling or dry, this control stops the
compressor. Over 3˚C the compressor will run
again.
"Soft", "Low",and "HIgh".When "Soft", "Low" or
"HIgh" is selected, the fanspeed is constant
regardless of the room temperature.When "Auto"
is selected, the fan speed automatically changes
between "Soft" and "HIgh" depending on the
d i f f e r e n c e b e t w e e n t h e r o o m a n d p r e s e t
temperature.
Control for indoor freezing prevention
If the temperature of the indoor heat exchanger
stays below approximately 1˚C for four minutes
during cooling or dry, this control stops the
compressor. Over 3˚C the compressor will run
again.
(2) Heating
Control for cold air blowing prevention
When heating begins, this control stops the
indoor fan until the temperature of the indoor heat
exchanger reaches 23˚C. It also stops the fan if
t h e t e m p e r a t u r e g o e s b e l o w 2 1 ˚ C d u r i n g
operation.
When heating begins, this control stops the
indoor fan until the temperature of the indoor heat
exchanger reaches 23˚C. It also stops the fan if
t h e t e m p e r a t u r e g o e s b e l o w 2 1 ˚ C d u r i n g
operation.
1-3 Hot keep
If the room temperature is enough high during heating,
the compressor is turned on and off to prevent
overheating.
The fan goes off 30 seconds after the compressor
goes off.
the compressor is turned on and off to prevent
overheating.
The fan goes off 30 seconds after the compressor
goes off.
The indoor fan stops.
Temperature of the indoor heat exchanger
Preset Fan speed
The indoor fan operates at low speed.
35˚C
23˚C
32˚C
21˚C
1-4 Automatic operation
The operating mode and temperature setting are
determined by the room temperature and the external
air temperature.
determined by the room temperature and the external
air temperature.
The operating mode will changeover automatically
with the following condition.
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.
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.
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 neuro and
fuzzy computing one hour before the set time.
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 neuro and
fuzzy computing one hour before the set time.
Compressor
intermittent time
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”.
repeated 4 times, the compressor
goes off, and only the fan
continues to repeat “3 min. on - 8
min.off”.
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)
temperature
(˚C)
When the cooling operation only can use winter kit
21
29
0
10
18
28
34
Outdoor
temperature (
temperature (
°C)
Cooling
(25˚C)
Cooling
(26˚C)
Heating
(22˚C)
17
AY-XP08CR
AY-XP10CR
AY-XP13CR
AY-XP10CR
AY-XP13CR
1-6 OFF-timer
The OFF-timer is set by pressing the OFF-timer
button. Operation is as follows:
button. Operation is as follows:
1-8 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.
operation will begin and then stop after 1 hour.
If pressed when it is operating, will stop after one
hour.
1-9 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.
power and air flow.
(During heating)
Operates at setting of 32 ˚C.
(During cooling)
Operates at setting of 18 ˚C.
1-10 Power ON start
If a jumper wire is inserted into the place indicated
JP99 on the indoor control board, and the circuit
breaker is turn ON. Coolng or heating will be
automatically determined by the room temperature
sensor on the main unit, and operation will begin.
JP99 on the indoor control board, and the circuit
breaker is turn ON. Coolng or heating will be
automatically determined by the room temperature
sensor on the main unit, and operation will begin.
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
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.
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
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.
1-12
Power selector [AY-XP13CR]
Operation power “H “ (High) or “L” (Low) can be
selected by switching the POWER SELECTOR
slide switch located above the AUX. button.
Operation power “H “ (High) or “L” (Low) can be
selected by switching the POWER SELECTOR
slide switch located above the AUX. button.
*During Heating
Cooling
Heating
Heating
Set temperature
By fuzzy computing
Set the shift up time
Set the shift up time
Cooling setting + 1
°C
Heating setting - 3
°C
Final
Dry
Same as above
(Final setting + 1
(Final setting + 1
°C)
*During Cooling / Dry
1-7 Swing louvre
The louvre is moved by a stepping motor to perform
swing and fixing in the set position.
