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4 STANDBY MODE.
Can be selected by pressing B1 on the remote control or SW1 on the display unit
(in the latter case, the key only puts the appliance in standby if the unit is
switched ON and no alarms occurred). The corresponding LED L2 is switched ON to indicate that this mode
is enabled and that all the outputs are switched OFF (4way valve only can remain ON until 2 minutes from
previous compressor shut down have elapsed) (the display L1 and its backlight in this mode are switched
OFF as well). In this condition, press B1 again on the remote control (or SW1 on the display unit) to restore
all the formerly selected functions (function mode, set-point, fan speed, etc.). In standby mode all the
working timers are reset (except for the compressor delay timer, 4way valve delay timer, and dirty filter
warning hour counter). In this status, only the "room sensor alarm" fault is enabled (see the paragraph
WARNINGS and ALARMS below).
5 FAN MODE
This mode can be selected by pressing B2 or SW2 until the fan symbol (only) is shown on both the remote
control's and L1 displays. In this working mode the internal fan is always switched on and it's possible to
set the desired fan speed at any time by pressing the relative key B6 or SW3.
The internal fan speed control is based on a speed feedback signal provided by the fan motor itself (see the
motor specs in enclosure 6). The target speed is compared to the feedback signal and the motor voltage is
continuously adjusted in order to minimize the speed values difference.
Here are the details about the available fan speeds:
FAN MODE
LCD symbols
displayed:
In fan mode the Tset values on both the remote controller and the display unit are replaced by
'
' and neither B4/B5 nor SW4/SW5 are enabled.
In this working mode all appliance's malfunctions are enabled.
Compressor, ext fan, water disposal motor and 4way valve must always remain OFF.
6 COOLING MODE
This mode can be selected by pressing B2 or SW2 until the cooling symbol (only) is shown on both the
remote control's and L1 display. The internal fan is always switched on, and runs at the selected speed (set
by pressing B6 or SW3) if the compressor is also switched on, otherwise it runs always at minimum speed
(except during defrosting subprogram, see below for further details).
Here are the details about the available fan speeds:
COOLING
MODE
The temperature set-point (Tset) can be adjusted from 16°C to 30°C in 1°C steps by means of B4/B5 or
SW4/SW5, and its value is shown both on remote and local interfaces (by D1, D2, and S1+S2='°C').
If automatic fan speed is selected (only from the remote control by pressing B7) the
High FAN
1280 r/min ±5%
1100 r/min ±5%
High FAN
1280 r/min ±5%
1100 r/min ±5%
Med FAN
Min FAN
920 r/min ±5%
Med FAN
Min FAN
920 r/min ±5%
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