2
Verify discharge gas connection has isolation valve
3
Discharge Gas Connection is connected to ZEVAC in a secure fashion
4
Discharge Gas piping / hoses have been verified to be leak-free
5
Discharge Gas piping has an isolation valve
6
Verify hose halters are in place on ZEVAC discharge gas hose.
Fluids
Step Check Description
1
Verify Air Lubrication Fluid has adequate level. Add fluid if necessary.
2
Verify Air/Water separator is empty and drain is not obstructed.
3
Verify Air Filter drain is not obstructed.
Visual Inspection
Step Check Description
1
Verify the unit has not been damaged during shipping and handling
2
Open the front panel and inspect the internal assembly
3
Verify all connections are tight and all hose connections are secured
4
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:
Step Check Description
1
Connect an inert gas such as Nitrogen to the Gas Intake piping
(“Tree”)
2
Open Discharge Gas Vent / Dump Valve
3
Open Nitrogen supply to flow into the ZEVAC®
4
Open the Air connection to actuate the ZEVAC®
5
The ZEVAC® will move Nitrogen through the system and out the discharge vent
6
Continue purging with the ZEVAC® running for 30 seconds
7
Verify 0% oxygen present in the vent gas stream
8
Purging complete, disconnect Nitrogen
9
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
Step Check Description