EPO modes | HP Performance Optimized Data Center (POD) 240a instruction

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.

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

Contents

Part Number November Edition AbstractPage Contents Air filter sensor HP POD 240e NA optional components Power feeder pull boxes Before you contact HP HP contact information Regulatory compliance notices Component safety Operator safetyOverview Before you begin Preventative maintenance Fire detectionEnvironmental considerations Structural component identification Component identification Component Description Parts and part number identification Exit sign locations Life safety component identification Component identification Component identification Electrical power component identification End view shown Component DescriptionMain breaker locations Reminds you that the electrical panels must only be Electrical power disconnect map label location End view shown Callout Electrical safety label Description UPS Control cabinet component identification IT section B control cabinet Component Description Security component identification Top view shown Component Description Racks Life safety systems Life safety overviewEPO system ECS touchscreen and EPO indicators Component Indicator color Description Battery backup during an EPO eventEPO modes EPO accidental activation Fire detection system Vesda air sampling smoke detection systemManual fire pulls Fire alarm panel Fire alarm indicatorsFire detection sequence of operations Emergency egress Power safety Power, electrical, and controlsSite electrical system Grounding and bonding Lightning protection Capacities Electrical panel labels Power feeders Power distribution Adiabatic system Power distribution electrical busway system Wire color code End view shown Feature SpecificationPanel schedules Electrical busways Wire color DescriptionPage Drop boxes Rack power Lighting Feature Specification Using the ECS Environmental control systemEnvironmental control system overview Facility connections to the ECS Components of the ECSSatellite control boxes Connecting to the ECS through connection portals Connecting to the ECS through the demarcation box Managing the ECS from the HP POD 240e NA Configuring the ECS Environmental control system Logging in remotely to the ECS Click Connect Locating the ECS IP address Navigating the ECS interface Password protected View Logging in to the ECS touchscreenTop screen Callout Icon name Description CA RH Information displayed Description AD detail screen Aisle in relation to the external ambient AD detail screen displays the following alarm conditions Charts screenAlarm displayed Description Operation displayed Description Psychrometric chart Electrical Cabinets screen Alarms chart Controls Network screen Alarms screen Stats screen Indicates the cold aisle combination temperature Control settings Configure HMI settings Setting the Min and Max range for alarms Setting the Min and Max temperature and RH setpointsManaging the ECS system US Customary o Metric Setting the offset alarm Setting the IP addressForcing an alarm Maintaining the ECS parameters Temperature and pressure sensors Callout Sensor Quantity per Description IT section Adiabatic units Controlling the hot aisle fansCallout Sensor Quantity per Description Hot aisle AHU system OverviewAdiabatic components Adiabatic media AHU theory of operation AHU system AHU system Static pressure control IT networking and communications NetworkingConnection portals Demarcation box Adding a phone Fire box IT networking and communications Air filter sensor Standard components Power feeder pull boxes Optional componentsHP POD 240e NA optional components General specifications SpecificationsRack specifications Features Specifications Environmental specifications Maintenance Periodic maintenancePreparing the Adiabatic units for winter Component Description Supply header gravity drain Adiabatic unit by unit blowdown Supply header blowdown Standard power up procedure Power up procedurePower up checklist Standard power up procedure Electrical Cold weather power up procedure Cold weather power up checklist Cold weather operation Full power down procedure Power down procedure Contacting HP Before you contact HPHP contact information Safety and NEC compliance Regulatory compliance noticesHP POD 240e NA regulatory compliance Warranty information Safety and regulatory compliance Glossary North American Outside air Power distribution unitProgrammable logic controller Performance-Optimized Datacenter Enclosure of sufficient size to enable entry of personnel Power usage efficiency Relative humidityUninterruptible power system Pounds per square inch Documentation feedback Index Index Warranty Winterize, Hvac units 74 wire color code Safety, component Safety, power connections