Specifications

SiBE04-624 Description of Operation
Function and Control 15
1. Description of Operation
1.1 Indoor Unit
(Input) (Output)
Room
temperature
thermistor
Temperature
control
Indoor fan
control
Fan motor
Swing motor
LED
indication
Buzzer
Solenoid valve (for
dehumidification)
Cold-draft
prevention
Air flow
direction control
MOLD PROOF
operation
Service diagnosis
function
Automatic
operation
Dehumidifying
(dry) operation
Cooling
operation
Heating
operation
Ventilation
operation
Freeze-up
protection
control
Heating
overload control
Condensation
control
Defrost control
Indoor unit
Heat exchanger
thermistor
Humidity sensor
Fan speed
Switch
ON/OFF (test
operation switch)

Transmit signals to outdoor unit to
change the frequency of
compressor according to the
difference of temperature between
preset temperature and room
temperature.
 When the air flow rate is set "auto"
the air flow rate will automatically
be adjusted according to the
difference between the preset
temperature and room
temperature, and the indoor heat
exchanger temperature.
 Five levels of air flow rate setting from
“ ” to “ ” plus “ ” “ ” are
available.
Indoor fan is halted at "hot
start".
The air flow rate is restricted.
You can choose any flow
direction from vertical,
horizontal and 3-D swing
patterns. (3-D mode repeats
vertical and horizontal swing
alternately)
COMFORT airflow mode
COOLING BREEZE
Draftless operation
In case of fault, operation
stops automatically and the
error code is displayed on the
remote controller.

Operation mode is automatically
selected according to the room
condition.
 The room temperature is determined
based on the room condition when
automatic
operation startup, and
subsequently
reviewed at a regular
interval.
4-way valve is in the cooling
cycle position.
Closing solenoid valve, the
unit starts reheating
dehumidification in full-scale.
4-way valve is in the cooling
cycle position.
The 4-way valve is in the
heating cycle position.
Stop operation when indoor
heat exchanger temperature
is too low
(automatically restored)
Stop operation when indoor
heat exchanger temperature
is too high.
(automatically restored)
Switches to cooling cycle and
defrosts.
Indoor fan stops operation(12
min. maximum )
Remote
controller
Setting switch jumper
Outdoor unit
signal
ON/OFF
Temperature/air flow rate/air flow
direction etc.
Diagnosis mode
Test operation mode
Hose length setting
Address setting
(R3387)