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HP Performance Optimized Data Center (POD) 240a EPO modes, EPO accidental activation, Battery backup during an EPO event

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Item	Component	Indicator color	Description

7	EPO mode	Key control	The key control allows you to select the
			EPO mode:
			•	Armed
			•	Test
			•	Bypass

8	EPO reset	White button	Select to reset the EPO system

EPO modes

The EPO system has three operating modes:

•Armed—The EPO system is armed and operational.

•Test—The EPO system is in test mode and will not power off the HP POD 240e NA in the events that would normally trigger an EPO.

•Bypass—The EPO system is non-operational and will not power off the HP POD 240e NA in any events that normally trigger an EPO.

For more information, see "ECS touchscreen and EPO indicators (on page 20 )."

The illuminated external EPO status indicator displays the current EPO mode.

•White—The EPO system is armed and operational.

•Red—There has been an EPO event and the HP POD 240e NA is shutdown.

•Yellow—The EPO system is operating in test mode.

EPO accidental activation

To help prevent accidentally pressing the EPO button and activating the EPO system, each EPO button is covered with a clear Lexan cover.

Battery backup during an EPO event

The following components are equipped with a UPS to help be sure that service is not interrupted during a loss of power to the HP POD 240e NA:

•Environmental control system (on page 34 )

•VESDA air sampling smoke detection system (on page 22 )

•Fire detection system (on page 22 )

•Lighting (on page 33 )

IMPORTANT: All critical IT UPS devices with batteries that exceed 700VA must be connected to the HP POD 240e NA EPO system, to be sure that the UPS batteries are disconnected during an EPO event. For more information about connecting UPS devices to the EPO system, see the HP Performance Optimized Datacenter 240e NA Maintenance and Service Guide.

Life safety systems 21

Contents

HP Performance Optimized Datacenter 240e North America (Adiabatic) User Guide Page Contents Page Page Overview Before you begin Operator safety Component safety Fire detection Preventative maintenance Environmental considerations Component identification Structural component identification Parts and part number identification Life safety component identification Page Page Electrical power component identification Page Page Control cabinet component identification Security component identification Racks Life safety systems Life safety overview EPO system ECS touchscreen and EPO indicators EPO modes EPO accidental activation Battery backup during an EPO event Fire detection system VESDA air sampling smoke detection system Manual fire pulls Fire alarm panel Fire detection sequence of operations Fire alarm indicators Emergency egress Power, electrical, and controls Site electrical system Power safety Grounding and bonding Grounding Capacities Power feeders Electrical panel labels Power distribution: electrical busway system Power distribution: Adiabatic system Panel schedules Wire color code Electrical busways Page Drop boxes Rack power Lighting Environmental control system Environmental control system overview Using the ECS Components of the ECS Satellite control boxes Facility connections to the ECS Connecting to the ECS through the demarcation box Connecting to the ECS through connection portals Managing the ECS from the HP POD 240e NA Configuring the ECS Page Logging in remotely to the ECS Locating the ECS IP address Password protected Navigating the ECS interface Logging in to the ECS touchscreen View Top screen Page AD detail screen Page Charts screen Psychrometric chart Readings chart Electrical Cabinets screen Controls Network screen Alarms screen Stats screen Page Configure Control settings HMI settings Managing the ECS system Setting the Min and Max temperature and RH setpoints Setting the Min and Max range for alarms Setting the offset alarm Setting the IP address Forcing an alarm Maintaining the ECS parameters Temperature and pressure sensors Page Adiabatic units Controlling the hot aisle fans AHU system Overview Adiabatic components Adiabatic media AHU theory of operation Page Page Static pressure control IT networking and communications Networking Connection portals Demarcation box Fire box Adding a phone Page Standard components Air filter sensor Optional components HP POD 240e NA optional components Power feeder pull boxes Specifications General specifications Rack specifications Environmental specifications Maintenance Periodic maintenance Preparing the Adiabatic units for winter Page Supply header gravity drain Adiabatic unit by unit blowdown Supply header blowdown Power up procedure Standard power up procedure Power up checklist Standard power up procedure Cold weather power up procedure Cold weather power up checklist Cold weather operation Power down procedure Full power down procedure Contacting HP Before you contact HP HP contact information Regulatory compliance notices HP POD 240e NA regulatory compliance Safety and NEC compliance Safety and regulatory compliance Warranty information Glossary labeled listed PDU PLC POD PSI PUE structure UPS VESDA Documentation feedback Index