Respironics BiPAP - Flow Valve

Chapter 8
8-12 BiPAP Focus Ventilator Service Manual © Respironics, Inc. REF 1029568 Rev B
Component Removal/Installation
8.6 Flow Valve Follow these steps to remove the flow valve (Figure 8-13). Reverse to install.
1. Remove top cover (section 8.2).
2. Remove the user interface PCB (section 8.4).
3. Remove the controller PCB (section 8.5).
Figure 8-13: Flow Valve
4. Remove the 3 screws, 3 grommets, and valve strap from the valve
assembly.
5. Disconnect the rubber elbow from the blower outlet.
CAUTION: Do not pull the rubber elbow away from the flow valve. If the rubber elbow
is separated from the flow valve, you must replace the entire assembly.
6. Disconnect the diffuser from the flow valve.
7. Remove or replace the flow valve.
Diffuser
Outlet port
Air flow
sensor
Primary alarm
Tubing connects to
controller PCB MT3
Flow valve
Blower
Silicone
connector
Screws (x3)
(6 lbf-in., 68 N cm)
Grommets (x3)
Rubber
elbow
Tubing connects to
controller PCB MT4
Valve
strap
Flow valve (includes
3 grommets)