HP 240A User Manual Page 25
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Power, electrical, and controls 25
Power, electrical, and controls
Site electrical system
To be sure that the POD solution is completely and safely integrated with your facility, HP requires that you
complete the following actions for the installed electrical system prior to the installation of the HP POD
solution:
• Short circuit analysis
• Arc flash study
• Circuit breaker coordination study
These actions must be performed for all associated parts of the electrical power train. The majority of the
details and factors that are required to complete these studies are associated with the existing installed
facility infrastructure.
CAUTION: Failure to complete these studies can cause serious issues with the electrical
integration of the POD into your electrical system.
Power safety
WARNING: To avoid the risk of personal injury or loss of life, all personnel must comply with PPE
requirements when opening or working inside areas of the HP POD 240e NA that are marked as
hazardous voltage, per NFPA 70E in accordance with NEC (NA) and IEC (EMEA and APJ).
Grounding and bonding
WARNING: To avoid the risk of personal injury or electric shock, the HP POD 240e NA must be
properly earthed (grounded), and each of the individual sections must be bonded together per
NFPA 70 in accordance with NEC (NA) and IEC (EMEA and APJ).
The HP POD 240e NA must be properly earthed to be sure that a common return path for electric current
exists, limit the build-up of static electricity, and absorb an unlimited amount of current without changing its
potential. To properly ground the HP POD 240e NA to the earth, you must connect the POD to building steel,
a ground rod, or a properly installed ground well that is connected to a building’s grounding system. The
grounding electrode conductor connection point is located on the cold aisle side adjacent to the power
cabinet.
A certified electrician must test and verify the HP POD 240e NA is properly grounded.
Grounding
The HP POD 240e NA includes the following types of grounding.
Earth ground
- 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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