Read Sharp AE-M18 (serv.man2) Service Manual online
14
AY-M09AE
AE-M18AE
AE-M18AE
2-2
DRY operation
On the switch on, the compressor always starts
to operate for 2 minutes with fan speed “D”
(slower than “UL”).
The microcomputer reads the room temperature
2 minutes after this first compressor operation.
This room temperature is set as the preset
temperature automatically.
The preset temperature ranges from 18˚C to
32˚C. When the room temperature is below
18˚C, the preset temperature is set to 18˚C,
and when the room temperature is over 32˚C,
the preset temperature is set to 32˚C.
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 are
controlled in each zone as shown in Table Y-2.
On the switch on, the compressor always starts
to operate for 2 minutes with fan speed “D”
(slower than “UL”).
The microcomputer reads the room temperature
2 minutes after this first compressor operation.
This room temperature is set as the preset
temperature automatically.
The preset temperature ranges from 18˚C to
32˚C. When the room temperature is below
18˚C, the preset temperature is set to 18˚C,
and when the room temperature is over 32˚C,
the preset temperature is set to 32˚C.
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 are
controlled in each zone as shown in Table Y-2.
Table Y-1
Room temperature (˚C)
Preset temperature (˚C)
Room
temperature
transition
temperature
transition
D3
D2
D1
States 1 & 5 : Cooling zone
States 2 & 4 : Dehumidifying zone
States 3 : Circulating zone
States 2 & 4 : Dehumidifying zone
States 3 : Circulating zone
3
4
5
1
2
Figure Y-5
Table Y-2
Figure Y-6
Room temperature (˚C)
Preset temperature (˚C)
Room
temperature
transition
temperature
transition
States 1 & 3 : Compressor ON
States 2 : Compressor OFF
States 2 : Compressor OFF
H1
H2
3
1
2
2-3
Heat operation
The compressor turns on or off, at State 2 ,
turns on continuously at State 1 & 3 .
The compressor turns on or off, at State 2 ,
turns on continuously at State 1 & 3 .
Compressor
Fan speed
Cooling zone
ON
"UL"
Dehumidifying
zone
zone
ON
"D"
Circulating
zone
zone
OFF
"D" or "OFF"
Present mode
Indoor unit
A1
A2
A1
A2
OFF
OFF
OFF
OFF HEAT
HEAT
COOL
COOL
DRY
DRY
FAN
ONLY
ONLY
FAN
ONLY
HEAT
or
OFF
HEAT
HEAT
HEAT HEAT
HEAT
COOL
DRY
FAN
ONLY
ONLY
COOL
or
OFF
COOL
COOL
COOL HEAT
COOL
COOL
DRY
FAN
ONLY
ONLY
DRY
or
OFF
DRY
DRY
DRY HEAT
DRY
COOL
DRY
FAN
ONLY
ONLY
FAN
ONLY
or
OFF
FAN
ONLY
FAN
ONLY
FAN
ONLY
HEAT
HEAT
COOL
COOL
DRY
DRY
FAN
ONLY
ONLY
FAN
ONLY
Indoor unit
Outdoor
unit
Outdoor
unit
New mode
The busy : LED of the indoor unit flickers.
2-1 COOL operation
The compressor turns on or off, at the thermostat lines
C3 and C4. The outdoor fan motor is also controlled
with the compressor.
C3 and C4. The outdoor fan motor is also controlled
with the compressor.
Figure Y-4
Room temperature (˚C)
Preset temperature (˚C)
Room
temperature
transition
temperature
transition
C3
C4
States 1 & 3 : Compressor ON
State 2 : Compressor OFF
State 2 : Compressor OFF
1
2
3
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