Rehau VACUCLEAN 2000 Manual

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REHAU-VACUCLEAN
The Central Vacuum Cleaner System
Technical information 885.600 Ex/e Valid as from April 2005 Subject to technical modifications

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Table of Contents
Safety recommendations and information on this document ............................................................................................. 5
1. Overview of REHAU-VACUCLEAN ............................................................................................................................ 7
1.1 System description ............................................................................................................................................................................7
1.2 Method of operation ..........................................................................................................................................................................8
1.3 Motor and performance .....................................................................................................................................................................8
2. Planning ................................................................................................................................................................... 9
2.1 Planning information ..........................................................................................................................................................................9
2.2 Planning stages .................................................................................................................................................................................9
3. Building types ........................................................................................................................................................ 11
4. Areas of use ........................................................................................................................................................... 13
4.1 Radio remote control system ...........................................................................................................................................................13
5. Installation and operation ...................................................................................................................................... 15
5.1 Safety recommendations .................................................................................................................................................................15
5.2 Suction socket .................................................................................................................................................................................16
5.3 Floor socket .....................................................................................................................................................................................19
5.4 Wall vacuum connection Vac-Pan ....................................................................................................................................................19
5.6 Central vacuum unit .........................................................................................................................................................................23
5.7 Connection to power supply ............................................................................................................................................................26
5.8 Repeater ..........................................................................................................................................................................................27
5.8.1 Programming ...................................................................................................................................................................................27
5.8.2 Help in case of faulty programming ..................................................................................................................................................28
5.9 Operation via control cable ..............................................................................................................................................................29
5.9.1 System components ........................................................................................................................................................................29
5.9.2 Installation information .....................................................................................................................................................................30
5.9.2.1 Control cable ...................................................................................................................................................................................30
5.9.2.2 Vacuum pipe ...................................................................................................................................................................................30
5.9.2.3 Suction socket .................................................................................................................................................................................32
5.9.2.4 Floor socket .....................................................................................................................................................................................33
5.9.2.5 Wall vacuum connection Vac-Pan ....................................................................................................................................................33
5.9.2.6 Connection to power supply ............................................................................................................................................................34
5.9.3 Block diagram .................................................................................................................................................................................35
5.10 Subsequent installation ....................................................................................................................................................................36
5.11 Information on operation ..................................................................................................................................................................36
5.12 Fire protection .................................................................................................................................................................................36
6. Troubleshooting ..................................................................................................................................................... 37
6.1 Eliminating malfunctions ...................................................................................................................................................................37
7. Service ................................................................................................................................................................... 39
7.1 Emptying the waste container ..........................................................................................................................................................39
7.2 Cleaning and replacing the cartridge filter ........................................................................................................................................39
7.3 Replacing the carbon brushes .........................................................................................................................................................40
7.4 Changing the battery of the radio sender unit ...................................................................................................................................40
7.5 Checking and cleaning the suction sockets and wall vacuum connection Vac-Pan ..........................................................................40
7.6 Information on disposal ....................................................................................................................................................................40
8. Technical specifications ........................................................................................................................................ 41
9. Acceptance / service report .................................................................................................................................. 43

