Verify discharge gas connection has isolation valve
Discharge Gas Connection is connected to ZEVAC in a secure fashion
Discharge Gas piping / hoses have been verified to be leak-free
Discharge Gas piping has an isolation valve
Verify hose halters are in place on ZEVAC discharge gas hose.
Verify Air Lubrication Fluid has adequate level. Add fluid if necessary.
Verify Air/Water separator is empty and drain is not obstructed.
Verify Air Filter drain is not obstructed.
Verify the unit has not been damaged during shipping and handling
Open the front panel and inspect the internal assembly
Verify all connections are tight and all hose connections are secured
Verify all safety controls are in place and properly connected.
STARTUP
Pre-Startup Purge (First Startup)
In order to avoid the mixture of air and flammable gases, it is required to purge the ZEVAC® of
air before introducing other gasses. Purging can be accomplished with inert nitrogen. The
procedure for performing this purge is listed here:
Connect an inert gas such as Nitrogen to the Gas Intake piping (“Tree”)
Open Discharge Gas Vent / Dump Valve
Open Nitrogen supply to flow into the ZEVAC®
Open the Air connection to actuate the ZEVAC®
The ZEVAC® will move Nitrogen through the system and out the discharge vent
Continue purging with the ZEVAC® running for 30 seconds
Verify 0% oxygen present in the vent gas stream
Purging complete, disconnect Nitrogen
Do not allow air to re-enter the system
*The equipment can be purged with other gases in a similar fashion if nitrogen is unavailable.
Routine Startup
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