System setup parameters................................................................................................................ 49
Date and time setup................................................................................................................................ 49
Sensor setup............................................................................................................................................. 50
QREV and PSHC setup............................................................................................................................. 50
Evaporator fan control............................................................................................................................ 50
Adaptive defrost setup parameters................................................................................................ 51
Expected defrost duration...................................................................................................................... 51
Defrost interval......................................................................................................................................... 51
Maximum time between defrosts.......................................................................................................... 51
Minimum time between defrosts.......................................................................................................... 51
Blackout period........................................................................................................................................ 51
Binary inputs and alarms................................................................................................................. 52
Binary input modes................................................................................................................................. 52
Setting up binary input modes.............................................................................................................. 52
Alarm setup parameters......................................................................................................................... 52
Alarm actions............................................................................................................................................ 53
Alarm settings.......................................................................................................................................... 53
Alarm vs warnings................................................................................................................................... 54
Cooling shutdown............................................................................................................................. 54
System shutdown.............................................................................................................................. 54
Info field codes.................................................................................................................................. 54
Connecting to a communications network............................................................................................... 57
External communications adapter connection.............................................................................. 57
Network and device requirements and limitations....................................................................... 58
Communications adapter wiring connections............................................................................... 58
Wiring the RS485 communications port to a communications network.......................................... 58
Connecting the EOL resistor................................................................................................................... 59
Setting a new device address.......................................................................................................... 60
BACnet objects available on the MR5 controller........................................................................... 60
Electrical ratings........................................................................................................................................... 65
Related documentation............................................................................................................................... 66
MR5 Series Panel Mount Case Controller technical specifications........................................................ 67
North American emissions compliance..................................................................................................... 70
United States...................................................................................................................................... 70
Canada................................................................................................................................................ 70
Product warranty......................................................................................................................................... 70
Software terms............................................................................................................................................. 70
MR5 Series Panel Mount Case Controller Technical Bulletin
4
Discontinued
