TECE TECEbox 8 cm Instruction Manual

5-1
TECEbox 8 cm
TECEbox 8 cm
Sanitary systems
TECHNICAL GUIDELINES

5-2
Contents
TECEbox 8 cm
System description 5-3
Toilet module product range 5-3
Cistern 8 cm 5-4
Filling valve F 1 5-4
Drain valve A 3 5-5
Setting the flush volumes 5-5
Throttle set 5-6
Upgrade sets for TECEone 5-7
Initial operation of the cistern 5-8
TECEbox basic 5-9
Assembly in the wall 5-9
TECEbox toilet module 5-10
Assembly in the wall 5-10
Assembly in front of a solid wall 5-11
TECEbox plus toilet module 5-12
Assembly in the wall 5-12
Assembly in front of a solid wall 5-13
TECEbox toilet module 5-15
Assembly in front of a wall 5-15
Assembly with a frame 5-15
Repairing the cistern 5-16
TECEbox washstand and bidet 5-17
Assembly for washstand and bidet modules 5-18
TECEbox urinal flush valve housing 5-19
Assembly of TECEbox urinal flush valve housing 5-19
Toilet flush plates 5-21

5-3
TECEbox  cm – System description
TECEbox 8 cm
System description
TECE oers modules for the TECEbox range with an
installation depth of 8 cm that are particularly suitable for
a market dominated by thin partition walls. The system
comprises toilet modules with cisterns for floor-standing or
wall-hanging toilets as well as modules for bidets, wash-
stands and urinals. The TECEbox 8 cm toilet modules with
cisterns can be combined both with the installation sys-
tems for brick-wall construction (TECEbox basic, TECEbox
and TECEbox plus) as well for dry-wall construction (TECE-
box module).
The TECE cisterns can be used with all manual TECE flush
plates as well as single and dual-flush systems.
Toilet module product range
The TECEbox basic brick-wall-mounted cistern for
floor-standing toilets is the starting point for solutions utilis-
ing wall-hanging toilets.
TECEbox basic brick-wall-mounted cistern, depth  cm (order no. )
The TECEbox brick-wall-mounted cistern for wall-hanging
toilets comes with an external aluminium frame that guar-
antees secure wall attachment and ensures that the toilet
is anchored securely.
TECEbox brick-wall-mounted cistern, depth  cm (order no. )
The TECEbox plus brick-wall-mounted cistern has the
same properties as the TECEbox cistern, however the first
section of the drain is insulated against noise with rock
wool and fibre-cement plates on both sides.
TECEbox plus brick-wall-mounted cistern, depth  cm (order no. )
The set with assembly feet (optional) makes installation
easy and allows the TECEbox and TECEbox plus modules
for wall-hanging toilets to be adjusted in height.
TECEbox assembly feet set (order no. )
The TECEbox module can be installed in lightweight par-
tition walls with a metal or wooden frame or as an inde-
pendent module in front of a brick wall.
TECEbox toilet module with  cm cistern (order number )

5-4
TECEbox  cm – Cistern
TECEbox 8 cm
Cistern  cm
The concealed cistern from TECE is a universally adapt-
able 8 cm cistern. By using dierent frames, the cistern can
be installed in dry or brick-wall constructions. The TECE
cistern is always equipped with the same internal technol-
ogy inside and is therefore compatible with toilet fittings
and all manual TECE flush plates. Due to the cistern's
universal nature, there is a clearly organised range and
storage and the supply of spare parts is straightforward.
Properties of the cistern:
• Pre-assembled and sealed
• Can be combined with all manual TECE flush plates
• Single or dual-flush technology available
• Robust lever mechanism
• 9.5-litre safety tank: enough water when needed
• Compatible with standard market spare parts
• Cistern connection with ½” internal thread
• 6-litre pre-set standard flush volume
• 4.5 / 6 and 9-litre flush volume can be set as an option at
any time,
• 3-litre part-flush with dual-flush system,
• Cistern tank made of impact-resistant plastic and insu-
lated against condensation water
• Easy to install
• Self-explanatory technology
TECE cistern with:
1. Corner valve
2. Reinforced hose
3. Filling valve F 1 with standard connection 3/8“
4. Filling valve holder
5. Drain valve A 3
6. Valve seat of drain valve
7. Reinforcements
Filling valve F 
Thanks to the high technical quality standard of the filling
system (valve, hose and F1 valve) the TECE cistern is char-
acterised by the lowest sound level on the market -
Lap ≤ 17 dB(A).
Intake and filling valve F 
Setting the fill level
The fill level in the cistern can be set by turning the adjust-
ment spindle on the filling valve.
The height should be set so that the water reaches the
upper mark on the overflow and the mark on the actuation
block (see figure).
1
2
3
4
5
6
7

