DALUM CO2 - Page 43

CO2-Recovery Plant 43 EN/2020
stripper and
condenser.
level sensors 06LT60 and 61 needs
calibration.
36 Alarm
06LT60 or
06LT61 Fault
Calibration
When the upper
sensor 06LT60 is high
the lower sensor
06LT61 must also be
high. One or both
sensors out of
calibration but most
often caused by a
sudden pressure drop.
Check for PRV valves venting on the
compressor cooling loops or
condenser. Check if the CO2 drain
valve 06VA40 on the tank holds
condenser pressure or if the pressure
drops to tank pressure when
transferring CO2. If above OK
calibrate the level sensors or replace
sensor.
38 Alarm
06VA40
System
Leakage
The CO2 level sensor
06LT60 and 61 has not
been high for 30
minutes. Can be
caused by any leakage
from compressor to
storage tank valve.
Check the condenser pressure, if it’s
about tank pressure the issue is most
probably Tank Valve 06VA40 not
closing (due to debris in the valve
seat). Check if any of the PRV are
blowing in RUN. Check if any of the
condensate drain valves are leaking.
Check if one of the Dehydrator drain
valves is leaking in RUN. Check
pressure indicators on condensate
separators in RUN and follow the
trouble shooting guide.
41 Alarm
01GOS60 No
Signal
Proximity sensor
01GOS60 on the crank
house has not
registered compressor
piston movement for 5
sec. in RUN.
Check for mechanical blockage by
carefully running the compressor in
Force mode. If any blockage call
DALUM. If no blockage checks for
blinking sensor signal when rotating
in Force. Adjust sensor or replace if
needed.
42 Alarm
06LT61 CO2
Tank
Connection
Blocked
Both level sensors
06LT60 and 61 for
liquid CO2 stay high
for 20 sec. after the
CO2 Tank Valve
opens. The Tank Valve
or tank transfer line is
blocked. The sensors
could need calibration.
Check if the manual tank valve is
open.
Force the Tank Valve 06VA40 ON
and OFF and listen if it Clicks and if
the red LED goes on/off. If not, the
solenoid is defect or signal is missing.
NB 240 Volts!
IF OK check for debris or ice in the
valve by firstly closing the manual
tank valve and depressurise
automatically.
If needed replace solenoid, valve
plunger, or the electric plug.