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MN220-‐1 A 65
Portable Oxygen Concentrator
3.
Remove the tie wraps that bundle the solenoid valve wires together.
4.
Loosen and remove the center bolt from the PSA assembly using a 5/32” Allen wrench.
Figure 15.4: Center Bolt Removal
5.
Holding the sieve beds in place, gently pull upward on the product manifold to remove.
Keep tubing assembly in place.
6.
Align the new product manifold with the outlet of the sieve beds, and gently push the
manifold down into place.
7.
Reconnect the tubing assembly to the new product manifold.
8.
Place center bolt through the product manifold and tighten to 15 in-‐lbs.
SOLENOID VALVE REPLACEMENT
Turn OFF the unit, remove the battery, and disconnect the power
cord from the electrical outlet before servicing to prevent
accidental electrical shock and burn hazard.