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9-1-3. Control Specifications
No.
1
Item
When power
supply is reset
Outline of specifications
1) Distinction of outdoor units
When the power supply is reset, the outdoors are
distinguished, and control is exchanged according to
the distinguished result.
2) Setting of the indoor fan speed
Based on EEPROM data, rspeed of the indoor fan is
selected.
1) Based on the operation mode selecting command
from the remote controller, the operation mode is
selected.
Remarks
Air speed
Remote controller
command
STOP
FAN
COOL
DRY
HEAT
AUTO
Outline of control
Air conditioner stops.
Fan operation
Cooling operation
Dry operation
Heating operation
1) Judge the selection of COOL/HEAT mode as shown in the
figure below.
When the heating operation (Thermo OFF) is exchanged
to cooling operation if Tsh exceeds +3 or more.
(COOL OFF) and (COOL ON) in the figure indicate an
example.
When the cooling operation (Thermo OFF) is exchanged
to heating operation if Tsc exceeds -3 or less.
2) For the automatic capacity control after judgment of
COOL/HEAT, refer to item 4.
3) For the temperature correction of room temperature control
in automatic heating operation, refer to item 3.
Ta : Room temperature
Ts : Setup temperature
Tsc : Setup temperature
in cooling operation
Tsh : Setup temperature
in heating operation
1) Adjustment range Remote controller setup tempera-
ture (°C)
2
3
Operation mode
selection
Room tempera-
ture control
Standard type
Wireless type
COOL/
DRY
18 to 29
17 to 30
Heating
operation
18 to 29
17 to 30
Auto
operation
18 to 29
19 to 29
Remote controller
setup temp
Setup temp (°C)
5 4 3 2 1
19 20 21 22 23
Standard
24
1 2 3 4 5
25 26 27 28 29
2) Differential 1K (=deg)
3) In heating operation, the setup temperature can be
corrected by using Dip switch (SW03) on the indoor
P.C. board.
Setup at shipment
Max. setup temperature
Ts (Max) = 35°C
SW03
1
2
Setup temp correction
ON ON OFF OFF
ON OFF ON OFF
+0°C+2°C+4°C+6°C
SW03
12
ON OFF
Ta
( C)
+3
Tsc
or Tsh
–3
Heating
COOL
(COOL ON)
(COOL OFF)