Air Valve Assembly - Respironics ESPRIT Service Manual

Chapter 9
Component Removal/Installation

Air Valve Assembly

9-66
5. Cut the tie wraps holding the AIR F/S cable and silicone tubes to the
air valve and inspiratory manifold.
6. Remove the screw holding the retaining clamp.
7. Remove the air flow sensor with silicone tubes attached.
NOTE: If replacing the air flow sensor, cut the tie wraps and remove the silicone
tubes from the flow sensor. When replacing tie wraps, do not capture the
inspiratory pressure tube directly below the air inlet connection to the
inspiratory module.
Air valve
Transfer tube
Follow these steps to remove the air valve assembly (Figure 9-61). Reverse
removal steps to install.
NOTE:
• The oxygen regulator assembly must be installed before reinstalling
the air valve.
• Install a replacement mesh cup before reinstalling the air valve inlet
tube: place the mesh cup over the air valve inlet port, then insert the
blower outlet hose over the mesh cup completely up to the valve body.
1. Remove the top enclosure (see "Top Enclosure" on page 9-4).
2. Remove the enclosure brace.
3. Disconnect the blower outlet tube from the air valve inlet, and remove
the mesh cup from inside the tube. Discard mesh cup.
4. Remove the air flow sensor but do not cut the tie wrap or disconnect
the AIR F/S cable from the flow sensor (see "Air Flow Sensor" on
page 9-65).
Esprit® Ventilator Service Manual © Respironics, Inc.
Tie wraps
Air flow sensor
Figure 9-77: Air Flow Sensor
Inspiratory module
Safety
valve
port
REF 580-1000-02 G