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Safety recommendations and information
on this document
Intended use
The REHAU-VACUCLEAN central vacuum
cleaner system may only be installed and
operated in accordance with this technical
information. Any other use is unintended and
therefore impermissible.
General precautionary measures
➜Keep the work area clean and free of
impeding objects.
➜Provide sufficient lighting at the work area.
➜Keep children, house pets and
unauthorised persons away from tools and
the installation sites. This is especially
important in cases of renovation in
inhabited areas.
➜Do not allow children near electronic
devices without supervision.
➜Use only the intended components for the
respective REHAU pipe system. Using
components from other manufacturers or
unsuitable tools for installation can lead to
accidents and other dangerous situations.
Fire protection
➜Observe the applicable fire protection
regulations very carefully as well as the
codes of building practice / building
regulations that apply in each case,
especially in relation to:
- Penetration through ceilings and walls.
- Rooms with special/greater
requirements for preventative fire-
protection measures (observe national
regulations).
Personnel requirements
➜Allow only authorised and trained persons
to install our systems.
➜Work on electrical systems or pipe
sections may only be performed by
persons trained and authorised for this
purpose.
Work clothing
➜Wear protective glasses, suitable work
clothing, protective shoes, a protective
helmet and, if you have long hair, a hairnet.
➜Do not wear loose clothing or jewellery, as
they can be caught by moving parts.
➜Wear a protective helmet when performing
installation work at head level or above
your head.
When installing the system
Using a house's water drain pipes to double
as exhaust air pipes is impermissible.
➜When shortening a pipe, maintain a safe
distance between the hand holding the
object and the cutting tool.
➜Never put your hands near the area where
the tool is cutting or on moving parts.
➜When performing service, maintenance
and conversion work and when changing
the installation site, always unplug the
power plug of the tool and secure it against
being switched on inadvertently.
When operating the system
➜Do not allow children to play with the
suction sockets.
➜Under no circumstances may liquids be
allowed to end up in the suction and
exhaust air system.
➜Check the suction sockets regularly for
proper operation.
➜Keep small house pets away from the
suction sockets.
Notes on this
technical information
Navigation
A detailed table of contents with hierarchical
titles and the corresponding number of
pages is found at the beginning of this
technical information.
Pictograms and logos
➜Read the safety recommendations and
operating instructions carefully and
completely for your own safety and for
the safety of other people before
starting the installation. Retain the
operating instructions and keep them
handy.
➜If you do not understand the safety
recommendations or individual
installation regulations, or if they are
unclear, contact your REHAU sales
office.
➜Observe all national installation,
accident-prevention and safety
regulations when installing piping
systems and the notes in this technical
information.
Areas of use not dealt with in this
technical information (special
applications) require consultation with our
applications department.
➜Please contact your REHAU sales
office.
Safety recommendation
Legal note
➜Action to be performed
Important information
Information on the Internet
Advantages
➜Please check at regular intervals
whether a more recent version of this
technical information is available for
your own safety and to ensure correct
usage of our products.
The date of issue of your technical
information is always printed at the
bottom right on the cover page (e.g. 3.04
for March 2004).
The current technical information is
available from your REHAU sales office,
specialist wholesaler as well as on the
Internet as a download under:
www.REHAU.com

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1. Overview of REHAU-VACUCLEAN
1.1
System description
The REHAU-VACUCLEAN central vacuum
cleaner system consists of a central vacuum
unit and the sound insulating
RAUPIANO Plus pipe system laid in the
building.
You can conveniently vacuum with the
telescopic tube and the 6 m or 8 m suction
hose without having to move a heavy
appliance from room to room or over stairs.
You simply insert the suction hose into the
suction socket and switch on the central
vacuum unit with the remote radio control
system. The central vacuum unit starts
powerfully drawing in air without any
bothersome loud motor noises.
With the REHAU-VACUCLEAN central
vacuum cleaner system, exhaust air no
longer ends up in the room with you, as it is
directed outside through filters. This is
important for those with dust allergies and
asthma, who would immediately notice the
difference with common vacuuming
methods.
The air full of debris is transported from the
individual suction sockets to the central
vacuum unit through the sound insulating
RAUPIANO Plus pipe system.
This is installed in a lower room (e.g. cellar).
Using a special filtering technique (cyclonic
separation) and a downstream cartridge filter,
the air sucked in is cleaned before being
released outside.
Alternatively, a wall vacuum connection Vac-
Pan can be installed instead of a suction
socket for drawing in swept waste.
+Easy handling, as just the suction hose
is moved
+Strong and consistent suction
performance
+Minimal noise generation
+Diversion of microscopic dust into the
open
+Smooth pipe interior
+Maintenance-free, sound-insulating
RAUPIANO Plus pipe system
+ Resistant to abrasion
+ Low-pressure resistant
Fig. 1-1: REHAU-VACUCLEAN in a single-family dwelling

