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Table 64. M3 Control Parameters
Control Parameter
DescriptionUnits
Control Value
No DescriptionUnitsMax.DefaultMin.Parameter Short DescriptionScreen Name
113 EN RET AIR TMP LMT
Enable Return Air Temperature
Limit
0 0 1 Option
Enables return air temperature limit option.
Return air limits may be used for limiting zone temperatures. Con
tinuous fan operation recommended.
114 COOL RET AIR LIMIT Cooling Return Air Limit 60.0 65.0 80.0 °F
Return air limit for cooling. If the return air cooling limit is ex
ceeded, the cooling demands are interrupted.
Parameter 113 must be set to 1 to enable.
115 HEAT RET AIR LIMIT Heating Return Air Limit 60.0 85.0 100.0 °F
Return air limit for heating. If the return air heating limit is ex
ceeded, the heating demands are interrupted.
Parameter 113 must be set to 1 to enable.
116 MAX PHASE MON OCC
Maximum Phase Monitoring
Occurrence
1 3 15 Occurrences
A42 input occurrences before service relay is energized.
(A55_P299_6)
117 DCV MAX DAMPER OPEN
Demand Control Ventilation
Maximum Damper Open
0 100 100 % Maximum allowed demand control ventilation damper open position.
118 DCV DAMP START OPEN
Demand Control Ventilation
Damper Start Open
0 700 2000 PPM
Damper “start open" CO
2
set point for Demand Control Ventila
tion.
Level where fresh air damper begins to open.
119 DCV DAMP FULL OPEN
Demand Control Ventilation
Maximum Damper Full Open
Setpoint
0 1200 2000 PPM
Damper “full open" CO
2
set point for Demand Control Ventilation.
Level where fresh air damper is opened to maximum.
120 DCV HI TMP OV FL CL
Demand Control Ventilation
Outdoor Air Control Hi
Temperature Override Full
Closed
-31.0 105.0 132.0 °F
High outdoor air temp. where fresh air damper is closed to minimum
position.
121 DCV HI TMP OV ST CL
Demand Control Ventilation
Outdoor Air Control Hi
Temperature Override Start
Closing
-31.0 75.0 132.0 °F
High outdoor air temperature where fresh air damper begins to
close.
122 DCV LO TMP OV FL CL
Demand Control Ventilation
Outdoor Air Control Low
Temperature Override Full
Closed
-31.0 10.0 132.0 °F
Low outdoor air temperature where fresh air damper is closed to
minimum position
123 DCV LO TMP OV ST CL
Demand Control Ventilation
Outdoor Air Control Low
Temperature Override Start
Closing
-31.0 40.0 132.0 °F Low outdoor air temp. where fresh air damper begins to close.
131 FREE CL MAX DAMPER Free Cooling Maximum Damper 0.0 100.0 100.0 % The maximum allowed fresh air damper opening for free cooling.
132 MIN DAMPER POSITION Minimum Damper Position 0.0 0.0 100.0 % Minimum fresh air damper position during occupied operation.
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