Vyaire VELA, Service Manual

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5-14
Chapter 5: One-Year P.M. Procedure
33373-001 Version A
26. Turn Oxygen off and disconnect the Oxygen hose from the ventilator.
27. Disconnect the power cord from the ventilator.
28. Disconnect the battery molex connector from the Main Wiring Harness.
5.4.13 Replacing the left panel with power PCB and top cover assembly.
1. Lean the right panel up to the VELA, slide in the front then push in the rear. Reattach the
screws on the rear (2), front (1) and lower edge of the right side (3).
2. To install the battery tray, re-attach the large white Molex connector and make sure it lays
between the muffler elbows as you replace the battery tray onto the VELA. This will ensure that
there is enough space for the large capacitor attached to the Battery tray. Re-attach the 4
screws holding the battery tray in place. Reconnect the ribbon cable.
3. Slide the cover in place from the rear and push the top front edge home under the lip. Attach
the (4) screws on the rear of the cover.
4. Reattach the power cord and re-attach the power cord guard with the two screws.
5. Perform Ventilator OVP and performance test as per directions in Chapter 7
5.5 Two Year PM
The following will be replaced every two years:
1. Annual PM kit, P/N 11416
2. 40 psi Regulator and blender screws, P/N 33030A and 53002-56206 (Qty 3)
3. O2 Sensor, P/N 27750-001
4. Internal Battery Tray, P/N 16048
Follow the directions in this chapter for installing the Annual PM Kit, 40 psi regulator and blender
screws, O2 sensor.
To replace the internal battery tray:
1. Remove the top cover and battery tray as per directions in Chapter 3.
2. Remove the Ribbon Cable from the tray, remove the four ¼ nuts from the tray holding the ferrite
chokes (Figure 5-22).
Figure 5-22. Ribbon Cable Hex Nut Location on Battery Tray