MICROCONTROLLERS with their inherent advantages are being increasingly used in the industry.With growing shortage and escalating cost of Electrical Energy, accurate monitoring of Air Conditioning parameters has become necessary.7A/C CONTROLLER is most useful for controlling A/Cs. This instrument is able to maintain Room Temperature with an accuracy of 0.1 Degree Celsius by automatic measurement of Room temperature and accordingly controlling A/C ON/OFF. It also protects Costly Air conditioner from Unhealthy condition's such as over load/under load etc. by automatically cutting off the Load.
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Modbus Compatibility with BMS over RS-485 Electrical Standard
- Supply Voltage: 250 VAC +- 15 %
- Output Contact Rating: 30 Amps at 250 V contacts.
- Front Panel: 16 char. x 2 lines LCD display with backlight.
4 Key keypad for programming.
A/C1 ON indication.
A/C2 ON indication.
A/C3 ON indication.
A/C4 ON indication.
A/C5 ON indication.
A/C6 ON indication.
A/C7 ON indication.
- Healthy Indication by Green LED.
- ALARM indication by Red LED.
- Dimensions: 330mm(W) X 220 mm (H) X 80 mm (O)
- Sensing: High Pressure(HP)/ Low Pressure(LP) sensing for every AC.
- Temperature sensing by precise Temp. Sensor.
- AHU fault sensing.
- Terminals:Separate O/Ps for each Compressor
- HP/LP input for each A/C.(It should be potential free)
- Alarms/ Protections: High Pressure/Low pressure Alarm.
- High/low temperature alarm set point user settable.
- AHU fault Alarm.
- Fully programmable.
- Complete protection for A/C from unhealthy condition.
- All set points programmable from keypad.
- Password protection for controller.
- 16 char.lines LCD display with back light, on controller front panel.
- Four key interface for onsite programming.
- Automatic display of A/C parameters one by one in Run Mode.
- Status & Healthy indication by green LED on front panel.
- Alarm indication by red LED on front panel.
- Room temperature sensing by precise sensor.
- Separate outputs for each compressor.
- Protection from High/Low Pressure.
- No separate auxiliary supply required.
- Auto reset for High/Low Pressure and High/Low Pressure alarm.
- Direct display of actual room temperature
- Automatic Timer mode operation if Room sensor fails.
- AHU controlled from unhealthy conditions & indirectly compressor by AHU fault protection
