Start-Up
4-10
Algas-SDI Operations and Maintenance Manual – P/N – 54702
NOTE
If the start-up is done under cold conditions and liquid has entered
the system, do not restart until all liquid has been removed. If this
condition exists, it is an indication that the system needs adequate
heat tracing.
7. The outlet pressure is maintained by the vapor pressure regulator.
NOTE
Do not change the output pressure from the design system
pressure without changing the safety set points to the
corresponding values
To restart the blender after a safety shutdown, determine and eliminate the
cause of failure and begin the start procedure over.
8. During initial startup of mixer into an uncharged line flow rates can be very
high. Alarms may occur during this charging phase until pressure in the line
starts to equal the pressure outlet set point. Also, during this initial charging,
nuisance tripping of excess flow valves on LPG tank may occur.
9. To reduce the flow rates during initial startup of mixer into an uncharged line,
slowly open the mixed gas outlet valve allowing time for pressure in line to
reach desired setpoint. This will help reduce nuisance alarm tripping during
initial startup.
