Invacare IRC5PO2 用户手册
SECTION 6—PREVENTIVE MAINTENANCE
25
Replacing the Outlet HEPA Filter
Check the Outlet HEPA Filter
NOTE: The outlet HEPA filter can be checked by performing the following procedure.
1. Turn the concentrator on and adjust the flowmeter to the maximum flow of the unit.
2. Observe the flowmeterʹs flow indicator while connecting a fifty foot cannula tube to
the outlet barb of the concentrator (not shown).
3. If the flow indicator fluctuates, the outlet HEPA filter may need replacement. Refer to
Replace the Outlet HEPA Filter
NOTE: For this procedure, refer to FIGURE 6.2.
NOTE: Perform this procedure as needed depending on the outlet HEPA filter check results.
1. Unplug the unit.
2. Remove the cabinet. Refer to Removing Cabinet on page 23
3. For easier access to the outlet hepa filter, remove the compressor inlet hepa filter by
grasping the compressor inlet filter, pull outward and up until filter is dislodged from
rubber base (FIGURE 6.3).
rubber base (FIGURE 6.3).
4. With a flat head screwdriver, remove the tubing from both sides of the existing outlet
HEPA filter by prying the tubing away from the outlet HEPA filter.
5. Discard existing outlet HEPA filter.
6. Connect tubing to both sides of the new outlet HEPA filter as shown below.
7. Install cabinet. Refer to Removing Cabinet on page 23.
FIGURE 6.2 Replace the Outlet HEPA Filter
Tubing
Outlet HEPA Filter
Tubing