HP 20cp User Manual download pdf (Page 31)

Power, electrical, and controls 31

• Non-redundant power installation (1N load)—Both busways are powered from the same power feed.

• Redundant power installation (2N load)—Each busway is powered from parallel power paths from

independent power feeds.

Drop boxes

The internal electrical busways provide a location to connect each of the drop boxes, which then power the

PDUs. Stagger the drop boxes on the electrical busways by connecting one drop box to busway #1 and

connecting the next drop box to busway #2. A staggered configuration enables load balancing with the rack

equipment and is necessary to ensure redundancy.

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User Guide—International 1
Contents 3
Contents 4 4
Contents 5 5
Overview 6
Environmental considerations 7
Component identification 8
Component identification 9 9
End view shown 10
Item Component Description 10
Component identification 13 13
Front view shown 14
Side view shown 14
HP POD 20c racks 17
Life safety systems 18
EPO accidental activation 20
EPO modes 20
Manual fire button 21
Fire alarm indicators 22
Fire suppression system 22
Emergency egress 24
Site electrical system 25
Power safety 25
Lightning protection 26
Capacities 27
Power feeders 27
Electrical panels 28
Panel schedules 29
Wire color code 29
Electrical busways 30
Drop boxes 31
Power configurations 32
Rack power 32
HP POD 20c lighting 33
Environmental control system 34
Sensors 35
Temperature sensors 36
Facility connections to ECS 38
Configuring the ECS 39
• Add the PLC to a network 41
Password protection 43
Navigating the ECS interface 43
Overview screen 45
Status Overview screen 47
Calibrating the flowmeter 54
Controller Settings screen 55
• PI settings temperature 56
• PI settings pressure 56
ECS alarms 57
Alarm Meaning Solution 58
Cooling system 59
Cooling system components 61
Condensation management 63
Hot aisle drains 64
Cold aisle drains 64
Leak detection 65
Networking 66
Connection portals 66
Demarcation box 66
Fire box 67
Optional components 68
Power up procedure 69
Standard power up procedure 70
Site chilled water 72
POD heating procedure 72
POD operation 72
Power down procedure 73
Specifications 74
Rack specifications 75
Environmental specifications 75
Maintenance 77
Contacting HP 78
Regulatory information 79
Warranty information 80
Glossary 81
Glossary 82 82
Glossary 83 83
Documentation feedback 84
Index 85 85
Index 86 86

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HP 20cp User Manual Page 31

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