
Chapter 17 Hardware procedures 737
Passport 15000, 20000 Hardware Installation, Maintenance, and Upgrade 5.2S2
Removing a temperature sensor from a lower cooling unit
Remove a lower (rear) cooling unit temperature sensor to replace it.
Prerequisites
WARNING
Risk of injury or equipment damage by electricity
While removing a temperature sensor inside a cooling
unit, less than -48/-60 V dc is still live on the controllers
and other two fans. Do not drop a screw, and because of
the exposed electronics inside the unit, do not use a
magnetic screwdriver. A dropped screw must be retrieved.
Also, do not touch anything other than the sensor, its
screws, or its wires.
WARNUNG
Verletzungsgefahr oder Geräteschäden durch
Elektrizität
Beachten Sie beim Austauschen eines Temperatursensors
in einem Kühlaggregat, daß die Steuerungen und
verbleibenden beiden Lüfter immer noch eine Spannung
von bis zu -48/-60 V führen. Lassen Sie keine Schrauben
fallen, und arbeiten Sie aufgrund der freiliegenden
Elektronikbauteile in der Einheit nicht mit einem
Magnetschraubendreher. Heben Sie fallengelassene
Schrauben auf. Berühren Sie nur den Sensor, seine
Schrauben und Verdrahtungen.
WARNING
Risk of injury by fan blades
While working on any equipment near the cooling unit
fans, be continuously aware that the rpm of a live fan can
suck loose clothing, hair, or jewelry into the fan blades or
amputate a finger. Do not touch a live fan with anything.
Summary of Contents for Passport 15000
Page 1: ...Passport 15000 20000 Hardware Installation Maintenance and Upgrade 241 1501 240 ...
Page 2: ......
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Page 6: ...6 Publication history 241 1501 240 5 2S2 ...
Page 32: ...32 Contents 241 1501 240 5 2S2 ...
Page 48: ...48 About this document 241 1501 240 5 2S2 ...
Page 52: ...52 Chapter 1 Overview of hardware tasks 241 1501 240 5 2S2 ...
Page 70: ...70 Chapter 2 Safety considerations and best practices 241 1501 240 5 2S2 ...
Page 84: ...84 Chapter 4 Alarm BITS module 241 1501 240 5 2S2 ...
Page 94: ...94 Chapter 5 CP and FP cables 241 1501 240 5 2S2 ...
Page 178: ...178 Chapter 11 Initial switch hardware installations 241 1501 240 5 2S2 ...
Page 182: ...182 Chapter 12 MAC address module 241 1501 240 5 2S2 ...
Page 216: ...216 Chapter 14 Power and ground hardware of a Passport 15000 or 20000 241 1501 240 5 2S2 ...
Page 872: ...872 Chapter 17 Hardware procedures 241 1501 240 5 2S2 ...
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