– 50 –
NO. Item Specification outline Remarks
6. CONTROL OUTLINE
6-1. Indoor Unit
Control Specifications
1 Upon power
supply reset
1. Identification of outdoor unit
When the power supply is reset, the outdoor unit is identified, and control is
redirected according to the identification result.
2. Indoor fan speed and air flow direction control availability settings
Settings such as indoor fan speed and air flow direction control availability are
replaced on the basis of EEPROM data.
3. If power supply reset is performed in the wake of a fault, the check code is cleared.
If the abnormality persists after the Start/Stop button on the remote controller is
pushed to resume operation, the check code is redisplayed on the remote
controller.
2 Operation
selection
1. The operation mode changes in response to an operation selection command
issued via the remote controller.
TS: Temperature
setting
TA: Room
temperature
Remote controller command
STOP
FAN
COOL
DRY
HEAT
AUTO
Control outline
Air conditioner shutdown
Fan operation
Cooling operation (Note 2)
Drying operation
Heating operation
Automatic cooling/heating operation (Note 1)
3 Room temp.
control
1. Adjustment range - remote controller temperature setting °F(°C)
Shift in heating
suction temperature
(not applicable to
remote controller
thermostat operation)
COOL/DRY HEAT
Wired type
64°F [18°C] to 84°F [29°C]
Wireless type
63°F [17°C] to 86°F [30°C]
SET DATA
4
6
Temperature setting adjustment
2
0
+0°F[+0°C]
SET DATA
2
2. In heating operation, the temperature setting may be fine-tuned via the DN code “06”.
Factory default
(Note 1) Selection of cooling or heating operation is automatically carried out by the
difference between the set temperature and the room temperature.
Automatic control of cooling/heating operation
a. For selection judgment of cooling / heating, see the figure below:
TA
°F (°C)
Cooling
Heating
(Cool OFF)
(Cool ON)
+ 2.7°F (1.5°C)
Tsc
or Tsh
– 2.7°F (1.5°C)
If the value exceeds +2.7°F against Tsh when
10 minutes passed after thermostat-OFF,
heating operation (thermostat-OFF) is
exchanged to cooling operation.
Description in the parentheses is an
example of cooling ON/OFF.
If the value drops –2.7°F against Tsc when
10 minutes passed after thermostat-OFF,
cooling operation (thermostat-OFF) is
exchanged to heating operation.
b. For automatic capacity control after judgment of cooling/heating, see item 4.
c. Correction of room temperature control in heating operation, see item 3
Tdc: Cooling operation
Temperature setting
Tsh: Heating operation
Temperature setting
+ room temperature
control temperature
compensation
(Note 2) When switching from the heating operation to the cooling operation, due to
the reduction of the refrigerant noise at the opening-closing of the two-way
valve in the FS unit, the cooling operation start time differs by the capacity
of the indoor unit connected to one branch of the FS unit.
64°F [18°C] to 84°F [29°C]
63°F [17°C] to 86°F [30°C]
+3.6°F[+2°C]
+
10.8°F[+6°C]
+7.2°F[+4°C]
To Next Page
Loading...
