AirSep MN179-1 B - Manual (Page 37)

MN179-1 _ 02/14 AirSep Corp. - FreeStyle 5 Service Manual Rev B
5.7 Solenoid Valve Replacement
1. Remove back cover panel per Section 5.2.2.
2. Determine which valves need to be replaced.
3. Remove the tie-wraps that bundle the value wires.
4. Carefully disconnect the Molex connector from the circuit board by pulling on the
Molex connector, not the valve wire.
5. Using a small Phillips screwdriver, remove the two screws fastening the valve.
6. Remove the valve.
7.
Verify two o-ring seals are installed on the new valve.
8. Fasten new valve using the two screws provided.
9. Re-bundle wires and tie-wrap.
10. Start FreeStyle 5 unit and leak test around the area where the
o-rings are located on the valve.
It may not be necessary to completely remove the PSA system assembly to replace the
solenoid valve. The Feed B/Waste B OCD valve will require the PSA system to be partially
removed.