What number must appear on the AVOX O2 W/A window for O2 to flow?

What number must appear on the AVOX O2 W/A window for O2 to flow?

• A. 4
• B. 2
• C. 1
• D. 3

Answer: (A)

The O2 flow is controlled by the window reading, and flow only occurs when the display shows the highest setting. The maximum number represents the valve fully open and the pathway fully enabled for oxygen to pass. Lower numbers indicate progressively tighter shutoff, so no O2 would flow at those settings. So the required reading is the highest value on the window. If flow still doesn’t occur at that setting, check the supply and connections to rule out a problem upstream.

The O2 flow is controlled by the window reading, and flow only occurs when the display shows the highest setting. The maximum number represents the valve fully open and the pathway fully enabled for oxygen to pass. Lower numbers indicate progressively tighter shutoff, so no O2 would flow at those settings. So the required reading is the highest value on the window. If flow still doesn’t occur at that setting, check the supply and connections to rule out a problem upstream.