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Supply Voltage: 230 VAC ± 15 % Single Phase Separate power supplies for each AC
Output Contact Rating: 20 Amps. at 230 VAC .

Front Panel:
1) 16 char. 2 lines LCD display with backlit.
2) 4 Key keypads for programming.
3) AC ON indication for each AC
4) Controller Healthy Indication by Blinking Green LED
5) ALARM indication by Red LED.

Sensing:
1) Inbuilt Voltage sensing
2) Temperature Sensing by precise Temp. sensor

Terminals:
1) C/NO output for each AC Compressor.
2) AC fail alarm relay o/p.
3) Room High alarm relay o/p.
4) Fire Input
5) RS-485 port

Alarms/ Protections:
1) Over voltage protection set point user
2) Under voltage protection set point user
3) Automatic cut off for smoke/Fire.
4) High/low temperature alarm set point user
5) Sensor fail timer mode settings

Communication:
Non-Isolated RS-485, Baud Rate 9600, No Parity , 1 stop bit.
( Please take care when handling RS-485. Shorting the terminals may permanently damage the port )
Standard Modbus RTU with functions 04,02 and 06