IBM 7014 T00, Manual

Page: 160 / 196

Figure 103. Heat exchanger performance, 20kW heat load
*A given water temperature may be used only if the system that is supplying the water is able to measure
the room dew point and automatically adjust the water temperature accordingly. Otherwise, the water
temperature must be above the maximum dew point allowed at that datacenter installation.
Installing the heat exchanger on an IBM Enterprise Slim Rack (7965-S42)
Install the heat exchanger on an IBM Enterprise Slim Rack (7965-S42).
About this task
To install the heat exchanger, complete the following steps:
Procedure
1. Read the safety information. For more information, see “Rack safety notices” on page 141.
2. Use the wrench that comes with the rack to lower the front and rear leveling pads. Make sure that the
rack is level on the floor.
3. Remove the rack rear door. If the rack came with an existing basic rear door, remove it, and the
hinges and door catch that are bolted to the rack.
4. Remove power from the rack and all installed components.
5. Remove the cardboard top from the heat exchanger carton.
6. Remove the parts and tools from the carton and set them near the rack. Do not unpack the heat
exchanger until later in the procedure.
7. Install the latch plate on the left side of the rack.
a. Install two M6 clip nuts on the left-side rack-mounting flange of the rack, as shown in Figure 104
on page 147 .
b. Align the two screws with the lower two holes in the latch plate, as shown in Figure 104 on page
147.
146 Power Systems: Racks and rack features