AH-M098E
AU-M188E
MICROCOMPUTER CONTROL SYSTEM
1. Temperature control characteristic2. Operation modes
1-1Operation COOL2-1Operation COOL
In the mode OCOOL�, the thermostat circuit isThe compressor turns on or off, at the
controlled by four thermostat lines (C1 ~ C4).thermostat lines C3 and C4. The outdoor fan
motor is also controlled with the compressor.
34.5C1
33.5C2
States 1 & 3 : Compressor ON
State 2 : Compressor OFF
32.5C3
31.5C4C3
3C4
20.51
19.5
Room
18.5Room temperature(Cu)temperature
Room temperature( C)transition
17.5
2
1832
Preset temperature(uC)
Preset temperature(Cu)
Figure H-1
Figure H-3
1-2Operation DRY
In the mode ODRY�, the thermostat circuit is
controlled by three thermostat lines (D1 ~ D3).2-2Operation DRY
On the switch on, the compressor always starts
to operate for 2 minutes with fan speed OD�
(slower than OUL�).
33.5D1
The microcomputer reads the room temperature
32.5D22 minutes after this first compressor operation.
This room temperature is set as the preset
31.5D3
temperature automatically.
The preset temperature ranges from 18uC to
32uC.
When the room temperature is below 18uC, the
19.5
preset temperature is set to 18uC, and when
18.5
Room temperature( C)the room temperature is over 32uC, the preset
17.5temperature is set to 32uC.
Dry operation is divided into three zones
1832(Cooling zone, Dehumidifying zone and
Preset temperature(uC)
Circulating zone) by thermostat lines (D1 to
D3), and the compressor and the fan motor
Figure H-2are controlled in each zone as shown in Table
H-1.
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ACEC
