Maintenance Schedule; Replaceable Components - IBM Rear Door Heat eXchanger V2 Installation And Maintenance Manual

Maintenance schedule

Perform the following maintenance tasks at the indicated time intervals.

Replaceable components

Field replaceable units (FRUs) must be replaced only by a trained service
technician, unless they are classified as customer replaceable units (CRUs).
Tier 1 CRU: Replacement of Tier 1 CRUs is your responsibility. If IBM installs a Tier
1 CRU at your request without a service contract, you will be charged for the
installation.
Tier 2 CRU: You may install a Tier 2 CRU yourself or request IBM to install it, at no
additional charge, under the type of warranty service that is designated for your
product.
For more information about the terms of the warranty and getting service and
assistance, see the Warranty Information document that comes with the heat
exchanger.
Table 4. Field replaceable units for the IBM Rear Door Heat eXchanger V2 Type 1756
Description
Rear Door Heat eXchanger assembly
Door hinge accessory kit
Latch, door
Upper air baffle kit
Lower air baffle kit
Purge tool kit
Ladder, platform
Table 3. Maintenance schedule
Task
Inspect the heat-exchanger fins for air
blockage at the fins (from dust, dirt, and
debris).
Perform the air-bleed process
Inspect the entire length of the supply hose
and return hose for damage, age cracks, and
kinks. Be sure to inspect at the door and
outside of the rack.
CRU part
number
(Tier 1)
95Y2281
90Y3057
95Y2283
95Y2282
46C6345
45E0998
When to perform
Annually
v After a few minutes of water flowing
through the heat exchanger
v One month after installation
v Whenever warm air is exiting the top of
the heat exchanger while cooler air is
exiting below that
Annually
FRU part number
CRU part number (trained service technician
(Tier 2) only)
95Y2284
Chapter 5. Maintaining the heat exchanger
61