5-5
TECEbox  cm – Brick-wall toilet module
TECEbox 8 cm
Drain valve A 
The drain valve A 3 is installed exclusively in the 8 cm
cistern.
Drain valve A 3 (order number 9820224) with
1. Connecting rod large
2. Connecting rod small
3. Sliding lever for flush volume
4. Gasket
Dual-flush technology
During everyday use, a considerable amount of drinking
water is used to flush toilets. The intelligent solution from
TECE goes a long way towards saving water. With dual-
flush technology the small flush volume is set to 3 litres
and the large flush volume can be set to 4.5 / 6 or 9 litres.
The default setting for the dual-volume flush is 6 litres
for the large flush volume and 3 litres for the small flush
volume
Single-flush technology
Single-flush technology is also possible with the cistern
and TECE drain valve. However, with this flush option, only
the large flush volumes of 4.5 / 6 or 9 litres are available.
General
Due to the easily adjustable drainage valve settings, the
flush volumes can be adapted to each specific situation.
In the new builds with custom pipes, gradients and using
a 4.5 litre ceramic, it is possible to have a 4.5 litre saving
flush in combination with a 3 litre flush.
However, pipework systems are often installed which need
a larger flush volume to ensure that they work correctly. In
this case, flush volumes of up to 9 litres can be chosen to
ensure this.
4,5
6
9
Setting the flush volumes
Adjusting the flush volume is performed centrally using a
sliding lever, which is located on the side of the main part
of the drainage valve. The flush volumes which can be set
are clearly marked on the valve.
The large flush volume can be set to 4.5 / 6.0 or 9.0 litres.
The default setting is 6 litres. To change the large flush
volume the drainage valve must be removed from the cis-
tern. To do this, the splash guard and the actuation block
must be removed. Then the drainage valve can be taken
out of the cistern. The sliding lever is located on the side of
the main part of the drainage valve. Move the sliding lever
to the desired flush volume. This increases or decreases
the flush volume.
This does not change the small flush volume and it
remains set to 3 litres.
4,5
6
9
4,5
6
9
4,5
6
9
4,5
6
9
4,5 L
6 L
9 L

5-6
TECEbox  cm – Brick-wall toilet module
TECEbox 8 cm
Throttle set
Problems with toilets not flushing correctly can be solved
by using a throttle set.
The throttle set includes four dierent throttles:
• Blue: Diameter 32 mm (100%)
• Grey: Diameter 30 mm (90%)
• Black: Diameter 29 mm (80%)
• White: Diameter 28 mm (70%)
Reducing the flushing pressure
To prevent overspray by the toilet ceramics, the flush flow
can be reduced using a throttle set. To control the flushing
pressure, a throttle with a smaller internal diameter can be
used.
Increasing the flushing pressure
If a toilet ceramic is not being correctly cleaned then the
flushing pressure for 8 cm cistern can be subsequently
increased. To increase the flushing pressure, install a throt-
tle with a larger internal diameter or remove the inserted
throttle.
The flush flow throttle can be easily installed in the valve
seat of the drainage valve.
Ø 28 mmØ 29 mmØ 30 mmØ 32 mm
To reduce the default large volume to 4.0 and the small
volume to 2.5 litres, the tank water level lever above the
filling valve must also be moved to the lowest mark on the
overflow.
Removing the drainage valve
Totake outthe filling valve open the splash guard with the
actuation block. Press the hold-down device downwards
as shown in the diagram and remove it from the tank. Now
pull the filling valve upwards out of the valve seat, snap o
the top part and take it out.
After removing the drainage valve, the valve seat can be
removed by pulling it upwards.

