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Theory of operation
2-42
10070389 Rev. A
Puritan Bennett™ 700 Series Ventilator System Service Manual
2.3.1.1.2 Line filter
.
The line filter includes an IEC-320 plug. The line filter reduces line noise to and from the
ventilator.
2.3.1.1.3 Circuit breaker
.
The two-pole circuit breaker opens when the line current draw exceeds 4 A.
2.3.1.1.4 Power switch
.
The power switch, a single-throw, triple-pole toggle type, controls power to the ventilator. It
is rated for 5 A, 250 V AC. The switch breaks both sides of the line. The third pole is used to
disconnect the battery ground for purposes of storage or service. All power, including battery
power, is removed when this switch is off. (Battery charging takes place when the power
switch is on either in the standby mode or during ventilation when AC is present.)
2.3.1.1.5 Potential equalization connector.
This connector provides a means of connection between the equipment and the potential
equalization busbar of the electrical installation.
Figure 2-28. Power input components
Circuit breaker
7-00147
Power switch
7-00148
Line filter
7-00149
Summary of Contents for Puritan Bennett 700 Series
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