N
2
-BLAST
®
Nitrogen Generator FPS-1750, FPS-3000, and FPS-6000
South-Tek Systems
Version:
7
Revision Date: 5/24/16
Page 16 of 25
6
SYSTEM MAINTENANCE
Servicing the N
2
-BLAST
®
Nitrogen Generator:
Before personnel attempt to service the unit, ensure the power switch has been
turned to the off position, and then disconnect the unit’s external power cord from
the building electrical power supply. Always follow specific manuals from STS
when servicing your system.
The N
2
-BLAST
®
Nitrogen Generator
utilize
three different filters, seen in
right. The Particulate, Coalescing, and
Absorber filters must be changed out
annually or every 1000 hours (hour meter
located on the outside bottom right corner of
the cabinet) of operating time, whichever
comes first. Filter Replacement Kits can be
purchased from South-Tek Systems that
include the Filter Elements for the specified
unit (STS Part # FRP-002).
Prior to Filter Bowl Removal
Ensure the power has been disconnected
from the source. Air supply to the unit
should also be bypassed, or disconnected
from the unit. You can remove the top cover
to the unit by removing the 4 screws that secure it to the cabinet, however it is not
necessary to do this. The pressure gauge located on the regulator that houses the
Particulate Filter should read 0 psi. If the pressure gauge still shows the system
having pressure, you can relieve the pressure by pulling the safety Relief Valve
ring located after the Absorber Filter.
Particulate Filter Element Replacement
1)
Remove Filter Bowl by pressing up slightly
and turning the bowl 1/8 turn to the left,
then pulling down (see
). After
bowl is removed you will be able to see the
filter element secured in place by a
threaded ring just under the element.
2)
Unscrew the thread counter-clockwise, and
the filter element can be removed easily by
pulling down.
3)
Install the new Particulate element and
Figure 2: Particulate, Coalescing, and
Absorber, respectively
Figure 3: Particulate Element
Replacement
