HP 240A User Manual Page 22
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Life safety systems 22
Fire detection system
Each HP POD 240e NA is equipped with a fire alarm panel that is integrated with the fire detection system.
The fire system is designed as a stand-alone system, but the system can also interface with customer site fire
alarm systems. Customer site connections are the responsibility of the customer. Consult with HP for
connection locations.
The fire protection system includes:
• VESDA air sampling smoke detection system (on page 22)
• Manual fire pulls (on page 22)
• Fire alarm panel (on page 23)
• Fire alarm indicators (on page 23)
VESDA air sampling smoke detection system
CAUTION: Excess dust within the HP POD 240e NA can cause the VESDA smoke detector to
trigger a fire alarm.
The VESDA system features a single zone laser scan early warning smoke detector to provide the earliest
warning of a potential fire.
The orange VESDA piping that runs throughout the HP POD 240e NA includes inlets for smoke sampling. The
VESDA uses a high-efficiency aspirator to continuously draw in air from the HP POD 240e NA and circulate
the air through a dual-stage filter:
• Stage 1—A filter removes dust and dirt from the air sample.
• Stage 2—An ultra-fine filter removes remaining contaminants in the air sample.
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. The VESDA system cycles through two levels if smoke is detected:
• Level 1—Smoke concentration reaches the first setpoint, and the VESDA system sends an alarm signal
indicating that a fire might exist.
• Level 2—Smoke concentration reaches the second setpoint, and the VESDA system indicates that a fire
exists in the HP POD 240e NA.
IMPORTANT: The VESDA filter must be changed regularly to be sure that smoke detection
readings are accurate. For more information about changing the VESDA filters, see the HP
Performance Optimized Datacenter 240e NA Maintenance and Service Guide.
Manual fire pulls
The HP POD 240e NA has six fire pulls; two in each aisle. They are located in the life safety switch cabinet
next to each personnel door of the HP POD 240e NA.
Manually activating a fire pull does the following:
• Triggers a fire alarm
• Activates the fire alarm system horn and strobe lights
- North America (Adiabatic) 1
- User Guide 1
- Contents 3
- Contents 4 4
- Contents 5 5
- Overview 6
- Fire detection 7
- Preventative maintenance 7
- Environmental considerations 7
- Component identification 8
- Component identification 11 11
- Life safety systems 19
- EPO modes 21
- EPO accidental activation 21
- Fire detection system 22
- Fire alarm panel 23
- Fire alarm indicators 23
- Emergency egress 24
- Site electrical system 25
- Power safety 25
- Capacities 26
- Power feeders 27
- Electrical panel labels 27
- Panel schedules 29
- Wire color code 29
- Electrical busways 30
- Drop boxes 32
- Rack power 32
- Lighting 33
- Environmental control system 34
- Components of the ECS 35
- Satellite control boxes 35
- Top view shown 37
- Configuring the ECS 38
- • Add the PLC to a network 40
- Locating the ECS IP address 41
- Password protected 42
- Navigating the ECS interface 42
- Top screen 43
- AD detail screen 45
- Charts screen 47
- Psychrometric chart 48
- Readings chart 48
- Electrical Cabinets screen 49
- Controls Network screen 50
- Alarms screen 51
- Stats screen 52
- Configure 54
- HMI settings 55
- Managing the ECS system 56
- Setting the offset alarm 57
- Setting the IP address 57
- Forcing an alarm 57
- Adiabatic units 60
- AHU system 61
- AHU theory of operation 62
- AHU system 63 63
- AHU system 64 64
- Static pressure control 65
- Networking 66
- Connection portals 66
- Demarcation box 67
- Fire box 68
- Adding a phone 68
- Standard components 70
- Optional components 71
- Specifications 72
- Environmental specifications 73
- Maintenance 74
- Item Component Description 75
- Supply header gravity drain 76
- Supply header blowdown 78
- Power up procedure 79
- Standard power up procedure 81
- ECS and EPO 82
- Cold weather operation 82
- Power down procedure 83
- Contacting HP 84
- Safety and NEC compliance 85
- Warranty information 86
- Glossary 87
- Glossary 88 88
- Glossary 89 89
- Documentation feedback 90
- Index 91 91
- Index 92 92
- Index 93 93
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