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1.2
Method of operation
Working with the suction hose
Fig. 1-2: Connecting suction hose
➜Attach hose with telescopic tube and
nozzle to the suction socket (see Fig. 1-2).
➜Switch on central vacuum unit with the
"ON" button of the radio sender unit.
➜After vacuuming, switch off central
vacuum unit with the "OFF" button of the
radio sender unit.
➜Do not switch on the central vacuum
unit until the suction hose is connected
to the suction socket or the wall
vacuum connection Vac-Pan is open.
➜Switch off the central vacuum unit
before the suction hose is removed
from the suction socket or the wall
vacuum connection Vac-Pan is closed.
For safety reasons, the central vacuum
unit switches off automatically after
15 minutes of operation.
➜Switch on the central vacuum unit
again with the "ON" button of the radio
sender unit.
Working with the wall vacuum
connection Vac-Pan
Fig. 1-3: Wall vacuum connection
Vac-Pan
➜Open Vac-Pan.
➜Switch on central vacuum unit with the
"ON" button of the radio sender unit.
➜Sweep waste to be sucked up into the
Vac-Pan.
➜Switch off central vacuum unit with the
"OFF" button of the radio sender unit.
➜Close Vac-Pan.
1.3
Motor and performance
High air watt capacity at high efficiency is a
deciding factor for the suction performance
at the nozzle of the REHAU-VACUCLEAN
central vacuum cleaner system.
The motors of the central vacuum unit from
REHAU offer the best output and advantages
in comparison to many of our competitors:
Air data for REHAU vacuum units in comparison to our competitors
Fig. 1-4: Air data for REHAU vacuum units in comparison to our competitors
REHAU
Competitors
ηEfficiency
Volumetric flow
➜Do not switch on the vacuum unit if the
wall vacuum connection Vac-Pan is
closed.
➜If the central vacuum unit is not
connected at the lowest point of the
system, wait approx. 10 seconds after
vacuuming for the vacuumed debris to
be fully sucked up.
+High-quality ball bearings
+Automatic switch-off carbon brushes
+High endurance
+Electronic soft start-up
+Thermal cut-outs prevent overheating
+Long service life
+Millions in use today
V

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2. Planning
2.1
Planning information
Warning!
Risk of death!
Disregarding the fire-protection
regulations and measures risks death and
severe burns to users/tenants.
➜Observe fire-protection regulations and
building codes of practice/regulations.
■It is not necessary to provide each
room with a suction socket. The
required number is determined during
the planning phase.
■The vacuum pipes may be mounted
on or inside the wall.
➜Lay the pipe system as short and
straight as possible.
➜Install the suction sockets near doors
so as to cover several rooms. This
installation location also ensures that
the suction sockets are not blocked by
furniture.
➜For garages, install suction sockets
near the garage door so that you can
clean your car comfortably outside the
garage.
➜Take an under-roof floor which can be
finished into account during planning
and execution.
2.2
Planning stages
1. Acquire correct-scale ground plot
diagrams of the building (scale 1:100).
Fig. 2-1: Drawing ranges
2. Draw the ranges (green lines) on the
ground plot diagrams (see Fig. 2-1):
- Determine the working radius: For this
purpose, deduct 1 m from the length of
the suction hose.
Length of the suction hose:
6 m for Item No. 242483-001,
8 m for Item No. 242473-001.
- Draw the working radius from the outer
corners of the ground plot with the
compass.
Fig. 2-2: Providing suction sockets
3. Provide suction sockets in the overlap
areas (shaded green) (see Fig. 2-2):
- If two circles overlap: Install a suction
socket in each overlap area.
For optimal use of the working radius of
the suction hose: Select the final
position of the suction sockets in such a
way that the non-shaded areas are also
covered with the suction hose.
- If all the circles in a common area
overlap, e.g. in small flats, a single
suction socket is sufficient for each flat:
Provide a suction socket in this area.
- If no overlap areas arise when planning
for larger structures: Provide additional
suction sockets.
Fig. 2-3: Drawing working radius
4. Draw the working radius from the planned
suction socket as a checking measure (see
Fig. 2-3):
- Check whether all areas to be cleaned
are within the working radii.
- Check whether partition walls limit the
working radius.
5. Determine the installation site of the central
vacuum unit:
- Always install the central vacuum unit
toward the bottom of the building.
- If suction occurs against the pull of
gravity in sections of the suction pipes:
Comply with the usage limitations (see
Chap. 4, Page 13).
6. Determine the design length to select the
unit type:
- The design length corresponds to the
pipeline length from the central vacuum
unit to the furthest suction socket plus
the length of the exhaust air pipe.
- Take the following equivalent lengths
into account with the design length for
each redirection (bend, branch):
45° bend: 0.5 m
90° bend: 1.0 m
Branch: 0.5 m
7. Select the central vacuum unit with the
appropriate performance using the
calculated design length (see Table 4-1,
Page 13).

