HP Performance Optimized Data Center (POD) 40c manual Drainage, Chilled water supply

Requirement	Specification
Connection	1.9 cm (.75 in) G
	Adapter to 1.9 cm (.75 in) FPS
Hardness	No greater than 40°fH (equal to 400 ppm of CaCO3)
Conductivity	100 to 1250 μS/cm
Organic compounds	None
Type of water	Drinking water. Do not use de-mineralized or softened water.
Instant water fill flow	0.6 lpm (0.16 gpm)
rate
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 40c G2.

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 40c G2 and must be compatible with the type of humidifier that is installed.

For more information, see the HP Performance Optimized Datacenter 40c G2 Maintenance and Service Guide.

Drainage

Requirement	Location	Specification
Condensate drains	Hot aisle side (2)	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 40c G2 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 40c G2 must be de-rated accordingly.

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