Aircel ABP Series, Installation & Operation Manual

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Blower Purge Desiccant Air Dryer | ABP Series
39
WEEKLY INSPECTIONS, CONT.
3. With the Shop Vac secondary suction hose immersed in
the desiccant drum or sack, turn on the Shop Vac and the
desiccant will be drawn into the second vessel.
4. Fill vessel to the start of the knuckle in the upper head
of the vessel. The Shop Vac must be turned off and the
flange on the filling port must be removed occasionally to
determine the level of the desiccant in the vessel. A small
rake with a long handle can be used to level the desiccant
at these times.
5. When the vessel is filled with desiccant to the proper
level, remove the desiccant secondary suction hose and
reducing flange and reinstall the original flange with its
relief valve.
6. Turn the valve stem with a wrench by hand to close
the Regeneration Air Outlet valve on the second vessel.
Reinstall the Valve Position indicator.
7. Store the unused desiccant in a dry area for future use.
Desiccant Unloading
Prior to performing service or maintenance work on the
system, disconnect power supply, properly lock out (tag out)
electrical power sources and depressurize the system to avoid
personal injury and/ or property damage.
Personnel must stand clear as the flange on the drain port is
loosened and slid over. Personal injury can result from the
desiccant discharge from the drain port.
1. Turn electrical power OFF and lock-out controller.
Depressurize the compressed air dryer.
2. Place a bucket or a bin beneath the desiccant drain port
located on the lower section of the desiccant tower.
3. Loosen the bolts on the blind flange covering the
desiccant drain port.
4. Remove all of the bolts except for the upper bolt.
5. Slide the blind flange over about half way and monitor the
desiccant filling of the bucket or bin.
6. When the bucket or bin is nearly full, slide the blind flange
over the drain port to cease draining the desiccant.
7. Remove the filled bucket or bin and empty the spent
desiccant in a waste barrel for proper disposal.
8. Replace the bucket or bin under the drain port and repeat
the draining process until all of the desiccant is removed
from the tower.
9. Replace the blind flange over the drain port and replace
the bolts to secure the flange.
10. Repeat the unloading process on the second tower.
Filter Element Change
Reference the Filter Manual provided with the dryer.
Condensate Drain Maintenance
Reference the Condensate Drain manual provided with the
dryer.
Butterfly Valve
Reference the Butterfly Valve manual provided with the dryer.