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Example
Fig. 2-4: Example design length calculation
1 Suction socket
2Branch
3 Central vacuum unit
4 Exhaust gas silencer
Suction pipe: 15.0 m
Exhaust air pipe: 3.0 m
45° bend: 3.5 m (seven pc., 0.5 m equivalent length each)
90° bend: 1.0 m (one pc., 1.0 m equivalent length)
Branch: 0.5 m (one pc.)
Design length: 23.0 m
Result: Central vacuum unit type 2000
5 m
1 m
2 x 45°
1 x 45°
1 x 90°
7 m
2 m
2 x 45°
2 m
2 x 45°
1 m
3
4
1
2

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3. Building types
Single family dwelling
We recommend implementing distribution in
the cellar when planning the pipe system.
If there is no cellar under the house, the
central vacuum unit can be installed in a
storage room.
The floors of the house are passed through
with vertical pipelines and connected up to
the suction sockets.
Multi-family dwelling
A pipe system and separate vacuum unit is
provided for each flat in a multi-family
dwelling. All central vacuum units can be
installed on the cellar level.
The exhaust air pipes of the individual central
vacuum units can be combined into a larger
collection pipe (e.g. DN 110) downstream of
the sound absorber and directed outside
(see Fig. 3-2).
If each individual flat contains a storage room
with the possibility to install an exhaust air
pipe to the outside, the central vacuum unit
can also be installed here.
Fig. 3-1: Example for single-family dwelling
Fig. 3-2: Example for multi-family dwelling
AFlat1
BFlat2

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Hotels, offices and commercial
use
Two suction sockets can be employed
simultaneously if unit type 4000 is used.
Cleaning zones
The building can be divided into so-called
cleaning zones. A cleaning zone represents
the area cleaned by one person.
The suction sockets of a cleaning zone are
linked with a pipeline and connected to the
desired unit type.
With unit type 4000, two cleaning zones can
be connected (see Fig. 3-3).
Only one suction socket may be used at a
time without a drop in performance with unit
types 2000 and 3000.
Cleaning personnel
The number of required cleaning persons (R)
is calculated from the average cleaning
performance (A = 200 m2/h), the area to be
cleaned (F) and the specified cleaning time (t):
R = F / (t x A)
➜Select central vacuum units, taking into
account the distance to the furthest
suction socket (design length) and the
number of simultaneous users.
Example:
R = 800 / (1.5 x 200) = 2.7
Result:
Three cleaning persons are required.
Cleaning zones 1 and 2
(two simultaneous users)
Design length up to 80 m:
Unit type 4000
Cleaning zone 3 (one user)
Design length up to 80 m:
Unit type 2000
➜We recommend unit types 3000 and
4000 for commercial use (see Chap. 4,
Page 13).
Office building: F = 800 m2
Three cleaning zones: t = 1.5 h
A = 200 m2/h Fig. 3-3: Example for office building
A Cleaning zone 1
B Cleaning zone 2
C Cleaning zone 3
D Unit type 4000 (cleaning zones 1 and 2)
E Unit type 2000 (cleaning zone 3)

