HP Performance Optimized Datacenter 20c User Guide - China

Cooling system 65
Depending on the IT equipment installed in your HP POD 20c, you can choose to change both default
parameters to improve the overall efficiency of your system. To discuss the effects of changing these
parameters for your specific HP POD 20c, contact HP ("HP contact information" on page 80).
Item Component Quantity Description
1
Fan 3 banks of 4 (12
total) fans per zone
Circulates cool air from the heat exchangers
throughout the HP POD 20c
2
Fan power supply assembly 3 Provides power for the fans
Condensation management
CAUTION: To maintain accurate environmental conditions inside the HP POD 20c, do not leave
the HP POD 20c doors open during operation.
The heat exchanger drip trays collect condensation that forms on the heat exchangers. This collected
condensate drains out of the HP POD 20c through the heat exchanger condensate drain. HP recommends
connecting the condensate drain on the HP POD 20c to a facility drain to prevent collection of water near the
HP POD 20c.
The HP POD 20c has one 3.18 cm (1.25 in) condensate drain outlet located at the end of the hot aisle of the
HP POD 20c. The drain outlet is directly connected to the heat exchanger drip trays. The HP POD 20c main
supply and return line is connected to the condensate drain line.
To avoid excessive buildup of condensate and to conserve energy, raise the cooling water temperature to
above the dew point to manage condensation while maintaining the necessary cooling capacity.
Drains
WARNING: Water that drains around the HP POD 20c can cause a potential slip hazard. Use
caution where slip hazards are present.
Water from natural condensation will form. Condensation from the heat exchangers flows to the single
condensation drain located on the utility end of the hot aisle.