Section 23-Leak Test; Leak Test - Invacare Platinum IRC5LXO2AW Service Manual

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

Leak Test

1. Turn power Off (O) and unplug the unit.
2. Remove cabinet. Refer to Removing Cabinet on page 25.
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 leak-test solution or equivalent soapy water, leak test the following:
A. The two sieve bed hoses at the top of 4-way valve and hose to bottom center port
on 4-way valve (FIGURE 23.1).
NOTE: Refer to Preventive Maintenance on page 26 for maintenance of heat exchanger and
filters.
B. Hose connections to top and bottom fittings of sieve beds.
C. PE valve hose connections on top of sieve beds (FIGURE 23.2).
D. Hose fittings at product tank cap and check valves (FIGURE 23.2).
E. The front and rear fittings on heat exchanger (FIGURE 23.2).
7. If no leaks are found, proceed to STEP 11. If leaks are found, proceed to STEP 8.
8. Turn power Off (O) and unplug the unit.
9. Replace any tubing that appears cracked, worn, etc.
10. Repeat STEPS 3-7.
11. Re-install cabinet. Refer to Removing Cabinet on page 25 and reverse all steps.
Part No 1118396
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SECTION 23—LEAK TEST
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Platinum Oxygen