selected, the unit operates with a free temperature setting, progressively lowering the ambient temperature and
humidity. When the dehumidification programme DRY is in operation, the FAN SPEED button cannot be used.
I. 4.4 HEATING MODE
To set the heating mode HEAT, proceed as follows:
• Select the heating programme by pressing the MODE key (1);
• Adjust the desired temperature by pressing the TEMP keys (2). The display shows values from 17 °C to 30 °C;
• Adjust fan speed by pressing FAN SPEED key (3), choosing between AUTO and other speeds HIGH-MED-LOW;
• Point the remote control at the unit receiver and press the ON/OFF key ON/OFF (4);
• Adjust the airflow in keeping with requirements by using the SWING key (5) or AIR DIRECTION key (6). Once these
adjustments have been made, they will be offered when the unit is switched back on. If received by the unit, every
signal transmitted by the remote control is confirmed by a "beep".
I. 4.5 FAN MODE
To set the fan mode FAN, proceed as follows:
• Select the fan mode by pressing the MODE key (1);
• Adjust fan speed by pressing FAN SPEED key (3), choosing between AUTO and other speeds HIGH-MED-LOW;
• Point the remote control at the unit receiver and press the ON/OFF key ON/OFF (4);
• Adjust the air flow in keeping with requirements by using the SWING key (5) or AIR DIRECTION key (6); Once these
adjustments have been made, they will be offered when the unit is switched back on. If received by the unit, every
signal transmitted by the remote control is confirmed by a "beep" sound.
I. 4.6 COMFORT FUNCTIONS
I. 4.6.1 Anti-Heating
The ANTI-HEATING function is envisaged for COOL and DRY operating modes. It prevents the fan from starting up if
the inlet water temperature at the exchanger is above 22°C for the minimum speed and 25°C for the medium and
maximum speed, thus preventing unpleasant hot air flows. This situation could occur the first time the unit is started or
after long periods out of use. When the ANTI-HEATING function is active, the red DEF./FAN LED is on.
I. 4.6.2 Anti-Cooling
The ANTI-COOLING function is envisaged for the HEAT operating mode. It prevents the fan from starting up if the
inlet water temperature at the exchanger is below 28°C for the minimum speed and 32°C for the medium speed and
maximum speed, thus preventing unpleasant cold air flows. This situation could occur the first time the unit is started
or after long periods out of use. When the ANTI-COOLING function is active, the red DEF./FAN LED is on.
IMPORTANT!
The unit fan stops when the set temperature is reached and is then automatically reactivated at minimum speed to
prevent air stratification phenomena in the vicinity of the appliance.
I. 4.7 DESCRIPTION OF THE UNIT INDICATORS
The indicators found on the unit panel provide information on the unit status or any alarm signals. Moreover, if it is
temporarily not possible to use the remote control or the wire control, the MANUAL key can be used to operate the
unit in manual mode.
Indicators for models: HCA1 22-29-35-42
HCA1/4 35-50
1
3
OPERATION TIMER DEF./FAN ALARM
1. Infrared receiver.
2. Manual operation key (MANUAL).
3. OPERATION LED (green). Indicates that the unit is on.
4. TIMER LED (yellow). Indicates that the TIMER has been set.
5. DEF./FAN LED (red). Indicates that the ANTI-COOLING or ANTI-HEATING function is active.
6. ALARM LED (red). Indicates that the "condensation water level" alarm is active.
7. Temperature display (only for models HCA1 60 - 80 and HCA1/4 60 - 80 ). Indicates the set temp. in AUTO, COOL
and HEAT mode.
I. 4.7.1 Manual operation (without remote control or wire control)
In the event of an emergency (for example, when the remote control or wire control are broken) the unit can be
operated using the indicators envisaged on the panel of the unit itself. By pressing the MANUAL key several times, it is
possible to change the unit operating mode in keeping with the following outline:
40
4
2
5
6
MANUAL
OFF
Indicators for models: HCA1 60
HCA1/4 60
2
OPERATION TIMER
AUTO
HEAT
COOL
3
4
7
5
6
1
DEF./FAN
ALARM