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3.2. Operation mode
Each pressing of the [F1] button cycles through
the following operation modes.
Select the desired operation mode.
Cool
Drying
Fan
Auto
Heat
Setback
* Operation modes that are not available for the
connected indoor unit will not appear on the
display.
* Depending on the indoor unit model, either
one or two set temperatures (single or dual set
point(s)) can be set for Auto mode.
What the blinking mode icon means
The mode icon will blink when other indoor units in the same refrigerant
system (connected to the same outdoor unit) are already operated in a
different mode. In this case, the rest of the units in the same group can
only be operated in the same mode.
Drying mode
•
The indoor fan turns to the low-speed operation, disabling the change of fan speed.
•
Dry operation cannot be carried out at room temperature of less than 18°C.
•
The dry is a microcomputer-controlled dehumidifying operation which controls
excessive air-cooling according to the room temperature of your choice. (Not usable
for heating.)
1. Until reaching room temperature of your choice
The compressor and indoor fan function is linked motion according to the change of
the room temperature and automatically repeat ON/OFF.
2. When reaching room temperature of your choice
Both the compressor and indoor fan stop.
When stop continues for 10 minutes, the compressor and indoor fan are operated
for 3 minutes to keep the humidity low.
Heat mode
“DEFROST” display
Displayed only during the defrosting operation.
“STAND BY” display
Displayed from the start of heating operation until the moment warm air blows out.
Caution:
• Never expose your body directly to cool air for a long time. Excessive
exposure to cool air is bad for your health, and should therefore be avoided.
• When the air-conditioner is used together with burners, thoroughly ventilate
the area. Insufficient ventilation can result in accidents due to oxygen
deficiency.
•
Never place a burner at a place where it is exposed to the airflow from the air-
conditioner. Doing so can result in imperfect combustion of the burner.
• The microcomputer functions in the following cases:
-
Air does not blow out when heating starts.
• To prevent any cool air from escaping, the indoor fan is gradually switched
in sequence from faint airflow/weak airflow/set airflow according to the
temperature rise of the blown out air. Wait a moment until the airflow comes out
naturally.
-
The fan is not moving at the set speed.
•
In some models, the system switches over to faint airflow when the temperature
of the room reaches the set temperature. In other cases, it stops to prevent any
cool air from escaping during the defrosting operation.
- Air flows out even if operation is stopped.
• Approximately 1 minute after the stop of operation, the indoor fan sometimes
rotates to eliminate extra heat generated by the electric heater, etc. The fan
speed comes to low or high.
Auto (dual set point) and Setback modes
When the operation mode is set to the Auto (dual set point) mode or the Setback mode,
two set temperatures (one each for cooling and heating) can be set. Depending on the
room temperature, indoor unit will automatically operate in either the cooling or heating
mode and keep the room temperature within the preset range.
Differences between the two modes
•
Auto (dual set point) mode
The set temperatures that are specified for the Cool/Drying mode and the Heat
mode will be used to automatically control the room temperature to stay within the
set temperatures. This mode is especially effective during the in-between seasons,
when the temperature difference between the highest and the lowest is large and
both heating and cooling modes are used within the same day.
•
Setback mode
Room temperature is controlled to stay within the set temperature range that
is specified for the Setback mode. By leaving sufficient temperature differential
between the set temperature for cooling (upper limit) and heating (lower limit),
it is possible to keep the room temperature within the specified range without
overworking the air conditioners. This setting will be especially effective during
periods of non-occupancy.
3.3. Set temperature
<Cool, Drying, Heat, and Auto (single set point)>
Press the [F2] button to decrease the set
temperature, and press the [F3] button to
increase.
* Refer to the table below for the settable
temperature range for different operation
modes.
* Set temperature cannot be set for the Fan
mode.
* Depending on the Temperature unit setting,
temperatures will decrease or increase by
0.5ºC, 1ºC, 1ºF, or 2ºF increments.
<Auto (dual set point) or Setback mode>
The current set temperatures will appear.
Press the [F2] or [F3] button to display the
Settings screen.
Set temp.
(Cool)
Set temp.
(Heat)
Operation pattern during Auto (dual set point) mode
The room temperature
changes corresponding
to the change in the
outside temperature.
Heat
Cool
Heat
Cool
Room
temperature
Operation pattern during Setback mode
Set temp.
(Setback_Cool)
Set temp.
(Setback_Heat)
Heat
Cool
Heat
Cool
The room temperature
changes corresponding
to the change in the
outside temperature.
Room
temperature
Set temperature for cooling
Set temperature for heating
