12
Filling Empty cylinder with Hydrogen
The motor needle valve for the hydrogen cylinder will need some time to adjust from an empty to a
full cylinder. Follow the standard “Filling the phx42 with Hydrogen” procedure, with the following
exceptions:
• After step 6 (in the fill procedure above) instead of counting to 10, watch the gauge near the
hydrogen fill cylinder and stop the flow when the gauge is reading between 900 – 1000 psi.
Turn the handle back 180° to close valve.
• Pull on the collar of the H
2
fill adapter to release it.
• Wait 4 minutes for the motor needle valve to adjust.
• Confirm that the H
2
fill adapter is firmly seated on the H
2
fill port.
• Turn the red handle 180° to open valve. Arrow should point to the fill hose.
• Wait for 10 seconds after the needle on the gauge stops moving (at 1800 psi).
• Turn the handle back 180° to close valve.
o There will be a slight hiss from the release of pressure.
• Pull on the collar of the H
2
fill adapter to release it.
• Twist the H
2
quick-fill cover onto the H
2
fill port.
• Close bottle. There is no need to bleed pressure off the H
2
fill Adapter.
TECH TIP: 2-3 ignition attempts may be required. Pressure Stabilization messages are normal. Wait 4
minutes between each ignition attempt. If Ignition Failure continues, perform a self-check, and submit a
failure with comments to LDARtools Support Team.
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