
Air and Water cooled inverter chillers and heat pump
TABLE OF CONTENTS
1 SAFETY CONSIDERATIONS ....................................................................................................................................... 7
1.1 General ................................................................................................................................................................. 7
1.2 Avoid electrocution ................................................................................................................................................ 7
1.3 Safety Devices ...................................................................................................................................................... 7
1.3.1 General safety devices ................................................................................................................................. 7
1.3.2 Circuit safety devices .................................................................................................................................... 7
1.3.3 Component safety devices ........................................................................................................................... 8
1.4 Available sensors .................................................................................................................................................. 9
1.4.1 Pressure transducers .................................................................................................................................... 9
1.4.2 Temperature sensors .................................................................................................................................... 9
1.4.3 Thermistors ................................................................................................................................................... 9
1.4.4 Leak detectors .............................................................................................................................................. 9
1.5 Available Controls ................................................................................................................................................. 9
1.5.1 Evaporator pumps ........................................................................................................................................ 9
1.5.2 Condenser pumps (W/C units only) .............................................................................................................. 9
1.5.3 Compressors ................................................................................................................................................ 9
1.5.4 Expansion Valve ........................................................................................................................................... 9
1.6 Customer Terminal Block Connections ................................................................................................................. 9
1.6.1 Evaporator Flow Switch .............................................................................................................................. 10
1.6.2 Condenser Flow Switch (W/C units only) .................................................................................................... 10
1.6.3 Double setpoint ........................................................................................................................................... 10
1.6.4 Current limit (optional) ................................................................................................................................ 10
1.6.5 External Fault.............................................................................................................................................. 10
1.6.6 Rapid Restart (optional) .............................................................................................................................. 11
1.6.7 Remote On-Off ........................................................................................................................................... 11
1.6.8 General Alarm............................................................................................................................................. 11
1.6.9 Compressor Status ..................................................................................................................................... 11
1.6.10 Circuit Alarm (optional) ............................................................................................................................... 11
1.6.11 Evaporator Pump Start ............................................................................................................................... 11
1.6.12 Condenser Pump Start (W/C units only) ..................................................................................................... 11
1.6.13 Demand limit ............................................................................................................................................... 11
1.6.14 Setpoint override ......................................................................................................................................... 11
1.6.15 Pump VFD Signal (A/C units only) .............................................................................................................. 11
2 GENERAL DESCRIPTION .......................................................................................................................................... 12
2.1 Basic Information ................................................................................................................................................ 12
2.2 Abbreviations used .............................................................................................................................................. 12
2.3 Controller Operating Limits.................................................................................................................................. 12
2.4 Controller Architecture ........................................................................................................................................ 12
2.5 Communication Modules ..................................................................................................................................... 13
3 USING THE CONTROLLER ....................................................................................................................................... 14
3.1 General Recommendation .................................................................................................................................. 14
3.2 Navigating ........................................................................................................................................................... 14
3.3 Passwords........................................................................................................................................................... 15
3.4 Editing ................................................................................................................................................................. 15
3.5 Basic Control System Diagnostic ........................................................................................................................ 16