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The coalescing medium in the Series CRS separator may need to be cleaned periodically. This is true during the initial
start-up period. The need to clean the coalescing medium will be evidenced by a high pressure drop across the
separator or by pump cavitation problems. To clean the medium:
1. Allow the system water to reach a safe handling temperature
WARNING: System fluid under pressure and/or at high temperatures can be very hazardous. Before servicing,
reduce system pressure to zero or isolate the vessel from the system. Allow system to cool below 100°F and
above 35°F. Failure to follow this instruction may result in serious personal injury and/or property damage.
2. Open the blow down valve for a few seconds. This should dislodge accumulated dirt or sediment from the medium.
If it does not, then the coalescing medium must be removed from the Series CRS separator for cleaning. This can be
accomplished by closing the isolation valves to isolate the separator from the system. Make sure that the system water
was allowed to reach a safe handling temperature, and the separator to reach a zero pressure condition. Open the
blow down valve on the bottom of the separator to drain the unit. Make sure that all flow from the blow down valve
has stopped. If water continues to flow, the isolation valves must be repaired or replaced before proceeding.
3. For Series CRS separators with removable heads, remove the flange bolts that hold the coalescing medium housing
cover (head) in place on the bottom of the separator.
4. Clean the medium and reinstall in the Series CRS separator. Replace the cover head gasket with a new one and
reinstall the cover making sure that the flange bolts are tightened. The bolts should be torqued incrementally to 30%,
60%, and then to 100% of the appropriate value shown on the table on the next page. The bolts should be torqued in
the sequential order of the appropriate pattern shown in Figure 4.
fig. 4
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