2
English
HFN005-370
i) If operating temperature exceeds 60°C, t any protective
guards necessary to prevent accidental contact and burns.
Install the Filter(s) as follows:
a) If the lter is supplied as housing only, without the element
and drain, it will be necessary to open the lter housing and in-
stall both the element and drain, as described in their respective
manuals.
b) If necessary, t the optionaldi erential pressure indicator or
gauge (see Tab. 2) onto the Filter, as described in the respective
manual.
c) If necessary, mount the Filters in series as described in para.
3.1.
d) Mount each Filter onto the wall or otherwise; It is available an
optional wallmounting kit (see Fig.1 and Tab. 2).
e) Before installing the Filter(s) ensure that the compressed air
network upstreamof the Filter(s) is clean and free of impurities.
f) Connect the Filter(s) to the compressed air piping (for air con-
nection sizes see Fig.4) by attaching the inlet and outlet piping
to the connections on the Filter head, respecting the direction of
the arrows on its top (Fig.2).
g) When installing the lter, ensure the minimum spaces indicat-
ed in Fig. 7 and Table 3 necessary for replacing the lter element.
h) Grades D, Q, P and S: Write the Filter installation date on the
“Remember to change your Filter Element” label and stick it
onto the Filter housing.
GradeC: Stick the Filter performance graph, supplied in the
packing, onto the Filter housing.
i) HFN122-370 only (except Grades D and C): Fit the separately
supplied condensate drain to the outlet (Fig.6).
j) Slowly open the shut-o valve upstream of theFilter.
k) Allow air to ow for a few minutes with the condensate drain
forced in the ’open’ position (refer to condensate drain manual).
en close the drain.
l) Open the shut-o valve downstream of the Filter.
HFN300-370: Ensure that the closed lock (see Fig.4) on the body
is aligned with the arrow on the drain bowl before putting the
HFN under pressure.
ATTENTION
Do not interchange heads+bodies from di ering lters, as this
could compromise the integrity of the product.
Mounting Filters in series
e Filters can be connected together using the optional (see Fig.3
and Tab. 2) 3-piece male/male connection nipples. ese are sim-
ply screwed into the Filters’ respective air outlet and air inlet con-
nections.
Multiple nipples can be used if several Filters need to be connected
in series.
5. Operation and maintenance
Avoid subjecting the unit to thermal stress caused by repeated
uctuations in incoming uid temperature.
N.B.:Always use original spares supplied by themanufacturer.
Failure to do so renders the manufacturer not liable for incorrect
unit operation.
To guarantee correct performance the Filter Element
must be substituted at least once a year.
e Filter, which achieves a level of ltration as for that in Tab. 1,
must receive the following maintenance:
substitution of Filter element
e Filter Element must be substituted at least once a year, or if
earlier if the following occurs (for substitution method refer to the
manual supplied with the Element):
• Filters with di erential pressure indicator: substitute the Ele-
ment when the indicator’s colour changes from green to red.
• Filters with di erential pressure gauge: substitute theElement-
when the arrow enters the red “Change Element” zone.
• Filters without di erential pressure indicator or gauge: sub-
stitute the Element when there are signs of excessive pressure
drop or excessive impurities (oil, dirt moisture) downstream of
the Filter.
• Filters with Grade C Element: substitute the Element accord-
ing to the recommended Element working hours
Grades D,Q, P and S:Write the Element substitution date on the
“Remember to change your Filter Element” label supplied with the
Element, and stick it onto the Filter housing.
condensate drain:
• Filters with automatic drain: see respective manual.
Disposal of used material
For the guideline waste code, refer to CER 150202.
6. Spare parts list (see Tab. 2)
It is recommended the use of original spare parts.
When placing an order quote the part’s code, as well as the unit’s
model no. and serial no.
To Next Page
Loading...
