Lennox Prodigy 2.0 Application Manual page 96

Normal Mode Messages
The format of the message is mode and setpoint (see table 62).
COMP LOAD
SHEDDING
COOLING
DEHUMIDIFICATION
FREE COOLING
FRESH AIR COOLING
FRESH AIR HEATING
HEATING
CONTROLLER
LOCKOUT
LOW AMBIENT
LOCKOUT
MORNING WARMUP
OFF ON ALARM
PRE-COOL
PREINSTALL
START UP
SMOKE ALARM
TEST
BLOWER ON
BLOWER ON - OAS
NO DEMAND
NO DEMAND - OAS
COOL + MAX OPEN
ECON
COOL + MODULATE
ECON
Table 62. Possible MODE messages
Unit is running at lower power capacity
Cool demand present; unit is in mechanical cooling.
Unit is dehumidifying
Cooling demand is present, no compressor cooling.
Cool ventilation air to neutral value
Heat ventilation air to neutral value
Heat demand present; unit is heating
User has disabled controller operation.
Outdoor air is too cold to allow compressors to run.
Outdoor air damper closed
Unit is off due presence of alarm(s) that the system has determined will halt system oper­
ations. This system status could be present with no active alarms, which usually indic­
ates the alarm condition(s) are no longer present. If the system has cleared the alarm
there is usually a five minute delay before resuming system operations.
NOTE: Not all alarms will halt system operation. The first two active alarms are dis­
played on the main system status screen (see figure 32).
Compressor not allowed—free cooling. (During the first 30 minutes of the first cooling
demand following a change from unoccupied to occupied, calls for mechanical [compres­
sor] cooling are ignored if an economizer is installed and if outdoor air is suitable for free
cooling.)
Unit has not been set up for operation. Must follow installation menus
Default start up delay before servicing demands. Go to M3 user interface: SETUP > IN­
STALL
Smoke input detected
Network has unit in test mode
Indoor blower is on.
Indoor blower is on and outdoor air is suitable.
System not receiving a demand for cooling or heating.
System not receiving a demand for cooling or heating and outdoor air is suitable.
Mechanical cooling is operating with maximum free cooling.
Mechanical cooling is operating with variable free cooling.
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