Chapter 3: Theory of Operation
1049766 Rev A
V60 Ventilator Service Manual
3-5
3.1.11 Solenoid Valves
Four
solenoid valves
are mounted on the manifold and controlled by the DA
PCBA. These three-way autozero solenoids include SOL1 (purge solenoid),
SOL2 and SOL4 (machine pressure autozero solenoids), and SOL3 and SOL4
(proximal pressure autozero solenoids).
Solenoid valves
SOL3, SOL4: Proximal pressure autozero solenoids. SOL4:
Also connects machine pressure to the proximal pressure
transducer during autozero.
SOL2, SOL4: Machine pressure autozero solenoids.
SOL1: Purge solenoid, uses the machine pressure
line to purge the proximal pressure line.
Manifold
Solenoid valves (x4)