Table of Contents
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Chapter 5
Repair
5-12
On/Off Hardware
•
The Blower button turns the blower on and off.
•
The Filter Heat button turns the filter heater on and off.
•
The 24V Power button turns all pneumatic components on and off
simultaneously without disturbing the display.
Solenoid Hardware
•
The Inhalation button toggles SOL4 between circuit pressure and
atmospheric pressure.
•
The Safety button opens and closes SOL2, which controls the source
pressure that opens or closes the safety valve.
•
The Exhalation button toggles SOL3 between circuit pressure and
atmospheric pressure.
•
The Crossover button toggles SOL1, which determines which gas
provides source pressure to SOL2. SOL1 uses air to provide source
pressure to SOL2 when energized, and uses oxygen when de-
energized.
Status Displays
The displays on the right side of the hardware screen provide real time
feedback on various flows, step positions, pressures, voltages, and
temperatures measured by the internal flow, pressure, voltage, and
temperature sensors.
•
Air Flow displays the measured flow passing through the air flow
sensor.
•
Oxygen Flow displays the measured flow passing through the oxygen
flow sensor.
•
Exhalation Flow displays the measured flow passing through the
exhalation flow sensor.
•
Air Position displays the step position of the air valve stepper motor for
a specified flow rate or a selected air valve step position.
•
Oxygen Position displays the step position of the oxygen valve stepper
motor for a specified flow rate or a selected oxygen valve step position.
•
Exhalation Position displays the step position of the exhalation valve.
•
Inhalation Pressure displays the pressure measured by the inhalation
pressure sensor.
•
Exhalation Pressure displays the pressure measured by the exhalation
pressure sensor.
•
Oxygen Supply displays whether the oxygen inlet pressure switch
detects an external oxygen source connected to the ventilator.
Esprit® Ventilator Service Manual © Respironics, Inc.
REF 580-1000-02 G
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Table of Contents
Troubleshooting
