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7-3. Control Specifications (4-Way Air Discharge Cassette Type / Under Ceiling Type)
Cooling thermo. OFF (Fan)
• Setup air volume
Cooling
operation
Heating
operation
Ta
F˚ [˚C]
–1.8 [–1.0]
Ts +
α
1.8 [1.0]
No.
1
2
3
Item
When power
supply is reset
Operation
mode selection
Room temp.
control
Outline of specifications
1) Distinction of outdoor unit
When the power supply is reset, the outdoors are distin-
guished and the control is selected according to the
distinguished result.
2) Setting of indoor fan speed and existence of air direction
adjustment
Based on EEPROM data, select setting of the indoor fan
speed and the existence of air direction adjustment.
1) Based on the operation mode selecting command from the
remote controller, the operation mode is selected.
Remote controller
command
STOP
FAN
COOL
DRY
HEAT
AUTO
Control outline
Air conditioner stops.
Fan operation
Cooling operation
Dry operation
Heating operation
• COOL/HEAT operation mode is
automatically selected by Ta, Ts
and To for operation.
• The operation is performed as
shown in the following figure
according to Ta value at the first
time only. (In the range of Ts +
α
–1 < Ta < Ts +
α
+ 1, Cooling
thermo. OFF (Fan)/Setup air
volume operation continues.)
•
α
is corrected according to the outside temperature.
1) Adjustment range: Remote controller setup temperature (°F [°C] )
Remarks
Fan speed (rpm)/
Air direction adjustment
Ta: Room temp.
Ts: Setup temp.
To: Outside temp.
K = deg
Outside temp.
No To
To
≥
75.2°F (24°C)
75.2°F (24°C) > To
≥
64.4°F (18°C)
To < 64.4°F (18°C)
To error
Correction value (
α
α
α
α
α
)
0K
–1K
0K
+1K
0K
Wired type
Wireless type
COOL/DRY
64°F [18°C] to 84°F [29°C]
64°F [18°C] to 86°F [30°C]
HEAT
64°F [18°C] to 84°F [29°C]
61°F [16°C] to 86°F [30°C]
AUTO
64°F [18°C] to 84°F [29°C]
63°F [17°C] to 80°F [27°C]