AY-A244 - Sharp Air Conditioner Specification (repair manual). Page 15

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15
AY-A184E
AY-A244E
AE-A184E
AE-A244E
13.Automatic air conditioning
When automatic air conditioning is selected, the operation
mode and preset temperature are set automatically
according to the room temperature on starting operation.
Table Y-4
Room temperature
at operation start
Operation
Mode
Preset
Temperature
Above 28˚C
Below 21˚C
26˚C
26˚C    28˚C
24˚C    26˚C
21˚C    24˚C
25˚C
24˚C
Room temperature 
at operation start
23˚C
COOL
DRY
HEAT
14.Automatic fan speed
When the automatic fan speed is selected in cool or heat
operation, the fan speed is automatically changed by the
thermostat lines C1 to C3 operation and H1 to H4 in heat
operation.
Figure Y-13
Figure Y-14
15.Outputs in each operation mode
Table Y-5
ON
OFF
ON
OFF
ON
ON
ON
ON/OFF
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
ON
ON
ON
OFF
ON/D/OFF
ON
ON
D/OFF
ON
OFF
OFF
OFF
ON
L/UL
ON/OFF
UL/D
OFF
D/OFF
OFF
ON
OFF
OFF
OFF
OFF
Mode
Compressor
Outdoor
Fan Motor
Cooling
Circulating
Normal
Preheat
Air Flow
Control
ON Defrost
FAN ONLY
Indoor
Fan Motor
Valve
Coil
C
O
O
L
H
E
A
T
D
R
Y
Cooling
Circulating
Dehumidiflying
16.Power on start
If the connecting wire "POWER ON" is cut on the PWB
ass'y, when the power is supplied by turning on a circuit
breaker, the air conditioner automatically starts of
operation in "AUTO".
(Refer to Figure L-2. Printed Wiring Board.)
17.AUTO RESTART
If the connecting wire "MEMORY"  is cut and IC6 is
soldered on the PWB ass'y, and power failure occurs
during operation, the unit will restart in the same operation
mode as before after power recovery.
(Refer to Figure L-2. Printed Wiring Board.)
18.Test mode
18-1 TEST 1 (For control circuit operation checking)
Make terminals 1 and 2 of connector CN4 short-
circuited and supply the power.
Hereby the timer's period become shortened. as
follows.
The operation LED flicker's period
in Test run
The protector timer      not shortened
The defrost timer
Other controls; 1/60 (ex.; 3 min. to 3 sec.)
18-2 TEST 2 (For output of each operation checking)
Keep pushing both the buttons, "AUX." and "TEST
RUN", and supply the power, the system will go to
the test 2 mode. In this mode, the output of operation
is switched by pushing the "TEST RUN" button in
the unit or the "ON/OFF" button in the remote
controller.
Use the "AUX." button to back to step 1.
Normal outputs are shown in Table Y-6 and Y-7.
Room temperature
Preset temperature
Room 
temperature 
transition
C3
C2
C1
States 1 & 5 : "M"
States 2 & 4 : "L"
State 3 : "UL"
3
4
5
1
2
a. COOL operation
Room temperature
Preset temperature
Room 
temperature 
transition 
H3
H2
States 1 & 7 : "M"
1
4
States 2 & 6 : "L"
States 3 & 5 : "UL"
State 4 : "UL"/"D"/OFF
b. HEAT operation
H1
H4
2
3
5
6
7
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