Service and repair
8-40
10070389 Rev. A
Puritan Bennett™ 700 Series Ventilator System Service Manual
Figure 8-34. Exhalation assembly cover
8.9.2 Exhalation heater and thermistor assemblies
8.9.2.1 Removing exhalation heater and thermistor assemblies
(See Figure 8-35 and Figure 8-36). Remove the exhalation heater or thermistor assembly as
follows.
1.
Remove exhalation assembly cover (Section 8.9.1).
2.
Disconnect heater or thermistor assembly harness from ventilator head harness.
3.
Remove clip surrounding top of flow sensor assembly.
4.
Remove thermistor (if applicable) by pulling thermistor bead from clip. The heater does
not require removal to do so.
5.
Remove heater (if applicable).
6.
Finish removing thermistor assembly (if applicable):
a.
Using 2.5-mm hex driver, remove screw and detach metal tab (which houses other
thermistor) at top of flow sensor assembly.
b.
Remove thermistor.
7.
Finish removing heater assembly (if applicable) by removing other heater-retaining clip;
then remove heater.
7-00100
Clip
Filter
Exhalation
assembly
cover
Summary of Contents for Puritan Bennett 700 Series
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