126
Table 63. M3 Control Parameters
Control Parameter
DescriptionUnits
Control Value
No DescriptionUnitsMax.DefaultMin.
Parameter Short
Description
Screen Name
154 OCC BLOWER MODE Occupied Blower Mode AUTO-CYCLES Option
Blower control option for room
sensor applications during oc
cupied periods.
Auto Cycle: Blower cycles
with demand
On-Continuous 1: blower is
on with either the occupancy
sensor or occupancy sched
ule indicates occupied.
On-Continuous 2: Blower is
on only when both the occu
pancy sensor and occu
pancy scheduler indicates
occupied.
On-Continuous 3: lower is
on only when both the occu
pancy sensor and occu
pancy scheduler indicates
occupied. in addition, blower
will be on a minimum of 25%
of the time when occupancy
scheduler indicates occu
pied by the occupancy
sensor indicates not occu
pied. The 25% minimum is
achieved by turning blower
on for 30 minutes and off for
90 minutes.
155
FREECOOL LOCKOUT
SP
Free Cooling Lockout
Set Point
30.0 30.0 60.0 °F
Locks out free cooling when
outdoor temperature is be
low the set value.
Setting value to 29°F dis
ables free cooling lockout.
156 FRESH AIR HEAT SP
Refer to section 22.1.3.3. on page 85 to change the fresh air heat (FAH) set point. Modify the set point only
using the method described in the reference section.
157
FAH STAGE
DEADBAND
Fresh Air Heating Stage
Deadband
29.0 10.0 15.0 °F
Fresh Air Heating stage dead-
band.
158 FAH MIN CYCLE TIME
Fresh Air Heating Minim
um Cycle Time
120 480 1800 Seconds
Fresh Air heating minimum
cycle time.
159
FREE COOL SUPPLY
SP
Free Cooling Supply Set
Point
45.0 55.0 65.0 °F
Economizer modulates
dampers to maintain supply air
temperature (RT6) at this set
point during free cooling. DACC
reset applies. See parameter
207 - parameter 201
160
ECON FREECL TEMP
SP
Economizer Free
Cooling Temperature Set
Point
40.0 75.0 75.0 °F
Outdoor Air Temperature is less
than parameter Set Point
between 41-75°F, or when Out
door Air temperature is less
than Return Air Temperature
between 0-40°F.
161
ECON FRCL TMP
OFFSET
Economizer Free
Cooling Temperature
Offset
00.0 10.0 40.0 °F
Economizer Free Cooling Tem
perature Offset
162
ECON FREECL ENTH
SP
Economizer Free
Cooling Enthalpy Set
Point
10.0 12.0 19.0 mA
Economizer Free Cooling En
thalpy Set Point
163
ECN FRCL ENTH
OFFST
Economizer Free
Cooling Enthalpy Offset
1.0 1.0 5.0 mA
Economizer Free Cooling En
thalpy Offset
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