Technical data

8 Forced Mode

In this mode the system operates (COOLING or HEATING mode – fixed settings) or is switched off by

means of the MODE button on the pcb receiver. The operation modes can be selected

pressing the button in a cyclic way (OFF  COOL  HEAT  OFF…). The settings are:

COOLING mode

SET POINT temperature = 25°C

FAN SPEED = HIGH

FLAP POSITION = 3

HEATING mode

SET POINT temperature = 21°C

FAN SPEED = HIGH

FLAP POSITION = 4

This special mode is useful if the remote controller is missing or unusable.

When the remote controller operates, the function is automatically set off and the air conditioner

follows the remote controller instructions

9 Protection operations

9.1 Freeze-up

This protection prevents ice formation on the indoor coil heat exchanger. The protection is activated

as soon as the indoor coil temperature ICT decreases and acts by decreasing the compressor speed

The system exit this protection routine when ICT temperature rises above 5°C.

9.2 Cold draft

This feature prevents the supply of cold air forcing the indoor fan to a speed which cannot be changed

by the user.

If the ICT temperature goes down 32°C (in descending) or does not reach 37°C (in rising), the speed

fan is set as shown below.

9.3 Overheat internal exchanger

This feature prevents the build up of high pressure in the indoor heat exchanger during heating operatio

As soon as the indoor coil temperature (ICT) increases, compressor speed is reduced in order to avoid

heat exchanger overheating. System stops compressor operation when ICT reaches 60 °C

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