Install Guide
Fan air lter replacement
Environmental factors can decrease the amount of time required between air lter replacements. Check the environmental factors regularly.
An increase in temperature and/or particulate matter in the air might aect performance.
CAUTION: Check the fan air lters at six-month intervals and replace them as necessary. To accurately determine air lter
replacement intervals, regularly monitor the speeds of the cooling fans. An increase in overall fan speed may indicate a clogged
lter.
You must replace the fan air lters with new lters; you cannot clean and reuse the old fan air lters. Replacement lter media must meet
the requirements found in GR-63-CORE.
• Minimum dust arrestance of 65%, per ASHRAE Standard 52.1-1992. OR
• Minimum Eciency Rating Value (MERV) of 2, per ANSI/ASHRAE Standard 52.2-2007.
CAUTION: For Network Equipment Building Systems (NEBS) compliance, use NEBS approved lters.
Use fan air lters with reverse blue-banded air ow systems—PSUs and fans. You can replace the air lters individually on each fan within
the system without powering down a PSU module or disrupting trac.
The fan air lter media slides into the frame from the top. No tools are required.
1 Determine which lters to replace.
2 Unlatch and remove the rst module that needs the lter replaced.
3 Slide the existing lter upwards to remove it from the module.
4 Replace the lter with a new lter of the same size.
5 Repeat for the remaining modules that need the lter replaced.
Fans
35