Specifications

Description of Operation SiBE04-624
16 Function and Control
1.2 Outdoor Unit
(Input) (Output)
Compressor ON/OFF
control
Compressor
4-way valve
Fan motor
Electronic
expansion valve
Solenoid
valve
LED
indication
Humidifying
operation control
Motor for
humidifying rotor
Fan motor
Compressor
capacity control
3 min. stand-by
function
Defrost control
4-way valve
control
Warming up function
Outdoor fan
control
Through the year
cooling control
Frost prevention
control
Overload control
Electronic expansion
valve control
Solenoid valve
control
Service diagnosis
function
Forced operation
function
Outdoor air
thermistor
Discharge pipe
thermistor
Heat exchanger
thermistor
Humidifying
thermistor
Fin thermistor for
fan driver
Indoor unit signal
Setting switch jumper
OL
Outdoor unit
Frequency control
Switches to cooling cycle and defrosts.(Outdoor fan stops)
Energize/de-energize the 4-way valve coil according to the
operation mode.
The state of the 4-way valve is not switched during 3 minutes
after the operation mode is switched or the compressor stopped.
Preheat the compressor (open-phase operation) according to the
discharge pipe temperature.
Change fan speed according to the operation status.
On cooling operation, if outdoor temperature is low, the fan
sometimes stops.
After compressor stopped, outdoor fan will be operated about 1
minute.
The compressor will stop according to the outdoor temperature
and outdoor heat exchanger temperature in order to protect it
during cooling /drying operation.
In case of fault, operation stops automatically and the type of
fault is indicated by LED.
CT
(R3389)