GP Series Portable Chillers Chapter 4: Operation 32 of 64

4-5 Controller Setpoints

Access Level
Variable Description Operator Supervisor
Leaving Temp Temperature of fluid out to process x x
Hi Temp Warning Setpoint for alarm to warn when leaving fluid
temperature is too high x x
Hi Temp Fault Setpoint to shut down pump and compressor based on
leaving fluid temperature x x
Compressor On
Differential Temperature Difference between Leaving Fluid
Temperature and Setpoint to turn on the compressor x
Compressor Off
Differential Temperature Difference between Leaving Fluid
Temperature and Setpoint to turn off the compressor x
Pump Stop Delay Delay time in seconds between fault and stopping the
pump x
Low Temperature
Warning Temperature to activate Low Temperature Warning
alarm x
Low Temperature Fault Temperature to activate Low Temperature Fault alarm x
Water Make-up On The tank level to turn on optional water make-up valve;
based on size of tank x
Water Make-up Off The tank level to turn off optional water make-up valve;
based on size of tank. x
Water Make-up Time The time in seconds that controller will allow for filling
the tank x
Low Level Warning Tank level that will activate Low Level Warning alarm x
Low Level Fault Tank level that will activate Low Level Warning fault x
High Level Warning Tank level that will activate High Level Warning alarm x
High Level Fault Tank level that will activate High Level Warning fault x
High Temperature
Delay Delay time in minutes between fault and stopping the
compressor and pump x
Alarm Silence Time Time in minutes to silence alarm (with optional audible
alarm). After time alarm will reactivate. x
Operator Password
Time Time in minutes for operator password to be active x
Supervisor Password
Time Time in minutes for supervisor password to be active x