Lindab Plexus User manual

LindabPlexus
lindab | we simplify construction
© 03.2021 Lindab Ventilation. All forms of reproduction without written permission are forbidden. is the registered trademark of Lindab AB.
Lindab's products, systems, product and product group designations are protected by intellectual property rights (IPR).
Active chilled beam
Installation instructions

2
Installation instruction Plexus
Lindab reserves the right to make changes without prior notice
2021-03-02
Lindab reserves the right to make changes without prior notice
2021-03-02
lindab | we simplify construction
1. Content and symbols
1. Content and symbols ....................................................2
1.1 Content .....................................................................2
1.2 Symbols....................................................................3
2. Control of delivery .........................................................3
2.1 Before starting ..........................................................3
2.2 Safe operation ..........................................................3
2.3 Receipt of goods ......................................................3
2.4 Unloading of goods ..................................................3
2.5 Handling / Carrying...................................................3
2.6 Tools..........................................................................4
2.7 Installation.................................................................4
2.8 Where to find additional instructions or technical
documentation..........................................................4
2.9 Cleaning after assembly/before commissioning......4
2.10 Packing, unpacking guideline...................................5
2.11 Product labelling.......................................................6
2.12 Order code................................................................7
2.13 Order code examples ...............................................7
2.14 Label .........................................................................7
2.15 Contents of order......................................................8
2.16 Plus features .............................................................8
2.16.1 Inlet faceplates .........................................................8
2.16.2 Outlet front grilles .....................................................8
2.16.3 Integrated valves ......................................................8
2.16.4 Thermoelectric actuators .........................................8
2.16.5 Integrated Regula components................................8
2.16.6 Airguides...................................................................8
2.16.7 Heating ......................................................................8
2.17 Accessories ..............................................................8
2.17.1 Threaded rod kit (Hangers).......................................8
2.17.2 Flexible hoses ...........................................................8
2.17.3 Transformer...............................................................8
2.17.4 Tectite fittings ...........................................................8
3. Product specification....................................................9
3.1 Product description ..................................................9
3.2 Dimensions ...............................................................9
3.3 General structure.................................................... 10
3.4 Material data........................................................... 10
3.5 Environmental Declarations.................................... 10
3.6 Pressure class ........................................................ 10
3.7 Water quality ........................................................... 10
3.8 Air quality ................................................................ 10
3.9 Capacity test........................................................... 10
4. Connections ................................................................. 11
4.1 Water connections.................................................. 11
4.1.1 Before inst allatio n ................................................... 11
4.1.2 Push on valve.......................................................... 12
4.1.3 Compression fitting ................................................ 12
4.1.4 Flexible hoses ......................................................... 12
4.1.5 Possible connections water cooling
(2-pipe, standard) ................................................... 13
4.1.6 Possible connections water cooling and
heating (4-pipe, standard) ..................................... 14
4.1.7 Water pipe dimensions and placement.................. 15
4.2. Air connections....................................................... 16
4.2.1 Air connection installation ...................................... 16
4.2.2 Possible connections supply air............................. 16
4.2.3 Possible connections extract air ............................ 16
4.3 Possible combination of connections.................... 16
4.4 Electrical connections ............................................ 17
4.4.1 Regula components on the beam .......................... 17
4.4.2 Example 1: Wiring scheme with Regula
Connect multi ......................................................... 18
4.4.3 Example 2: Wiring scheme with Regula
Connect basic......................................................... 18
4.4.4 Regula Connect on the beam................................. 19
4.4.5 Regula Secura on the beam................................... 19
4.4.6 Valves and Actuators on the beam ........................ 19
4.4.7 Regula Combi on/with the beam............................ 19
4.4.8 Thermoelectric actuators (See 2.16.4).................... 19
5. Installation of product ................................................20
5.1 Handling of product................................................20
5.2 Adaption to ceiling systems ...................................20
5.2.1 Ceiling systems.......................................................20
5.2.2 Adaption to ceiling system ..................................... 21
5.3 General installation principles ................................ 25
5.3.1 Recessed in suspended T-bar ceiling....................25
5.3.2 Exposed, sealed to the ceiling ...............................25
5.3.3 Exposed, free hanging ...........................................25
5.3.4 Free hanging above perforated or eggcrate
ceiling......................................................................25
5.3.5 Recessed in suspended (permanent)
ceiling......................................................................25
5.3.6 Recessed in suspended (permanent) ceiling.........25
5.4 Preparation for installation on the product ............26
5.5 Basics steps of installing the product ....................27
6. Adjustment and commissioning................................28
6.1 Airflow and pressure............................................... 28
6.1.1 Jet cone adjustment pins .......................................28
6.1.2 Finding values for JetCone pins ............................29
6.1.3 Adjusting air flow and pressure
with JetCone pins...................................................29
6.2 Adjustment of air distribution profile ......................30
6.3 Measuring air pressure and
calculating the air flow............................................30
6.3.1 Measuring static nozzle pressure
and air pressure......................................................30
6.3.2 Calculating the actual air flow ................................30
6.3.3 Changing the actual air flow...................................30
6.3.4 Changing the air distribution profile .......................30
6.3.5 Plexus pressure / airflow diagram.......................... 31
6.4 Water flow rate........................................................32
6.4.1 Pre-setting of valves...............................................32
6.4.2 Balancing strategy..................................................32
7. Maintenance.................................................................33
7.1 Remove the outlet front grille .................................33
7.2 Open inlet faceplate................................................33
7.3 Opening inspection hatch ......................................33
7.4 Lower battery..........................................................34
7.5 Turnable battery......................................................35
8. Accessories..................................................................37

