AH-A189E
AH-A249E
2-2DRY operation4. Current control
On the switch on, the compressor always startsThis system, in order to prevent overcurrent during
to operate for 2 minutes with fan speed OD�cool or dry operation, controls the compressor by
(slower than OUL�).detecting total current.
The microcomputer reads the room temperatureWhen the current exceeds P1, the compressor is
2 minutes after this first compressor operation.automatically stopped.
This room temperature is set as the presetAH-AH-
temperature automatically.A189EA249E
The preset temperature ranges from 18uC to
32uC. When the room temperature is belowP1 18.0A22.2A
18uC, the preset temperature is set to 18uC,
and when the room temperature is over 32uC,
the preset temperature is set to 32uC.
Dry operation is divided into three zones
(Cooling zone, Dehumidifying zone and
Circulating zone) by thermostat lines (D1 to
D3), and the compressor and the fan motor
Input current
are controlled in each zone as shown in Table
H-1.
States 1 & 5 : Cooling zone
States 2 & 4 : Dehumidifying zoneTime
States 3 : Circulating zone
Room Compressor
temperature
transition5OFF
D1
1Figure H-5
4D2
5. Freeze preventive
D3
2When the indoor pipe temperature falls below -1uC
Room temperatureduring cool operation or dry operation, the compressor
is turned off.
3
6. Test run
Preset temperatureIf the OTEST RUN� button in the unit is pushed during
suspension of operation, cool test operation starts. At
Figure H-4this time, the fan speed is set to OAUTO�.
If this button is pushed during operation, the test
Table H-1
operation starts in current operation mode. The
operation LED (red) flickers during test run.
CompressorFan speed
In cool mode continuous compressor on operation is
Cooling zoneON"UL"
performed. In dry mode the operation is in
DehumidifyingON"D"dehumidifying zone. In fan only mode the indoor fan
zonemotor runs continuously.
CirculatingOFF"D" or OFF
zone7. Timer
7-1 24-HOUR PROGRAMMABLE ON/OFF TIMER
ON-TIMER or OFF-TIMER can be independently
2-3Fan only operation
programmed.
The indoor fan motor always turns on.When the unit operates during one hour after the
OFF-time is set, thermostat setting is
3. Fan speed
automatically shifted (+1uC in cool operation and
Fan speeds are given by the indoor fan motor, OM�,dry operation, but, 16uC set temperature at the
OL� and OUL�, which are available in the following
lowest).
operation mode.
When the ON-timer is set in cool operation,
operation starts before 0 to 30 minutes(depends
Table H-2
on the room temperature) so that preset temper-
FAN SwitchCOOLFAN ONLYature is obtaind at set time.
HIGHMM
LOWLL
SOFTULUL
13 |
ACEC
SHARP
