Trox Technik TFM Manual

Product overview
Fig. 1: Schematic illustration, e. g. TFM
①Spigot with lip seal
②Casing
③Internal measuring tube
④Suspension
⑤Pressure measurement point
⑥Bracket for tensioning frame
⑦Test groove
⑧Filter
⑨Clamping frame for the filter element
⑩Clamping screw
⑪Diffuser face
⑫Screw fixing diffuser face
⑬Sealing plug for connecting holes
Installation and maintenance
manual GB/en
TFM
Particulate filter modules for ceilings
TROX GmbH
Heinrich-Trox-Platz
47504 Neukirchen-Vluyn,
Ger-many
Germany
Phone: [phone]
Fax: [phone] E-
mail: [email protected] Internet:
http://www.trox-technik.com
A00000072700, 02/2019, © 2015 TROX GmbH
TFM Particulate filter modules for ceilings 1

Important notes
Information on the installation manual
This manual enables operating or service personnel
to correctly install the product described below and
to use it safely and efficiently.
It is essential that these individuals read and fully
understand this manual before starting any work.
The basic prerequisite for safe working is to comply
with the safety notes and all instructions in this
manual.
The local regulations for health and safety at work
and general safety regulations also apply.
Correct use
Type TFM particulate filter module for ceilings is
used as a final filter for the separation of suspended
particles and for air distribution.
The TFM can be used in the supply air and extract
air systems of ventilation and air conditioning sys-
tems. They are suitable for the fitting of Mini Pleat
filter panels for the separation of suspended parti-
cles, to ensure critical air cleanliness and meet
demanding hygiene requirements.
It is important that you comply with any national
hygiene regulations when you install, commission
or use the particulate filter module.
Incorrect use
WARNING!
Danger due to incorrect use!
Incorrect use of the unit can lead to dangerous
situations.
Never use the unit:
–in areas with potentially explosive atmos-
pheres
– in humid rooms
– in rooms with aggressive or dust-laden air
Limitation of liability
The information in this manual has been compiled
with reference to the applicable standards and
guidelines, the state of the art, and our expertise
and experience of many years.
The manufacturer does not accept any liability for
damages resulting from:
Non-compliance with this manual
Incorrect use
Operation or handling by untrained individuals
Unauthorised modifications
Technical changes
Use of non-approved replacement parts
The actual scope of delivery may differ from the
information in this manual for bespoke construc-
tions, additional order options or as a result of
recent technical changes.
The obligations agreed in the order, the general
terms and conditions, the manufacturer's terms of
delivery, and the legal regulations in effect at the
time the contract is signed shall apply.
We reserve the right to make technical changes.
Defects liability
For details regarding defects liability please refer to
Section VI, Warranty Claims, of the Delivery and
Payment Terms of TROX GmbH.
The Delivery and Payment Terms of TROX GmbH
are available at www.troxtechnik.com.
Qualified staff
HVAC technician
HVAC technicians are individuals who have suffi-
cient professional or technical training in the field
they are working in to enable them to carry out their
assigned duties at the level of responsibility allo-
cated to them and in compliance with the relevant
guidelines, safety regulations and instructions.
HVAC technicians are individuals who have in-
depth knowledge and skills related to HVAC sys-
tems; they are also responsible for the professional
completion of the work under consideration.
Important notes
TFM Particulate filter modules for ceilings2

HVAC technicians are individuals who have suffi-
cient professional or technical training, knowledge
and actual experience to enable them to work on
HVAC systems, understand any potential hazards
related to the work under consideration, and recog-
nise and avoid any risks involved.
Properly trained person
Properly trained persons are trained individuals who
understand any potential hazards related to the
work under consideration, and who recognise and
avoid any risks involved. Training is provided by the
HVAC contractor when the system is handed over.
Properly trained persons are responsible for
cleaning the unit, and for carrying out functional
tests, regular checks and smaller adjustments.
Personal protective equipment
Personal protective equipment must be worn for
any work in order to reduce health or safety haz-
ards to the minimum.
The appropriate protective equipment for a job must
be worn for as long as the job takes.
Industrial safety helmet
Industrial safety helmets protect the head from
falling objects, suspended loads, and the effects of
striking the head against stationary objects.
Light respiratory protection
Light respiratory protection is used to provide pro-
tection from harmful dusts.
Protective gloves
Protective gloves protect hands from friction, abra-
sions, punctures, deep cuts, and direct contact with
hot surfaces.
Safety shoes
Safety shoes protect the feet from crushing, falling
parts and prevent slipping on a slippery floor.
Important notes
TFM Particulate filter modules for ceilings 3