If the "FLOW DIRECTION" button is pressed during
swing, it will stop. If the "FLOW DIRECTION" button
is pressed while it is stopped, it will swing.
The vertical adjustment louvre will change its angle
continuously.
Press the SWING button again when the vertical
adjustment louvre is at the desired position.
• The louvre will stop moving within the range shown
swing and fixing in the set position.
If the "FLOW DIRECTION" button is pressed during
swing, it will stop. If the "FLOW DIRECTION" button
is pressed while it is stopped, it will swing.
The vertical adjustment louvre will change its angle
continuously.
Press the SWING button again when the vertical
adjustment louvre is at the desired position.
• The louvre will stop moving within the range shown
in the diagram.
• The adjusted position will be memorized and will
be automatically set to the same position when
operated the next time.
operated the next time.
1
°C
Stops
Timer set time
1
hour
Timer operation starts
Room
temperature
temperature
3
°C
Room
temperature
temperature
Timer set time
1
hour
Timer operation starts
Stops
1-13
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.
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 louvre
Fan setting
Air flow direction
Power ON/OFF
Automatic operation mode setting
Swing louvre
Setting not memorized
Timer setting
Full power setting
Full power setting
COOL and DRY modes
HEAT and FAN ONLY mode
The adjustment range
is narrower the SWING
range in order to pre-
vent condensation from
dripping.
is narrower the SWING
range in order to pre-
vent condensation from
dripping.
The range is wide so the
air flow can be directed
toward the floor.
air flow can be directed
toward the floor.
Adjustment range
Power
select
Cooling
Heating
H
7.9A
10.5A
6.1A
7.2A
L
EWI130H
18
AY-XP08CR
AY-XP10CR
AY-XP13CR
AY-XP10CR
AY-XP13CR
1-14 Indoor/outdoor temperature display
Every time the Temperature check button is pressed
on the remote control, the display changes in the
o r d e r o f i n d o o r t e m p e r a t u r e
on the remote control, the display changes in the
o r d e r o f i n d o o r t e m p e r a t u r e
o u t d o o r
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
s i n c e t h e o p e r a t i o n i s s t o p p e d , t h e i n d o o r
temperature immediately before the operation is
stopped is displayed. After over one hour since it is
s t o p p e d , t h e u n i t d i s p l a y s t h e a c t u a l r o o m
temperature at that point.
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
s i n c e t h e o p e r a t i o n i s s t o p p e d , t h e i n d o o r
temperature immediately before the operation is
stopped is displayed. After over one hour since it is
s t o p p e d , t h e u n i t d i s p l a y s t h e a c t u a l r o o m
temperature at that point.
1-15 Error diagnostic display (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.
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.
or more, the self-diagnosis memory can be
recalled.
(3) Details of self-diagnosis (error mode) are
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.)
lighting pattern of the operation lamp which
flashes with the timer lamp.(For details, refer to
Error diagnostic method.)
1-16 Compressor relay
(1) It is ON during operation, and when operation is
stopped, goes OFF after a delay of 100 seconds
(not immediately).
(not immediately).
(2) The minimum OFF time of the relay is 80 seconds.
It will not go ON again before 80 seconds elapses.
(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.
relay goes off, the compressor relay will stay on.
ON
OFF
OFF
Air conditioner
operation
operation
Compressor
relay
relay
100 sec.
ON
ON
ON
OFF
ON
OFF
Air conditioner
operation
operation
Compressor
relay
relay
100 sec. 80 sec.
ON
ON
OFF
ON
ON
Air conditioner
operation
operation
Compressor
relay
relay
100 sec.
1-17 DESCRIPTION OF ODOR SENSOR
(1) Outline of the odor sensor
The odor sensor is used to cluster display during
operation. This odor sensor sensitively reacts to
the various air contaminations such as a volatile
organic solvent, fragrant materials and tabacco
burning gas. In the figure on the right, RS
indicates a sensor resistance, RL a load
resistance, VRS a sensor output voltage, and
VC a sensor power supply voltage. Their
relation is expressed in the following formula.
