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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
Operation
at operation start
Mode
Above 28˚C
26˚C
28˚C
24˚C
26˚C
21˚C
24˚C
Below 21˚C
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.
a.COOL operation
Figure Y-13
b. HEAT operation
States 1 & 7 : "H"
States 2 & 6 : "M"
States 3 & 5 : "L"
States 4 : "UL"/OFF
4
3
5
2
1
P r e s e t t e m p e r a t u r e (˚C)
Figure Y-14
Preset
Temperature
26˚C
COOL
25˚C
24˚C
DRY
Room temperature
at operation start
HEAT
23˚C
H1
H2
H3
H4
6
Room
7
temperature
transition
15. Outputs in each operation mode
Mode
Compressor
C
Cooling
O
O
Circulating
L
Normal
H
E
Preheat
A
Air Flow
T
Control
ON Defrost
Cooling
D
R
Dehumidiflying
Y
Circulating
FAN ONLY
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.)
17. AUTO RESTART
Power failure occurs during operation, the unit will
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.
The operation LED flicker's period
in Test run
The protector timer
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
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.
Timer LED ON
(yellow)
OFF
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".
17
Table Y-5
Outdoor
Indoor
Valve
Fan Motor
Fan Motor
Coil
ON
ON
ON
OFF
OFF
OFF
ON
OFF
ON
ON
ON
ON
OFF
OFF
ON/UL/OFF
ON
ON
ON
UL/OFF ON
ON
OFF
OFF
OFF
L/UL
OFF
UL/D
OFF
ON
ON
OFF
OFF
D/OFF
OFF
OFF
OFF
ON
OFF
not
shortened
1 sec.
1 sec.
AY-M09AE
AE-M18AE
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