AY-A074E
AY-A094E
AE-A074E
AE-A094E
4. Hot-Keep6. Overheating protection system
This function automatically controls the on-off operationWhen overloading occurs during the heating operation,
of the indoor fan motor in accordance with the on-offthis system controls the outdoor fan motor according to
operation of the compressor during the heating operation,the indoor pipe temperature to prevent the overloading of
thereby preventing the air conditioner from delivering athe compressor and restrain the rise in high pressure.
cold air when the compressor is off.When the indoor pipe temperature exceeds U1uC, the
When the room temperature exceeds the thermostat lineoutdoor fan motor is turned off, and when the indoor pipe
OH1�, the compressor is turned off, and the indoor fantemperature falls U2uC, the outdoor fan motor turns on.
motor is turned off after rotating at OUL� for 30 seconds.If 3 minutes elapse after turning off outdoor fan motor, the
3 minutes after turning off the compressor, the compressoroutdoor fan motor is turned on, when the indoor pipe falls
is turned on for 3 minutes. (below thermostat line H01).U1uC,
While over H01, the compressor is off.
OFFOFFON
At 10 seconds after turning on the compressor, the indoorU1U1
fan motor is turned on.
ON
The next compressor OFF time is for 3, 8 or more than 8
minutes according to the room temperature (the timeU2U2
increases with a rise of room temperature) when 3
minutes elapse after turning on the compessor.
In the case of turn offIn the case of turn off
3 min. 3 min.more than 3 min.time is within 3 minutestime is over 3 minutes
ON
CompressorFigure Y-9
OFF
Table Y-3
ON
ULUL
Indoor
fan motorFan
OFF
30sec.30sec.Speed
MODELS
(Thermo off)HML
10sec.10sec.
timeLine
Figure Y-7
U153uC53uC53uC
AY-A074E
5. Preheat air flowU249uC49uC49uC
This function is intended to prevent cold air from being
U153uC54uC54uC
discharged when the heating operation starts or whenAY-A094E
U249uC50uC50uC
defrosting.
When the indoor pipe temperature is below 29uC at the
begining of the heat operation or after defrosting, the
indoor fan motor stays.
When the indoor pipe temperature gets higher than 29uC,
the fan motor is turned on at speed OUL� after compensation
of starting.
When the indoor pipe temperature exceeds 35uC, the
specified fan speed is restored. When the indoor pipe
temperature falls below 30uC, the fan speed shifts down
to OUL�. And, when the indoor pipe temperature falls
below 24uC, the fan motor turns off. Then, over 29uC , it
turns on again at speed OUL�.
35
30
29
24
Pipe temperature(uC)
OFF
ULPresetULOFF UL
Fan speed
Figure Y-8
12 |
ACEC
