IV Produkt Flexomix MIE-FB User manual

IV Continuous product development may give rise to specification changes without notice.
2014-11-05 1 (2)
Product sheet
Operation and MaintenanceFlexomix MIE-FB/FC
Filter fitting (code MIE-FB/FC)
The filter fit-
ting consists of
securing rails
for filters and a
housing front
section.
The fitting is
adapted for inte-
gration into the
standard module
(code EMM).
The fitting is available in two versions:
- FB for bag filter or AL filter
- FC for panel filter
FB can be fitted with:
• Synthetic filter, deep-folder. Class G4, M5 and M6.
• Glass fibre filter, deep-folded. Class F7, F8 and F9.
• Carbon filter class C7 with integrated pre-filter in
class F7.
• Aluminium filter, knitted.
FC can be fitted with:
• Panel filter, class G4 (code P4).
For both versions:
• The filters are mounted on rails and can easily be
removed and replaced.
• Filter slide rails are available in acid-proof, stainless
steel.
• The filter slide rails are fitted with effective sealing
strips.
• The model FB filter inserts are locked with eccentric
rails.
• Measurement outlets are available for connecting
differential pressure gauge.
Filter section accessories
• Filter monitor, U-tube manometer (code MIET-FB-01)
• Filter monitor, Kytölä manometer (code MIET-FB-02)
• Filter monitor, Magnehelic manometer (code MIET-
FB-03)
Insert damping (dB)
Octave band interme-
diate frequency (Hz) 63 125 250 500 1000 2000 4000 8000
G4 − − 1 2 3 3 5 6
M5, M6 2 3 6 8 14 17 19 21
F7-F9 3 3 6 8 14 17 19 21
Aluminium filter 1 1 1 2 3 3 5 6
C7 − − − 1 1 2 2 3
Technical data, size 240
Configuration
Example MIE-FB
Example MIE-FC
Filter
Size (cross-section) 240
No. of
filters
Dimensions (mm) No. of
bags/
filters
Filter
area,
total (m²)Filter type W × H Length
Bag filter G4 2 592 × 592 360 6 4.8
Bag filter M5 2 592 × 592 534 6 8.4
Bag filter M6 2 592 × 592 534 8 10.8
Bag filter F7–F9 2 592 × 592 534 10 13.2
Panel filter P4 2 596 × 596 48 – 0.7
Aluminium filter 2 592 × 592 25 – 0.7
Carbon filter C7 2 592 × 592 292 – 16.0

IV Continuous product development may give rise to specification changes without notice. 2014-11-052 (2)
Product sheet
Operation and MaintenanceFlexomix MIE-FB/FC
Filter types
Pre filter, fine filter and panel filter
Filters in class G4, M5 and M6 consist of deep-
folder filter bags mounted on a metal frame. The filter
material is synthetic fibre.
Filters in class F7, F8 and F9 consist of deep-folder filter
bags with a metal frame. The filter material is glass fibre.
Panel filter in class G4 (code P4) in synthetic fibre with
waxed cardboard frame (pre-filter).
Carbon filter with pre-filter
The class 7 filter consists of deep-folder filter bags con-
taining active carbon and an integrated class 7 pre-filter.
The filter is suitable for minimising the effect of, for exam-
ple, cooking smells and car exhaust fumes in comfort
systems.
Aluminium filter
The washable knitted aluminium filter is a smooth filter,
25 mm thick, and designed for use in air containing fats.
Operation and Maintenance
Instructions
The air filters in a ventilation system are designed to pre-
vent dust and other impurities from entering the building.
They should also protect sensitive components inside
the unit, e.g. coils and heat exchangers, from exposure
to impurities.
The dust separation efficiency varies considerably
between various filter types. The dust collecting effi-
ciency also varies substantially. It is therefore important
to use filters of the same quality and capacity when you
replace them.
Dust separation class is specified with standard des-
ignations:
• Pre filter G4
• Medium filters M5 and M6
• Fine filters F7, F8 and F9
Higher digits denote a higher collecting efficiency. The
filter is designed for one-time use. If the filter becomes
fouled, the unit will lose capacity. The filter should there-
fore be changed if the pressure drop across it exceeds
the specified value.
It is important to stop the unit before changing filters to
prevent dust from coming loose and being drawn into
the unit. The inside surfaces of the filter section should
therefore also be cleaned when the filter is changed.
Inspection
Check the pressure drop across the filter. The pressure
drop is measured with a manometer connected to meas-
urement outlets. The measurement outlets are connected
to each side of the filter. If the filter has reached its speci-
fied final pressure drop, it must be changed.
Filter replacement
1. Shut down the unit via the control terminal and
lock the safety switch in the 0 position.
NB: The safety switch is not designed for start-
ing/stopping the unit. Always start and shut
down the unit by means of the control equip-
ment.
2. Wait until the fans have stopped, then open the
inspection door.
WARNING: Positive pressure inside the
unit, risk of personal injury. Allow the
pressure to drop before you open the
inspection doors.
3. Release the eccentric rails.
Eccentric rails
4. Remove the old filter by pulling it towards you.
5. Clean the filter cabinets.
6. Install the new filter, press in the eccentric rails to
engage them and close the inspection door.
7. If there is a non-removable filter monitor: attach the
probes on each side of the filter.
8. Start the unit.
Cleaning
Vacuum and use a damp cloth to wipe clean the inside
of the filter section.