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4. Areas of use
4.1
Radio remote control system
Operation of the remote radio control system
may be limited or fully impeded by cellar
floors made of reinforced concrete or if radio-
blocking materials (e.g. metal rib mesh, floor
heating with metal pipes, metal wall or ceiling
cladding) are used.
Remote radio control of the central vacuum
unit can be made possible in buildings with
radio-transmission limiting properties by
carrying out the following measures:
■Place the radio receiver unit of the central
vacuum unit in the cellar hallway or
stairway. A 5 m connection cable is
available for this purpose.
■If this is not possible or insufficient on the
customer side, the remote radio control
system can be supported by the use of a
repeater (see Chap. 5.8, Page 27).
The repeater can also be used when
upgrading existing systems.
■Working frequency: 434 MHz, rolling-code
method
The REHAU-VACUCLEAN central
vacuum cleaner system was designed for
vacuuming household dust in buildings.
When using REHAU-VACUCLEAN in
commercial buildings or multi-family
dwellings with larger areas or several
floors, please contact our applications
department for consultation.
➜Observe all national regulations when
using the remote radio control system
and the notes in this technical
information.
Unit type Area of use Maximum
suction
height 1) [m]
1) Vertical difference between central vacuum unit and lowest suction socket
Maximum design
length
[m]
Maximum number
of suction sockets
Maximum
living space 2) 3)
[m2]
2) Orientation for selection of the unit type
3) For more than three floors, including the cellar, or for floor sizes > 140 m2, you should plan on using one or more repeaters.
2000 Single-family dwellings and
flats
0 80 15 400
2.5 50
5.0 40
3000 Small multi-family dwellings
Pensions, offices, businesses
0 100 20 600
2.5 80
5.0 70
8.0 60
4000 One user in pensions,
small hotels, office buildings,
places of business
0 120 25 800
2.5 90
5.0 80
8.0 70
4000 Two users in pensions,
small hotels, office buildings,
places of business
0 80 25 800
2.5 50
Table 4-1: REHAU-VACUCLEAN areas of use

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5. Installation and operation
5.1
Safety recommendations
When installing and servicing the
system
■Before attempting any work on the central
vacuum unit, set the appliance switch to
the "Off" position and then disconnect the
mains plug from the socket of the radio
receiver unit.
■Never pull the mains plug from the socket
of the radio receiver unit by the mains
cable.
■The electrical power circuit serving the
earthed socket outlet must be protected
by a fuse of sufficient rating and the socket
outlet must have earthing contacts.
Consult an electrician in this regard.
■Only connect the central vacuum unit to a
220/230 V AC power supply.
■Do not drag or carry the vacuum unit by
the mains cable. The mains cable must not
be pulled over sharp edges or corners and
must always be prevented from contacting
hot surfaces and liquid chemicals.
■Do not carry out any modifications to the
central vacuum units.
When operating the system
■The system is only to be used for purposes
described in these technical specifications.
- Use only for cleaning up dry
substances.
- Do not use the system for cleaning up
caustic or solvent-based substances or
substances that present a health risk.
- Acetone, acids and solvents may attack
the central vacuum unit and pipelines.
- Do not use the system for cleaning up
water.
- Do not use the system for extracting
kitchen vapours.
■Risk of injury to eyes and ears!
- Do not hold nozzles or pipes near your
head when the central vacuum unit is
switched on.
- Do not vacuum people's clothing or
animal fur.
- Do not allow children to play near the
suction sockets.
■Do not allow children to operate the
vacuum cleaner system.
■Risk of electric shock!
- Do not use the REHAU-VACUCLEAN
on wet surfaces.
- Never touch the mains plug, mains
cable or the central vacuum unit with
wet hands or with wet cleaning cloths.
- Do not use the system for cleaning up
photocopier toner, printer toner or soot.
Toner and soot may be electrically
conductive.
■Explosion and fire hazard!
- Do not use the system for cleaning up lit
cigarettes, hot ash, lit matches or similar
materials.
- Do not use the system for cleaning up
flammable or combustible liquids, such
as petrol, solvents or heating oil. The
swirling action caused by the suction air
may produce explosive mixtures.
- Do not operate the central vacuum unit
in rooms in which inflammable
substances are stored or gases have
built up.
■Do not start the system if:
- the power supply cable is damaged or
- The central vacuum unit shows visible
damage.
■Do not insert any objects into the suction
sockets.
- Do not use suction sockets if they are
blocked.
- Keep openings free of dust, fluff, hair
and anything that may cause leakage
and affect the flow of air.
■Only operate the central vacuum unit with
the standard-fitted cartridge filters.
- Before use, check that the cartridge
filter is properly seated.
■Ensure that nobody is able to trip over the
long suction hose.
- Exercise particular care when cleaning
stairs.
■Do not twist or kink the suction hose. Pay
particular attention to furniture edges,
doors and radiators.
■Damage to the central vacuum unit,
accessories or mains cable must only be
repaired by authorised customer service.
Only use genuine replacement parts.
■Protect the system from the effects of
weather, moisture and heat sources.
■Unplug mains plug:
- if malfunctions occur while using the
system
- before carrying out any cleaning or
servicing work on the system
- when changing the filter
➜Observe the provisions contained in
the regulations for the prevention of
accidents, VDE provisions and the
provisions issued by the employers'
liability insurance association, the
applicable code of building practice
and the national building regulations.
➜Observe the applicable fire-protection
regulations very carefully, especially in
regard to:
- Penetration through ceilings and walls.
- Rooms with special/greater
requirements for preventative fire-
protection measures (observe national
regulations)

