Flow Valve - Respironics BiPAP Service Manual

Chapter 8
Component Removal/Installation

8.6 Flow Valve

Primary alarm
Tubing connects to
controller PCB MT3
Blower
Tubing connects to
controller PCB MT4
Outlet port
8-12
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).
Diffuser
Silicone
Air flow
connector
sensor
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.
BiPAP Focus Ventilator Service Manual © Respironics, Inc.
Valve
strap
Rubber
elbow
Flow valve
Flow valve (includes
3 grommets)
Figure 8-13: Flow Valve
Screws (x3)
(6 lbf-in., 68 N cm)
Grommets (x3)
REF 1029568 Rev B