Chiller Control

Standard

• Up to five (6) discrete liquid level float switches (LLCO, LLA, OP1, OP2, HLA, and HLS).

and/or

• Analog continuous liquid level sensor with programmable setpoints for HLS, HLA, OP, LLA, and LLCO levels and their individual deadbands.
• Up to two (2) liquid feed solenoid valves.
• Operation of liquid feed solenoid valves based on liquid level.
• Back Pressure Regulator (BPR) support to control product temperature. BPR may be either a dual-pressure or continuously regulating valve using auto tuning PID control.
• Temperature monitoring and safety control of liquid

Options

• Customized to the specific requirements of the customer.
• Shutdown of compressors based on high level shutdown (HLS).
• Optional pump control to maintain a liquid flow rate or liquid pressure.
• Flow rate monitoring by either flow switch or GPM flow meter.
• Support for closing liquid feed valves when no compressors are running.
• Support for shutdown when no compressors are available or on other user defined conditions.