Lennox DM User Manual

DC-DM-ROOFTOP-IOM-1801-E - 38 -
CODE DESCRIPTION CONDITION EFFECT RESET POSSIBLE CAUSES POSSIBLE REMEDIES
DS
MENU
093
Exhaust, Fan.
The fan motor control is no
longer active.
Delayed: 5s,
Enabled: 20s after fans start.
Full stop. Manually
• Electric circuit breaker cut,
• Fan motor damaged,
• Fire safety thermostat active
• Thermal motor protection
devices activated,
• Problem with wiring
connection.
• Check, Replace the fan
motor,
• Reset the thermostat,
• Check the air system,
• Check the connection.
[2313]
094
Exhaust, Inverter.
Alarm reading by bus on fans
inverter.
Delayed: 15s,
Waiting stop: 30s,
Enabled: 15s after one fan
start.
Full stop. 3/day
• Fan motor damaged,
• Thermal motor protection
devices activated.
• Check fans motor. #
099
Fire / Smoke, Detected.
The stand-alone detector
switch (DAD) has detected the
presence of smoke in the unit.
Delayed: 1s.
Full stop,
Open the fresh
air damper.
Manually • Problem with the DAD • Check the connection. [2341]
100
CLIMATIC board, Power Off
A long period without power
supply has been detected.
Time for compressor crankcase
to sufficiently warm up enough
to avoid refrigerant flooded
start.
Threshold: Outside
temperature < 10°C,
Enabled: If cut-off lasts more
than 6 hours at power on.
Stop all
compressors.
Automatic
8 hours
• Long period without power
supply
• Check the unit power-supply #
101
EVD N°1, Link Failure.
The driver 1 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
#
102
Circuit 1, Fan Condenser.
The thermal motor protection of
the condenser fan has detected
an over temperature.
Delayed: 5s,
Waiting stop: 30min,
Enabled: 5s after fan start.
Stop C1
compressors.
3/day
• Electric circuit breaker cut,
• Fan motor damaged,
• Thermal motor protection
devices activated,
• Problem with wiring
connection.
• Check, Replace the fan
motor,
• Check the connection.
[2215]
103
Circuit 1, Fan Condenser
Inverter.
Alarm reading by bus on fans
inverter.
Delayed: 15s.
Stop C1
compressors.
Automatic
• Fan motor damaged,
• Thermal motor protection
devices activated.
• Check fans motor. #

Lennox DM Specifications

General

Brand	Lennox
Model	DM
Category	Monitor
Language	English