5-7
TECEbox  cm – Toilet module
TECEbox 8 cm
Upgrade sets for TECEone
Upgrade sets are available to combine wall-mounted
TECEone shower toilets with a brick-wallmodule or toilet
module.
Upgrade set for TECEbox 8 cm brick-wall-mounted cistern
TECEone upgrade set for brick-wall construction - order number 9880048
The shell installation set consists of:
• Holding plate for hot and cold water connections
• Sound-proofing elements for two wall disks
• Mounting materials
The holding plate is attached to both elbow brackets using
the screws supplied.
70 70
159 61
PWC
kalt
cold
froid
frio
freddo
zimna
холодный
PWH
warm
hot
chaud
caliente
caldo
ciepła
теплый
Upgrade set for TECEbox 8 cm dry-wall module
TECEone upgrade set for dry-wall construction - order number 9880056
The shell installation set consists of:
• Holding plate for hot and cold water connections
• Sound-proofing elements for two wall disks
• Mounting materials
The holding plate is mounted to the bottom of the module
frame using the existing drain bend holder.
70 70
159 61
OKFF
220
320
PWC
kalt
cold
froid
frio
freddo
zimna
холодный
PWH
warm
hot
chaud
caliente
caldo
ciepła
теплый

5-8
TECEbox  cm – Toilet module
TECEbox 8 cm
Initial operation of the cistern
Shell construction stage
The corner valve of the TECE 8 cm cistern is closed and
pre-installed as a complete unit. The pressure can be
tested without the cistern needing to be opened. The
cistern only needs to be opened during the fine installa-
tion phase. During the shell construction stage, the cistern
remains sealed. An unbroken seal during fine installation
work guarantees that the cistern is clean and functional.
A damaged seal shows that the cistern has already been
opened.
Splash guard with seal.
Fine installation
The TECE 8 cm cistern can only be opened by destroying
the seal on the splash guard. If the seal is intact at the fine
installation stage, the inner workings of the cistern are
intact and free of contamination. The connection lead must
be well flushed out during commissioning of the concealed
cistern. To do this, the hose in the cistern can be pressed
downwards. After being flushed out, the reinforced hose
can be screwed to the filling valve without the need for any
tools.
Connect the hose to the cistern filling valve.
A special feature of the TECE concealed cistern is the
actuation block mounted on the splash guard. When the
concealed cistern is opened, it is completely removed.
This also works with the support frame for the actuation.
Splash guard with actuation block
Service
Despite the small inspection opening there is ample space
to work within the cistern. After removing the flush-plate
cover, the flush-plate installation frame including the splash
guard can be removed as one unit using a flat-head screw-
driver.
Removing the compact unit.
This approach is easy and saves time because it avoids
laborious disassembly of individual components.

5-9
TECEbox  cm – Toilet module
TECEbox 8 cm
TECEbox basic
Toilet module with cistern, ideal for floor-standing toilets
and compatible with all manual TECE flush plates (exclud-
ing the flush plates with IR sensor).
Only for installation in a bricked-in wall.
Assembly in the wall
Create a niche in the wall according to the dimensions
specified.
If the flush pipe (made of PE) is too long for the arrange-
ment, it must be removed from the cistern and cut to
length (maximum 120 mm).
By contrast, if a flush pipe must be extended for a cistern
exceeding the standard dimensions, this can be extended
using via hot welding on an additional pipe.
Place the module in the niche, make sure it is level and
attach it using perforated rails as shown in the following
diagram.
Attach the water connection (connection R 1/2“ on the
cistern) and then assemble both the polystyrene bare-wall
protection and the drainage cover. Brick the module in
completely. Fill all cavities and attach the metal mesh.
Plaster and tile the wall.

5-10
TECEbox  cm – Upgrade sets
TECEbox 8 cm
The wall construction must be at least 18 mm if the actu-
ation is located on the wall (A). A minimum of 30 mm is
required to install the TECEsquare II (B) and when using
the flush-mounted installation frame (C).
min. 18 mm min. 30 mm min. 30 mm
A
ABC
TECEbox toilet module
Toilet module with cistern, ideal for wall-hanging toilets and
compatible with all TECE flush plates (excluding the TECE-
planus flush plates with IR sensor).
For installation in a brick wall or in front of a solid wall.
Assembly in the wall
Create a niche in the wall according to the dimensions
specified.
Place the module in the niche and attach the water con-
nection (connection R 1/2“ on cistern). Install the polysty-
rene bare-wall protection, the threaded rods and the odour
traps. Make sure the module is level and brick it in com-
pletely. Fill all cavities as you do this.

