AH/AU-A079E
AH/AU-A099E
8. Automatic fan speed control9. Outputs in each operation mode
If the automatic fan speed is selected in cool operation,
the fan speed is automatically changed according to theTable H-4
thermostat lines C1, C2 to C3.
Outdoor
Indoor
Compressor
Fan MotorFan Motor
CoolingONONON
States 1 & 5 :"M "COOL
States 2 & 4 : "L"Circulating OFFOFFON
States 3 : "U L"C1CoolingONONL/UL
C2DRYDehumidifyingONONUL/D
5
C3Circulating OFFOFFD/OFF
1
4FAN ONLYOFFOFFON
210.Power on start
Room temperature
R oom If the connecting wire "POWER ON" (JP8) is shorted on
m peraturethe PWB ass'y, when the power is supplied by turningte
3transition
on a circuit breaker, the air conditioner automatically
starts of operation in "AUTO".
Preset temperature
11.AUTO RESTART
If IC6 is soldered on the PWB ass'y, and power failure
Figure H-5
occurs during operation, the unit will retart in the same
operation mode as before after power recovery.
12.Diagnosis procedure
When indoor fan motor is out of order or compressor lock occurs, the compressor, inddor fan motor, outdoor fan
motor, and louver are all stopped and the operation LED(red) turns on or off syncronously with the timimg of the
timer LED.
When the thermistor for room temperature or pipe temperature is open or short state, the operation LED turns on
or off syncronously with the timing of the timer LED by pushing continously for more than three seconds both
"TEST" button and "AUX." button.
1sec. 1sec.
ON
Timer
4sec.
LED
OFF
ON
Indoor
Operation
fan motorLED
OFF
ON
Comp.-lockOperation
LED
OFF
ON
Thermistor
Operation
short stateLED
OFF
ON
Thermistor
Operation
open stateLED
OFF
Timing chart of Timer LED and Operation LED of DIAGNOSIS PROCEDURE.
When "OI" button the remote controller or "AUX." button in the unit is pushed, the unit is free from DIAGNOSIS
PROCEDURE.
11 |
ACEC
