content_image/1006734.jpg content_image/1006735.jpg
Figure 2-37 shows an example of various frame configurations. Every frame includes a heat exchanger when the water-cooling feature is ordered. 

<img src='content_image/1006734.jpg'>

If one client water supply or one WCU fails, the remaining feed maintains PU SCM cooling for the frame. The WCUs and the associated drive card are concurrently replaceable. In addition, the heat exchangers can be disconnected and removed from the system concurrently. 

## 2.10 Summary 

All aspects of the z15 structure are listed in Table 2-14 

<img src='content_image/1006735.jpg'>

