Technical data

10 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
• Reversing valve switched off (cooling operation)
• Minimum defrost time interval is 6 minutes
• During HIGH POWER operation the defrost detection is ignored until this mode remains active
• System exits defrost protection at least after 6 minutes and only if the temperature of 14°C is reached
on outdoor coil. In any case it exits if at least 12 minutes are elapsed from the start of the defrost cycle.
• After defrost, the compressor starts run after 3 minutes although the fan and the resistance
switch on after 45 seconds.
11 I FEEL function
A
s standard configuration the air conditioner operates detecting the room temperature through the senso
r
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.
12
HI
POWER
mo
d
e
When this mode is active the air conditioner operates without any power limitation.
The compressor can use the full range of speed. During this mode, the operation led blinks
with a long intermittence.
To reset to normal mode (ECO mode), press three time the HI POWER / NIGHT MODE button
on remote controller. After this switch, check that the operation lamp is constantly on.
13
H
ea
t
er res
i
s
t
ance
The unit is equipped with a heater resistance which provide auxiliary power if required
.
There are 3 modes for heater operation:
13.1 Automode
The heater resistance switches on only when are satisfied the following condition
:
1) unit in automode operation
2) the required thermal load is higher than the maximum power that can be supplied
by the heat pump circui
t
3) outdoor air temperature lower than 2°C ( OAT<2°C )
13.2 Auxiliary power in heating
The heater resistance will switch on upon request of the user, in heating mode operation,
by pressing the FILTER button on remote controller (icon FILTER shown on the display
)
13.3 Fan heate
r
In fan mode operation, the heater resistance will switch on, upon request of the user,
by pressing the FILTER button on remote controller (icon FILTER shown on the display
)
In any case, the resistance will be turned off if reached the switching point of thermostats.
Pagina 14