Section 11-Regulator; Replacing Regulator - Invacare Perfecto 2 Series Service Manual

SECTION 11—REGULATOR

Replacing Regulator

To prevent electrical shock, ALWAYS disconnect concentrator from electrical outlet
before servicing.
NOTE: For this procedure, refer to FIGURE 11.1 on page 50.
1. Unplug unit.
2. Remove cabinet. Refer to Removing Cabinet on page 23.
3. On concentrator models with the SensO
oxygen sensor housing.
4. Remove the four mounting screws that secure regulator to product tank cap.
5. Remove regulator from product tank lid ensuring that the O-rings are removed.
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.
Ensure proper installation of regulator. Note flow arrow on regulator. This MUST face
toward the regulator outlet tubing or flow will be interrupted causing system shutdown.
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 5 ± 1 inch-lbs.
11. On units with SensO
12. Adjust regulator pressure if necessary. Refer to Adjusting Regulator on page 51.
13. Run unit and check for leaks. Refer to Leak Test on page 77.
14. Reinstall cabinet. Refer to Removing Cabinet on page 23.
Part No 1148070
DANGER
2
WARNING
, reinstall 1/8-inch tubing to oxygen sensor housing.
2
49
SECTION 11—REGULATOR
unit ONLY, remove the 1/8-inch tubing to
™
Perfecto
2