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5.2
Suction socket
➜Install suction sockets at the same height
as the electrical outlets for a pleasing
appearance.
➜Install suction socket connecting bend
DN 50 90° (Item No.: 243558-002,
minimum installation depth is approx.
90 mm (see Fig. 5-1)) with the sleeve flush
with the masonry.
Fig. 5-1: Suction socket connecting bend
➜Pull the suction socket adapter (black
rubber nipple, Item No. 243578-001) out
of the suction socket connecting bend.
➜Attach suction socket connecting bend
onto the back of the mounting frame (Item
No. 243352-001) in such a way that the
holding plate runs in the groove of the
bend.
➜Insert the pointed end of the connecting
bend into the sleeve of the suction pipe
running in the wall slot.
➜Secure mounting frame vertically in the
wall.
➜Reinsert suction socket adapter.
Fig. 5-2: Installed mounting frame
Fig. 5-3: Mounting frame with plaster
cover
➜In order to plaster, attach the plaster cover
(Item No.: 242767-001) (see Fig. 5-3).
➜To remove the plaster cover, insert a
narrow screwdriver into the slot, press the
clip toward the central bridge and pull off
plaster cover.
➜Apply a sliding agent to insertion end of
suction socket (Item No. 128933-002) and
press into the suction socket adapter.
➜Screw in and tighten socket at mounting
frame (Cover opening faces upward or
downward).
Fig. 5-4: Fully installed suction socket
The alignment of the suction socket is
defined by the vertical mounting of the
mounting frame.
The opening direction of the suction
socket cover is determined by the
installation direction of the mounting
frame (see mounting instructions of the
mounting frame (Brochure No.
00F2075 d,e,f)).

17
Installation in solid walls
➜Install suction socket approx. 30 cm above
the finished floor.
Fig. 5-5: Installation in solid walls
1Solidwall
2Plaster
3 Mounting frame
4 Suction socket adapter
5 Suction socket
6 Suction socket connecting bend
DN 50 90° with suction socket adapter
1min. 95
max. 20
min. 10
2
3
4
50
5
6

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Installation in lightweight walls
■Cladding with chip boards and gypsum
plates
➜Install suction socket approx. 30 cm above
the finished floor.
Fig. 5-6: Mounting in lightweight walls, variation 1
■Cladding with chip boards or gypsum
plates
Fig. 5-7: Mounting in lightweight walls, variation 2
1 Lightweight wall
2Chipboard
3Gypsumplate
4 Mounting frame
5 Suction socket adapter
6 Suction socket
7 Suction socket connecting bend
DN 50 90° with suction socket adapter
1
max. 20
min. 10
2
3
5
50
6
7
4
min. 95
1 Lightweight wall
2 Chip board or gypsum plate
3 Mounting frame
4 Suction socket adapter
5 Suction socket
6 Suction socket connecting bend
DN 50 90° with suction socket adapter
1
min. 95
max. 20
min. 10
2
3
4
50
5
6

