Replacing The Air Filter; Figure 6-7: Partially Removed Fan Try Module - AudioCodes Mediant 1000B Hardware Installation Manual

Hardware Installation Manual
6.2

Replacing the Air Filter

The Fan Tray module includes six integrated fans, which cool the device's internal
components. The Fan Tray module draws in air through a perforated grill on the right side
of the chassis. The incoming air passes through an air filter, whose honeycombed design
prevents radio frequency (RF) interference. The filtered air passes through the entire set of
modules, cooling each one, and then exits the device through perforated vents on the left
side of the chassis.
The Fan Tray module includes a removable air filter (located within the fan assembly,
immediately inside the perforated grill). The air filter should be replaced approximately
every three months and should be checked weekly to ensure that it is not saturated and
that it does not require cleaning/replacement. You should clean the air filter no more than
three times, after which the air filter should be replaced. Cleaning or replacing the air filter
can be carried out while the system is fully functioning.
Warnings:
To clean/replace the air filter:
1. Release the two screws on the top right-hand corner and the bottom right-hand corner
of the front panel of the Fan Tray module.
2. Pull the Fan Tray module outward. The figure below shows the Fan Tray module
slightly extracted.
3. With your fingertips, grasp the steel frame of the air filter and separate it from the Fan
Tray module; you should be able to remove it relatively easily.
4. Take one of the following steps:
Version 6.4
•
When removing the Fan Tray module while the power is on (or after it
has recently been switched off), the blades may still be rotating at high
speeds. Therefore, to avoid bodily harm ensure that you don't touch the
fan blades.
•
Before removing the Fan Tray module for cleaning the air filter, prepare
all the required equipment. It is imperative that the chassis does not
remain without the Fan Tray module for a lengthy period. Ensure that
you re-insert the Fan Tray module (without the air filter) while you are
cleaning the air filter, and then re-insert the air filter as soon as it is
clean.

Figure 6-7: Partially Removed Fan Try Module

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6. Hardware Maintenance
February 2012