Figure 43. Removing valve caps
Step 5.
Remove the extension hose from the air-purging tool.
Figure 44. Removing the extension hose
Step 6.
Insert one end of the air-purging tool extension hose into the center of air-purging valve stem at the
top of the heat exchanger to allow air to enter the manifolds.
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ThinkSystem Rear Door Heat eXchanger V2 User Guide