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* Auto restart function;
* Support remote control function;
* With timer ON/OFF, service remind and lock function
* Support cooling, heating, supply air modes;
* Compressor delay protection function and auto balance spoilage for multi compressors;
* Support trial run function;
* Off memory function
* High/low supply air temperature and probe lost protection;
* Strong stability, 0.15-80MHz interference rejection, 4KV high voltage and surge resistance ;
* SMT technology, 48 hrs burn-in test for ensuring quality;
* Easy devices control conversion via dial switch;
* MODBUS-RTU RS485 Widely-used communication protocol, up to 1km max distance (Gateway Free);
* PCB Surface painted with CRC, avoid leakage, short circuit, and erosion from acid/ alkali/ alcohol/ humidity/salt spray;
* Featured with tension and torsion resistance probe, long working life;
* Wide voltage range, avoid misoperation caused by voltage fluctuation;
* All I/O on control board fixed with indicator lights for intuitionistic estimation. Control logic implemented on the control board;
* Featured with European terminal blocks for I/O connection, easy assembly.
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Return air temperature, System time, Real timer, Operation mode, Service remind and lock, Trial run.
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*Controller dimension: 158mmX104mm, fixed by 4 fixing holes (Hole dia:3.5mm), transverse hole distance 127.5mm, vertical hole distance 88.5mm;
*10 digital inputs: Water pump, Compressor high/low pressure, Water flow switch, Fire alarm;
*7 relay outputs: Compressor, Water pump, Four-way valve, Fault outputs;
*2 Analogue inputs: Water-out/in temperature;
*Suitable for SL300 text HMI, SL200 character HMI;
*Relay power output: 250V/5A;
*Transformer power output: 12V/1A.
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