5-11
TECEbox  cm – Cistern
TECEbox 8 cm
Attach the metal mesh, then plaster and tile the wall.
The wall construction must be at least 18 mm if the actu-
ation is located on the wall (A). A minimum of 30 mm is
required to install the TECEsquare II (B) and when using
the flush-mounted installation frame (C).
min. 18 mm min. 30 mm min. 30 mm
A
ABC
Assembly in front of a solid wall
Create a small cavity at least 5 mm deep behind the flush
pipe so that the cistern lies full against the wall. Make sure
the TECEbox module is level, open the wings on the side
of the aluminium frame and attach the module to the wall.
Attach the water connection (connection R 1/2“ on cistern).
Brick the module in completely and follow the outline.
Install the polystyrene bare-wall protection, the threaded
rods and the odour traps.
Fill all cavities and attach the metal mesh (see diagram).

5-12
TECEbox  cm – Filling valve
TECEbox 8 cm
Plaster and tile the wall.
The wall construction must be at least 18 mm if the actu-
ation is located on the wall (A). A minimum of 30 mm is
required to install the TECEsquare II (B) and when using
the flush-mounted installation frame (C).
min. 18 mm min. 30 mm min. 30 mm
A
ABC
TECEbox plus toilet module
Toilet module with sound-insulated cistern, ideal for
wall-hanging toilets and compatible with all TECE flush
plates (excluding the TECEplanus flush plates with IR
sensor). To insulate the cistern against noise, the flush pipe
housing is filled with rock wool and enclosed by 12.5 mm
thick fibre-cement plates on both sides.
The TECEbox plus module can be installed in a brick wall
or in front of a solid wall.
Assembly in the wall
Create a niche in the wall according to the dimensions
specified.
Clad the flush pipe with the adhesive insulation tape sup-
plied in the packaging.

5-13
TECEbox  cm – Drain valve
TECEbox 8 cm
The wall construction must be at least 18 mm if the actu-
ation is located on the wall (A). A minimum of 30 mm is
required to install the TECEsquare II (B) and when using
the flush-mounted installation frame (C).
Assembly in front of a solid wall
Clad the flush pipe with the adhesive insulation tape sup-
plied in the packaging.
Remove the rear sound insulation plate.
Create a small cavity at least 5 mm deep behind the flush
pipe so that the cistern lies full against the wall. Make sure
the TECEbox module is level, open the wings on the side
of the aluminium frame and attach the module to the wall.
min. 18 mm min. 30 mm min. 30 mm
A
ABC
Place the module in the nice and attach the water connec-
tion (connection R 1/2“ on the cistern).
Install the polystyrene bare-wall protection, the threaded
rods and the odour traps. Make sure the module is level
and brick it in completely. Fill all cavities as you do this.
Attach the metal mesh, then plaster and tile the wall.

5-14
TECEbox  cm – Drain valve
TECEbox 8 cm
Attach the water connection (connection R 1/2“ on cistern).
Brick the module in completely and follow the outline.
Install the polystyrene bare-wall protection, the threaded
rods and the odour traps.
Fill all cavities and attach the metal mesh (see diagram).
Plaster and tile the wall.
The wall construction must be at least 18 mm if the actu-
ation is located on the wall (A). A minimum of 30 mm is
required to install the TECEsquare II (B) and when using
the flush-mounted installation frame (C).
min. 18 mm min. 30 mm min. 30 mm
A
ABC

5-15
TECEbox  cm – Assembly
TECEbox 8 cm
TECEbox toilet module
Toilet module with cistern (8 cm deep), compatible with all
TECE flush plates (excluding the TECEplanus flush plates
with IR sensor). The module can be installed in front of a
brick wall or in lightweight partition walls with a metal or
wooden frame.
Assembly in front of a wall
The height of the telescopic feet must be checked first
before installing the TECEbox module in front of a wall.
The feet are then attached to the floor and the top partto
the wall.
Assembly with a frame
Position the module on the frame flush against the sup-
ports. Adjust the height of the telescopic feet and attach
them to the floor.
Attach the sides of the module to the supports on the
frame.
Attach the water connection (connection 1/2“ FI on the
cistern) and clad the wall with plasterboards. Ensure that
openings are left for the flush plate, drainage and threaded
rods. The total thickness of the coating (board, adhesive
and tiles) must be at least 18 mm.

