The cooling module is hot-swappable, and can be replaced while the system is powered
on and operational.
NOTE: Ensure that you are familiar with the safety and electrical warnings
described in “BTI7802 Field-Replaceable Units (FRUs)” on page 193.
Do not pull out the cooling module until the fan blades have stopped rotating.
NOTE: To ensure there is no risk of the system overheating, you should
complete this task within five minutes in a 30
o
C (86
o
F) working ambient.
Tools Required
•
Number 2 Phillips screwdriver
NOTE: The BT8A78CH2-I02 chassis supports the BT8A78FAN2 cooling
module only. An Equipment Mismatch (eqptMism) alarm is raised if a different
cooling module is installed.
1. Slide the latch to the left and pull the handle to unseat the module. Do not pull out
the module until the fan blades have stopped rotating.
2. Remove the faulty cooling module.
Hold the module handle, and slowly slide the cooling module out.
3. Place the cooling module in an antistatic bag or a grounded antistatic mat.
Copyright © 2019, Juniper Networks, Inc.196
BTI7800 Series Hardware Overview and Installation Guide
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