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6.1.2
Maintenance and Service Intervals
Preventative maintenance of the pre and post-filter element, and desiccant material is required.
The controller monitors the dryers operating hours and will activate the maintenance alarms when certain values are
reached.
NOTE: The maintenance alarms (reminders) do not change the operation of the controller in any way.
6.1.3
Desiccant Replacement
CAUTION: Activated alumina desiccant dust is considered a nuisance dust. Proper precautions should be
taken prior to replacing the desiccant material in the dryer. Please refer to the Material Safety Data Sheet
(MSDS).
1. Isolate and shut down the dryer (see Isolation and Shutdown Procedure).
2. Place a suitable container at the edge of each drain port on the bottom of the Vessels that are located
on the sides, facing outward.
3. Open the drain ports on the bottom of the Vessels and catch the desiccant in the containers.
4. Refill each Vessel with the recommended type, size and quantity of desiccant. Only use manufacturer
supplied desiccant, which is high quality, high capacity desiccant designed and sized for the dryers (see
Desiccant Fill Procedure).
5. Carefully knock on the sides of the Vessel chambers while filling so that the desiccant will pack tightly.
Some settling may be required in order to fit the specified fill amount into the Vessel. Tank sizes may
be the same for multiple models, so do not be concerned if the Vessel is not entirely full.
6. Desiccant that has been contaminated with oil or other substances may require different disposal
methods and procedures than desiccant that is being replaced due to aging. Consult the appropriate
MSDS and follow all applicable laws and regulations regarding disposal.
6.1.4
Inlet and Exhaust Valve Repair
1. Isolate and shut down the dryer (see Isolation and Shutdown Procedure).
2. Make certain that there are no "pockets" of pressure contained by the various valves.
3. Open the bleed valve on the bottom of the control air filter housing.
4. Loosen the "one touch" pneumatic fitting (no tools required) that attaches the control air tubing to the
valve body. Carefully move the tubing aside and out of the way.
5. Disassemble the valve for cleaning or repair. Service kits are available for all valves (see page 30).
6. Reassemble the valve and ensure that all O-rings, gaskets and components have reassembled or
replaced accordingly.
DRYPOINT XFi 1000 manual_revA EN
Initial Alarm
Pre-filter
Every 8,000 hours
Post-filter
Desiccant material Every 24,000 hours Every 1,500 hours
Reminder
Every 800 hours
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