Supply package, transport and storage
The supply package for the particulate filter module
includes:
TFM casing
Diffuser face
Filter element (optional)
Transport
CAUTION!
Danger of injury from sharp edges, sharp cor-
ners and thin sheet metal parts!
Sharp edges, sharp corners and thin sheet metal
parts may cause cuts or grazes.
– Be careful when carrying out any work.
–Wear protective gloves, safety shoes and a
hard hat.
Use only lifting and transport gear designed for the
required load. Always secure the load against tip-
ping and falling.
Upon delivery, carefully remove the packaging and
check the unit for transport damage and complete-
ness.
Storage
Please note:
Store the unit only in its original packaging
Protect the unit from the effects of weather
Protect the unit from humidity, dust and con-
tamination
Storage temperature: -10 °C to 50 °C.
Relative humidity: 95 % max., no condensation
Assembly
General information
Fix the unit only to load-bearing ceilings.
Load suspension systems only with the weight
of the unit. Adjacent components and con-
necting ducts must be supported separately.
Do not unpack the diffuser face and any filter
element until you are ready to install them.
NOTICE!
Possible malfunction due to a damaged
casing
If the casing has been damaged, unfiltered (con-
taminated) air may leak.
Do not drill any holes into the casing.
If there is a lengthy break between installation
and commissioning, cover all openings of the
casing (e.g. with plastic) to protect the interior
and avoid cumbersome cleaning procedures at
the time of commissioning.
Supply package, transport and storage
TFM Particulate filter modules for ceilings4

Fixing to the ceiling slab
Personnel:
HVAC technician
Protective equipment:
Industrial safety helmet
Protective gloves
Safety shoes
If possible, install the device before fixing the ceiling
tiles; if this is not possible, remove the adjacent
ceiling tiles.
The TFM can weigh up to 35 kg, depending on the
construction. Use only approved and adequately
sized suspension systems. Fixing material is not
included in the supply package.
Only work in pairs; preferably use a lift.
DANGER!
Danger of death from the fall of suspended
loads!
– Only use fixing materials designed for the
required load.
–Use all hanging brackets supplied.
– Stand clear of suspended loads, unless
properly secured.
– Check secure fixing after installation.
1. Remove the clamping frame from the
casing. To do so, loosen the clamping
screws (Fig. 1/5), then remove the clamping
frame (Fig. 1/4). Remove and dispose of the
spacers; keep the clamping frame as you
will need it again later.
Fig. 2: Fixing
①Suspension lug with drilled hole ∅ 12 mm
②Threaded rod
③Lock nut
④Nut
2. Fix any suspension elements, e.g. threaded
rods (Fig. 2/2), to the ceiling.
3. Start by suspending the TFM casing on
three suspension lugs (Fig. 2/1); ensure that
the casing is horizontal, fix the nuts accord-
ingly (Fig. 2/4), then use the locknuts
(Fig. 2/3) to secure the suspended casing.
Loads imposed on the casing may impair
the function of the unit. Be sure to install the
unit without torsion.
4. Fix the fourth threaded rod without changing
the position of the TFM casing and secure it
with a locknut.
Assembly
TFM Particulate filter modules for ceilings 5

Connecting to a ceiling tile
Fig. 3: TFM ceiling tile assembly
①Screw M8, U-discs (2x) and nut
②Screw M8, sealing washer (2x), U-discs (2x)
and nut
③Sealing plug
TFM modules can be connected underneath each
other to a ceiling tile For this, the modules are
screwed with screw connections, accessories of
assembly kit article no. A00000067468.
Note: At suspension points where several ceiling
modules (2...4) are connected with one another,
these can be fixed to the ceiling slab with just one
suspension system as long as the modules were
connected with one another correctly. However, the
increased load on the suspension system must be
taken into account.
1. Remove the sealing plug on the connecting
sides of both modules.
2. Install the other casing in accordance with
steps 1-4 beside the first casing.
3. Screw the module to the casing and the sus-
pension system using the optional assembly
kit.
Ceiling systems
Particulate filter modules are usually installed in
suspended ceilings. The flush connection to a
ceiling slab is shown below.
Fig. 4: Flush installation in continuous ceilings
①TFM casing
②Seal
③Diffuser face
④Plasterboard ceiling
Assembly
TFM Particulate filter modules for ceilings6

