Alarm Output .................................................................................................................................................. 15
RS-232/RS-485 Serial Output........................................................................................................................ 15
External Piping................................................................................................................................................... 16
General Considerations ................................................................................................................................. 16
Process Fluid Connections ............................................................................................................................ 16
Facility Water Connections ............................................................................................................................ 16
Reservoir Drain .............................................................................................................................................. 16
Reservoir Vent ............................................................................................................................................... 16
Full Flow Bypass ............................................................................................................................................ 17
Process Coolant ................................................................................................................................................ 18
Suitable Fluids................................................................................................................................................ 18
Startup ............................................................................................................................................................... 19
Facility Water Flow (water-cooled units only) ................................................................................................ 19
Filling the Reservoir ....................................................................................................................................... 19
Starting Process Fluid Flow ........................................................................................................................... 20
Normal Operation................................................................................................................................................ 21
Power On........................................................................................................................................................... 21
Temperature Unit (°C or °F) Selection / Factory Default Reset ........................................................................ 21
Adjusting the Set Point Temperature................................................................................................................. 22
Selecting the Pressure / Flow Rate Display and Units ...................................................................................... 22
Displaying Internal (P1) and External (P2) Probe Temperatures...................................................................... 22
Setting Operational Parameters / Limits............................................................................................................ 22
High Temperature Limit (HL) ......................................................................................................................... 25
Low Temperature Limit (LL)........................................................................................................................... 25
High Ambient Temperature Limit (HA)........................................................................................................... 26
Maximum Fluid Pressure (FP) ....................................................................................................................... 26
Minimum Flow Rate (FL)................................................................................................................................ 26
Lower Band (Lb)............................................................................................................................................. 27
Upper Band (Ub) ............................................................................................................................................ 27
Remote Probe (rP)......................................................................................................................................... 27
Calibration Offset (C1 / C2 / C3) .................................................................................................................... 27
Compressor Delay (Cd) ................................................................................................................................. 28
Flow Rate Calibration (Fc) ............................................................................................................................. 28
Coolant Density (dS)...................................................................................................................................... 28
Specific Heat (Sh) .......................................................................................................................................... 28
Current Control (CC)...................................................................................................................................... 28
Communications Baud Rate (PC).................................................................................................................. 29
Low Ambient Temperature Limit (LA) ............................................................................................................ 29
Password (Pd)................................................................................................................................................ 29
HGB Valve Delay (td)..................................................................................................................................... 29
Fuse Bits (Fb)................................................................................................................................................. 29
Enabling / Disabling the Local Lockout.............................................................................................................. 30
Display, Alarm and Error Messages.................................................................................................................. 31
Automatic Restart from Alarm Mode ................................................................................................................. 33
Routine Maintenance .......................................................................................................................................... 34
Recommended Routine Maintenance Schedule ............................................................................................... 34
Reservoir Coolant Level .................................................................................................................................... 34
Coolant Freeze Protection ................................................................................................................................. 34
Inline Strainer..................................................................................................................................................... 34
Air Filters............................................................................................................................................................ 35
Troubleshooting.................................................................................................................................................. 36
Troubleshooting Chart ....................................................................................................................................... 36
Compressor Overload Fault (Ft20).................................................................................................................... 37
Low Pressure Sensor..................................................................................................................................... 37
High Pressure Sensor.................................................................................................................................... 37
Technical Information......................................................................................................................................... 38
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