Klimor EVO-S - 4. FUNCTIONAL UNITS; 4.1 MX Mixing and recirculation; 4.2 Air filters P, B, MP; 4.2.1 Metal filter G2

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4. FUNCTIONAL UNITS
Depending on the functional requirements resulting from
the air handling process, the units are equipped with the
following batch units:
4.1 MX Mixing and recirculation
MX mixing sets are used in intake air handling units. These
sections are equipped with two dampers.
The MX recirculation sets are used in intake-outlet air han-
dling units. These sections are equipped with recirculation
damper and shut-o dampers. Dimensions of the AHU con-
nections according to Table 4.
In the PHE cross-ow exchanger section the recirculation
damper is mounted directly on the exchanger bypass chan-
nel and does not require an additional chamber.
All rectangular inlets and outlets in the units are equipped
with exible stubs. They are screwed to the damper or the
air handling unit cover. Size of exible stubs and rectangu-
lar dampers for individual units according to section 2.2.4.
Elastic connections are secured for transport by means of
metal strips. The exible connection is equipped with a yel-
low-green grounding wire, which should not be removed,
but connected to the duct system.
4.2 Air lters P, B, MP
Air lters can be supplied in accordance with PN EN 779 or
EN-ISO 16890. Filter classication is given in the Table 11.
Table 11. Classication of lters used in EVO units
Filter
thickness
[mm]
Filter type
Standard
EN-779
Standard
EN ISO 16890
Filter class ePM10 ePM2,5 ePM1
48 Metal G2 Coarse 30% - - -
50 Cassette G4 Coarse 80% - - -
50 Cassette M5 ePM10 50% 50 15 5
300 Bag G4 Coarse 70% - - -
300 Bag M5 ePM10 50% 50 10 5
500 Bag F7 ePM1 55% 85 65 55
500 Bag F9 ePM1 80% 95 90 80
48 mini pleat M5 ePM10 50% 50 15 5
96 mini pleat F7 ePM1 60% 90 70 60
96 mini pleat F9 ePM1 80% 95 90 80
In the pre-ltration section PF, cassette lters class G2÷M5,
bag lters class G4 and M5 or minipleat class M5 are in-
stalled.
In the secondary ltering section SF, bag lters class F7 and
F9, minipleat class F7 and F9 or electrostatic lters are in-
stalled.
The dimensions of the lters used are specied in the KT
certicate.
The lters must be replaced when the permitted pressure
drop at the lter is exceeded (Table 12) or according to
avisual decision in the control system.
The unit must be switched o during lter renewal.
The class of new lters has to correspond to the class of the
used lters. During lter renewal also the ltration section
has to be cleaned.
Table 12 Acceptable lter pressure drop
Filter class EN 779-2012
acc. to test
ISO 16890-2018
EN 13053:2019
G1÷G4
(ISO COARSE)
250 Pa 200 Pa
+50 Pa ltra
czystego
M5÷F9
(ePM...)
450 Pa 300 Pa
+100 Pa ltra
czystego
4.2.1 Metal lter G2
G2 class metal cassette filters are filters for pre-cleaning
air from oily suspensions.
Metal filters are 48mm deep.
They are mounted in straight SR type guides in vertical or
diagonal position.
Self-adhesive seals for sealing are mounted on the walls
of the air handling unit housing at the point of filter ad-
hesion and between cassettes, if there are more filters.
Metal filters require rinsing in detergents (depending
on the type of pollution), rinsing with clean water and
drying.
4.2.2 Cassette Filter G4 and M5
G4/M5 cassette filters (panel filters) are fabric filters in
metal casing; they are designed for preliminary air treat-
ment.
Cassette filters are 50mm deep. They are mounted in
straight SR type guides.
Self-adhesive seals for sealing are mounted on the walls
of the air handling unit housing at the point of filter ad-
hesion and between cassettes, if there are more filters.
Cassette filters are not to be regenerated and must be
replaced with new ones.
The dimensions of the filters used are specified in the KT
certificate.
The factory transport safety devices sho-
uld be removed when the unit is seated at
the destination.