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4-11 Defrost
The defrost process is controlled by a detection algorithm designed in order to mantain optimal
utilization of the heat pump capacity especially during negative outdoor temperature conditions.
• Compressor speed fixed
• Expansion valve opening fixed
• Outdoor fan switched off
• Indoor fan controlled by cold draft prevention
• Defrost valve switched on (open)
• Reversing valve switched on (heating operation)
NOTE:
• Minimum defrost time interval is 2 minutes
• During HIGH POWER operation the defrost detection is ignored until this mode remains active
• System exits defrost protection as soon as 14°C on the outdoor coil are detected and, in any case,
if at least 12 minutes are elapsed from the start of the defrost cycle.
4-12 I FEEL function
As standard configuration the air conditioner operates detecting the room temperature through the sensor
equipped in the wireless remote controller (icon I FEEL shown on the display). This feature provides a
personalised environment since the temperature can be detected where the remote controller is located.
It is possible to de-activate this option pressing the I FEEL button on the remote controller.
In this case the I FEEL icon is no longer displayed and room temperature is detected through the sensor
included in the indoor unit.
4-13 HI POWER mode
When this mode is active the internal fan speed is set automatically and the air conditioner operates,
for 15 minutes, at the maximum power. After 15 minutes from the selection the mode is automatically
switched off.
4-14 DRAIN PUMP
This unit is equipped with a drain pump
The level detection is done through a float switch connected at the input WS (closed under normal conditio
and opened when water overflow). System operation is according to the following chart:
Open
Closed
ON
OPERATION
OFF
led
Blink
ON
CM
FMO
OFF
ON
Thermostat
OFF
Drain
ON
pump
OFF
Overflow when
Overflow when
THERMO is ON
THERMO is OFF
15
Overflow when
unit is OFF(standby)
T < 10 min
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