Apeks Supercritical The Duplex™ Operation Manual
32
Revision Date 8/28/2018
the manual screen and try to prime compressor until you see 15 psi of oil pressure on the oil
pressure gauges on the diaphragm compressor.
5.2.21. Pressure Test Fail Alarm – A pressure test on one of the vessels has failed. Check the manual
screen to see which vessel failed and secure all tubing or clean all sealing surfaces so that the
vessel will hold pressure.
5.2.22. Pump PSI High During Recovery Alarm – Pump outlet is too high because bottles are closed
or full.
5.2.23. Pump Motor Auxiliary Fault Alarm – Pump auxiliary not made. Check to see if motor starter
armature is engaged, check voltage at auxiliary, and for any loose wires in motor starter box.
5.2.24. Pump Motor Overload Alarm – Pump overload has been tripped. Reset overload, check that
overload is set correctly for amperage on the motor nameplate. Prime pump and check voltage
and amps. If amps are still too high check for loose wires and belt tension.
5.2.25. Separator Pressure Creep Alarm – Separator pressure has creeped up due to dry ice
sublimation. Open vent valve (Valve 10).
5.2.26. Separator Water Flow Lost Alarm – Water flow to the separator chiller loop has been lost.
Check that separator chiller is on, that there are no kinks or clogged lines and that the quick
connects are together.
5.2.27. Separator (1B/2B) Vessel PSI High Alarm – Separator pressure is above the acceptable
pressure range. Check orifice size and target pressure, adjust accordingly. If system was off,
dry ice sublimation or a leaky valve 12 could cause alarm. Vent and clean out separators, then
reassemble, close all manual valves and open bottle to see if pressure increases.
5.2.28. Separator (1B/2B) Vessel Temperature Alarm – Separator temperature outside of acceptable
range, adjust separator temperature setting.
5.2.29. Separator Ambient Temperature Alarm – The ambient temperature at the separator stand is
outside acceptable range
5.2.30. Service Separator Mode Extractor PSI High Alarm – Extractor pressure is higher than
acceptable range during service separator mode, reassemble separator and continue cycle or
turn extractor temperature setting down.
5.2.31. Valve Fault Alarm – The air valve manifold has faulted. Check the manifold for fault code and
then try unplugging the yellow cord and plugging it back in. if fault continues contact Apeks
(740-809-1160 ext. 2).
5.3. Other Symptoms
5.3.1. Vessel not pressurizing
5.3.1.1. Verify that all Vessel Isolation Valves to that vessel are open
5.3.1.2. Check operation mode and valve positioning on main screen
5.3.2. High Extractor pressure and low separator pressure
5.3.2.1. Check parameters selected against orifice selected
5.3.2.2. Check orifice for clogs
5.3.3. High Separator pressure and low extractor pressure
5.3.3.1. Verify the correct parameters are selected by referencing the recommended operating
parameters.
5.3.3.2. Verify the orifice matches the operating parameters and check for tightness
5.3.3.3. Verify there is no drop across the separator filter.
5.3.3.4. Prime the compressor (see appendix B).
5.3.3.5. Clean Check Valves (see appendix C).
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