Lennox PRODIGY2.0 User Manual

10
Table 3. Thermostat Mode Operation
(Three Cooling Stages Parameter 111)
Number of
Compressors
No Economizer With Economizer*
Y1 Demand Y2 Demand Adds Y3 Demand Adds Y1 Demand Y2 Demand Adds Y3 Demand Adds
1 CP1 NO CHANGE NO CHANGE Free Cool CP1 CP1
2
(or two stage compressor)
CP1 CP2 NO CHANGE Free Cool CP1 CP2
3 CP1 CP2 CP3 Free Cool CP1 CP2
4 CP1 + CP2 CP3 CP4 Free Cool CP1 + CP2 CP3
CP1 = Compressor 1, CP2 = Compressor 2, CP3 = Compressor 3, CP4 = Compressor 4. *Assumes outdoor air is suitable for cooling.
Table 4. LC/LG 036U, 048U, 060U and 074U — Thermostat Mode Operation Default
(Two Cooling Stages Parameter 111)
Number of
Compressors
No Economizer With Economizer*
Y1 Demand Y2 Demand Y1 Demand Y2 Demand
1 CP1 @ 60% CP1 @ 100% Free Cool CP1 @ 60%
CP1 is a Variable Speed Compressor. *Assumes outdoor air is suitable for cooling.
Table 5. LC/LG 036U, 048U, 060U and 074U — Thermostat Mode Operation Default
(Three Cooling Stages Parameter 111)
Number of
Compressors
No Economizer With Economizer*
Y1 Demand Y2 Demand Y3 Demand Y1 Demand Y2 Demand Y3 Demand
1 CP1 @ 60% CP1 @ 100% CP1 @ 100% Free Cool CP1 @ 60% CP1 @ 100%
CP1 is a Variable Speed Compressor. *Assumes outdoor air is suitable for cooling.
Min Hz is the lowest speed at which the compressor can run.
2.1.2. Heating Stages
The M3 unit controller default thermostat operation is for two heating stages. See table 6 for gas heat units and table 7 for
electric heat units.
The M3 unit controller allows three different staging.
Go to SETTINGS > RTU OPTION > EDIT PARAMETER =112 (HEAT STAGING OPTION)
Available sections are:
Option 0. No heating operation
Option 1. Discharge Air Control with up to four stages. Discharge Air Control Heating (DACH) option automatically
cycles up to four stages of heating to maintain a discharge air temperature within specific tolerances of discharge air
control heating set point (occupied or unoccupied). See parameters 174 and 175.
Option 2. Thermostat operation (default)
 Energence 3 to 12-1/2 ton units use up to two stages in room sensor control mode.
 Specially equipped 4 to 6 ton LG units can support four stage gas heat by utilizing an electromechanical control,
external to Prodigy.
 Energence LG 13- to 25-ton units with two gas valves, each having two stages, and can support up to four stage
operation in Room Sensor mode. See table 8.

Lennox PRODIGY2.0 Specifications

General

Brand	Lennox
Model	PRODIGY2.0
Category	Controller
Language	English