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5.3
Floor socket
➜Install floor socket in such a way that it is
not blocked by the planned furniture
arrangement.
■We recommend installation near a door.
➜Make an opening with a 70 mm diameter
in the floor.
➜Drill holes for the mounting screws of the
socket and insert plugs.
➜Lay and secure vacuum pipe in such a way
that the sleeve ends approx. 15 – 20 mm
under the finished floor.
➜Close pipe opening, e.g. with a sleeve
plug, to protect from soiling.
➜Replace O-ring with suction socket
adapter (black rubber nipple,
Item No. 243578-001).
➜After laying the floor covering, arrange it at
the installation site in such a way that the
floor socket fully covers the hole.
➜Screw floor socket to the floor.
5.4
Wall vacuum connection Vac-Pan
The wall vacuum connection Vac-Pan (Item
No. 243582-001) is used to suck up swept
waste, e.g. in a kitchen. Installation is best in
the baseboard of the kitchenette or in stud-
frame walls.
■When connecting the pipeline from the
front:
➜Make an opening with a width = 165 mm,
and height = 95 mm for the vacuum pipe
and use the accompanying cover blind
(see Fig. 5-8).
Fig. 5-8: Connection of vacuum pipe
(with access from the front)
➜Position Vac-Pan.
➜Attach accompanying pipe bend, align it
and fit it to the pipeline.
➜Screw in Vac-Pan with cover blind at the
installation site (see Fig. 5-8).
Fig. 5-9: Installation from the front
■When connecting the pipeline from the
rear:
If the Vac-Pan is accessible from the rear
when installed, an opening with a width =
165 mm and a height = 40 mm is sufficient.
The separate cover blind is not installed (see
Fig. 5-10).
Fig. 5-10: Connection of vacuum pipe
(with access from the rear)
➜Position Vac-Pan.
➜Attach accompanying pipe bend, align it
and fit it to the pipeline.
➜Screw in Vac-Pan at the installation site
(see Fig. 5-10).
Fig. 5-11: Installation from the rear
Information on operation
➜To use the Vac-Pan, open the suction flap,
start the central vacuum unit with the radio
sender unit and sweep the debris into the
opening.
➜After using the Vac-Pan, close the suction
flap again and switch off the central
vacuum unit via the radio sender unit.
➜Cement suction pipe into unfinished
floor or (if sufficient insulation thickness
is available) lay in the insulation
between the screed and the unfinished
floor (see Chap. 5.5, Page 20).
➜Ensure that other pipe systems, e.g.
floor heating, are not impaired here.

20
5.5
Vacuum pipe
■Laying pipes in adjacent rooms (e.g. cellar,
garage) can be done via mounting on the
surface under the ceiling or on the wall.
Use a surface mounted suction socket for
this.
■Laying in screed is not permissible, as it
can shorten due to the temperature and
impact sound insulation. This could cause
leaks at the transition point of the vacuum
pipe from the screed to the masonry.
■Laying in the outer insulation of a building
is not permissible.
➜Install vacuum pipes DN 50 in wall slots of
at least 80 x 80 mm.
➜Take static requirements of the masonry,
especially for horizontal slots, into account
during planning and execution.
➜Make wall slots in such a way that the
pipeline can be laid without being
tensioned.
➜Before plastering in, surround pipes and
fittings on all sides with flexible materials
such as corrugated cardboard, mineral or
glass wool or commercial insulation tubes.
➜Protect pipes and fittings from the effects
of high temperatures with appropriate
measures (insulation) at points where
temperatures over 100 °C are reached
due to external influences.
➜When laying the pipes and fittings, ensure
that the sleeves point against the direction
of flow.
➜If installed in a suspended ceiling, check
whether it runs through an inhabited area.
If this is the case, attach additional
insulation.
Laying in concrete
The static condition may not be impaired by
laying in concrete.
➜Ask a professional for advice before
starting the work.
➜If cementing in is permissible, secure the
pipe sections in such a way that a change
in position is prevented during cementing.
➜To prevent penetration of cement slurry,
close the sleeve gaps with tape.
➜Close pipe openings.
The total weight of the cement may not be
supported by the pipeline. We strongly
advise being very careful when committing
the pipes and fittings to a position, e.g. during
cementing.
➜Make provisions for the dissipation of the
load in accordance with technical
guidelines, e.g. spacers for reinforced
steels, carrying boxes (folded sheet-metal
edges), consoles etc.
Fig. 5-12: Installation diagram for laying in concrete
Warning!
Risk of death!
Disregarding the fire-protection
regulations and measures risks death and
severe burns to users/tenants.
➜Observe fire-protection regulations and
building codes of practice/regulations.
➜Observe the national regulations for
cut-outs and slots in the masonry.
REHAU recommend acoustically
decoupling the line from the main
structure with commercially available,
moisture-protective impact-sound
insulation (S > 4 mm).
➜Use joints for the transition into the wall
slot.
1Wall
2 Unfinished floor
3Insulation
4 Screed
5Carpet
5
4
3
2
5
123
100
ø70
1