HP Performance Optimized Datacenter (POD) 20c Site Preparation and Requirements Guide - China

Site requirements 13
Requirement Specification
Organic compounds
None
Type of water
Drinking water. Do not use de-mineralized or softened water.
Instant water fill flow
rate
0.6 lpm (0.16 gpm)
Humidifier
For the exact requirements, see the humidifier documentation.
IMPORTANT: If your water is out of range, consult a water quality expert.
IMPORTANT: You must provide a humidification water supply isolation valve that is external to
the HP POD 20c.
In addition to the previous requirements, observe the following requirements and recommendations:
• Do not treat the water with softeners. Softeners can produce foam, which affects the operation of the
unit.
• Do not use well water, industrial water, water from cooling circuits, or water contaminated by any
chemicals or bacteria.
• Do not add potential irritants to the water, such as disinfectants or anti-corrosive compounds.
• The manufacturer recommends installing an in-line filter for the water supply. It is your responsibility to
determine if a filter should be installed, and if so, its location. The filter cannot be installed inside the HP
POD 20c and must be compatible with the type of humidifier that is installed.
For more information, see the HP Performance Optimized Datacenter 20c Maintenance and Service Guide.
Drainage
Requirement Location Specification
Condensate drain
Hot aisle side (1) 3.18 cm (1.25 in) drain line and 26.5 lpm (7 gpm) max
Humidifier drains
Cold aisle side (1) 3.18 cm (1.25 in) drain line and 26.5 lpm (7 gpm) max
Chilled water supply
The following are the water quality requirements and specifications:
• Closed-loop water must not contain any lime scale deposits or loose debris.
• The temperature of the chilled water supplied to the HP POD 20c must be 12ºC to 24ºC (55ºF to 75ºF).
CAUTION: Freezing water can cause a blockage and damage to the unit. In outside locations
that are subject to freezing temperatures, an additive such as glycol might be necessary to lower
the freezing point. However, since the heat transfer potential of water with glycol is lower, the HP
POD 20c must be de-rated accordingly.
IMPORTANT: The chilled water system piping and heat exchangers must be drained completely,
and then purged using compressed air when storing or transporting at or below freezing
temperatures.