Table of Contents
Advertisement
Chapter 4. Installing the heat exchanger
Attention:
persons are required to move, install, replace, remove, or transport the heat
exchanger.
This chapter provides instructions for installing and removing the heat exchanger.
Installation guidelines
Follow these guidelines when you install the heat exchanger:
v Read the safety information that begins on page v. This information will help you
v Because of the size and weight of the heat exchanger, three trained persons are
v Observe good housekeeping in the area where you are working. Place removed
v Do not overtighten plumbing fittings or connections. This will cause leaks and
v Use pipe dope on all threaded plumbing connections to ensure against leaks.
v Do not try to bend or reposition copper tubing. Excessive movement or bending
v Repair all leaks before you connect power to the rack or any of the installed
v After the heat exchanger is filled, be sure to remove any excess water that might
v Plumbing components expand and contract with changing conditions and might
v If the heat exchanger core or copper tubing is leaking or is damaged, remove it
v New heat exchangers can be filled with pressurized nitrogen after assembly.
v When you install heat exchangers on a suite of racks, secure the racks together
© Copyright IBM Corp. 2011, 2013
Because of the size and weight of the heat exchanger, three trained
work safely.
required to install or remove the heat exchanger.
packing materials, tools, and other parts in a safe place.
might damage the plumbing fittings.
of copper tubing might damage the tubing and create leaks. If you find leaks,
check all plumbing connections and fittings for leaks before you connect power to
the rack or any of the installed components.
components.
be left over from the filling process.
fail or loosen after installation. Place paper towels under the heat exchanger for a
period of time; then, examine them for signs of a leak. If it appears that there
might be a leak, carefully inspect the entire heat exchanger to determine whether
there is a leak or whether it is water that is from the filling process.
from the rack and see Appendix A, "Getting help and technical assistance," on
page 77 for information.
Before you install the heat exchanger, the nitrogen must be purged from the heat
exchanger in a well-ventilated area. To purge the nitrogen, remove the caps from
the air-purging valves and press in on the valve stems to release the nitrogen.
first; then, install the heat exchangers.
29
Advertisement
Table of Contents
