Perma Pure Indi-GASS - Manual (Page 12)

GASS Module User Manual
12 Bulletin #217
5 Maintenance
5.1 Filter
The system is fitted with a coalescing filter element which should be checked regularly to
ensure that element is in good condition. If element appears to be dirty or begins to cause
flow restriction in system, it should be replaced.
Filter Element Replacement:
1. For ease of filter replacement, GASS Module should remain mounted.
2. Stop sample flow.
3. Disconnect sample inlet line from top of module (see Figure 5).
4. Hold module cap with one hand and pull ring on cap with other hand.
5. While pulling ring out, rock cap and pull upward to release o-ring seal in filter housing.
6. Remove filter element from inside housing.
7. Position new element on filter/module cap by centering element on cap assembly.
8. Apply thin layer of silicone-based lubricant on o-ring of filter cap.
9. Carefully insert filter element (while on cap assembly) back inside filter housing.
10. Reattach module cap.
11. Ensure o-ring on filter cap is properly seated to prevent sample gas from leaking.
12. Reconnect sample line to inlet of GASS Module.
5.2 Dryer
Dryer element replacement:
Tools Needed:
- Allen wrench
- Snap ring pliers
- Pair of lightweight gloves
1. Follow Steps 1-6 for filter element replacement.
2. Disconnect all wiring.
3. Remove assembly out of mounting clamps.
4. Remove Eductor and Drain (if optioned).
5. Remove Dryer Assembly from housing.
6. Follow PD dryer element replacement in Appendix B.