Chapter 5
5-24 BiPAP Vision Service Manual © Respironics, Inc. 1062788
Component Removal/Installation
5.15 Pressure Relief
Valve (PRV)
Follow these steps to remove the PRV (Figure 5-24). Reverse to install.
NOTE: To minimize the possibility of inadvertent leaks, reinstall the PRV so that
it is flush with the chassis floor.
1. Remove the AFM (section 5.14).
2. Remove the two 5/16-in. nuts that attach the PRV to the bottom
enclosure.
3. Disconnect PRV cable from PC board J7.
4. Gently lift up and away from the inline flow restrictor (ILFR) valve.
Figure 5-23: Removing the PRV
Bottom
enclosure
6-32 locknut (x2)
(6 lbf-in.)
ILFR valve
PRV
PRV cable
(connects to PC J7)
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