Version: 1
Revision Date: 02/2018
N
2-BLAST
®
FPS-500
O&M Manual
Page: 21 of 25
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WARNING: Whenever doing any maintenance on the system, make sure to power down the
system. Remove the front cover to gain access to the lters.
Note: Annual Filter replacement kit part # FRP-007
9.1 AIR PRE-FILTER
The integrated air compressor, of the N2-BLAST
®
FPS-500, has an air intake pre-lter. It prevents
particles from entering the compressor housing and damaging internal components. Replace
this lter once per year or every 1000 hours, whichever comes rst. To do so, remove the pre-
compressor lter cap by twisting it clockwise. Remove the old element and use a clean dry cloth
to clean the lter bowl before installing the new element.
9.2 AIR FILTER REPLACEMENT
The particulate and coalescing lters, after the air compressor, are designed to capture particulate
and moisture prior to entering the rest of the system. These lters need to be replaced once per
year or every 1000 hours, whichever comes rst.
Follow these instructions to replace lters:
1. Turn off the unit and open the front cabinet door.
2. Locate the air lters on the bracket in the middle of the cabinet.
3. Make sure the lters are completely depressurized by checking the pressure gauge.
4.
Remove two lter bowls. Do so by turning them counter clockwise.
5. After removing the lter bowls, rinse debris out of the bowls with warm water.
6. Dry the bowls with a clean dry cloth and replace old O-rings with the ones with the kits.
7. Change the lter elements:
a. Particulate Element - Pull the plastic element housing out of the lter bowl. Twist off
the black plastic cover and pull off the particulate element. Install the new element in
the reverse order..
MAINTENANCE
9
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