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.