Hitachi SPX-WKT2 Manual Del Usuario página 22

6. ECO OPERATION
There are two kinds of "Eco operation" with sensor or
without sensor, depending on models.
Please refer to [Names and Functions of each part] in the
unit instruction manual to verify if your unit is equipped
with a sensor and read the following instruction on "Eco
operation" accordingly.
6.1 Eco operation
"Eco" operation is an energy saving function by changing set
temperature automatically and by limiting the maximum
power consumption value.
1 To start "Eco" operation
• Press " " (eco) during operation.
" " will be indicated on the screen of normal mode.
Energy saving operation will start by changing the set
temperature higher or lower automatically and reducing
operation power consumption. This function may vary
based on the connected outdoor unit.
2 To cancel "Eco" operation
• Press " " (START/STOP). Or
• Press " " (eco) again.
NOTE
• Eco operation will not be effective when power
consumption is low.
• When "Powerful" operation is set, "Eco" operation is
canceled.
• After auto restart, "Eco" operation is canceled and previous
operation mode shall start.
• For multi model connections, energy saving operation shall
start only by changing set temperature higher or lower
automatically. However, effectiveness of "Eco" depends on
operation conditions.
6.2 Eco operation with sensor
The sensor detects the presence of people in the room.
When nobody is detected, the unit automatically starts energy
saving operation by shifting the set temperature in two steps.
1 To start "Eco" operation
• Press " " (eco) during operation.
" " will be indicated on the screen of normal mode.
The "Eco" lamp on the indoor unit lights up.
The sensor starts to detect the presence of people in the room.
2 To cancel "Eco" operation
• Press " " (START/STOP). Or
• Press " " (eco) again.
The "Eco" lamp on the indoor unit turns off.
When the presence of people is not detected for 20 minutes,
the set temperature is automatically shifted for energy saving.
If nobody is in the room for 60 minutes, the set temperature is
shifted further.
Setting
temperature
Shift
temperature
20 minutes
Cooling operation
[diagram representation for illustrative purpose only]
Setting
temperature
Shift
temperature
20 minutes
Heating operation
[diagram representation for illustrative purpose only]
The unit returns to normal operation when the sensor detects
human movement.
NOTE
• Eco operation will not be effective when power consumption
is low.
• After auto restart, "Eco" operation is canceled and previous
operation mode shall start.
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Shift
temperature
60 minutes
Shift
temperature
60 minutes