Connecting the ductwork
Type TFM particulate filter modules for ceilings are
supplied with different spigots as follows:
Top entry circular spigot
The spigot has a lip seal and is suitable for circular
ducting in accordance with EN 1506 or EN 13180.
Connect the duct in such a way that the connection
is tight.
To protect the filter elements once installed as much
as possible from excessive contamination, proceed
as follows when you install the ventilation system:
Keep the ducts clean when you install them.
If you have to interrupt the installation proce-
dure, protect all openings from the ingress of
dust.
If necessary, clean the ducts before you com-
mission the ventilation system.
Commissioning
General information
Before you start commissioning:
Check that the filter casings are correctly
seated.
Remove protective film, if any.
Ensure that all filter casings are clean and free
from residues and foreign matter.
Prime the ventilation and air conditioning
system for 24 hours before you insert the filter
element.
Volume flow rate balancing
To adjust the ventilation and air conditioning
system, you first have to carry out volume flow rate
balancing for each particulate filter module. Volume
flow rate balancing is required before initial commis-
sioning.
Inserting filters
Do not unpack filter elements until you are
ready to install them.
Do not touch the filter, hold it by the edge only.
Check filter elements for any damage; replace
damaged filter elements.
Insert only suitable Mini Pleat filter elements
with a flat seal or fluid seal.
Fig. 5: Inserting filters
1. Remove the clamping frame (Fig. 5/3) from
the particulate filter module. To do so,
loosen the clamping screws (Fig. 5/4), then
press the release buttons (Fig. 5/5) in;
remove spacers, if any (spacers are used to
fix the clamping frame during transport of
the unit).
NOTICE!
Do not damage the filter.
Handle filter elements with care and hold them
only by the edges.
2. Set the filter element (Fig. 5/2) with the seal
(Fig. 5/1) facing upwards into the clamping
frame.
Connecting the ductwork
TFM Particulate filter modules for ceilings 7

3. Push the clamping frame with the filter ele-
ment into the casing. Ensure that the
release buttons snap into the recesses on
both sides (Fig. 5/6).
4. Turn in the clamping screws evenly so that
the filter is pressed against the test groove
(Fig. 5/7); max. torque 2 Nm.
5. Once you have inserted the filter element,
check that there are no leaks,
Ä ‘Leakage
test on an installed filter’ on page 9.
6. Installing the diffuser face.
Installing the diffuser face
Fig. 6: TFM assembly diffuser face
Set the diffuser face (Fig. 6/1) onto the filter
casing and fix it with the knurled screws
(Fig. 6/2).
CAUTION!
Risk of injury from a falling diffuser
face!
Ensure that the diffuser face is correctly
seated and secured.
Commissioning
TFM Particulate filter modules for ceilings8

Maintenance
Maintenance applies mainly to the filter element.
Check the filter regularly and replace it, if neces-
sary.
The service life of a filter depends mainly on how
polluted the air is. Check the filter in intervals that
are short enough such that you can anticipate any
defects or problems before they actually occur.
Replace the filter immediately if any of the following
is true:
The defined final differential pressure has been
reached.
Hygiene problems (micro-organisms, fungal
spores, odours, etc.)
Filter defects (particle count has been
exceeded)
The maximum filter usage time has been
reached (8 years, to VDI 3803, part 4).
You may replace a filter even before the defined
final differential pressure has been reached if it is
more economic.
Removing the diffuser face
Some maintenance jobs, such as sealing integrity
testing, leakage testing, filter changes or cleaning,
require you to remove the diffuser face.
Fig. 7: Removing the diffuser face
Unscrew the knurled screws (Fig. 7/2) and
remove diffuser face (Fig. 7/1).
Leakage test on an installed filter
A functional test of the filter system is required to
ensure that there are no leaks and that the filter ele-
ment is without any defects (no small holes on the
filter frame or on the seal, no leaks at the filter
frame).
1. Remove the diffuser face,
Ä ‘Removing the
diffuser face’ on page 9.
Fig. 8: Measuring tube
①Measuring tube ∅ 8 × 1.5 mm
2. Open the measuring tube by removing the
cheese head screw.
3. Measure the particle concentration on the
upstream side to ISO 14644-3 B6.
4. Measure the particle concentration on the
downstream side to ISO 14644-3 B6.
If there is a leak, seal it; then test for leak-
ages again.
5. Close the measuring tube by inserting the
cheese head screw.
6. Re-install the diffuser face.
Maintenance
TFM Particulate filter modules for ceilings 9

