Exchanging The Filter Element (Nl1, Nl2, Nl4); Exchanging The Filter Element (Nl6); Disassembly, Exchange; Disposal - Emerson Aventics NL1 Notice D'instruction

Wearing parts
Series NL Material no.
NL1 R961400009
NL4 R961400012
Pre-filter element, 0.3 µm, material: impregnated paper
NL2 1829207047
NL4 1829207048
1829207049
1829207060
NL6 1829207050
1829207051
Microfilter elements, 0.01 µm, material: borosilicate glass fiber
NL1 1829207063
NL1/NL2 1829207031
NL2 R961400027
NL4 1829207028
1829207052
1829207053
NL6 1829207054
1829207055
Filter element, material: active carbon
NL1 1829207064
1829207065
NL2 1829207044
NL4 R412004434
1829207041
1829207056
1829207057
NL6 1829207058
1829207059

6.2.1 Exchanging the filter element (NL1, NL2, NL4):

NL1, NL2, NL4
with polycarbonate reservoir
u Make sure the relevant system part is without pressure.
u Exhaust the system.
u Release the protective guard (g Fig. 4 a, b), if
present, and pull it off downwards (g Fig. 4c).
u Unscrew the reservoir (g Fig. 4d) from the hous-
ing.
u Remove the filter seat (g Fig. 6 and g Fig. 7a).
u Exchange the filter seat (g Fig. 6 and g Fig. 7b, c).
u Slide the filter unit (filter seat and filter piece) back together (g Fig. 6 and g Fig. 7 b, c).
u Connect the filter unit to the filter and tighten it slightly by hand (g Fig. 6 and g Fig. 7
d).
u Remount the reservoir and, if present, the pro-
tective guard in reverse order as shown in Fig-
ure g Fig. 4.

6.2.2 Exchanging the filter element (NL6):

g Fig. 13
1. Make sure the relevant system part is without pressure.
2. Exhaust the system.
3. Release the 4 screws on the underside of the housing.
AVENTICS™ NL1 | NL2 | NL4 | NL6 | R412015556-BAL-001-AE | English
Variant
PC reservoir with semi-/fully
automatic drain; short metal
reservoir
PC reservoir with semi-/fully
automatic drain; short metal
reservoir
Vacuum filter; long metal
reservoir with fully automatic
drain
Extra long
G3/4, short length
G1, long length
Long length
Short length
Short length
Short length
Long metal reservoir (155)
with fully automatic drain
Extra long metal reservoir
(240) with fully automatic
drain
G3/4, short length
G1, long length
G1/8
G1/4
G1/8
Short length
Short length
Long metal reservoir (155)
Extra long metal reservoir
(240)
G3/4
G1
NL2, NL4
with metal reservoir
–
Pull down the unlocking de-
vice (g Fig. 5 a), turn the reservoir
(g Fig. 5 b) in an anti-clockwise di-
rection, and then pull it down and re-
move (g Fig. 5 c).
Remount the reservoir in the reverse
order shown in Figure g Fig. 5.
Insert reservoir at a 45° offset and
turn it to the right until the release
audibly latches.
4. Pull the bottom part of the housing, the taper including condensate reservoir,
carefully down and off (a).
5. Remove the filter seat.
6. Exchange the filter seat (b, c).
7. Slide the filter unit (filter seat and filter piece) back together (b, c).
8. Connect the filter unit to the filter and tighten it slightly by hand (d).
9. Reinstall the bottom part of the housing, the taper including condensate
reservoir, in the reverse order.

7 Disassembly, exchange

Danger of injury in case of disassembly or replacement under pressure or
voltage!
Disassembling or replacement when under pressure or electrical voltage may
lead to injuries and damage to the product or system components.
1. Make sure that the relevant system part is without pressure or voltage be-
fore disassembling the product or exchanging parts.
2. Protect the system against being restarted.

8 Disposal

Dispose of the product and condensate in accordance with the national regula-
tions in your country.

9 Conversion and extension

9.1 Assembling the differential pressure display and differen-
tial pressure gauge on the NL4 and NL6
g Fig. 8
g Fig. 9
1. Release the screws (b) on the filter housing (a) and remove the cover (c).
2. Insert the two seals 4 x 1.5 according to DIN 3771 (d).
3. Attach the differential pressure display or the differential pressure gauge (e)
to the filter housing and tighten the screws (f).
Max. tightening torque:
- 1.5 Nm, M5 x 20 according to DIN 965 for differential pressure display
- 1.5 Nm, M5 x 62 according to DIN 965 for differential pressure gauge

9.2 Change flow direction

On delivery the flow direction is from left (1, IN) to right (2, OUT). The following
conversion on the product is necessary if the flow direction is to be changed:

9.2.1 Filter conversion

On all components, the flow direction change is performed by rotating an instal-
lation by 180° around the vertical axis. The housing covers need to be changed
for the purpose.
Changing the housing cover (NL2, NL4, NL6)
g Fig. 10
Changing the housing cover is not possible on the NL1.
1. Remove the side cover caps on the compressed air connections by sliding a
suitable tool under the cover cap vanes, carefully lifting them up and taking
them off.
2. Lift the front and rear cover cap by pushing the lock-in bolts (2 on each side)
up on the latches.
3. Remove the cover caps carefully and evenly so that the 4 lock-in bolts do not
break off.
Now lift the front and rear cap evenly by carefully levering them open with a
suitable tool and taking them off.
4. Mount the cover caps on the opposite sides in the reverse order. The cover
cap with the AVENTICS logo should be facing to the front.
CAUTION
12