Bulletin TI-GCGS-E
Installation, Operation and Maintenance Manual
Technical Information
GC Gas Stations GC-4000, FID-4000
1-800-343-4048
16
Maintenance
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.
The primary maintenance tasks required by the Parker Balston GC Gas Station are: changing
the deionizer resin cartridge, changing the compressed air filter cartridge (annually),
changing the zero air filter (annually), and replacing the catalyst module (3 years), replacing
the water pump (3 years). Each of these components are readily accessible by removing the
side panel of the generator. A summary of the replacement part numbers and recommended
Service frequency is shown at the end of the Maintenance section. See Figure 7 and 8 for the
locations of the maintainable components.
Additional coalescing compressed air prefilter cartridges and final filter cartridges for
the Parker Balston GC Gas Stations may be ordered through your local representative.
For convenience, the replacement filter cartridge, final filter, DI resin cartridge have been
assembled into a maintenance kit. With proper care and maintenance, the GC Gas Station 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.
Before Servicing the Parker Balston GC Gas Station, isolate the unit from the compressed
air source and electrical supplies. Decrease hydrogen output pressure to zero. Turn
power switch, at the rear of the unit OFF and unplug.
Warning: Unit must cool down for 2 hours prior to any zero air catalyst or purifier service.
The compressed air filter is located on the outside rear panel of the generator. Isolate the
generator from the compressed air supply and let outlet pressure drop to zero. The filter
cartridge inside the housing should be changed on an annual basis to maintain efficient
operation of the system. Remove the filter cartridge housed in this filter assembly by
unscrewing the filter bowl from the filter head. Insert the new filter cartridge (P/N 050-05-BX)
and re-assemble the filter housing in reverse order.
The zero air filter is located on the outside rear panel of the generator. Isolate the generator
from the compressed air supply and let outlet pressure drop to zero. The GS050-05-95 filter is
inside the housing and should be changed on an annual basis to maintain efficient operation of
the system. Remove the filter cartridge housed in this filter assembly by unscrewing the filter
bowl from the fil ter head. Insert the new filter cartridge (P/N GS050-05-95) and re-assemble
the filter housing in reverse order.
General
Compressed Air Filter
Cartridge Replacement
Zero Air Filter Cartridge
Replacement
Switch power OFF to unit and unplug generator from power. Allow the compressed air
to continue to flow through the unit to improve heat dissipation during cooling. Allow the
generator to cool for at least 2 hours.
Close the (customer installed) inlet air valve.
Remove 6 screws from the right side cover. See figure 8.
Remove Base Access cover from beneath the zero module- 2 screws. This allows the zero air
module to be lowered away from the hydrogen purifier
Disconnect Catalyst Module connector located on rear, right side of the unit (see Figure 8).
Make note of its orientation for replacement of the module.
Disconnect inlet and outlet air fittings, as shown in figure 8, using two 7/16” wrenches. One
wrench holds the fitting, while the other loosens the compression nut closest to the zero air
module.
Zero Air Catalyst Module
Replacement
