Copeland E3 - Page 9

©2025 Copeland LP.
026-1803 R13 Supervisor I&O User Guide ix
TABLE OF CONTENTS
9.38.1 Overview................................................................................................................................................................................ 9-51
9.38.2 Case Circuit Control Software Overview..................................................................................................................... 9-52
9.38.2.1 Valve Control .......................................................................................................................................................................................... 9-52
9.38.3 Refrigeration Control......................................................................................................................................................... 9-52
9.38.3.1 EEVs (Liquid Pulse and Liquid Stepper) ...................................................................................................................................... 9-52
9.38.3.2 EEPRs (Suction Stepper) .................................................................................................................................................................... 9-53
9.38.4 Defrost Control ................................................................................................................................................................... 9-53
9.38.4.1 Defrost States.......................................................................................................................................................................................... 9-53
9.38.4.2 Defrost Types.......................................................................................................................................................................................... 9-54
9.38.4.3 Defrost Termination ............................................................................................................................................................................. 9-54
9.38.4.4 Demand Defrost..................................................................................................................................................................................... 9-54
9.38.4.5 Emergency Defrost............................................................................................................................................................................... 9-55
9.38.4.6 Defrost Schedule Summaries........................................................................................................................................................... 9-55
9.39 Irrigation Control......................................................................................................................................................................... 9-55
9.40 TD Control..................................................................................................................................................................................... 9-56
9.40.1 Overview................................................................................................................................................................................ 9-56
9.40.2 Temperature Differential (TD) Strategy....................................................................................................................... 9-56
9.40.3 TD Control Fail-Safes ......................................................................................................................................................... 9-56
9.40.4 Configuration....................................................................................................................................................................... 9-56
9.40.5 Setpoints................................................................................................................................................................................ 9-56
9.40.6 Inputs...................................................................................................................................................................................... 9-57
9.40.7 Alarms..................................................................................................................................................................................... 9-57
9.41 Loop/Sequence Control........................................................................................................................................................... 9-58
9.42 Modular Chiller Control ............................................................................................................................................................ 9-58
9.42.1 Learning Mode .................................................................................................................................................................... 9-59
9.42.2 The Control/Cycles Parameter ....................................................................................................................................... 9-59
9.42.3 Compressor Control........................................................................................................................................................... 9-59
9.42.3.1 Digital Scroll Compressor .................................................................................................................................................................. 9-59
9.42.3.2 Variable Frequency Drive Compressor......................................................................................................................................... 9-59
9.42.3.3 Unequal Capacity Compressors...................................................................................................................................................... 9-59
9.42.4 Bypass Valve Control......................................................................................................................................................... 9-60
9.43 XM Circuit Control ...................................................................................................................................................................... 9-60
9.43.1 Associations.......................................................................................................................................................................... 9-60
9.43.1.1 Case Circuit Association Support ................................................................................................................................................... 9-60
9.43.1.2 Dual Association Not Supported..................................................................................................................................................... 9-60
9.43.1.3 Synchronized Parameters.................................................................................................................................................................. 9-60
9.43.1.4 Visibility of Associated Parameters................................................................................................................................................. 9-61
9.43.2 Suction Group Interaction................................................................................................................................................ 9-61
9.43.2.1 Standard Suction .................................................................................................................................................................................. 9-61
9.43.2.2 Enhanced Suction ................................................................................................................................................................................ 9-61
9.43.3 Supervisory Control Functions ...................................................................................................................................... 9-61
9.43.3.1 Dewpoint Value ..................................................................................................................................................................................... 9-61
9.43.3.2 Lighting Control .................................................................................................................................................................................... 9-61
9.43.3.3 Active Setpoint Output........................................................................................................................................................................ 9-61
9.43.3.4 Defrost Scheduling............................................................................................................................................................................... 9-61
9.43.3.5 Case States.............................................................................................................................................................................................. 9-62
9.43.3.6 Case Type ................................................................................................................................................................................................ 9-62
9.43.4 Application Advisory ......................................................................................................................................................... 9-62
9.43.4.1 Synchronized Alarm Parameters..................................................................................................................................................... 9-62
9.43.5 Application Commands.................................................................................................................................................... 9-62
9.43.5.1 Start Defrost............................................................................................................................................................................................. 9-62
9.43.5.2 Stop Defrost............................................................................................................................................................................................. 9-62
9.43.5.3 Case Clean Out ...................................................................................................................................................................................... 9-62
9.43.6 Product Probe Support ..................................................................................................................................................... 9-62
9.44 XR75CX Case Display................................................................................................................................................................ 9-62