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3.4 - OPERATING THE UNIT
3.4.1 -
Operational Modes - Turning The Unit On/Off
• Button T1 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)
• Activate this mode pressing button T4 until the "A" symbol D7 is displayed.
• It is used to allow the unit to provide optimal comfort in the space being conditioned. Based on the tem-
perature 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
• In this mode, the unit dehumidifies and cools the room. Activate this mode by pressing button T4 (run
mode selector) until the "snowflake" symbol D3 is displayed. The desired temperature and fan speed can
now be selected.
• After a maximum 3 minute delay (depending when the compressor ran last) the compressor will start,
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.
• This function is very useful during the shoulder months between cooling and heating seasons, particularly
on rainy days when the temperature is moderate, but the humidity in the space is high, causing occupant
discomfort.
• In this mode room temperature and fan speed settings are ignored and as such no temperature and fan
speed indications are displayed.
• Activate this mode by pressing button T4 (run mode selector) until the "droplet" symbol D4 and automatic
ventilation symbol D1 are displayed.
In dehumidification mode it is normal for the unit to function intermittently.
3.4.5 -
FAN Mode
• When used in this mode the unit does not perform any function in regards to temperature and air humidity
control in the room.
• Activate this mode by pressing button T4 (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.
• To activate heating mode press button T4 (run mode selector) until the "sun" symbol D2 is displayed. The
required temperature and fan speed can be selected.
• After a maximum of 3 minutes the compressor should start, and unit provides heat to the space. The start
of the compressor is indicated by LED B being illuminated (green).
US-ENG- 18
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