Check Point Quantum LightSpeed Appliance QLS250 Installing And Removing page 7

QLS450, QLS650, and QLS800 Appliance Rear Panel
Item Description
1 Cooling fan unit (fan numbers 1 and 2) from right to left
2 Cooling fan unit (fan numbers 3 and 4) from right to left
3 ESD ground plug
4 Cooling fan screws
Note - QLS450, QLS650, QLS800 appliance fans are different from QLS250 fans, as
there are 4 stacks of 2 fans.
In QLS450, QLS650, QLS800 appliances, units are numbered in stacks of two (one inner and one outer) for
a total of 8 fans. When checking the hardware sensors in the CLI, they are referred to as 1-4 inside and 1-4
outside. See also "Cooling Fan Units Naming Convention" on page 9
Caution - Components inside the appliance can overheat if they are not cooled, even for
a short period of time.
To prevent damage caused by too much heat:
When a cooling fan unit fails, replace it as soon as possible
n
If more than one cooling fan unit fails, we recommend that you shut down the
n
appliance
n Do not hot swap more than one cooling fan unit at a time
To replace a fan unit:
1. Loosen the screws on the cooling fan unit to be replaced.
2. Hold the screws and pull the cooling fan unit away from the appliance.
QLS250, QLS450, QLS650, and QLS800
.
Installing and Removing Fans in Check Point Appliances | 7