Bulletin TI-A915000JA-L1555
Parker Balston Model 9150
Hydrogen Generator
Parker Hannifin Corporation
Industrial Gas Filtration and Generation Division
Lancaster, NY • 1-800-343-4048
www.parker.com/igfg
6
Shutdown
Storage
To maintain the highest gas purity, the hydrogen generator should be run continuously.
Monitor the hydrogen consumption of the downstream equipment to ensure flow is within the
capacity of the generator (see the
Systems Specification
section for rated flows). Both the
Power
Indicator light and the
Hydrogen Flow
Indicator light should be illuminated (see
Explanation of
Symbols
at the back of the manual).
The water level should be monitored regularly and refilled as necessary. The reservoirs hold
enough water for at least a week of continuous operation. Water can be added by removing the
cap of the water reservoir (do not pull the deionizer bag out) and adding enough water to reach
the Full mark on the front view port. Replace the cap making sure the deionizer bag does not
block any of the ports.
To maintain the integrity of the hydrogen cell, follow the guidelines listed below:
•
Keep a supply of deionized water in the reservoir above the Refill line at all times.
•
Minimize the “dead volume” in the piping between the generator and the downstream equip-
ment.
•
Never expose the unit to temperatures below freezing.
•
Never abruptly open the
Shutoff Valve
to large volumes. The large hydrogen demand can
trigger the Mass Leak safety feature and possibly damage the cell.
If the built-in diagnostics trigger a fault LED to illuminate, consult the
Troubleshooting
section of
this manual for further instructions. The generator is designed to be run continuously 24 hours, 7
days per week.
If the unit is to be idle for more than 24 hours, the generator should be turned off.
To store the unit:
1
Turn the
Pressure Adjust
knob to zero (see Figure 8). Wait until the outlet pressure gauge
reads zero.
2
Cap the Hydrogen Outlet on the back of the generator or leave it connected to the down-
stream equipment.
3
Fill the tanks at least half full with deionized water. Make sure that the cell has a least 2”
(5 cm) of water showing in the cell assembly tube. This can be viewed from the hole in the
back of the generator.
4
Remove the desiccant cartridge and store it in a moisture proof container.
Operation
Controlled Venting
After replacing any parts downstream from the generator, or upon initial startup, the system will
need to be purged in order to achieve the final purity. To avoid contaminating the downstream
equipment, the user should install a three way valve in-line, nearest to the equipment, and install
a variable restrictor (such as a needle valve) on the outlet port of the generator. Follow the sim-
ple procedure below:
1
Close the
Shutoff Valve
(see Figure 7, shown in the Open position).
2
Set the
Pressure Adjust
knob to the desired pressure (see Figure 7).
3
Press
Start
and wait until the internal pressure reaches the desired pressure (approximately
15 minutes).
4
Set the output flow rate to 50 cc/min by using the downstream equipment or if a three-way
valve was installed then switch the flow to the outlet (or purge port) and set the flow rate
using a needle valve.
Use the downstream equipment for flow control only if impure hy-
drogen will not ruin the equipment.
5
Allow the system to vent in this manner for 30 minutes. The generator and lines should now
be purged of air and ready for use.
