DALUM CO2 - Page 45

CO2-Recovery Plant 45 EN/2020
blocked cooling valve,
low glycol pressure or
blocked compressor
cooling loop.
compressor cooling valve 01VA44
open with the 06VA42 open. If not
close manual glycol valves and check
the valve seat for debris and replace
plunger if needed.
Check for air bubbles in the cooling
loop, it could prevent the pump from
working.
Check if the delta pressure on Glycol
is minimum 1,5 bars.
Check if the glycol in the compressor
cooling lop is moving with the
compressor cooling pump forced ON.
Its possible to feel the pump vibrating
if running. If pump not running shut off
glycol and remove the pump-motor by
losing the collar nut on the pump.
Check if the pump is running when
removed from the housing. If still not
running and power supply is OK
replace the pump. The check if
cooling circuit is blocked by deposits
or scale.
46 Critical
Alarm
05TE40 Too
High
Temperature
If the temperature
sensor 05TT60 on
dehydrator 502
exceeds 315C for 10
seconds, the high
voltage power will be
cut off and can be
reset by pressing
ON/OFF. Could be
caused by a defect
temperature
transmitter, analogue
card in PLC or a frozen
relay for the heating
element 05TE40.
Try to tighten the terminals on the
PLC where the PT100 wires are
attached, I7 to I11 on the PLC
terminals.
Try to reset on start/stop and if the
problem occurs again contact DBE.
If history shows a sudden jump in
temperature, it’s a sensor or PLC
issue.
If a spare temperature transmitter is
on site, it’s possibly to connect it to
the terminal and check if it solves the
problem.
47 Critical
Alarm
05TE41 Too
High
Temperature
If the temperature
sensor 05TT61 on
dehydrator 501
exceeds 315C for 10
seconds, the high
voltage power will be
cut off and can be
reset by pressing
ON/OFF. Could be
Try to tighten the terminals on the
PLC where the PT100 wires are
attached, I7 to I11 on the PLC
terminals.
Try to reset on start/stop and if the
problem occurs again contact DBE.