AY-M09AE
AE-M18AE
7. Current controlSwitch ONDefrostDefrost
This system, in order to prevent overcurrent during
heating operation, controls the outdoor fan motor and
changes the indoor fan motor speed by detecting total
HeatingHeatingHeating
current.
Min.
Max.
Min.
Max.
When the current exceeds P1, the compressor is
40min.11min.30min.11min.
automatically stopped. (during heat or cool or dry
Figure Y-11
operation)
When the current exceeds P2, the outdoor fan motor isDefrost start50sec.10sec.50sec. 10sec.
automatically turned off, and when the current falls
ONON
below P4, the outdoor fan motor is turned on.Compressor
When the current exceeds P3 and the indoor fan speedOFFOFF
MAX. 9min.
shifts down because of cold air (5. Preheat air flow), theONON
Reverse
changes in the indoor fan speed shifts up as follows,Valve
OFFOFF
from "D" to "UL", or from "UL" to "L". And when the
ONON
current falls bellow P5, the indoor fan speed shift up isOutdoor
canceled.Fan MotorOFFOFF
ON60sec.ON
IndoorUL
Current transition
Fan Motor
OFFOFF
30sec.
P1 6.3A
Preheat Air
Flow Control
P2 5.7A
Figure Y-12
P3 5.0A
P4 4.3A
10. Delayed operation of the reverse valve
P5 4.0AWhen the heat operation is shut down or the operating
Input currentmode is switched from heat to cool or dry, or vice versa,
the reverse valve is switched after 3 minutes.
Time
11. Test run
Outdoor
Indoor
Compressor
If the OTEST RUN� button in the unit is pushed during
Fan motor
Fan motor
OFF
suspension of operation, cool test operation starts. At
OFFShift UP
this time, the fan speed is set to OAUTO�.
Figure Y-10If this button is pushed during operation, the test
operation starts in current operation mode. The
8. Freeze preventiveoperation LED (red) flickers during test run.
When the indoor pipe temperature falls below -1uCIn cool and heat mode continuous compressor on
during cool operation or dry operation, the compressoroperation is performed. In dry mode the operation is in
is turned off.dehumidifying zone. In fan only mode the indoor fan
motor runs continusly.
9. Defrost
The defrost timer (integrating the operation time of12.Timer
compressor) counts time with microcomputer during12-1 24-HOUR PROGRAMMABLE ON/OFF TIMER
heat operation.ON-TIMER or OFF-TIMER can be
40 minutes later after starting to operation, or 30independently programmed. When the unit
minutes later after defrost, when the outdoor pipeoperates during one hour after the OFF-time is
temperature falls -5uC, the defrosting is started, andset, thermostat setting is automatically shifted
when the outdoor pipe temperature exceeds 11uC, the(+1uC in cool operation and dry operation, -3uC
defrosting is ended.in heat operation, but, 16uC set temperature at
In the defrost operation, first the compressor is turnedthe lowest).
off, the san speed is set yo "UL" and the outdoor fanWhen the ON-timer is set in heat operation
motor is turned off.and cool operation, operation starts before 0 to
30 seconds later the inddor fan motor is turned off, 5030 minutes(depends on the room temperature)
seconds later the reverse valve is turned off, and 60so that preset temperature is obtaind at set
seconds later the compressor is turned on.time.
In the end of defrosting the compressor is turned off,
the outdoor fan motor is turned on, 50 seconds later the12-2 ONE-HOUR TIMER
reverse valve is turned on, 60 seconds lateer theWhen ONE-HOUR timer is set, the unit turns
compressor is turned on, starting heat operation.off automatically after one hour. The one hour
At this time, the indoor fan motor is turned off or the fantimer operation has priority over other time
spedd is set to "UL" if preheat air flow function isoperation, such as the TIMER ON and TIMER
effective.OFF. If the ONE-HOUR TIMER button is
pressed again during operation, the unit will
operate additionally for another one hour.
16 |
ACEC
SHARP
