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Built-in RS-485 communicating interface
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Provided Modbus protocol for system integration
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Provided system or local control function
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Provided ON/OFF control output signal
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Changeable heating, cooling and ventilating mode control
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Changeable high, medium, low and automatic fan speed control
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Adjustable high and low setpoint limits
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Controller address is set by DIP switch combination in each controller
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Provided auxiliary control output for interlocking control application
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Provided low temperature protecting function
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Provided power failures re-start function
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Non-volatile memory (EEPROM) retains user settings during power loss
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Provided 7 LEDs for power on, high speed, medium speed, low speed, valve open, valve close, auxiliary control output indication
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Steel housing makes this controller ideal for locating on the fan-coil units or air-conditioner