Lennox PRODIGY2.0 - Page 153

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Table 65. Prodigy 2.0 Alarm and Event Codes
Selected alarms (marked with * in table result in the closure of the service relay contacts (DO1).
EVENT ACTIONDISPLAY MESSAGE
ALARM
CODE
109*
STRIKE 3 DUCT SUPPLY PRESS SENSOR
A30
Check sensor and wiring.
Prodigy controller shall "lockout" a unit operation after the Max Static Duct Pressure
Occurrences have occurred of Supply Static Pressure Sensor Error (alarm 107)
and/or High Supply Static (Duct) Pressure (alarm 108).
User shall be able to clear Supply Static Pressure lockout & alarm via User Inter
face. Supply Static Pressure lockout and alarm shall be cleared after the Prodigy
controller reset.
The number of strikes is three by default. this can be changed using parameter 43.
Optional occurrence setting is 1 to 7.
110 WAITING ON NETWORK DATA Check network or comfort sensor and wiring.
111 PROFILE ERROR Configuration profile unrecoverable. Settings may have changed.
112 - 120 RESERVED
121*
LINE FREQ DOES NOT MATCH UNIT
CONFIG
Powersource line frequency is determined by the entered model number. This alarm
is enabled by the PhaseVoltage Detection feature. The M3 unit controller does not
have an automatic clearing method, unit power cycle or reset will be required to re-
evaluate the phase sequence again.
122* 24VAC PRIMARY VOLTAGE LOW
Low output voltage on T1 transformer. alarm set when 24VAC voltage low if calcu
lated RMS voltage is below low voltage alarm threshold for more than two seconds.
System will stop unit operations (cooling, heating and ventilation). Low voltage
threshold is 18VAC.
The M3 unit controller will clear alarm 24VAC Voltage Low if calculated RMS voltage
is above Low Voltage Alarm Threshold + 1 VAC for more than two seconds. After the
low 24VAC alarm has been cleared, the M3 unit controller will ignore all service de
mands until the Error Time Off Delay has expired.
123* 24VAC PRIMARY VOLTAGE HIGH
High output voltage on T1 transformer. alarm set when 24VAC voltage high if calcu
lated RMS voltage is below low voltage alarm threshold for more than two seconds.
System will stop unit operations (cooling, heating and ventilation). Low voltage
threshold is 30VAC.
The M3 unit controller will clear alarm 24VAC Voltage high if calculated RMS voltage
is above High Voltage Alarm Threshold + 1 VAC for more than two seconds. After
the HIGH 24VAC alarm has been cleared, the M3 unit controller will ignore all ser
vice demands until the Error Time Off Delay has expired.
124* 24VAC SECONDARY VOLTAGE LOW
Low output voltage on T1 transformer. alarm set when 24VAC voltage low if calcu
lated RMS voltage is below low voltage alarm threshold for more than two seconds.
System will stop unit operations (cooling, heating and ventilation). Low voltage
threshold is 18VAC.
The M3 unit controller will clear alarm 24VAC Voltage Low if calculated RMS voltage
is above Low Voltage Alarm Threshold + 1 VAC for more than two seconds. After the
low 24VAC alarm has been cleared, the M3 unit controller will ignore all service de
mands until the Error Time Off Delay has expired.
125* 24VAC SECONDARY VOLTAGE HIGH
High output voltage on T1 transformer. alarm set when 24VAC voltage high if calcu
lated RMS voltage is below low voltage alarm threshold for more than two seconds.
System will stop unit operations (cooling, heating and ventilation). Low voltage
threshold is 30VAC.
The M3 unit controller will clear alarm 24VAC Voltage HIGH if calculated RMS
voltage is above high voltage alarm Threshold + 1 VAC for more than two seconds.
After the high 24VAC alarm has been cleared the M3 unit controller will ignore all
service demands until the Error Time Off Delay has expired.
126*
LINE PHASING DOES NOT MATCH UNIT
CONFIG
during power up or reset of unit, Mismatch on single or 3phase power, or reverse
rotation on 3phase detected. This alarm is enabled by the PhaseVoltage Detection
feature.
127 - 128 RESERVED
129* VFD SHUTDOWN
VFD fault detected. Check belt and for blower overload. Fix source of fault and reset
M3 unit controller.
130 VFD BYPASS ENGAGED VFD bypass mode. Mode is engaged. Blower may or may not be disengage.
131 RESERVED
132 VFD BYPASS NOT CONFIGURED VFD bypass mode has not been selected. Unit operates as if bypass is not installed.
133 RESERVED