US-ENG- 18
US-ENGLISH
3.4 - OPERATING THE UNIT
3.4.1 - OPERATIONAL MODES - TURNING THE UNIT ON/OFF
• ButtonT1 is used to switch the unit off (stand-by mode) or to switch the unit back on.
An EPROM contained in the unit’s control board system settings are memorized when the unit is turned
off.
If the unit will not be used for an extended period of time it should be de-energized by turning off
the main power supply or pulling the plug from the wall outlet.
3.4.2 - WELL BEING KEY (AUTOMATIC OPERATING)
• ButtonT2 is used to allow the unit to provide optimal comfort in the space being conditioned. Based on
the temperature in the room, the unit will automatically set the operating mode (cooling, ventilation or
heating if available), the temperature setting and fan speed.
3.4.3 - COOLING MODE
• Inthismode,theunitdehumidiesandcoolstheroom.ActivatethismodebypressingbuttonT4 (run
modeselector)untilthe“snowake”symbolD3 is displayed. The desired temperature and fan speed can
now be selected.
• Afteramaximum3minutedelay(dependingwhenthecompressorranlast)thecompressorwillstart,
providing cooling to the space. Startup of the compressor is indicated by LED B being illuminated (green).
3.4.4 - DEHUMIDIFICATION MODE
In this mode the unit lowers the humidity level in the space.
• Thisfunctionisveryusefulduringtheshouldermonthsbetweencoolingandheatingseasons,particularly
on rainy days when the temperature is moderate, but the humidity in the space is high, causing occupant
discomfort.
• Inthismoderoomtemperatureandfanspeedsettingsareignoredandassuchnotemperatureandfan
speed indications are displayed.
• ActivatethismodebypressingbuttonT4 (run mode selector) until the “droplet” symbol D4 and automatic
ventilation symbol D1 are displayed.
Indehumidicationmodeitisnormalfortheunittofunctionintermittently.
3.4.5 - FAN MODE
• Whenusedinthismodetheunitdoesnotperformanyfunctioninregardstotemperatureandairhumidity
control in the room.
• ActivatethismodebypressingbuttonT4 (run mode selector) until the fan symbol D1 is displayed. In fan
mode you can select the fan speed.
3.4.6 - HEATING/ DEFROST MODE
This mode is only available on heating pump (HP) models.
• ToactivateheatingmodepressbuttonT4 (run mode selector) until the “sun” symbol D2 is displayed. The
required temperature and fan speed can be selected.
• Afteramaximumof3minutesthecompressorshouldstart,andunitprovidesheattothespace.Thestart
of the compressor is indicated by LED B being illuminated (green).