Contents
Contents
Introduction.................................................................................................................................................... 5
Application...................................................................................................................................................... 5
Dimensions..................................................................................................................................................... 6
Terminal block and terminal descriptions.................................................................................................. 7
Cleaning the controller UI............................................................................................................................. 9
Controller operation.................................................................................................................................... 10
Refrigeration mode........................................................................................................................... 10
Defrost mode..................................................................................................................................... 10
Defrost types...................................................................................................................................... 10
Off-cycle defrost....................................................................................................................................... 10
Electric defrost.......................................................................................................................................... 10
Hot gas defrost......................................................................................................................................... 11
Defrost termination types................................................................................................................ 11
Time-based defrost termination............................................................................................................ 11
Temperature sensor defrost termination............................................................................................. 11
Time-based termination overrides temperature termination........................................................... 11
Defrost schedule types............................................................................................................................ 11
Compressor and evaporator fan start delays................................................................................ 12
Anti-short cycle delay.............................................................................................................................. 13
Evaporator fan drip-time delay.............................................................................................................. 13
Evaporator fan time delay...................................................................................................................... 14
Detailed procedures.................................................................................................................................... 15
Controller UI....................................................................................................................................... 15
Standard and conditional screens................................................................................................... 18
Workflow for setting up the controller........................................................................................... 18
Navigating the controller screens................................................................................................... 19
Navigating the high-level status and setup start screens............................................................ 20
Viewing the status............................................................................................................................. 23
Viewing the QREV and PSHC status................................................................................................ 25
System setup parameters................................................................................................................ 26
Setting up the system date and time.................................................................................................... 26
Setting up the system components....................................................................................................... 28
Setting up a QREV and PSHC.................................................................................................................. 31
Setting up the system setup parameters............................................................................................. 32
Setting up the refrigeration setup parameters............................................................................. 33
Setting up the defrost parameters.................................................................................................. 35
Setting up a defrost schedule.......................................................................................................... 37
Setting up adaptive defrost parameters........................................................................................ 39
Setting up the binary input parameters......................................................................................... 41
Setting up the alarm setup parameters......................................................................................... 43
Setting up the file system................................................................................................................. 48
MR5 Series Panel Mount Case Controller Technical Bulletin
3
