HP Performance Optimized Datacenter 20c User Guide - North America

Life safety systems 16
Life safety systems
Life safety overview
The HP POD 20c has multiple life safety systems that work together to protect the HP POD 20c equipment and
personnel. The following life safety systems are available on the HP POD 20c:
• EPO system (on page 16)
• VESDA air sampling smoke detection system (on page 18)
• (Optional) fire protection system
• Emergency egress (on page 21)
• ECS connection to customer emergency systems
EPO system
If the HP POD 20c must be shut down during an emergency, the EPO system automatically shuts off all power
to the HP POD 20c and activates the EPO indicator on the ECS panel door and the EPO strobe on the POD
exterior.
To ensure that all rack-mounted UPS devices are shut down during an EPO event, verify that each
rack-mounted UPS device is connected to the HP POD 20c EPO system.
The EPO system can be activated two ways:
• Excessive high temperature in the hot aisle—The HP POD 20c includes two thermisters. If both
thermisters reach 60ºC (140ºF), an EPO shutdown is triggered automatically. One thermister is located
in zone 1 and one thermister is located in zone 3.
• Manual initiation—To manually trigger an EPO shutdown, press any of the EPO buttons. One EPO
button is located on the POD interior near the main exit. A second EPO button is located on the POD
exterior.