Chapter 9
Component Removal/Installation
REF 580-1000-02 G
Esprit® Ventilator Service Manual © Respironics, Inc.
9-53
1. Inspect the two o-rings on the exhalation output manifold and replace
if cracked or deformed. Lightly lubricate the o-rings with Krytox
GPL226 lubricant.
NOTE:
The CV4 check valve should remain inside the exhalation valve when the
outlet manifold is
removed. If it falls out, reinstall into the
exhalation valve assembly (Figure 9-66).
2. Gently push the exhalation flow sensor through the ventilator output
hole vent port. The flow arrow on the sensor must point toward the
ventilator outlet hole vent port.
3. Use the screw to fasten the exhalation valve outlet port to the
exhalation valve.
4. Use the M5x50 screw to fasten the output manifold to the bottom
enclosure.
5. Insert the flow sensor completely into the exhalation valve (use a slight
rotating motion) and fasten with a tie wrap. To avoid damaging the
flow sensor, hand-tighten only (do not tighten the tie wrap with a tool).
6. Connect cable EXH F/S to the flow sensor and fasten with a tie wrap.
To avoid damaging the flow sensor, hand-tighten only (do not tighten
the tie wrap with a tool).
7. Install enclosure brace.
8. Install top enclosure (see “Top Enclosure” on page 9-4).
Exhalation Valve
Assembly
Follow these steps to remove the exhalation valve assembly (Figure 9-64).
1. Remove the top enclosure (see “Top Enclosure” on page 9-4).
2. Remove the enclosure brace.
3. Remove the exhalation flow sensor (see “Exhalation Flow Sensor” on
4. Disconnect the white and black connectors on the exhalation valve
from the MTR EV cable.
5. Disconnect the exhalation pressure tube to the inspiratory manifold.
6. Remove the four 10-mm screws that hold the exhalation valve to the
heater outlet port. Move the green ground wires out of the way, then
