Trox Technik TFC Manual

Product overview
1
6
7
10
8
2
3
4
5
9
Fig. 1: Schematic illustration, e.g. TFC-SC-FT-0-ED-TDF
1 Casing
2 Fixing brackets
3 Spigot with lip seal
4 Internal measuring tube
5 Diffuser face
6 Clamping mechanism for the filter element
7 Clamping screws
8 Filter element
9 Filter fitting
10 Outside pressure measurement point
Installation and mainte-
nance manual GB/en
TFC
Ceiling mounted particulate filters
TROX GmbH
Heinrich-Trox-Platz
47504 Neukirchen-Vluyn
Germany
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Internet: http://www.trox-
technik.com
A00000048498, 12/2022, © 2015 TROX GmbH
TFC Ceiling mounted particulate filters 1

Important notes
Informationen zur Montageanleitung
Diese Anleitung ermöglicht den korrekten Einbau
sowie den sicheren und effizienten Umgang.
Das Personal muss diese Anleitung vor Beginn aller
Arbeiten sorgfältig durchgelesen und verstanden
haben. Grundvoraussetzung für sicheres Arbeiten
ist die Einhaltung aller angegebenen Sicherheit-
shinweise und Handlungsanweisungen in dieser
Anleitung.
Darüber hinaus gelten die örtlichen Unfallverhü-
tungsvorschriften und allgemeinen Sicherheitsbes-
timmungen für den Anwendungsbereich.
Correct use
Type TFC particulate filter air terminal devices are
used as final filters for the separation of suspended
particles, and for air distribution.
TFC can be used in supply air and extract air sys-
tems. They are suitable for the fitting of Mini Pleat
filter panels for the separation of suspended par-
ticles, 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 ceiling mounted particulate filter.
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.
Warranty claims
The provisions of the respective general delivery
terms apply to warranty claims. For purchase
orders placed with TROX GmbH, these are
the regulations in section "Vl. Warranty claims"
of the Delivery Terms of TROX GmbH, see
www.trox.de/en/.
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
allocated to them and in compliance with the rel-
evant guidelines, safety regulations and instruc-
tions. 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
TFC Ceiling mounted particulate filters2

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.
Skilled qualified electrician
Skilled qualified electricians are individuals who
have sufficient professional or technical training,
knowledge and actual experience to enable them to
work on electrical systems, understand any poten-
tial hazards related to the work under consideration,
and recognise and avoid any risks involved.
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
TFC Ceiling mounted particulate filters 3

Supply package, transport and storage
The supply package includes:
TFC 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 product only in its original packaging
Protect the product from the effects of weather
Protect the product from humidity, dust and
contamination
Storage temperature: -10 °C to 50 °C.
Relative humidity: 95% max., no condensation
Assembly
General information
Fix the unit only to load-bearing ceilings or sus-
pended 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.
Supply package, transport and storage
TFC Ceiling mounted particulate filters4

Personnel:
HVAC technician
Protective equipment:
Industrial safety helmet
Protective gloves
Safety shoes
TFC can weigh up to 38 kg, depending on the con-
struction. 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 a suspended
unit!
– 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. Push the clamping mechanism to the side
and lift it out upwards. Remove the clamping
mechanism (Fig. 1/4) and store it for further
use.
Suspension from the ceiling
②
③
①④
TFC-/.../S/..
TFC-/.../T/..
4 ×
Fig. 2: Suspension from fixing brackets
①Fixing bracket with drilled hole Ø 12 mm
②Threaded rod
③Lock nut
④Nut
2. If possible, install the device before fixing the
ceiling tiles; if this is not possible, remove
the adjacent ceiling tiles.
Fix any suspension elements, e.g. threaded
rods (Fig. 2/2), to the ceiling.
3. Start by suspending the TFC casing on three
suspension lugs (Fig. 2/1); ensure that the
casing is horizontal, fix the nuts accordingly
(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 TFC casing and secure it
with a locknut.
Assembly
TFC Ceiling mounted particulate filters 5

