HP Performance-Optimized Datacenter, 6 m (20 ft) User Guide

Installation 16
3.
Close the main breaker in both the B input panel (1) and the A input panel (2) on the exterior of the
HP POD.
4. Close the main breakers in the electrical busway panels.
5. Inside the HP POD, close the breaker on each drop box that is connected to a rack of IT
components.
6. Power up your remaining racks and IT components following your standard IT startup procedure.
Cold weather initial startup procedures
IMPORTANT: When the internal HP POD ambient air temperature is below 50°F (10°C), to
ensure that the IT is not subjected to air temperatures that are too cold, you must follow
incremental procedures.
1. Verify that all HP POD installation requirements are complete.
o All utility connections are complete, with main power breakers open and main water valves off.
o All main and branch circuit breakers are open in house panels A and B.
o Optional auxiliary power for ECS is connected from an outside power source. The ECS is
powered off.
2. When the HP POD interior space temperature is below 50°F (10°C), open the main water valves to
enable 120 gal/min of 55° to 75°F (13° to 24°C) water to flow through the heat exchangers. This
action warms the air plenum space before starting the blowers.
Portable heaters can be used as supplemental heat to uniformly disperse heath throughout the HP
POD. Electric portable heaters must be powered from an outside source.
3. Power up the ECS through auxiliary power so temperature sensors can monitor space temperature.
4. If the HP POD air plenum or hot aisle space temperature is at or above 13°F (-25°C) for at least 60
minutes, then omit this step. While water is flowing through the heat exchangers, monitor the hot
aisle space temperature until it has reached -13°F (-25°C) and continue this warm up for 60 minutes
before proceeding to the next step.
5. To energize the HP POD blowers, switch the following breakers to the closed position:
o Main power