4-29
W-2WAY ECO-i SYSTEM Unit Specifications
Rated conditions
* 1. Only when all indoor units have an identical refrigerant system inside and the units are in the same group control system.
* 2. Please refer to the “Meaning of Alarm Messages” in section 5.
2. Indoor Unit
2-2. Control specifications
Unit specifications
MICROCOMPUTER CONTROL
Thermal modulation
Preset temperature range
Cooling 18
°C – 30 °C
Heating 16 °C – 30 °C
Auto 17 °C – 30 °C
Transpiration temperature control
preset value
Cooling
12 °C
Heating 40 °C
Setting
Mode change Auto (*1), Heating, Cooling
Fan speed Constant
Timer OFF, ON, OFF Repeat
Alarm display (*2)
Serial communication errors or
setting errors
E**
Unregistered settings or setting
errors
L**
Safety device errors P**
Thermistor trouble, etc. F**
Compressor cover H**
Heating Preparation Indoor fan speed control
When the indoor heat exchanger
temperature is below 28 °C, below
25 °C is rated wind velocity and
below 1 °C the wind stops. (Max.
length of 6 min.)
Defrosting Please refer to the service technical data of combined outdoor units.
Service functions
Temperature sensor indicator
function
All temperature sensors are call
ready.
Service check (archival record)
indicator function
Records up to 4 service checks in
the order of the occurrence.
System Control
2 remote-controls
2 remote-controls connected (One
as a main remote-control, and one
as secondary remote-control.)
Group-control
Up to 8 units can be operated at
once.
Other Test run
（
Forced thermo ON
）
Room temperature settings are
bypassed with forced operation.
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