Operator Control Station (OCS)
Powerful integrated control for TC Series Center Chillers.
Compact OCS units combine a controller, operator interface, I/O and networking capability into
one seamless solution. PLC
with touchscreen HMI is available as an option.
Operational display
Users can view system conditions, input operating parameters and make control adjustments from a single interface point. Display any of the 24 report screens (including 11 refrigerant reports) in either metric or English measurements.
Report screens include:
- Chiller on/off with security interlock
- Process coolant set point
- Actual inlet and outlet process coolant temperature
- Entering condenser water temperature
- Minimum and maximum compressor speed
- Actual demand kW
- Three phase volts
- Three phase amps
- DC bus voltage
Alarm display
Every TC Series Chiller comes with 12 adapative alarm control report screens.
Alarm screens include:
- High process supply water temperature
- Low refrigerant suction pressure
- High refrigerant discharge temperature and pressure
- Three phase electrical current trip
- Compressor bearing fault
- Compressor motor fault
Electronic expansion valve and eletronic condenser water regulating valve displays
- Nine operational points of information (three on the electronic expansion valve and six on the electronic condenser water regulating valve).
Load profile history
- Chiller demand history is displayed on 10 discrete screens from 0 to 10% through 90 to 100% (in hours, minutes, and seconds).
Motor profile
- There are six availalble screens that show motor information from motor amps used to power kW.
Optional operational points of information include:
- Electronic load balance valve with four data points.
- Analog output available for display of water flow rate or pressure.