HP Performance Optimized Datacenter 20c User Guide - China

Life safety systems 19
The orange VESDA conduits that run throughout the HP POD 20c include inlets for smoke sampling. The
VESDA uses a high-efficiency aspirator to continuously draw in air from the HP POD 20c and circulate the air
through a dual-stage filter:
• Stage 1—Dust and dirt are removed from the air sample.
• Stage 2—Remaining contaminants in the air sample are removed with an ultra-fine filter.
After the air passes through the dual-stage filter, it enters a calibrated detection chamber where a laser scans
the air sample for the presence of smoke. When the smoke concentration reaches the first setpoint, the
VESDA system will send an alarm signal indicating that a fire might exist. When the smoke concentration
reaches the second setpoint, the VESDA system indicates that a fire does exist in the HP POD 20c and sends
an activation signal to the fire suppression system.
IMPORTANT: The VESDA filter must be changed regularly to ensure accurate smoke detection
readings. For more information about changing the VESDA filters, see the HP Performance
Optimized Datacenter 20c Maintenance and Service Guide.
(Optional) Fire suppression system
CAUTION: The POD fire suppression system is manufacturer designed, engineered, and
installed to comply with national standards. However, HP does not certify that the installed fire
suppression system meets all local jurisdiction requirements. Compliance with local codes is your
responsibility, and includes specific local requirements for initial and periodic inspections,
certifications, and maintenance.
Any additional local requirements are not covered as part of the option price or basic installation
and deployment services, unless specifically included in an executed Statement of Work.
WARNING: Fire suppression agents include a pre-discharge warning and evacuating system. In
the event of a fire, all protected space must be evacuated as soon as possible.
IMPORTANT: The fire suppression abort button is located next to the ECS panel and can be
pressed to interrupt the 30-second fire suppression agent release delay for an additional 30
seconds. This button interrupts the countdown, but does not reset the 30-second fire suppression
agent release delay. The fire suppression agent release countdown will continue when the abort
button is released until the time is exhausted and the fire suppression agent is released.
The fire suppression system contains conventional fire alarm control circuits and includes features required
for single or dual-hazard suppression release applications, including a low-toxicity agent. In the event of fire
suppression release, the suppression tanks must be refilled by a certified technician.
Fire system operator panel
The panel is configured by the manufacturer in accordance with the local fire marshal and fire code
requirements.
The operator panel includes the following:
• Alarm status LED
• Trouble status LED
• Input status LED
• Output status LED