5-16
TECEbox  cm – Assembly
TECEbox 8 cm
Repairing the cistern
The TECE cistern tank is made of polypropylene. If a leak-
age point is found (up to a diameter of approx. 12 mm),
this can be mended using a repair set. This consists of:
• 5 plastic disks
• Sandpaper
• Solvent (125 ml)
• 2 cloths
• Hot glue gun
• 2 glue sticks
Repair set for TECE cistern (order number )
Repair instructions
Clear and clean the area around the opening.
Round o the edges around the opening with a cutter
knife.
Sand the area around the opening as well as the plastic
disks with sandpaper.
Clean the area to be repaired thoroughly using a solvent
or acetone.

5-17
TECEbox 8 cm
Insert a glue stick into the hot glue gun and apply the
glue to the plastic disk (the covered area must be twice as
large as the diameter of the opening). Only use the original
adhesive and do not mix this with other adhesives!
Immediately place the disk on the opening and press
lightly. The drying time is approx. 15 minutes. Fill the cis-
tern and check the seal.
TECEbox washstand and bidet
The TECEbox modules for washstand and bidet let you
implement all connections with brick walls easily. Both
modules comes with an all-around steel frame with a depth
of 8 cm.
With the washstand module the distance between the
threaded rods and the height of the attachment bracket
must be adjusted, whereas with the bidet module both the
height of the attaching rods as well as the height of the
drainage must be checked. It is important that all adjust-
ments are performed before bricking in the modules. It is
not possible to change the dimensions in retrospect.
TECEbox washstand module (order no.   )
TECEbox bidet module (order no.   )

5-18
TECEbox 8 cm
Assembly for washstand and bidet modules
The assembly phases are the same for both modules
(washstand and bidet). They can be installed in front of a
solid wall or installed in the wall with the help of a small
niche.
Dimensions of the TECEbox washstand module (order no.   )
Dimensions of the TECEbox bidet module (order no.   )
Assembly in front of the wall: Make sure the module is
level, open the four wings on the sides and attach to the
brick wall.
Adjust the height of the attachment bracket and drain
bend. Connect the water connections and fit the caps for
both ends as well as for the drainpipe.
With the washstand module, you must set the distance
between the threaded rods (minimum value 170 mm, maxi-
mum value 280 mm).
Brick the module in completely and fill all cavities.
Plaster and tile the wall.

5-19
TECEbox 8 cm
TECEbox urinal flush valve housing
The urinal flush valve housing with TECE valve is already
pre-mounted on an attachment plate and can easily be
inserted into the slot in the wall. The big advantage of
this urinal flush valve housing is its total compatibility with
manual or electronic actuation variants. This means the
flush plate can be swapped out at any time, even after
assembly.
Note:
The urinal ceramics to be used must be known in advance
prior to installation. You should use the current connection
dimensions from the ceramic manufacturer for this pur-
pose.
Assembly of TECEbox urinal flush valve housing
The depth and assembly height of the attachment bracket
must be taken into account when installing the urinal flush
valve housing. The position of the valve and the bare-wall
protection must also be considered.
The flush valve housing is inserted into a slot in the wall
and attached using a holding plate. The water connection
and the intake for the urinal ceramics can be installed
using any approved piping system.
The urinal flush valve is locked in its as-delivered state so
the required pressure test can be performed.
The inlet flow control is located above the stopper. This
must only be removed during the fine installation.

5-20
TECEbox 8 cm
Install the protective shell and ensure it is aligned correctly.
min.
VP250108 00 a
min.
top
min.
min.
top
The bare-wall protection housing is cut flush to the wall
after tiling.
Please remember to follow the required wall mounting
dimensions when using the corresponding urinal actuation.