– 73 –
9-5. Hi POWER Mode
When [Hi POWER] button is pushed while the indoor unit is in Auto, Cooling or Heating operation, Hi POWER
mark is indicated on the display of the remote controller and the unit operates according to the present opera-
tion mode as described below.
1. Automatic operation
The preset temperature changes according to the operation mode selected.
In the Cooling operation, the preset temperature drops by 1°C.
In the Heating operation, the preset temperature increases by 2°C.
2. Cooling operation (Manual)
The preset temperature drops 1°C.
(The value of the preset temperature on the remote controller does not change.)
3. Heating operation (Manual)
The preset temperature increases 2°C.
(The value of the preset temperature on the remote controller does not change.)
4. The Hi POWER mode can not be set in Dry operation
5. Release of Hi POWER mode
Push [Hi POWER] button on the remote controller again.
9-6. Intermittent Operation Control for Indoor Fans of the Indoor Unit at Thermo-off
Side in Heating Operation
While heating operation is executed in two rooms, if room temperature reached the setup temperature in one
room and thermo-off occurred, the following operations start. (Refer to the figure below.)
1. The indoor unit of the room (A room) in which thermo-off did not occur starts a continuous operation with
the setup number of revolution.
2. The indoor unit of the room (B room) in which thermo-off occurred starts intermittent operation of the indoor fan.
The indoor fan operates with number of revolution of UL or SUL. Fan-ON time is 2 minutes and Fan-OFF
time is 2 to 4 minutes.
However if temperature of the indoor heat exchanger becomes over 55°C or more in B room, the indoor fan
stops the intermittent operation and starts continuous operation.
While heating operation is executed in 2 rooms, if room temperature reached the setup temperature in both
rooms and thermo-off occurred, both indoor units start intermittent operation of the indoor fan.
T on=2 min.
A room
Thermo-ON continues
0 rpm
0 rpm
B room thermo-ON
↓
Thermo-OFF
↓
Thermo-ON
Indoor fan: Operates with setup number of revolution
B room thermo-OFF
B room thermo-ON
Operated with setup number
of revolution
∗
1 Operated with UL or SUL
Fan stop
T off
T off
T off
T on
T on
T on
UL
(
∗
1)
UL
(
∗
1)
UL
(
∗
1)
Fan stop
Fan stop
∗
In case which Tc sensor temperature exceeds 55˚C
in B room, the fan stops intermittent operation and
starts continuous operation with UL or SUL (
∗
1).
2 min.
3 min.
4 min.
To < 5˚C
5 < To < 10
10 < To
T off time