Sealing integrity test
Fig. 9: Sealing integrity test
The casing is fitted with a sealing integrity test
facility. Sealing integrity is tested with a sealing
integrity test device (see operating manual).
1. Connect the sealing integrity test device
(Fig. 9/3) to the connection point on the filter
(Fig. 9/2).
2. Apply at least 2000 Pa to the test groove
(Fig. 9/1).
3. Check the leakage rate on the flow rate
meter of the sealing integrity test device.
ðThe value must not exceed 0.003% of
the nominal volume flow rate.
If this value is exceeded, adjust the clamping
screws or the clamping frame; also check the seal,
test groove and filter element for damage. Then
repeat the sealing integrity test.
Differential pressure measurement
The initial differential pressure for TROX filters is
given on the label on the filter frame.
There are two ways to measure the differential
pressure:
Permanent measurement: Continuous differential
pressure measurement and monitoring of the final
differential pressure. This is done with a static differ-
ential pressure measuring device (Fig. 10/1), e.g.
TROX MD-UT, MD-APC or MD-DPC, using the
pressure measurement points (Fig. 10/2) at the side
or on the top of the casing.
Fig. 10: TROX MD-DPC connection
Connecting a stationary measuring device
Plus (+) - to the 'Plus' measurement point (+)
Minus (–) - to the 'Minus' measurement point (–)
Temporary measurement: Temporary differential
pressure measurement with a mobile measurement
device connected to the internal measuring tube
(Fig. 10). For this, you have to remove the diffuser
face,
Ä 9.
Connecting a mobile measuring device
Plus (+) - to the internal measuring tube
(Fig. 8/1)
Minus (–) - Don't connect; the differential pressure
is measured against the room pres-
sure.
Re-attach the plugs (Fig. 10/3) after the measure-
ment.
Maintenance
TFM Particulate filter modules for ceilings10

Changing the filter
Personnel:
Properly trained person
Protective equipment:
Industrial safety helmet
Light respiratory protection
Protective gloves
Fig. 11: Filter change
Before you start changing filters, switch off the air
conditioning system.
1. Remove the diffuser face,
Ä ‘Removing the
diffuser face’ on page 9.
2. Remove the clamping frame. To do so,
loosen the clamping screws (Fig. 11/3) and
press the release buttons (Fig. 11/2) in.
Remove the clamping frame (Fig. 11/4) with
the filter element.
3. Remove the dust-laden filter (Fig. 11/1) from
the clamping frame, put it into a plastic bag
and dispose of it properly, see
Ä ‘Disposal ’
on page 11.
4. If the filter casing is dirty, clean and disinfect
it
Ä ‘Cleaning the filter casing’ on page 12.
5. Insert a new filter element, reinstall the
clamping frame including the filter, and fix
the diffuser face again, see
Ä Chapter
6 ‘Commissioning’ on page 7.
Disposal
ENVIRONMENT!
Risk of harm to the environment due to the incor-
rect handling of hazardous materials and sub-
stances.
Filters and cleaning materials that have been
contaminated with bacterial, toxic or radioactive
particles are considered hazardous waste and
have to be disposed of by an authorised business
in compliance with local regulations.
Disposing of filter elements with household waste is
allowed only in the following cases:
For unused filter elements
For filter elements that have been exposed
only to atmospheric outdoor air
Ordering replacement filters
To ensure permanent protection from particulate
matter and other pollutants we recommend using
only original TROX filters.
Original TROX filters carry a sticker on the frame
with both the use before date and information on
how to order replacements.
To avoid downtime of the ventilation and air con-
ditioning system, we recommend you to always
have the required filters in stock.
To order filters go to: www.troxtechnik.com
Maintenance
TFM Particulate filter modules for ceilings 11

Cleaning the filter casing
Personnel:
Properly trained person
Protective equipment:
Light respiratory protection
It is usually not possible to regularly clean and dis-
infect the ductwork between the second filter stage
and the filter casing, and neither is it required for
hygienic reasons. As a prerequisite, however, you
have to keep the ducts clean during installation.
It is then sufficient to clean and disinfect (wipe) the
filter casing and the diffuser face; this has to be
done for the first time just before the ventilation and
air conditioning system is switched on for the first
time.
The casing may be cleaned with a damp cloth.
Sticky dirt or contamination may be removed with a
commercial, non-aggressive cleaning agent.
Cleaning agents that contain chlorine must not be
used.
Once you have completed cleaning, disinfect the
filter casing and any connecting rooms.
Maintenance
TFM Particulate filter modules for ceilings12