DALUM CO2 - Page 42

CO2-Recovery Plant 42 EN/2020
abnormal heating or
sensor system failure.
Check if heat is constantly on, then
the PLC heating element relay is
defect.
20 Alarm
06TT61 Glycol
too hot
Inlet Glycol Temp.
warning has been on
for more than 12 hours
or a customer specified
time.
Check Glycol Cooling Valve is
working, Check history for Chiller
Force the Compressor Cooling valve
01VA44 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!
performance and correct.
31 Warning
03VA40 Water
Supply LP
Scrubber
High water level not
detected by level
switch in Scrubber for
6 minutes after stable
production in 10
minutes. No or limited
fresh water supply.
Leaking drain valve or
faulty sensor. Self-
reset if water is
detected.
Check if the drain valve is leaking
water or gas when closed. Check if
the fresh water supply is OK and the
freshwater valve is working.
After OK to the above Check if the
level sensor is working by starting the
machine for 5 minutes and check for
water level detected. If not force the
drain valve open and check for water.
Calibrate level sensor.
32 Alarm
03VA41 Fault
when Draining
High water level still
detected after opening
Scrubber drain-valve.
Defect drain valve or
level sensor.
Force the scrubber drain valve open
and check gas or water flowing out.
Service the valve.
Check the level sensor goes on and
off when filling and draining the
Scrubber. Calibrate sensor.
33 Warning
06TT61 Glycol
Too Hot
Inlet Glycol Temp.
exceeds 3C and
condenser pressure 41
bars. The machine
waits for colder glycol
with the glycol valve
open and resets at
1,5C.
Check the function of the glycol valve,
hear it click when forced. Check
history for Chiller performance and
correct.
The chiller system could be
overloaded when large fermenters
are kicking in or the glycol supply
pressure could be too low.
34 Alarm
06PT70
Condenser
Pressure Too
High
The condenser
pressure exceeds 45
bars due to high
oxygen content and/or
high glycol temp. or
very rarely the due to
liquid CO2 in the
Check for glycol temperature and flow
through the condenser. Check and
possible calibrate the oxygen sensor.
To get rid of oxygen, us automatic
depressurize function.
If the sterile filter is very cold and
possible covered by ice liquid CO2
could fill the stripper pipe and the