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*Support Telecommunication, CMCC, UNICOM protocols, ModBus and RS485 protocols.
*Arbitrary definition of unique identification number via monitoring software, easy for operation and maintenance;
*Use fresh air valve to supply fresh air to cool the base station (when temp diff. large), energy saving;
*Control the room fan(variable speed),outdoor fan(variable speed)，E-heater;
*Detect the speed of the fan and control the fan;
*Room fan, Outdoor fan low speed protection;
*Unit auto detection function; Temp. high and low protection;
*Probe fault alarm;
*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 the terminal on the controller board are made of Euro standard ,easy to install;
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The Min speed of the fan, The Max speed of the fan, The fan speed difference alarm, Room fan speed change point, Room fan full speed temp point, Room fan stop temp point, Outdoor fan speed change point, Outdoor fan full speed temp point, Outdoor fan stop temp point, Heating start temp, Heating sensibility, Temp high /low alarm;
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*Controller dimension: 125mm×116mm, fixed by 4 fixing holes (Hole dia:4.5mm), transverse hole distance 93.2mm,
vertical hole distance 108.2mm;
*5 digital inputs;
*6 relay control outputs;
*4 analogue inputs
*Relay power output: 250V/5A;
*Transformer power output: 12V/1A.
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