Sharp AE-XM24CR (serv.man17) Service Manual ▷ View online
29
AY-XM7/9/12CR
AY-XPM7/9/12CR
AE-XM18/24CR
AY-XPM7/9/12CR
AE-XM18/24CR
Figure L-13. Printed Wiring Board Diagram for AY-XPM7/9/12CR
DISPLAY BOARD UNIT 1
DISPLAY BOARD UNIT 2
DISPLAY BOARD UNIT 3
FILTER CIRCUIT
CLUSTER
GENERATOR
FROM CONTROL
BOARD UNIT
30
AY-XM7/9/12CR
AY-XPM7/9/12CR
AE-XM18/24CR
AY-XPM7/9/12CR
AE-XM18/24CR
Figure L-14. Relay P.W.B. for AE-XM18CR
Figure L-15. Relay P.W.B. for AE-XM24CR
from Fan Motor
from Power Supply
PWB (BR), (BL)
PWB (BR), (BL)
from Power Supply
PWB BCN9A
PWB BCN9A
from Control PWB BCN9B
from
4 Way Valve
4 Way Valve
4 WAY VALVE
FAN MOTOR
FROM CONTROL / POWER SUPPLY PWB
POWER SUPPLY PWB
FAN MOTOR
CAPACITOR
QPWBFB463JBZZ(R)
DPWWBFA
JKZZ(R)
CN3
7
1
1
3
1
1
6
3
CN4
BL
BK
CN1
CN9
CNR2
CNR1
RY1
D11
D12
D10
EC
EC
B
B
EC
B
Q5
Q4
Q6
RY2
JP1
JP2
JP12
JP11
RY3
CNR3
from Fan Motor
from Power Supply
PWB (BR), (BL)
PWB (BR), (BL)
from Power Supply
PWB BCN9A
PWB BCN9A
from Control PWB BCN9B
from
4 Way Valve
4 Way Valve
4 WAY VALVE
FAN MOTOR
FROM CONTROL / POWER SUPPLY PWB
POWER SUPPLY PWB
FAN MOTOR
CAPACITOR
QPWBFB458JBZZ(R)
DPWWBFA
JKZZ(R)
CN3
7
1
1
3
1
1
6
3
CN4
BL
BK
CN1
CN9
CNR2
CNR1
RY1
D11
D12
D10
EC
EC
B
B
EC
B
Q5
Q4
Q6
RY2
JP1
JP2
JP12
JP11
RY3
CNR3
31
AY-XM7/9/12CR
AY-XPM7/9/12CR
AE-XM18/24CR
AY-XPM7/9/12CR
AE-XM18/24CR
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˚Cor 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˚Cor 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 difference
between the room and preset 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.
"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 difference
between the room and preset 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
the temperature goes below 21˚C during
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
the temperature goes below 21˚C during
operation.
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.
1-3 Hot keep
If the room temperature is setting temp. during
heating, the compressor is turned on and off to
prevent overheating, when the operating unit is single.
heating, the compressor is turned on and off to
prevent overheating, when the operating unit is single.
When two units are operating, the expansion
valve will OPEN and CLOSE to replace the
compressor ON/OFF function.
valve will OPEN and CLOSE to replace the
compressor ON/OFF function.
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
Heating
(24˚C)
Heating
(23˚C)
Heating
(22˚C)
Cooling
(24˚C)
(Room temperature
- 2
°C)
Cooling
(25˚C)
Cooling
(26˚C)
Dry
Room
temperature
(˚C)
temperature
(˚C)
26
0
10
18
28
34
External air
temperature (
temperature (
°C)
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)
3
°C
Room
temperature
temperature
Timer set time
1
hour
Timer operation starts
Stops
1
°C
Stops
Timer set time
1
hour
Timer operation starts
Room
temperature
temperature
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.
1-6 OFF-timer
The OFF-timer is set by pressing the OFF-timer
button. Operation is as follows:
button. Operation is as follows:
*During Heating
*During Cooling / Dry
*During Cooling / Dry
32
AY-XM7/9/12CR
AY-XPM7/9/12CR
AE-XM18/24CR
AY-XPM7/9/12CR
AE-XM18/24CR
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 prossed 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 prossed 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.
• When the mode of the indoor unit(s) later operated
is/ are different from those which is/are in
operation, 4 seconds later, a long BEEP will be
emitted and the temperature indicator on the
indicator panel will indicateÅh Åg and the
OPERATION lamp and TIMER lamp will blink
alternately.
This shows that the later operated unit(s) is/are not
working. In such case, change the remote
controlÅfs mode and send the same mode signal
which the other indoor unit(s) is/are operating in.
The BEEP will be emitted twice from the indoor
unit(s) later operated, and the unit(s) will operate.
operation, 4 seconds later, a long BEEP will be
emitted and the temperature indicator on the
indicator panel will indicateÅh Åg and the
OPERATION lamp and TIMER lamp will blink
alternately.
This shows that the later operated unit(s) is/are not
working. In such case, change the remote
controlÅfs mode and send the same mode signal
which the other indoor unit(s) is/are operating in.
The BEEP will be emitted twice from the indoor
unit(s) later operated, and the unit(s) will operate.
How to rest the Blinking lamp:
Change the remote control's mode and send same
mode signal whitch the other indoor unit is operating in.
The BEEP will be emitted twice from the indoor unit later
operated, and the unit will operate.2.
Change the remote control's mode and send same
mode signal whitch the other indoor unit is operating in.
The BEEP will be emitted twice from the indoor unit later
operated, and the unit will operate.2.
2. DESCRIPTION OF ODOR SENSOR
(Only for models AY-XPM7CR/XPM9CR/XPM12CR)
(1) Outline of the odor sensor
(1) Outline of the odor sensor
The odor sensor is used to display the clean sign
during operation.
This odor sensor sensitively reacts to the various
air contaminations such as a volatile organic
solvent, fragrant materials, cigarette smoke, and
cigarette 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.
during operation.
This odor sensor sensitively reacts to the various
air contaminations such as a volatile organic
solvent, fragrant materials, cigarette smoke, and
cigarette 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.
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 power
plug is inserted. cooling 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 power
plug is inserted. cooling or heating will be
automatically determined by the room temperature
sensor on the main unit, and operation will begin.
1-11 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.
same setting which were active before the power
failure.
1-12 Occupied mode
When the setting mode of one indoor unit differs
from the other, the indoor unit operated later may not
work.
from the other, the indoor unit operated later may not
work.
• When one indoor unit is operating in HEAT mode,
the other unit can not operatre in COOL or DRY
mode.
mode.
• When one indoor unit is operating in COOL or DRY
mode, the other unit can not operate in HEAT
mode.
mode.
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
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.
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.
COOL and DRY modes
HEAT 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
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