Lennox PRODIGY M2 User Manual

6. Reheat Operation
Page 23
PRODIGYT M2 UNIT CONTROLLER
Table 20. 3−Compressor Humiditrol Default Operation (using 2−stage Thermostat or Zone Sensor)
Demands Unit Operation
T’Stat Economizer Dehumidification Free Cooling On CP1 On CP2 On CP3 On Reheat Valve 1 On Reheat Valve 2 On
Summary
Idle.
X X X X X CP1 Reheat, CP2 Reheat (Reheat Stage 1)
X X X X X X CP1 Reheat, CP2 Reheat (Reheat Stage 1)
1st X x CP1 Cool, CP2 Cool
1st X X Free Cool
1st X X X X X X CP1 Reheat, CP2 Reheat, CP3 Cool (Reheat Stage 2)
1st X X X X X X X CP1 Reheat, CP2 Reheat, CP3 Cool (Reheat Stage 2)
2nd X X X CP1 Cool, CP2 Cool, CP3 Cool
2nd X X X X Free Cool, CP1 Cool, CP2 Cool
2nd X X X X CP1 Cool, CP2 Cool, CP3 Cool
2nd X X X X X CP1 Cool, CP2 Cool, CP3 Cool
Free cooling operation is only available on units equipped with an economizer. Default dehumidification demand = RH (A91) > 60% (RH setpoint
ECTO 4.25). Optional dehumidification demand = P299−8 energized if ECTO 4.25 is set to 100 (digital demand). Heating demand overrides reheat.
Table 21. 3−Compressor Humiditrol Default Operation (using 4−stage Thermostat DDC with Zone
Sensor)
Demands Unit Operation
T’Stat DDC, or Zone Sensor
Economizer
Dehumidification Free Cooling On
CP1 On
CP2 On CP3 On Reheat Valve 1 On Reheat Valve 2 On
Summary
Idle.
X X X X X CP1 Reheat, CP2 Reheat (Reheat Stage 1)
X X X X X X CP1 Reheat, CP2 Reheat (Reheat Stage 1)
1st X X CP1 Cool
1st X X Free Cool
1st X X X X X X CP1 Reheat, CP2 Reheat, CP3 Cool (Reheat Stage 2)
1st X X X X X X X CP1 Reheat, CP2 Reheat, CP3 Cool (Reheat Stage 2)
2nd X X X CP1 Cool, CP2 Cool
2nd X X X Free Cool, CP1 Cool
2nd X X X CP1 Cool, CP2 Cool
2nd X X X X CP1 Cool, CP2 Cool
3rd X X X CP1 Cool, CP2 Cool, CP3 Cool
3rd X X X X Free Cool, CP1 Cool, CP2 Cool
3rd X X X X CP1 Cool, CP2 Cool, CP3 Cool
3rd X X X X X CP1 Cool, CP2 Cool, CP3 Cool
4th X X X CP1 Cool, CP2 Cool, CP3 Cool
4th X X X X X Free Cool, CP1 Cool, CP2 Cool, CP3 Cool
4th X X X X CP1 Cool, CP2 Cool, CP3 Cool
4th X X X X X CP1 Cool, CP2 Cool, CP3 Cool
Free cooling operation is only available on units equipped with an economizer. Default dehumidification demand = RH (A91) > 60% (RH setpoint
ECTO 4.25). Optional dehumidification demand = P299−8 energized if ECTO 4.25 is set to 100 (digital demand). Heating demand overrides reheat.

Lennox PRODIGY M2 Specifications

General

Brand	Lennox
Model	PRODIGY M2
Category	Controller
Language	English