IBM Rear Door Heat eXchanger V2 Installation And Maintenance Manual page 60

Figure 40. Attaching the hoses to the manifold couplings
50
Rear Door Heat eXchanger V2: Installation and Maintenance Guide
4. Press in on the valve stem of the air-purging valve to purge the nitrogen from
the heat exchanger. Continue holding in the valve stem until the pressure is
released.
5. Connect the return and supply hoses.
Note: To avoid damage to cooling system tubing, do not apply excessive force
to the couplings.
Supply-hose
assembly (Male)
Return-hose
assembly (Female)
Return-manifold
coupling (Male)
Supply-manifold
coupling (Female)