14
Installation Product Manual - Trifecta
®
XPro Series
Purge and Pre-Charge of the Trifecta XPro Series
Cont.
• Leak check all pressurized lines.
• If you have a courtesy valve downstream of the process
•
use valve and remove a safety downstream of the process
vaporizer. Then slowly open the use valve (V-2) and
purge through the vaporizer(s).
•
“Esc” button on the PLC inside the control box.
•
down arrows for 20 seconds. This will open the vent to
bulk solenoid valves and the vent to atmosphere solenoid
valve in order to purge through the auto vent plumbing
circuits.
• Close the use valve (V-2).
• Open the liquid line on the bulk tank and let it equalize
with the Trifecta XPro Series.
• Turn the switch on the front of the control box to run.
•
lines to thaw.
• Leak check entire system at operating pressure.
• Slowly open the use valve (V-2) to pressure up the
process vaporizer and house lines.
• Leak check the house lines at operating pressure.
Check Trifecta XPro Series Cylinder Relief
Valves
the pressure in tank one and/or two will rise to approximately
450 psi (550 psig for the 600 psi Trifecta series). The relief
as it is opening at a pressure that is too low. Repeat same
procedure on tank two. Open diverter valve for each cylinder
to verify secondary set of safety devices.
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