Lennox DM User Manual

DC-DM-ROOFTOP-IOM-1801-E - 46 -
CODE DESCRIPTION CONDITION EFFECT RESET POSSIBLE CAUSES POSSIBLE REMEDIES
DS
MENU
229
Circuit 2 Compressor,
Condensing T°, Too High.
The temperature measured by
the probe is outside of the
permitted range.
Threshold: > 61°C,
Delayed: 20s,
Waiting stop: 6min,
Enabled: 3min after one
compressor or condenser fan
start/stop.
Signalling. Automatic
• Limit indoor/outdoor
temperature conditions,
• Refrigerant charge,
• Problem with the expansion
valve.
• Wait normal tempetaure
conditions,
• Check the circuit operating,
• Replace the expansion valve.
[2444]
230
Circuit 2 Compressor,
Discharge T°, Too High.
Over-temperature detected on
the 2nd circuit discharge
temperature.
Threshold: > 140°C,
Delayed: 20s,
Waiting stop: 6min,
Enabled: 5s after one
compressor start.
Stop C2
compressors.
3/day • Compressor failure • Check the compressor
[2426]
[2436]
232
Circuit 2, Elec. Expansion
Valve, Motor.
The driver of EEV signals a
failure on the system.
Delayed: 1s.
Stop C2
compressors.
Automatic • EEV failure • Check the EEV #
241
Circuit 2, High Pressure,
Sensor.
The value of the sensor
measured is incorrect.
Delayed: 15s.
Stop C2
compressors.
Automatic
• Sensor failure,
• Problem with wiring of sensor.
• Check the sensor
• Check the wiring connections.
[2444]
242
Circuit 2, Low Pressure,
Sensor.
The value of the sensor
measured is incorrect.
Delayed: 15s.
Stop C2
compressors.
Automatic
• Sensor failure,
• Problem with wiring of sensor.
• Check the sensor
• Check the wiring connections.
[2442]
243
Circuit 2, Liquid
Temperature, Probe.
The value of the sensor
measured is incorrect.
Delayed: 15s.
Stop C1
compressors.
Automatic
• Probe failure,
• Problem with wiring of probe.
• Check the probe
• Check the wiring connections.
[2445]
244
Circuit 2, Suction T°, Probe.
The value of the sensor
measured is incorrect.
Delayed: 15s.
Stop C1
compressors.
Automatic
• Probe failure,
• Problem with wiring of probe.
• Check the probe
• Check the wiring connections.
[2614]
301
EVD N°3, Link Failure.
The driver 3 of EEV is
disconnected from the Fieldbus
network.
Delayed: 30s,
Enabled: 1min after power on.
Stop C1 and/or
C2
compressors.
Automatic
• Driver failed,
• Problem with wiring of
fieldbus.
• Replace driver,
• Check the bus connections
#
310
Circuit 3, Leak Refrigerant,
Detected.
The CLIMATIC has detected a
risk of leakage of the
refrigerant circuit.
… Signalling. Manually • Refrigerant leakage • Check the circuit operating #

Lennox DM Specifications

General

Brand	Lennox
Model	DM
Category	Monitor
Language	English