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*Modules reconfiguration automatic recognize function.
*Module auto spoilage balance function.
*Master unit backup function (when master unit is damage, the slave unit will become master unit)
*Two steps anti freeze and intelligence defrost function.
*Condenser directly control, free of external pressure switch.
*Built-in phase sequence/phase loss protection; Manual run function; Memory function
*Auto restarts function and password protection function.
*Timer on /off function. Terminal control function.
*Compressor delay protection and auto balance spoilage for multi compressors.
*Built-in compressor current detection, no need overload protector.
*Compressor overload, compressor pressure high/ low protection.
*Chill water temperature low /high protection.
*Strong stability, 0.15-80MHz interference rejection, 4KV high voltage and surge resistance
*SMT technology, 48 hrs burn-in test for ensuring quality
*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
*Control logic implemented on the control board. Continue working even HMI has fault.
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Auto restart, Outlet water temp admendation, Return water temp. admendation, Cool water temp. setting, Heat water temp.setting, The temp.difference range, Outlet water temp.low, Compressor PL delay, Water flow delay, Defrost temp.diff, Defrost start temp. , Defrost end temp. , The min defrost interval, The max defrost time, Unit run delay control Outlet water temp.high, Factory reset, Auxiliary heater start up temp,Auxiliary heater stop temp, Cooling tower fan on temp. , System mode, Number of module, The max defrost capacity, Temperature control mode, Stop valve, 4-ways valve selection;
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*Controller dimension: 187mm×131mm, fixed by 4 fixing holes (Hole dia:4.5mm), transverse hole distance 159.3mm,
vertical hole distance 114mm;
*12 digital inputs;
*12 relay control outputs;
*8 analogue inputs
*Suitable for SL800 Text HMI
*Relay power output: 250V/5A;
*Transformer power output: 12V/1A.
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