10
2.5.3 SILENT
(quiet)
mode
This mode can be selected from the infrared receiver (button B3)
or from the serial port and can only be used in combination with
the cooling or heating modes. When the
quite
cooling mode is
activated, the
outdoor
fan and the
Indoor
fan are forced to run at
low speed. The compressor is forced to operate at a fixed
frequency set (default 40Hz) and Tset is automatically increased
by 1° C after 1 hour and by a
another
degree after 2 hours
(starting from the activation of any function or subsequent
modification of the Tset).
All the cooling subprograms are still enabled, in this way the
outdoor
fan can be switched to higher speeds if required by the
usual algorithm
.
When the
quiet
heating mode is activated, the
outdoor
fan and the
Indoor
fan a to run at low speed. The compressor is forced to
operate at a fixed frequency set via IPM EEPROM ADDR1F6
(default 40Hz) and Tset is automatically reduced by 1°C after 1
hour and by a further degree after 2 hours (starting from the
activation of a function or subsequent modification of the Tset).
All heating subroutines are still enabled.
In cases where the low noise mode is deactivated, Tset is
changed from the remote control, the unit is placed in standby
mode or the power is cut off, the operation timer is reset and Tset
is reset to the last received value from the remote control.
In this condition all the foreseen malfunction warnings are
enabled
.
2.5.4 ECO Mode
This mode can be selected from the infrared receiver (button B8)
or from the serial port; no message appears on the display.
The
IPM board already includes HIGH VOLTAGE limits, which refer
s
to the total voltage absorbed by the power and IPM boards and
their accessories:
maximum voltage limit in cooling mode (e.g. 7
Ampere)
maximum voltage limit in heating mode (e.g. 7 Ampere)
If Economy mode is activated, a lower voltage limit is introduced:
The percentage (%) of the voltage limit is set
to
50
%
.
Example:
5 Ampere x 50% = 2
.
5 Ampere
In order not to exceed
2
.
5
Amps, the compressor frequency is
limited.
2.5.5 Energy BOOST / System ENABLE
Y2
a
WARNING
DANGER OF ELECTROCUTION
Before carrying out any maintenance or cleaning,
disconnect the appliance from the power supply.
ALL electrical connections and wiring MUST be
done by a qualified electrician and in compliance
with local regulations.
Failure to follow these instructions can cause
damage to property, personal injury
It can be used both as a window contact (on off of the appliance
based on the opening / closing of the contact) or as an ENERGY
BOOST function.
Based on the setting of the PI parameter, it is possible to select
whether and which of the functions are to be activated.
The input located on the terminal (Y2) of the main board can be
used to activate the ENERGY BOOST or SY-STEM ENABLE
functions of the air conditioner.
Configuration and use of the ENERGY BOOST or SYSTEM
ENABLE input
:
–
I
nsert the plug into the socket to power the air conditioner then
make sure it is in stand-by mode.
–
On the control panel, press the MODE button for more than 10
seconds, until an acoustic signal is emitted.
–
The display shows parameter P0
.
