1. Integrated Chiller Control Functions
   - Provides comprehensive chiller control within a single device, eliminating the need for additional configuration.
   - Built-in control functions include EEV control, compressor control, outdoor fan control, oil circulation pump control, liquid injection control, hot gas control, heater control, oil, temperature control, and pressure equalization control.

2. Precision Control
   - Achieves precise oil temperature regulation with 0.1°C accuracy.
   - Integrated control of EEV, outdoor fan, and compressor ensures stable and accurate operation.

3. Enhanced Protection Features
   - Provides enhanced high pressure, low pressure, low compression ratio, oil temperature, discharge temperature, compressor overcurrent, inverter overvoltage, inverter temperaure protection.

4. Built-in Sensorless Inverter for Compressor
   - Implements latest sensorless technology for stable operation even at low speeds.
   - Optimized current control ensures high energy efficiency.

5. Adaptive Protection Function
   - Enhances protection beyond standard safety features to prevent unexpected shutdowns due to environmental conditions.
   - Adjusts operating speed to compensate for rising ambient temperatures.
   - Detects changes in compressor and fan loads and dynamically optimizes performance.

6. Replacement for Old Japanese Models
   - Supports standard 3phase 220V power, making it a compatible replacement for older Japanese chiller models.

SPEC	INB23-SK	INB33-SB	INB23-SB
Power supply	3P 3W 220Vac 60Hz	3P 3W 380Vac 60Hz	1P 220Vac 60Hz
Rated capacity	3kW	4kW	4kW
Applicable compressor Rated capacity(RT)	2.5RT	3RT	3RT
Applicable compressor Rated capacity(W)	9kW	10.5kW	10.5kW
Input/Output specitications	4-20mA input, start signal input, RS-485 Modbus communication input, discharge temperature sensor input, alarm signal output, 0-20mA pressure sensor input x 2, liquid injection output, solid output, display-only power input, 220V single-phase fan output, motor output
Remarks	EEV output and hybrid	Built-in filter	PFC built-in
Reactor	KAT0502	KAT0506	KAT0508

Power	Rated voltage(V)	Single phase / 220V(±10%)
	Rated frequency	60Hz
Analog input	4~20mA input	2ports
	Thermistor input	1port
Digital input	DC24V(Self-powered)	2ports
Digital output	Relay non-powered output	250VA-3A 4ports
Communication	communication speed	9600, 19200, 38400, 118200
	communication distance	Up to 1.2km(Depending on the environment, the distance can be reduced)
	Protocols	Modbus RTU
	DATA	none parity, 1 stop bit, 8bit
Usage environment	Temperature of use	-10~50℃
	Storge Temperature	-20~65℃
Recommended compressor specitications	Capacity	4kW
	Input specitications	Single phase 220V
	Output current	20Arms
	Recommended capacity	3RT
	Scope of use	1000~7000RPM
Recommended fan specitications	Capacity	300W
	Input specitications	Single phase 220V