3. Operation
<Dual set point>
Note:
• This function cannot be set depending on the outdoor unit to be
connected.
When the operation mode is set to the Auto (dual set point) mode, two
preset temperatures (one each for cooling and heating) can be set. De-
pending on the room temperature, indoor unit will automatically operate in
either the Cool or Heat mode and keep the room temperature within the
preset range.
For details on how to operate, refer to manual of remote controller.
Information for multi system air conditioner (Outdoor
unit: MXZ series)
■
Multi system air conditioner (Outdoor unit: MXZ series) can
connect two or more indoor units with one outdoor unit. According
to the capacity, 2 or more units can operate simultaneously.
• When you try to operate 2 or more indoor units with 1 outdoor unit
simultaneously, one for the cooling and the other for heating, the
operation mode of the indoor unit that operates earlier is selected.
The other indoor units that will start the operation later cannot operate,
indicating an operation state in blinking.
In this case, please set all the indoor units to the same operation
mode.
• There might be a case that the indoor unit, which is operating in "Auto"
mode. Cannot change over to the operating mode "Cool"/"Heat" and
becomes a state of standby.
• When indoor unit starts the operation while the defrosting of outdoor
unit is being done, it takes a few minutes (max. about 15 minutes) to
blow out the warm air.
• In the heating operation, though indoor unit that does not operate may
get warm or the sound of refrigerant flowing may be heard, they are
not malfunction. The reason is that the refrigerant continuously flows
into it.
3.3. Temperature setting
<Cool, Dry, and Heat>
Fri
Room
Cool
Set temp.
Mode
Temp.
Fan
F1
F2
F3
F4
Press the [F2] button to decrease the preset temperature, and press the
[F3] button to increase.
• Refer to the table on page 6 for the settable temperature range for dif-
ferent operation modes.
• Preset temperature range cannot be set for Fan/Ventilation operation.
• Preset temperature will be displayed either in Centigrade in 1-degree
increments, or in Fahrenheit, depending on the indoor unit model and
the display mode setting on the remote controller.
• Refer to "Function settings" in the installation manual for the 14°C cool-
ing setting.
3.4. Fan speed setting
Fri
Room
Cool
Set temp.
Mode
Temp.
Fan
F1
F2
F3
F4
Press the [F4] button to go through the fan speeds in the following order.
Auto
• The available fan speeds depend on the models of connected indoor
units.
Note:
In the following cases, the actual fan speed generated by the unit will differ
from the speed shown the remote controller display.
1. While the display is showing "Standby" or "Defrost".
2. When the temperature of the heat exchanger is low in the heat mode. (e.g.
immediately after heat operation starts)
3. In HEAT mode, when room temperature is higher than the temperature
setting.
4. In COOL mode, when room temperature is lower than the temperature
setting.
5. When the unit is in DRY mode.
Fri
Room
Cool
Set temp.
Mode
Temp.
Fan
Example display
(Centigrade in 1-degree increments)
7
en