Cylinder Fill Test - Invacare HomeFill II Service Manual

SECTION 9—TROUBLESHOOTING/CYLINDER FILL TIMES
10. Once the pressure is above 500 psi, start leak checking the unit at the test points in the
following table.
NOTE: If necessary, use a flashlight to aid in the identification of bubbles.
STAGE
Inlet tubing–Including bulk head fitting, plastic tee, check valve, outlet HEPA filter, accumulator
assembly, tubing connections, inlet fitting (bottom), head/cylinder seal, output fitting (top), and cop-
1 per tubing.
2 Inlet fitting (top), head / cylinder seal, output fitting (bottom) and copper tubing.
3,4 Inlet fitting (bottom), head / cylinder seal, output fitting.
Inlet fitting (bottom), head / cylinder seal, output fitting, high pressure switch, burst disk, and copper
5 tubing–including disconnect assembly.
DO NOT tighten fittings beyond a ¼ inch turn. Tightening beyond a ¼ inch turn
risks stretching and weakening the copper material and causing an explosion.
11. If a leak is found at a fitting, carefully tighten the fitting up to a ¼ inch turn to
eliminate the leak.
12. Continue inspection until pressure reaches 2000 psi.
13. Once the high pressure gauge reaches 2000 ± 100 psi, the unit should shut Off.
14. Bleed the pressure down to 1000 ± 200 psi and repeat STEP 13 to confirm.

Cylinder Fill Test

NOTE: For this procedure, refer to FIGURE 9.2 on page 52.
The following procedure describes the cylinder fill test process for the HomeFill II.
Tools and Supplies Needed:
• Timer. See Figure 9.1.
• O analyzer
2
• Flow meter
• Pressure gauge
• Leak Tek 50/50 mix
HomeFill™II Compressor
TEST POINTS
WARNING
FIGURE 9.1 Timer
50
Part No 1141487