Lennox Prodigy 2.0 Application Manual page 109

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