Heating & Cooling > Chillers

Standard and
Advanced PLC Screen

The Standard PLC Screen are have Chilled water pumps variable 1 to 3 process pumps and recirculation pumps. In systems with multiple pumps, they may be altered at specific intervals. The standard PLC Screen also has Network capability over DH-485 to communicate with a chiller with the Advanced Control Package.

The Advanced PLC Screen has alarm condition indicators for safety devices including motor overloads (compressor or pump), flow switches, freezestats, refrigerant pressures, voltage/phase sensor, high and low temperature alarms. The Advanced PLC also comes with hour meters to accumulate run time in compressors or pumps. Chilled water pumps: Variable 1 to 3 process pumps and recirculation pumps. In systems with multiple pumps, they may be altered at specific intervals.

• Standard PLC Screen: Control up to 4 compressors in 1 or 2 circuits. or pumps
• Standard PLC Screen: Alarm condition indicators for safety devices including motor overloads (compressor or pump), flow switches, freezestats, refrigerant pressures, voltage/phase sensor, high and low temperature alarms.
• Standard PLC Screen: Hour meters to accumulate run time in compressors or pumps.
• Advanced PLC Screen: Cooling Tower Fans: Variable 1 to 4 fans, to be controlled with PID algorithm. Operator may choose to alternate the fans at specific intervals.
• Advanced PLC Screen: Cooling Tower Pumps: Variable 1 to 3 process pumps and recirculation pumps. In systems with multiple pumps, they may be alternated at specific intervals.

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S Series Central Chiller