Air Conditioner Unit Operation - Siesta ATY25FMV1B Installationshandbuch

Dry Mode
• When the air humidity is high, the unit can operate in dry
mode. Press <MODE> button and choose <DRY>.
• If the room temperature is 2°C/3.6°F higher than the set
temperature, the air conditioner will operate under
cooling mode until it reaches within the 2°C/3.6°F range
of difference compared to the set temperature before it
converts to dry mode.
• If the room temperature is within the 2°C/3.6°F range of
difference compared to the set temperature, it will
directly operate under dry mode.
• The unit will operate at LOW speed under dry mode.
Heat Mode (for heat pump unit only)
• When the unit is switched on from cold start or
defrosting cycle, the indoor fan will start to operate only
after the coil reaches the desired temperature.
• When the set temperature is achieved, the indoor fan will
operate until the coil cannot provide anymore
additional heat.
Horizontal Air Flow Control
• For more effective air circulation, you can manually
adjust the air discharge grille to the left or right.
• During cool mode operation and dry mode operation, do
not direct the air discharge louver downwards for too long.
If operating continues in this way, condensation may
occur on the louver, thus resulting in drippings.
Hot Keep (for heat pump only)
• During compressor cut off, the indoor fan can be switched
to
(i) ON (default) or
(ii) OFF or
(iii) Interval on and off
by setting the slide switch shown in the diagram.
• The switch is located at the front frame cover (next to the
ON/OFF switch).
Note : When the option is selected, the power supply of the
unit needs to be reset in order to activate the
function.
Multi-Split (for heat pump only)
• The unit can be switched to multi split (MS) by setting the
slide switch shown in the diagram.
• For hot keep, during compressor cut off, the indoor fan
motor will switch to OFF by default.
Note : When the option is selected, the power supply of the
unit needs to be reset in order to activate the
function.

AIR CONDITIONER UNIT OPERATION

12
Overheating Protection (for heat pump unit only)
• In case the internal and/or the external temperature is to
high, or that the filter is dirty and clogged up, the
refrigerant may be overheated. The compressor will cut
out when the condensing temperature reaches 62°C/
143.6°F.
Frost Prevention
• When the air filter is dirty, the evaporating temperature
will decrease and eventually cause frosting.
• The LED light will blink to indicate that the filter is dirty.
If the evaporating temperature reaches -1°C/33.8°F, the
unit will trip and defrost.
Horizontal
25˚C / 77˚F
ON/OFF switch