SECTION 22—AUTOTUNING
69
SECTION 22—AUTOTUNING
DANGER
To prevent electrical shock, ALWAYS disconnect concentrator from electrical
outlet before servicing.
Use extreme care when making adjustments to the timing switch. DO NOT allow
screwdriver or your hands to contact the P.C. Board when unit is plugged in and/or on.
Turn unit off and unplug before adjusting timing switch. Electrical shock is possible.
To accommodate the varying tolerances when replacing components, an adjustable timer
is used to control the shift time of the pressure equalization (PE) valve. The SensO
2
board
allows for automatic (microprocessor controlled) adjustments of the PE shift times.
Autotuning
1. Turn power off (O) and unplug the unit.
2. Remove cabinet. Refer to Removing Cabinet on page 25.
3. Plug the unit in and turn the power on .
4. Wait for the main valve shift to indicate one of the following:
• If the board is new, the front panel RED indicator light will slowly blink, indicating
autotune has initiated.
• If the board is used and has performed autotuning before, press and release the
small push button switch near the pressure sensor.
• The front panel RED indicator light will slowly blink, indicating the unit is
autotuning and automatically adjusting the PE valve timing.
5. Set the output flow to maximum flow rate during autotuning.
NOTE: The GREEN (onboard) diagnostic light will flash the current value of the PE valve timing
number.
6. Place the cover back on the unit but DO NOT install the cover screws. Let the unit run
until autotuning is completed.
NOTE: When autotuning is complete, the RED front panel indicator light will change from a slow
blinking to a flashing of the final PE valve timing number.
7. Turn the unit off and then back on. The timing value is stored in memory for future
use.
NOTE: If the unit is turned off before an autotune cycle is completed, the PE valve timing will not
be stored or updated. If the board is new, autotuning MUST be successfully completed before the
unit can be placed into service.
8. After a successful autotune, run the unit for 30 minutes and verify that the oxygen
concentration output of the unit is within specification.
9. If the oxygen output concentration is not within specification, rerun the autotune
again.
10. Turn power Off (O) and unplug the unit.
11. Reinstall cabinet. Refer to Removing Cabinet on page 25.
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Содержание Platinum IRC5LXO2AW
Страница 81: ...NOTES Part No 1118396 81 Platinum Oxygen NOTES...
