HP Performance-Optimized Datacenter, 12 m (40 ft) User Guide

Maintenance 49
CAUTION: Perform this maintenance only if power has been disconnected to the HP POD or
the busway breakers are in the open position.
Water system maintenance
You must maintain your water system quality. Consult a water treatment specialist to perform the following
maintenance:
Flush the HP POD
How often you must flush the HP POD depends on how often you shutdown the HP POD and the water
quality.
Maintain water quality
The water treatment specialist must periodically take a water sample and add new chemical treatments to
the HP POD water or tempered water package as needed to maintain the specified water quality ("Water
quality requirements" on page 22).
Air filter replacement
There are six air filters inside the HP POD.
If you have the optional air filter sensor (on page 39) installed, you are notified through your ECS when
you need to change a filter.
If you do not have the sensor installed, HP recommends periodically inspecting and changing each air
filter. You can replace an air filter during normal HP POD operation.
Heat exchanger maintenance
The heat exchanger requires no maintenance. If particulates are present in the cooling water, a filter must
be fitted immediately upstream from the water inlet fittings. Check the functionality of the condensation
drainage system regularly. Regularly perform visual inspections for leaks (annually).
Drains
HP recommends visually checking drains for blockages every 30 days and functionally testing drains
every 90 days.
Third-party components
Consult the provided Operations and Maintenance manual for other required maintenance items.
EPO system maintenance
HP recommends functionally testing the EPO system every 180 days.