Procedure 18 - Timing Invacare 5 And Invacare 6 Concentrators - Invacare 6LXO2 Service Manual

TIMING
PROCEDURE 18 - TIMING THE INVACARE 5 AND 6 CONCENTRATORS (FIGURE 1)
TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM
ELECTRICAL OUTLET BEFORE SERVICING.
To accommodate for varying tolerances when replacing components, an adjustable timer is used to
control the shifting of the INVACARE 5 and 6 Pressure Equalization (P.E.) Valve. Retiming of a unit
involves increasing or decreasing the switch located on the lower right side of the bottom P.C. Board.
1. Unplug unit.
2. Remove cabinet. (Refer to PROCEDURE 1 - REMOVING CABINET).
3. Plug concentrator in, and turn power on, set flow at 5 L/min. for the IRC5LX/IRC5LXO2.
4. Run unit for 20 minutes.
5. Take O2 reading.
6. If oxygen concentration is within specification, retiming is not necessary.
7. Unplug unit and reinstall cabinet.
UNITS WITH CONTROL BOARD OR LX SMT BOARD IRC5LX/5LXO2
1. If retiming is needed, perform the following:
a) Unplug unit.
b) Remove or loosen control Panel. (Refer to PROCEDURE 9 - REMOVING CONTROL PANEL).
c) Locate the timing switch on the lower right side of the bottom P.C. Board.
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 ON. Turn unit OFF and unplug
before adjusting timing switch. Electrical shock is possible.
FIGURE 1 - TIMING THE INVACARE 5 CONCENTRATOR - IRC 5LX/5LXO2
CAUTION
WARNING
Control Panel
Timing Switch
Adjustment
Screw
59
PROCEDURE 18
Control Panel
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