IMPORTANT: To allow the POD ambient temperature to be raised in a controlled manner, open the chilled water supply and return isolation valves to enable 908.49 lpm (240 gpm) at a temperature of 13ºC to 24ºC (55ºF to 75ºF) to flow through the heat exchangers and allow the circulation fans to bring the ambient temperature to >10ºC (50ºF).
•Portable heaters can be used to uniformly disperse supplemental heat throughout the POD.
•Electric portable heaters must be powered from an outside source.
ECS and EPO
Verify the following using the ECS touchscreen and EPO indicators:
•The ECS panel is operational and displays the user interface.
•POD lighting is operational.
•The EPO system is set to Armed (White) or Bypass (Green).
POD heating procedure
1.On the ECS touchscreen, verify that all system components are operational (green) and no alarm conditions exist.
2.On the ECS touchscreen, verify that the POD chilled water flow rate is established on the flow rate indicator.
3.Determine the hot aisle temperature:
o If the hot aisle temperature is at or above
o If the hot aisle temperature is not at or above
4.Record the cold aisle temperature displayed on the ECS. The recorded temperature is the starting temperature of the servers.
IMPORTANT: With
5.When the cold aisle temperature reaches a minimum of 10ºC (50ºF), maintain the temperature for at least 60 minutes before proceeding.
6.Set the POD chilled water flow control and all fans to AUTO mode.
CAUTION: Do not continue the start up procedures unless the chilled water flow control valve and the fans are in AUTO mode.
POD operation
1.In the hot aisle, close the power drop box breakers for each rack and ensure that the IT equipment is operating.
2.In the cold aisle, monitor the flow control position, chilled water flow, and POD temperatures.
3.Wait 5 minutes to allow the system to stabilize.
The HP POD 40c G2 is now fully operational and the control system automatically controls the fans and the flow control valve position.
Power up procedure 69