Section 23-Leak Test; Leak Test - Invacare IRC5PO2AW Service Manual

SECTION 23—LEAK TEST
SECTION 23—LEAK TEST
To prevent electrical shock, ALWAYS disconnect concentrator from electrical outlet
before servicing.

Leak Test

NOTE: For this procedure, refer to FIGURE 23.1 on page 77.
1. Unplug unit.
2. Remove cabinet. Refer to Removing Cabinet on page 23.
3. Plug in unit.
4. Turn the concentrator on ( ).
5. Let concentrator run for 20 minutes.
Apply small amount of leak test solution to fittings only. Avoid all other components. DO
NOT leak test 4‐way valve body. Carefully leak test for pressure leaks around sieve bed
hoses at 4‐way valve. DO NOT allow leak test solution to enter into 4‐way valve and
system.
6. With ʺleak‐test" solution or equivalent soapy water, leak test the following:
A. The two sieve bed hose connection at the 4‐way valve/manifold assembly
(Detail"A").
B. Leak test the hose fitting on center port of 4‐way valve/manifold assembly.
C. Hose connections to top and bottom fittings of sieve beds.
D. P.E. valve hose connections.
E. Hose fittings at product tank cap and check valves (Detail "B").
F. Both fittings on heat exchanger assembly (Detail "C").
7. Replace any tubing that appears cracked, worn, etc.
8. Re‐install cabinet. Refer to Removing Cabinet on page 23.
9. Refer to Typical Product Parameters on page 8 for concentration levels. If low
concentrations are observed, refer to Troubleshooting on page 16.
™
Perfecto
2
DANGER
WARNING
76
Part No 1154245