OM 1280-2 • MICROTECH UNIT CONTROLLER 52 www.DaikinApplied.com
Parameter (LUI) Operating Range (Default) ABV Min Max Default Description
LwSctLnDifSpt (4.0°F) 1 8 4
“The low suction line temperature alarm setpoint
The alarm becomes INACTIVE when the
temperature gets to 28°F + this setpoint.”
DefInFanSpt 30°F to 110°F 30 110 90
OACoilTmpSpt 30°F to 40°F 30 40 32
Defrost mode ends when the defrost timer
5°F to 40°F 5 40 20
Defrost mode ends when the defrost timer
Network Communications
MinInst 0 to 4194302 0 4194302 3101000
Added to BACnetNodeAddress to determine the
Device Instance Number (BNDevInstance).
Loc 0 (“Location”) Location Location Label
DevInst 0 to 4194302 0 4194302 3101120 BACnet device instance.
DevName String 20 char. DevName BACnet device name string.
NdAddr 0 to 127 0 127 120 BACnet MSTP node address.
MSTPBaud 9600, 19200, 38400, 76800 0 3 2 BACnet MSTP baud rate.
MSTPMaxMstr 1 to 127 1 127 127 BACnet MSTP max masters.
MSTPInfoFr 1 to 5 1 5 1 BACnet MSTP info frames.
MeasUnits IMPERIAL, SI (IMPERIAL) 0 1 0 BACnet measurement units.
SndHrtBt 0 to 6553.4 sec (0.0 sec) 0 6553.4 0
Send Heartbeat. When set to non-zero, for each
NVO, this is the maximum time before each
NVO is sent-out.
RcvHrtBt 0 to 6553.4 sec (0.0 sec) 0 6553.4 0
Receive Heartbeat. If an NVI isn’t received
within this amount of time then the default NVI
will be used.
MnTimeOut 0 to 6553.4 sec (0.0 sec) 0 6553.4 0
Minimum Send Time. This amount of time must
pass before an NVO can be sent.
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