Replacing Sieve Beds (Irc5Po2Vaw) - Invacare Perfecto2 IRC5PO2AW Service Manual

6.5.2 Replacing Sieve Beds (IRC5PO2VAW)

DANGER!
Risk of Death, Injury, or Damage
To prevent electrical shock
– ALWAYS disconnect concentrator from electrical outlet before servicing.
ALWAYS replace sieve beds in pairs to ensure that both beds are in optimum condition.
There are two configurations of the PE valve assembly, a circular shape PE valve assembly (Item B) and a rectangular shape PE valve
assembly (Item B). Only the circular shape PE valve assembly is shown in the unit.
Depending on date of manufacture, the circular shape PE valve assembly will either be located in the middle of the two sieve beds
or shifted closer to the left sieve bed as shown.
The rectangular shape of the PE valve assembly will always be located closer to the left sieve bed.
1. Turn power Off (O) and unplug the unit.
2. Remove cabinet. Refer to 6.1 Removing Cabinet, page 17.
3. Remove compressor inlet HEPA filter. Refer to 5.3 Replacing the Outlet HEPA Filter, page 13.
Remove tie wraps A and disconnect PE valve assembly B and check valve assembly C from top of sieve beds D.
4.
5. Remove the five large tie wraps E.
6. Remove sieve bed top adaptors, tilt sieve beds back and lift up. Rest sieve beds on sieve bed bottom adaptors.
7. Using a hose clamp tool, remove the clamp F and reinforced tubing G from bottom of both sieve beds and remove sieve beds.
8. Remove plastic caps from the top and bottom fittings of the new sieve beds.
9. Install new sieve beds reversing STEPS 3- 8.
10. Run unit and inspect for leaks. Refer to 8.1 Leak Test, page 41.
11. If no leaks detected, turn power Off (O) and unplug the unit.
12. Reinstall cabinet. Refer to 6.1 Removing Cabinet, page 17 and reverse all steps.
1154245-F-02
B
C
A
E
D
G
Service
F
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