Replacing Regulator; Adjusting Regulator - Invacare Perfecto2 IRC5PO2AW Service Manual

8. Reinstall compressor inlet HEPA filter. Refer to 5.4 Replacing the Compressor Inlet HEPA Filter, page 13.
9. Run units and check for leaks. Refer to 8.1 Leak Test, page 41.
10. If no leaks detected, turn power Off (O) and unplug the unit.
11. Reinstall cabinet. Refer to 6.1 Removing Cabinet, page 17 and reverse all steps.

6.7 Replacing Regulator

DANGER!
Risk of Death, Injury, or Damage
To prevent electrical shock
– ALWAYS disconnect concentrator from electrical outlet before servicing.
Product Tank with Regulator Manufactured Before 7/1/12
1. Turn power Off (O) and unplug the unit.
2. Remove cabinet. Refer to 6.1 Removing Cabinet, page 17.
3. Remove the 1/8-inch tubing that is connected to the regulator assembly.
Remove the four mounting screws A that secure regulator B to product tank cap C.
4.
Remove regulator from product tank lid ensuring that the O-rings D are removed.
5.
6. Clean mounting surface of product tank cap.
7. Install the two O-rings for the NEW regulator onto the ports (underside) of the NEW regulator before installation.
WARNING!
Risk of Injury or Damage
Note flow arrow on regulator. This MUST face toward the regulator outlet tubing E or flow will be interrupted causing
system shutdown.
– Ensure proper installation of regulator.
8. Install new regulator onto product tank cap.
9. Use the four mounting screws to secure the new regulator onto the product tank cap.
10. Torque the mounting screws to 0.56 N*M (5 ± 1 in-lbs).
11. Reinstall 1/8-inch tubing that is connected to the regulator assembly.
12. Adjust regulator pressure if necessary. Refer to 6.8 Adjusting Regulator, page 27.
13. Run units and check for leaks. Refer to 8.1 Leak Test, page 41.
14. If no leaks detected, turn power Off (O) and unplug the unit.
15. Reinstall cabinet. Refer to 6.1 Removing Cabinet, page 17 and reverse all steps.

6.8 Adjusting Regulator

For this procedure, refer to images in 6.7 Replacing Regulator, page 27.
1. Turn power Off (O) and unplug the unit.
2. Remove cabinet. Refer to 6.1 Removing Cabinet, page 17.
3. Plug unit in and turn power switch On (I).
4. Adjust the flow meter to approximately 5 L/min as specified by the flow meter.
5. Install pressure gauge onto oxygen outlet.
Use a 0 - 207 kPa (30 psi). pressure gauge.
Check O pressure at oxygen outlet. It should read a steady 34.5 kPa ± 3.45 kPa (5 psi ± 0.5 psi) If pressure is not in specification,
2
proceed to STEP 3. If pressure falls within specification, no adjustment is needed.
Using the access hole located on the control panel, locate the pressure adjustment screw F in center of pressure regulator top B.
6.
1154245-F-02
Product Tank with Regulator Manufactured After 7/1/12
Service
27