OM 1280-2 • MICROTECH UNIT CONTROLLER 51 www.DaikinApplied.com
Parameter (LUI) Operating Range (Default) ABV Min Max Default Description
CfgBO1 FAN_LOW/ECM_ENABLE 0 18 1
Selects virtual function for binary output.
Options are: DISABLED, FAN_LOW, FAN_
MEDIUM, FAN_HIGH, REVERSING_VALVE,
FAULT_OUT, OUTDOOR_FAN, EXHAUST_
FAN, PUMP, ELECTRIC_HEAT1, ELECTRIC_
HEAT2, ELECTRIC_HEAT3, COMPRESSOR1,
COMPRESSOR2, DRAIN_PAN_HEATER,
HOT_WATER_EOC, COLD_WATER_EOC,
ECM_ENABLE, AUX_HEAT
CfgBO2 FAN_MEDIUM 0 18 2
CfgBO3 FAN_HIGH 0 18 3
CfgBO4 REVERSING_VALVE/HOT_WATER_EOC 0 18 4
CfgBO5 FAULT_OUT 0 18 5
CfgBO6 OUTDOOR_FAN 0 18 6
CfgBO7 EXHAUST_FAN/AUX_HEAT 0 18 7
CfgBO8 PUMP 0 18 8
CfgBO9 ELECTRIC_HEAT1 0 18 9
CfgBO10 ELECTRIC_HEAT2 0 18 10
CfgBO11 ELECTRIC_HEAT3 0 18 11
CfgBO12 COMPRESSOR1/COLD_WATER_EOC 0 18 12
CfgBO13 COMPRESSOR2 0 18 13
CfgBO14 DRAIN_PAN_HEATER 0 18 14
CfgHtEOC_Rev DIRECT, REVERSED (DIRECT) 0 1 1
Selects if the hot water EOC output is reverse
acting.
CfgClEOC_Rev DIRECT, REVERSED (DIRECT) 0 1 0
Selects if the cold water EOC output is reverse
acting.
CfgDrPnHt_Rev DIRECT, REVERSED (DIRECT) 0 1 0
Selects if the drain pan heater output is reverse
acting.
CfgFltOut_Rev DIRECT, REVERSED (DIRECT) 0 1 0
Selects if the bo5 binary output is reverse
acting.
AlmBOcfg FAULT, FAULTPROB (FAULTPROB) 0 1 1
Selects if the alarm binary output is on just
when a fault occurs or when a fault or problem
occurs
Compressor
CmpMnOnTm 60 sec to 600 sec (180 sec) 60 600 180 Compressor Minimum On Time
60 sec to 600 sec (300 sec) 60 600 360
ClOATLckSpt 45°F to 80°F (63.5°F) 45 80 63.5
When the OAT is below this temperature and
it’s an ASHP then CompClgOATLockoutStatus
is LOCKED.
CmpHtOATLck 10°F to 212°F (30°F) 12 212 30
If the OAT is less than this setpoint, then
compressorized heating is disabled. Air source
heat pumps only.
CmpHtEWTLck 10°F to 212°F (30°F) 10 212 30
compressorized heating is disabled. Water
source heat pumps only.
RevVlvTmr 0 to 30 sec (5 sec) 0 30 5
If the reversing valve has to change then it must
be commanded this many seconds after the
compressor starts.
RandomStrtTm 0 to 60 seconds (0 seconds) 0 60 0
Compressor Start delay. Prevents simultaneous
start up of compressors.
CmpStartDly 300 sec to 360 seconds. (300 sec) 300 360 300
+ ncpRandomStart.
CmpRunTm 0.0 hrs to 300,000.0 hrs 0 300,000
This is the total compressor run time. It must
have resolution of 0.1 hours and have a range
of at least 300,000 hours.
MnPmpOnTime 0 to 120 sec (30 sec) 0 120 30
Minimum time that pump has to be on before
WSHP compressor will energize.
DefChkTmSpt 30 to 120 min 30 120 90
in ASHPs
ASHPDefTime 3 to 5 min 3 5 4
This is how long the defrost operation occurs.
This applies only to the ASHP. The WSHP uses
LwSctLnSpt 20°F to 35°F 20 35 28
The low suction line temperature alarm setpoint
is defaulted to 28°F. The alarm becomes
INACTIVE when the temperature gets to this
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