Replacing P. C. Board - Invacare Perfecto2 IRC5PO2AW Service Manual

Invacare® Perfecto₂™ Oxygen Concentrator
10. Note the orientation of the installed rubber grommets. There are two recessed areas on the rubber grommet. The larger recessed area of
the grommet is installed in the fan. The smaller recessed area is installed in the sound box.
11. Inspect rubber grommets for damage. If damage is found, do not use and replace with new rubber grommets.
12. Install rubber grommets into new cooling fan with larger recessed area installed in the fan.
CAUTION!
Risk of Damage
– Fan MUST be oriented properly so air from the fan blows DOWN onto the compressor (see air flow arrow on back of fan
and make sure the arrow is pointing down).
13. Connect spade connectors to fan terminals on side of cooling fan.
14. Orient cooling fan onto soundbox.
15. Pull rubber grommets down into the sound box until rubber grommet is seated.
16. Move intake resonator back into position.
17. Secure the intake resonator to the soundbox with the three mounting screws.
Two screws install in the top and one screw installs on the back near the bottom of the intake resonator.
18. If necessary, reconnect the intake hose on the compressor assembly.
19. Reinstall control panel. Refer to 6.10 Removing and/or Replacing Control Panel, page 29.
20. Reinstall compressor inlet HEPA filter. Refer to 5.4 Replacing the Compressor Inlet HEPA Filter, page 13 and reverse all STEPS.
21. Run unit in and check for leaks. Refer to 8.1 Leak Test, page 41.
22. If no leaks detected, turn power Off (O) and unplug the unit.
23. Reinstall cabinet. Refer to 6.1 Removing Cabinet, page 17 and reverse all steps.

6.12 Replacing P. C. Board

DANGER!
Risk of Death, Injury, or Damage
To prevent electrical shock
– ALWAYS disconnect concentrator from electrical outlet before servicing.
CAUTION!
Risk of Damage
Follow these pre-cautions to prevent damage to the P. C. boards:
– Before handling any P. C. boards, you need to be properly grounded to prevent static damage to the components of the board. A
Static Cuff MUST be worn and properly grounded using an alligator clip. Electrical conduit or a water pipe is normally sufficient
when a known good ground is not available. Care should be taken to ensure that the alligator clip contacts with bare metal surface.
– When removing quick disconnects terminals, DO NOT pull on wire itself as damage to the connection may occur. Hold down the
P. C. board with one hand and use an upward force with a slight rocking motion to remove the terminals.
– Before installing any P. C. boards, ensure that all insulators are in place.
1. Turn power Off (O) and unplug the unit.
2. Remove cabinet. Refer to 6.1 Removing Cabinet, page 17.
3. Remove control panel A. Refer to 6.10 Removing and/or Replacing Control Panel, page 29.
4. Remove the two mounting screws F from the P. C. board.
5. Position new P. C. board on the control panel..
32 1154245-F-02