Bulletin TI-FID1000J
Installation, Operation and Maintenance Manual
Technical Information
FID1000 and 2500 Gas Stations
1-800-343-4048
18
Figure 15 - View Toward Rear of Unit, Model FID-2500
Figure 16 - Thermocouple wire
Figure 17 - Rear View (FID-2500 shown, FID-1000 similar)
Figure 18 - View Toward Rear of Unit, Model FID-1000
No tools are needed to change the Desiccant cartridge (P/N 1647727). The cartridge should be
replaced when the color of the indicator beads turns color. The orange beads turn clear. Once all
the indicating beads have turned clear, the cartridge will have approximately 2 days of life left at
90cc/min flow.
Do not attempt to remove desiccant cap until generator pressure reads 0 psig.
1
Turn the Power switch to OFF and leave the user installed shutoff in the open position in
order to vent the Hydrogen from the unit. Unit must be depressurized before removing des-
iccant cap (see Figure 4).
2
Lift the top cover lid and unscrew the cap covering the desiccant cartridge. Remove the
cartridge from the unit.
3
Remove the replacement 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 Figures 5,6, and 7).
4
Replace and center the large o-ring inside the desiccant cap. 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.
Desiccant Change
