UNITED FIRE SYSTEMS
STANDPIPE-
PAC™ MODEL SSS-101
DESIGN, INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
REVISION 2.00
P/N 10-540000-001
Page 39
8. Locate desiccant air dryer on
STANDPIPE-
PAC™
. Locate tab marked PUSH on connecting
ring holding aluminum bowl in place (tab orientation may not be immediately visible).
9. Depress tab marked PUSH and turn connecting ring to release aluminum bowl and glass liner.
10. Detach aluminum bowl from assembly.
11. Remove and discard the desiccant beads in the bowl.
12. Fill glass liner with new desiccant beads to approximately the same level. Use Qty. (1) UFS
P/N 21-100000-100.
13. Carefully align and insert desiccant bowl back into assembly until it is flush against air dryer
cap.
14. Depress tab marked PUSH, and turn connecting ring until connection is re-established.
15. Release tab and ensure that aluminum bowl is secure.
16. Move compressor disconnect switch to ON. Compressor should start and pressure gauge
should begin to indicate.
17. When pressure gauge reads approximately 18 PSIG, compressor should stop.
18. Check for leaks at air dryer connecting ring.
19. Open lockable shutoff valve on outlet of
STANDPIPE-
PAC™
.
20. Notify local personnel (and receiving office, if phone line is connected) that maintenance is
complete.
See Step 4
See Step 6
See
CAUTION
See Step 8
See Step 10
See Step 12
Figure 15
– Desiccant Air Dryer
