OM 1280-2 • MICROTECH UNIT CONTROLLER 49 www.DaikinApplied.com
Parameter (LUI) Operating Range (Default) ABV Min Max Default Description
OA Damper
OADMnPos 0% to 100% OADH 0 100 20
Minimum OA Damper Position for CO
2
control
or space fan in high speed
OADMnPosMdSpd 0% to 100% OADM 0 100 25
Minimum OA Damper Position for space fan in
medium speed
OADMnPosLwSpd 0% to 100% OADL 0 100 30
Minimum OA Damper Position for space fan in
low speed
SpcCO2Lim 0 PPM to 2000 PPM CO
2
S 0 2000 1200 Space CO
2
Setpoint
EconOASpt 0°F to 70°F 0 70 9
plus this setpoint for free cooling to be available
1°F to 10°F ETD 1 10 2
EconEnthSpt 5 BTU/# to 50 BTU/# EES 5 50 29
OutdoorEnthalpy must be less than this setpoint
for freecooling to be available
0 BTU/# to 10 BTU/# EED 0 10 1
OAMxPos 0% to 100% 0 100 100 Maximum OA Damper Position
OALockEn DISABLE, ENABLE (DISABLE) 0 1 0
Enable/Disable Low OA Temperature lockout for
the OA Damper
OALockSpt 25°F to 45°F OALS 25 45 36
Low OA Temperature lockout setpoint for the
OA Damper
OATSpt -40°F to 80°F ETS -40 80 68 Economizer OA Temp Setpoint
OADCloseDly 0 sec to 60 sec 0 60 30
delay
OAMnPosExIlck 0% to 100% (100%) EOAD 0 100 100
Minimum OA Damper position when exhaust
interlock is active
TrendRate
NONE, OCC_CHANGE, 1_MINUTE, 10_MINUTES,
0 5 0
recorded onto the SD card.
CompType NONE, COOL, ASHP, WSHP (ASHP) 0 3 2
“NONE: Heat pump not installed.
COOL: Cooling only (ASHP)
ASHP: Air Source Heat Pump, cooling and
heating
WSHP: Water Source Heat Pump, cooling and
heating”
ValveType
NONE, 2POS_HEAT, 2POS_COOL, 2POS_BOTH,
MOD_HEAT, MOD_COOL, MOD_BOTH, (NONE)
0 6 0
“NONE: valve not installed.
2POS_HEAT: 2 position valve, heat only.
2POS_COOL: 2 position valve, cool only.
2POS_BOTH: 2 position valve, heat & cool.
MOD_HEAT: modulated valve, heat only.
MOD_COOL: modulated valve, cool only.
MOD_BOTH: modulated valve, heat & cool.”
WtrPipes NONE, 2_PIPE, 4_PIPE (NONE) 0 2 0
A 2 pipe system combines hot and cold water
into 2 pipes. A 4 pipe system has separate
pipes for each.
FBDmprEn DISABLE, ENABLE (DISABLE) 0 1 0
Enables the Face and Bypass functionality. Set
to ENABLE if installed.
ElHtStgs 0, 1 ,2, or 3 (3) 0 3 3
available. UV has either 0 to 3.
SpltSysSel NON_SPLIT, SPLIT (NON_SPLIT) 0 1 0
FanRstSel SINGLE_DAT, CO
2
, AI_INPUT (SINGLE_DAT) 0 2 0
indoor fan.
CO
2
: controlled by a network or hardwired CO
2
sensor (aiCO
2
).
AI_INPUT: the hardwired reset input (aiCO
2
) to
control the indoor fan.
SINGLE_DAT: Single zone DAT controls the
indoor fan.”
InFanSel
3_FIXED, ECM_MODBUS, PWM, PWM_3FIXED
(3_FIXED)
0 3 0
3_FIXED: 3 Fixed speeds using discrete
out, ECM_MODBUS :ECM using MODBUS
communications, PWM: PWM output.
SpcTmpSens NOT_INSTALLED, INSTALLED (INSTALLED) 0 1 1
CondOFlwSn NOT_INSTALLED, INSTALLED (INSTALLED) 0 1 1
OATSens NOT_INSTALLED, INSTALLED (INSTALLED) 0 1 1
LWTSens NOT_INSTALLED, INSTALLED (INSTALLED) 0 1 1
InHumSens NOT_INSTALLED, INSTALLED (INSTALLED) 0 1 1
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