Fixing to the suspended ceiling
①
②
③
④
H
Fig. 3: Fixing to suspended ceiling, TFC-xx-FC with
suspended ceiling support (4 pieces)
1 Suspended ceiling
2 Levelling foot
3 Angle adjusting screw
4 Diffuser face
5. Note: The filter casing TFC is installed on
the suspended ceiling in the course of the
ceiling construction or subsequently above
the suspended ceiling. Subsequent installa-
tion or height adjustment in the finished sus-
pended ceiling, which is not accessible from
above, is not possible.
Measure the ceiling thickness (H) where the
filter casing is to be placed on the ceiling.
Pre-adjust the bracket and levelling foot
accordingly.
6. Place the filter casing at the installation loca-
tion and adjust it with the levelling foot.
When adjusting, make sure that all levelling
feet rest on the ceiling without wobbling.
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.
Assembly
TFC Ceiling mounted particulate filters6

Ceiling systems
Ceiling mounted particulate filters are usually installed in suspended ceilings. Installation in the most
common ceiling systems is shown below.
②
①
①
⑤
③
①
④
② ⑤
①
②
①
⑤
② ⑤
①
A
B
D
E
F
G
③
①
C
Fig. 4: TFC connection to suspended ceiling
A T-bar ceiling
B TFC-xx-CC-ED, clip-in tile ceiling
C TFC-xx-CC-ID, clip-in tile ceiling
D TFC-xx-ED, plasterboard ceiling
E TFC-xx-ID, plasterboard ceiling
F TFC-xx-ED, walk-on ceiling
G TFC-xx-AIRNAMIC, plasterboard ceiling
1 TFC filter casing
2 Diffuser face, ED position
3 Diffuser face, ID position
4 Diffuser face, AIRNAMIC-R
5 Seal
Assembly
TFC Ceiling mounted particulate filters 7

Connecting the ductwork
Type TFC ceiling mounted particulate filters are
available with various spigots:
Side entry circular spigot
Top entry circular spigot
Side entry rectangular spigot
Circular spigots are fitted with a lip seal and fit onto
circular ducts to 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.
Electrical connection
Connecting the electric actuator
Personnel:
Skilled qualified electrician
Supply voltage 24 to 240 V AC -20% to +10%
24 to 125 V DC ±10%
Power rating
(max.)
9.5 VA (AC)
6 W (DC)
Fig. 5: Wiring example
1 (BU) Blue
2 (BN) Brown
Connect devices with shut-off dampers and
electric actuator (TFC-SCE) as shown in the
connection example.
Connecting the ductwork
TFC Ceiling mounted particulate filters8

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 bal-
ancing for each ceiling mounted particulate filter.
Volume flow rate balancing is required before initial
commissioning.
Units with an optional volume flow limiter (TFC-
SCV): Once the volume flow rate has been set (by
others), it will be maintained (mechanical self-pow-
ered).
Units with an optional damper blade: Adjust the
damper blade to set the volume flow rate. You can
adjust the damper blade before you install or after
you remove the diffuser face and the filter element.
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.
①
②
③
④
⑤
⑥
⑥
⑦
⑧
④
Fig. 6: Inserting filters
1. Remove the clamping mechanism (Fig. 6/3)
from the HEPA filter housing.
NOTICE!
Do not damage the filter
Handle filter elements with care and hold them
only by the edges.
2. Set the filter element (Fig. 6/2) with the seal
(Fig. 6/1) facing upwards into the clamping
frame.
3. Insert the clamping mechanism with filter
into the casing so that the four supports
(Fig. 6/5) lock into the brackets (Fig. 6/7).
Commissioning
TFC Ceiling mounted particulate filters 9

4. Screw in the four clamping screws (Fig. 6/4)
evenly with an Allen key size 4 to press the
filter onto the filter holder (Fig. 6/8), 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 11.
6. Installing the diffuser face,
Ä ‘Installing the
diffuser face’ on page 10.
Installing the diffuser face
①
②
③
④
Fig. 7: Installing the diffuser face
1. If the diffuser face has been supplied with a
separate seal, glue the seal onto the back of
the diffuser face.
2. Set the diffuser face (Fig. 7/3) onto the
filter casing and fix it with the central fixing
screw (Fig. 7/2). In the process, the central
fixing screw can simply be inserted into the
holding fixture (Fig. 7/4).
3. Put the decorative cap (Fig. 7/1) on the cen-
tral fixing screw.
PCD diffuser face (PROCONDIF)
Turn the clamping screw M6 × 70 with the
washer 6.4 × 20× 1.5 into the clamping
frame (A) and tighten it; then fix the
spacer (tube) with an M6 nut to the
threaded part.
For diffuser face type PCD (PROCONDIF):
Insert the central honeycomb.
CAUTION!
Risk of injury from a falling diffuser
face!
Ensure that the diffuser face is correctly
seated and secured.
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 so that you can anticipate any
defects or problems before they actually occur.
Maintenance
TFC Ceiling mounted particulate filters10

