Technibel Climatisation MPAF129R5IAA, Technical Data & Service Manual

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5-8 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 indoor unit control board. 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
5-9 Protection operations indoor unit
5-9.1 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 compresor speed
The system exit this protection routine when ICT temperature rises above 8°C.
5-9.2 Cold draft
This feature prevents the supply of cold air forcing the indoor fan to a speed which cannot be changed
by the user. As soon as the protection mode is exited, speed can be changed manually through the
remote controller. The protection acts in the following
5-9.3 Overheat
This feature prevents the build up of high pressure in the indoor heat exchanger during heating operation
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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