CAIRE FreeStyle Manual page 36

Connect the opposite end of the AC power cord to the wall or other appropriate electrical
outlet.
Ensure the green light on top of the AC power supply is illuminated. This indicates that the
power supply is receiving power from the outlet. If the green light is not illuminated, check for
secure connections and refer to the troubleshooting section of this manual.
Portable Oxygen Concentrator
Figure 7.3: Connecting Power Supply to AC Outlet
Figure 7.4: Green Light on AC Power Supply
Green Light
MN220-1 B 36