Read Sharp AE-M18 (serv.man2) Service Manual online
17
AY-M09AE
AE-M18AE
AE-M18AE
16. Power on start
If the connecting wire "POWER ON" (JP8) 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-1.
Electronics Control Circuit Diagram.)
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-1.
Electronics Control Circuit Diagram.)
17. AUTO RESTART
Power failure occurs during operation, the unit will
retart in the same operation mode as before after
power recovery.
retart in the same operation mode as before after
power recovery.
18.Test mode
18-1 Indoor unit
Make terminals 1 and 2 of connector CN4 short-
circuited and supply the power.
Hereby the timer's period becomes shortened.
In this test mode, the control times are shortend
as follows.
circuited and supply the power.
Hereby the timer's period becomes shortened.
In this test mode, the control times are shortend
as follows.
The operation LED flicker's period not
in Test run shortened
The protector timer
The defrost timernot
Other controls; 1/60 (ex.; 3 min. to 3 sec.)
The defrost timernot
Other controls; 1/60 (ex.; 3 min. to 3 sec.)
18-2 Outdoor unit
Make terminals and of connector short circuited
and supply the power. Hereby the timer's period
becomes shorted. In this test mode, the control
times are shorted 1/10
and supply the power. Hereby the timer's period
becomes shorted. In this test mode, the control
times are shorted 1/10
19. Trouble suspension
When indoor fan motor is out of order or compressor
lock occurs, the compressor, indoor fan motor,
outdoor fan motor, and louver are all stopped and
the operation LED(red) turned off and the timer
LED(yellow) turns on or off as follows.
lock occurs, the compressor, indoor fan motor,
outdoor fan motor, and louver are all stopped and
the operation LED(red) turned off and the timer
LED(yellow) turns on or off as follows.
15. Outputs in each operation mode
Table Y-5
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.
operation mode and preset temperature are set
automatically according to the room temperature on
starting operation.
Table Y-4
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 in cool operation, and
H1 to H4 in heat operation.
heat operation, the fan speed is automatically changed
by the thermostat lines C1 to C3 in cool operation, and
H1 to H4 in heat operation.
a.COOL operation
Room temperature
Preset temperature
R o o m
t e m p e r a t u r e
t e m p e r a t u r e
t r a n s i t i o n
C3
C2
C1
States 1 & 5 :"M"
States 2 & 4 : "L"
States 2 & 4 : "L"
States 3 : "UL"
3
4
5
1
2
Figure Y-13
b. HEAT operation
Figure Y-14
Room temperature (˚C)
P r e s e t t e m p e r a t u r e (˚C)
R o o m
t e m p e r a t u r e
t r a n s i t i o n
t e m p e r a t u r e
t r a n s i t i o n
S t a t e s 1 & 7 : " H "
S t a t e s 2 & 6 : " M "
S t a t e s 3 & 5 : " L "
S t a t e s 4 : " U L " / O F F
S t a t e s 2 & 6 : " M "
S t a t e s 3 & 5 : " L "
S t a t e s 4 : " U L " / O F F
H1
H2
1
H4
H3
6
5
4
7
2
3
ON
OFF
ON
OFF
ON
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
ON
ON
ON
OFF
ON/UL/OFF
ON
ON
UL/OFF
ON
OFF
OFF
OFF
ON
L/UL
UL/D
OFF
D/OFF
OFF
ON
OFF
OFF
OFF
OFF
Mode
Compressor
Outdoor
Fan Motor
Cooling
Circulating
Normal
Preheat
Air Flow
Control
Air Flow
Control
ON Defrost
FAN ONLY
Indoor
Fan Motor
Valve
Coil
C
O
O
O
O
L
H
E
A
E
A
T
D
R
Y
R
Y
Cooling
Circulating
Dehumidiflying
Timer LED ON
(yellow)
(yellow)
OFF
1 sec.
1 sec.
In this case, when "ON/OFF" button in the remote
control or "AUX" button in the unit is pushed, the unit
is out of "Trouble suspension".
control or "AUX" button in the unit is pushed, the unit
is out of "Trouble suspension".
Room temperature
at operation start
at operation start
Operation
Mode
Mode
Preset
Temperature
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
at operation start
23˚C
COOL
DRY
HEAT
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