NSS Series
Nuvair
Page 21
www.Nuvair.com
•
Remove the first cartridge (3, Figure 5) and the second cartridge;
replace both with new cartridge elements. Place pressure on each
cartridge (4, Figure 5) to seat the element fully into the canister.
Replace the O-ring (e, Figure 6) on the plug (c) every time the filter
is changed.
•
Reinstall cap to canister by rotating clockwise and tightening with
screwdriver or cap wrench.
•
There are sealing O-rings (e-f, Figure 6) on the plug and the filter
cartridge. If these O-rings deteriorate, the air is released via the
venting hole (g).
•
If you notice any venting from this hole replace the O-rings. When
replacing the O-rings observe the precautions described at the start
of the section.
•
Close the bleed valve/s.
DANGER
Do not carry out these tasks if the fill containment station has
just shut down and is hot; wait for the fill containment station
to cool. All maintenance work must be carried out with the fill
containment station OFF and the power supply lead unplugged from
the wall socket.
WARNING
Be sure that all pressure has been relieved from the system
prior to opening any filtration canister. Failure to vent
pressure from the system prior to opening the canister can
lead to serious personal injury or death. Difficulty turning the
filter cap may indicate there still is pressure in the filter canister.
CAUTION
If the fill containment station is in an area where there is high
humidity and high heat, the life of all filtration elements may
be as little as 35% of rated operating capacity. Check the fill
containment station manual and appendix for details on Filter
Element Life Factors.
10.6 Temperature Effect on Filter Life
This Filter Replacement Frequency Calculation Table is based on total
hours of fill containment station runtime. The table values are based on
pressure maintenance valve calibrated to 2900 psi (200 bar). Higher
pressures will affect overall performance. Filter Replacement “Life Factors”
are discussed in section 14.2.
Filter Temperature
Filter Duration (in hours)
°F
°C
Total Fill containment stations
Hours
104
40
63
86
30
106
68
20
185
50
10
337
Figure 6. Changing air filter cartridge.
Figure 6. Filter cartridge and
cartridge parts.