Replace the filter immediately if any of the following
is true:
The reaching of the intended final differential
pressure
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.
①
②
③
④
Fig. 8: Removing the diffuser face
1. Remove the decorative cap (Fig. 8/1) from
the diffuser face (Fig. 8/3). For diffuser face
type PCD (PROCONDIF): Remove the cen-
tral honeycomb.
2. Remove the central fixing screw (Fig. 8/2)
and then the diffuser face.
Leakage test on an installed filter
A leakage test is used as a functional test of the
filter system to ensure that there are no leaks and
that the filter element is without any defects (no
small holes on the filter frame or on the seal, no
leaks at the filter frame).
② ②
③
①
Fig. 9: Measuring tube and aerosol feed
1 Measuring tube for raw air side measurement
2 Sealing cap
3 Aerosol feed
Leakage test due to particle measurement
1. Remove the diffuser face,
Ä ‘Removing the
diffuser face’ on page 11.
2. Open the measuring tube by removing the
sealing cap.
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 putting the
sealing cap into place.
6. Reinstall the diffuser face.
Maintenance
TFC Ceiling mounted particulate filters 11

Leakage test by means of aerosol feed
1. Remove the diffuser face,
Ä ‘Removing the
diffuser face’ on page 11.
2. Open the aerosol feed by removing the
sealing cap.
3. Feed the test aerosol.
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 aerosol feed by putting the sealing
cap into place.
6. Reinstall the diffuser face.
Sealing integrity test (option: FT or FTL)
Fig. 10: Sealing integrity test
Filter casings (option: FT or FTL) have a device for
leakage testing. Sealing integrity is tested with a
sealing integrity test device (see operating manual).
1. Connect the sealing integrity test device
(Fig. 10/3) to the connection point on the
filter (Fig. 10/2).
2. Apply at least 2000 Pa to the test groove
(Fig. 10/1).
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.
Maintenance
TFC Ceiling mounted particulate filters12

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. 11/1), e.g.
TROX MD-UT, MD-APC or MD-DPC, using the
pressure measurement points (Fig. 11/2) at the side
or on the top of the casing.
Fig. 11: 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. 11/2). For this, you have to remove the diffuser
face,
Ä 11.
Connecting a mobile measuring device
Plus (+) - to the internal measuring tube
(Fig. 11/2)
Minus (–) - Don't connect; the differential pressure
is measured against the room pres-
sure.
Changing the filter
Personnel:
Properly trained person
Protective equipment:
Industrial safety helmet
Light respiratory protection
Protective gloves
④
②
①
③
①
Fig. 12: Filter change
Before you start changing filters, switch off the ven-
tilation and air conditioning system, or close the
shut-off damper (if any) on TFC.
1. Remove the diffuser face,
Ä ‘Removing the
diffuser face’ on page 11.
2. Remove the clamping frame. To do so,
loosen the four clamping screws (Fig. 12/1)
(hexagon socket size 4). Lift the clamping
mechanism (Fig. 12/2) out of the brackets
(Fig. 12/3). Then remove it downwards.
3. Remove the dust-laden filter (Fig. 12/4) from
the clamping frame, and put it into a plastic
bag and dispose of it properly; see
Ä ‘Dis-
posal ’ on page 14.
4. If the filter casing is dirty, clean
and disinfect it, Ä ‘Cleaning the filter
casing’ on page 14.
Maintenance
TFC Ceiling mounted particulate filters 13

5. Insert a new filter element, and reinstall the
clamping frame and the diffuser face; see
Ä ‘Inserting filters’ on page 9.
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 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 replacement fil-
ters: https://www.trox.de/onlineshop/filtergeraete-
und-filterelemente-1df986693c21980d
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
TFC Ceiling mounted particulate filters14