Covidien Newport e360, Service Manual

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Description of Functional Subsystems
Service Manual A-11
A.6.1
Inhalation System
The inhalation system supplies gas according to the user-selected breath delivery settings.
Figure A-6. Newport™ e360 Ventilator Inhalation System
Supply gas enters the inlet filters (one for oxygen and one for air) at a pressure of 30 to 90 pounds
per square inch gauge (psig). Each inlet filter traps particles as small as 40 microns and includes a
water trap to collect any water from the supply gas.
The filtered supply gas then enters a regulator that regulates pressure from 30 to 90 psig down to
15 psi. Transducers monitor pressure at the regulators, and a pressure drop at either regulator
generates a low inlet pressure alarm.
1 Air inlet 9 Inhalation block
2 Crossover solenoid 10 Safety regulator
3 PSOL valve air 11 Safety solenoid
4 Air regulated pressure 12 Pressure oxygen regulated
5 Exhalation regulator 13 Inlet block oxygen
6 Air 14 Oxygen inlet
7 Machine pressure 1
sensor 15 Inlet block air
8 Rezero valve machine 1 16 Disk filters