Parker Hannifin Corporation
Industrial Gas Filtration and Generation Division
Lancaster, NY • 1-800-343-4048
www.parker.com/igfg
9
Bulletin TI-A915000JA-L1555
Parker Balston Model 9150
Hydrogen Generator
General
Water Refill
Desiccant Cartridge
When performing routine maintenance, carefully follow the instructions provided in this
section to avoid injury or damage. Service should be performed by persons familiar with
the service and safety requirements of electromechanical / electrochemical devices.
With proper care and maintenance the hydrogen generator will provide years of trouble free
operation. No adjustments or calibrations need to be made to the generator. Only routine
service is needed to maintain peak operational conditions.
The primary maintenance tasks required are changing the desiccant cartridge (when the
beads turn color or clear), replacing the deionizer bags (approximately every 6 months), and
refilling the water reservoirs (weekly). See page 11 for replacement part numbers and recom-
mended service frequency.
Do not use water, aerosols, or other cleaning agents on the unit.
If necessary, the generator
can be wiped down with a clean dry cloth on an as needed basis. Use of any liquid detergent
to clean the generator could present an electrical hazard.
Do not use commercial leak detection fluids on any Lexan
®
plastic parts in the generator.
These fluids may cause cracking and crazing which leads to component failure. Use a solu-
tion of 4-5 ml of liquid dish soap in one liter of water.
Refill the water in the generator whenever the water level reaches the
Refill
level displayed on
the front panel (see
Explanation of Symbols
at the back of the manual). The water reservoirs
should last approximately 1 week when the reservoirs are filled to the
Full
level. Water must
have a minimum resistivity of 2 MegOhm/cm.
If the
Low Water
indicator (see Figure 7) illuminates, the generator will stop producing hydro-
gen to safeguard the cell from permanent damage. Add water to the generator until the Full
level is reached and press the
Start
button to generate hydrogen.
No tools are needed to change the desiccant cartridge (P/N 1647727). The cartridge should be
replaced when the color of the indicator beads changes. The blue beads turn to beige or gray
and orange beads turn clear. After all the indicating beads have turned color, the cartridge will
have approximately 2 days of life left at 90 cc/min flow and 8 hours left at 500 cc/min flow.
1
Turn the Power switch OFF and leave the Shutoff valve in the OPEN position (see Figure
8, valve is in the OPEN position) to vent the hydrogen from the unit. Ensure that 0 psig is
shown on the pressure gauge.
2
Lift the top cover and unscrew the cap covering the desiccant cartridge (see Figure 2).
Remove the cartridge from the generator.
3
Remove the new desiccant cartridge from the moisture proof bag. Add a small amount
of deionized water to wet the o-rings on the nipple end of the desiccant cartridge. Push
down firmly to seat the o-rings at the bottom of the housing (see Figure 3).
4
Replace and center the large o-ring inside the desiccant cap (see Figure 4). Tighten the
cap securely by hand. Be sure the o-ring seal remains centered and the seal is visible as
a black ring around the top and sides.
Note
: Most internal leaks are found at the desiccant housing cap o-ring seal, due to improper
sealing of the cap. Be sure to seal the cap tightly.
5
Turn the Power switch ON and perform the controlled venting purge as described in the
Startup
section, then begin using the generator.
Note
: For best results, purge the system for one hour to remove any residual oxygen and mois-
ture from the instrument and piping downstream.
Maintenance
