Installing A Fan Controller - Nortel Passport 15000 Hardware Installation And Maintenance

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452 Chapter 17 Hardware procedures

Installing a fan controller

Prerequisites

241-1501-240 5.2S2

Install a fan controller to restore the operation of a fan.

Risk of injury by fan blades

While working on any equipment near 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 rotating fan with

Verletzungsgefahr durch Lüfterblätter

Beim Arbeiten in der Nähe der Lüfter des Kühlaggregats

besteht die Gefahr, daß ein rotierender Lüfter lose

Kleidung, Haare oder Schmuck in die Lüfterblätter saugt

oder einen Finger abtrennt. Berühren Sie einen Lüfter

niemals, weder direkt noch indirekt.

You must be familiar with "Safety considerations and best practices"

You need an appropriate fan controller for the version of cooling unit:

— NTHR10AA for a lower (rear) cooling unit NTHR51AA

— NTHR10AB for a lower (rear) cooling unit NTHR51AB

— NTHR10AA for a for an upper (front) cooling unit NTHR52AA

— NTHR10AB for a for an upper (front) cooling unit NTHR52AB

For controller NTHR10AA, you need a non-magnetic one-piece short-

shafted screwdriver to fasten the very large slotted captive screw.

For controller NTHR10AB, you need:

— a non-magnetic one-piece screwdriver to fasten the very large

Phillips captive screw

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