Start-Up Verification Test; Power Failure Alarm Test; Product Regulator Check And Setting; Adjusting The Product Regulator For Normal Operation - CAIRE Companion 5 Technical Manual

Start-up Verification Test

1. Connect the electrical cord to a power supply.
2. Turn the power switch in the "ON" position.
3. Initially, all LED lights will illuminate and the audible alarm
will beep. After a few seconds, the yellow and red LED lights
should turn off and the audible alarm will stop.
4. Verify that the green LED turns on and stays lit continuously
during operation.

Power Failure Alarm Test

1. Connect the electrical cord to a power source.
2. Turn the power switch in the "ON" position and let the unit
run for a few minutes.
3. Keeping the switch in the "ON" (I) position, disconnect the
electrical cord from its outlet power.
4. Verify that the audible alarm begins to sound continuously.
If the audible alarm does not sound, refer to the
Note: Troubleshooting section of the manual for "No
Power Failure Audible Alarm."
5. Turn the power switch in the "OFF" (O) position. The alarm
should stop.
6. Plug the electrical cord back into an electrical outlet.
7. Turn the power switch in the "ON" (I) position. The green
light should remain lit continuously.

Product Regulator Check and Setting

The product regulator is factory set at 4.6 psig (31.7 kPa) and
should not require adjustment.
To check for proper adjustment of the product regulator, take the
following steps:
1. Set the unit's I/0 power switch to the "I" position.
2. Turn the flow meter adjustment knob counter-clockwise until
it reaches maximum flow.
3. Allow the unit to run for ten minutes.
4. Install test pressure gauge to the outlet of the Companion 5
unit.
5. The outlet pressure should be 4.3-4.9 psig (29.6-33.8 kPa).
If the outlet pressure is not within this range, the product
regulator needs to be adjusted.
Adjusting the Product
Regulator for Normal Operation
1. Disconnect the humidifier bottle, if used, and the tubing
from oxygen outlet.
2. Remove the outer case.
3. Connect the electrical cord to a power source.
4. Set the unit's I/0 power switch to the "I" position, and allow
Oxygen Concentrator
unit to run at least ten minutes to build up pressure.
5. Turn the flow meter adjustment knob counter-clockwise until
it reaches maximum flow.
6. Install pressure gauge to the outlet of the Companion 5.
7. Turn the adjustment screw using a 3/32" Allen wrench until
the outlet pressure is 4.6 psig (31.7 kPa).
8. Remove the test pressure gauge and replace the outer case.
9. Perform flow rate test to ensure flow rates are still within
specifications.
4-Way Solenoid Valve
1. Press the power switch in the "OFF" position and unplug the
electrical cord
2. Remove the outer case.
3. Disconnect the solenoid's wires from the PCB.
4. Remove the 4 screws that mount the solenoid assembly to
the sieve bed using a 5/32 Allen wrench.
5. Pull outward to remove the 4-way solenoid assembly.
6. Remove clamp on silicone hose.
7. Remove silicone hose from 4-way solenoid valve.
PN 14940837 B — 33