When the air contamination level increases, the
value of the sensor resistance RS drops, which
also lowers the value of the sensor output
voltage.
operation. This odor sensor sensitively reacts to
the various air contaminations such as a volatile
organic solvent, fragrant materials and tabacco
burning gas. In the figure on the right, RS
indicates a sensor resistance, RL a load
resistance, VRS a sensor output voltage, and
VC a sensor power supply voltage. Their
relation is expressed in the following formula.
When the air contamination level increases, the
value of the sensor resistance RS drops, which
also lowers the value of the sensor output
voltage.
While detecting contamination, the microcomputer
outputs the following pulse to the transistor Q8,
which drives the heater with the built-in odor sensor
using the pulse.
outputs the following pulse to the transistor Q8,
which drives the heater with the built-in odor sensor
using the pulse.
512(
µs)
12.8(ms)
Basic circuit
Microcomputer
output
output
Microcomputer
input
input
Odor sensor
3
1
2
R
RL
C31
R41
R65
R64
R52
C32
Q7
Q8
R66
5V
S
V
RS
V
C
V
RS =
C
R
V
S
R
L +
R
S
19
AY-XP08CR
AY-XP10CR
AY-XP13CR
AY-XP10CR
AY-XP13CR
High (85%)
Standard (80%)
Low (75%)
Standard (80%)
Low (75%)
15k
Ω
15k
Ω
13k
Ω
13k
Ω
R7
R6
P.W.B.
What to Odor Sensor react to ?
Odor Sensor also may react to vapour of insecticides, cosmetics, alcohol, hemicals and the like, and to extreme change
of temperature / humidity.
Odor Sensor also may react to vapour of insecticides, cosmetics, alcohol, hemicals and the like, and to extreme change
of temperature / humidity.
(2) Detection of the air contamination by the fluctuation ratio of sensor resistance
The output voltage from the odor sensor is input into the microcomputer to detect the air contamination.
This method detects the air contamination by converting sensor output voltage into the sensor resistance value
and calculating its fluctuation ratio per unit of time. Therefore, the sensor determines that the air is contaminated
when the sensor resistance value drops abruptly.
This method detects the air contamination by converting sensor output voltage into the sensor resistance value
and calculating its fluctuation ratio per unit of time. Therefore, the sensor determines that the air is contaminated
when the sensor resistance value drops abruptly.
Clean
Contaminated
Reference value (R0)
Smoking start
Determined value K
New reference value (R0)
Additional operation
1 min.
1 min.
Time
Determined
clean
clean
Determined
contaminated
contaminated
(3) Operation of the microcomputer
When the air conditioner is power on, the microcomputer starts operating and, after 1 minute, starts detecting the air
contamination.
contamination.
(4) Switching sensitivity of the odor sensor
The sensitivity of the odor sensor can be adjusted when the sensor is too
responsive or unresponsive.
It is set as standard at the factory.
Sensitivity is divided into three levels: high, standard, and low.
The contamination is detected when the sensor resistance drops below
following percentages compared to the reference value in a clean state.
(This is equal to the description of the resistance of the allergen sensor.)
responsive or unresponsive.
It is set as standard at the factory.
Sensitivity is divided into three levels: high, standard, and low.
The contamination is detected when the sensor resistance drops below
following percentages compared to the reference value in a clean state.
(This is equal to the description of the resistance of the allergen sensor.)
1-18 DESCRIPTION OF THE OPTIAL ALLERGEN SENSOR
(1) Outline of the optical allergen sensor
As with the odor sensor, this sensor is used to display cluster during the operation. The pulse signal is output
from the microcomputer into the basic circuit show in the figure below, and the sensor signal is input into the
microcomputer according to the size or amount of the dust.
from the microcomputer into the basic circuit show in the figure below, and the sensor signal is input into the
microcomputer according to the size or amount of the dust.
Output
Output
R39
1
2
3
4
5
6
12V
C29
C30
Q6
R38
R40
R72
Input
Input
50Hz : 20.0 ms
60Hz : 16.6 ms
60Hz : 16.6 ms
Basic circuit
Allergen
sensor
sensor
