Theory of operation
2-60
10070389 Rev. A
Puritan Bennett™ 700 Series Ventilator System Service Manual
Figure 2-47. Speaker, piezo alarm, air flow thermistor assembly, and air intake filter switch
installed
2.3.8.3 Main fan
The main fan (Figure 2-48 and Figure 2-34) draws air into the ventilator to cool the interior
and to dissipate oxygen in the event of an oxygen leak. It runs continuously during
ventilation. The fan maintains the oxygen percentage inside the ventilator at less than 25%.
To monitor this air flow, the ventilator incorporates an air flow thermistor assembly (see
Section 2.3.8.4). A filter removes particles from the air drawn in.
Figure 2-48. Main fan with cover, filter, and guard
Speaker
7-00160
Air flow
thermistor
assembly
Air intake
filter switch
Piezo
alarm
Cover
Guard
Filter
7-00161
Main fan
Содержание Puritan Bennett 700 Series
Страница 1: ...Service Manual Puritan Bennett 700 Series Ventilator Systems TM...
Страница 18: ...xviii 10070389 Rev A Puritan Bennett 700 Series Ventilator System Service Manual This page intentionally blank...
Страница 24: ...xxiv 10070389 Rev A Puritan Bennett 700 Series Ventilator System Service Manual This page intentionally blank...
Страница 160: ...3 22 10070389 Rev A Puritan Bennett 700 Series Ventilator System Service Manual This page intentionally blank...
Страница 186: ...4 26 10070389 Rev A Puritan Bennett 700 Series Ventilator System Service Manual This page intentionally blank...
Страница 398: ...9 64 10070389 Rev A Puritan Bennett 700 Series Ventilator System Service Manual This page intentionally blank...
Страница 414: ...A 16 10070389 Rev A Puritan Bennett 700 Series Ventilator System Service Manual This page intentionally blank...
Страница 438: ...12 10070389 Rev A Puritan Bennett 700 Series Ventilator System Service Manual This page intentionally blank...
Страница 439: ......