3
10-25
kg !
10-25
kg !
Installation instruction Plexus
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2. Control of delivery
2.1 Before starting
Read through the entire installation instruction before
commencing installation in order to determine which parts
that needs to be performed and in what order to be done.
Lindab is a supplier of complete water products, but we
offer also a wide range of accessories which suit perfectly
to our water products simplifying your installation work,
e.g. different type of hangers, Tektite-couplings, closing
valves, thermostatic valves and actuators, flexible hoses,
customized regulation components, customized cabeling
and more. See also the separate document “Accessories”.
Lindab will also provide you with a full ventilation system,
with a wide range of Lindab Safe components. See also “Air
Duct Systems”.
2.2 Safe operation
Beware of sharp edges, especially of the coils. Always wear
thin gloves and protective clothing.
All existing safety regulations must be observed when
working with Lindab water products. Check the weights
of the beams or the panels with the installation instruction
before carrying.
2.3 Receipt of goods
Start by checking that the delivery is complete according
to the order and that everything listed on the consignment
note has been delivered. Then carry out a review of the
products and make sure that nothing was damaged during
transportation. If you discover damage that has occurred
during delivery, it must be notified immediately.
Lindab is not responsible for costs associated with the
replacement of products that have been installed in any way
other than shown in these installation instructions.
1.2 Symbols
Heavy Load - 2 man job -
It is recommended to use
a “lift” for mounting.
Hand-pull
Hot water
Cold water
2.4 Unloading of goods
The beams and panels are normally delivered packed on
wooden pallets. Lift the pallets carefully with a fork lift and
place them on a dry and plain surface/ground. If the beams
are delivered in single boxes, wooden blocks should be
placed on the ground at one-metre intervals (or a pallet),
before the boxes are been placed to store. Lindabs water
products must be stored on a plane surface in a dry and
well ventilated place, preferably indoors. If they have to be
stored outdoors, protect them with a waterproof cover and
store them protected from rain beneath a roof or other until
they are fitted.
2.5 Handling / Carrying
The beam or panel must be handled with care, ensuring that
it will not be scratched or bended during transportation,
preparation and installation.
Always carry the beams or panels piecewise into the
building. Keep the product in the package as long as you
can.
Never use piping connections or edges to lift them, neither
when you unpack them nor when you carry them towards
the construction site.
Do not place the product directly on the floor. Use the
protective corners from package or other clean means from
package to place the product before installation.
Be careful if you must carry a long panel horizontally; if
the panels are bended lengthwise, the profiles may be
deformed and the piping could be loosen from the panel.
When opening the box with a knife, be careful not to damage
the product.
Each beam is equipped with protective film to avoid any
damage during transportation and handling on building site.
The film needs to be removed before commissioning the
products.

4
Installation instruction Plexus
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2.6 Tools
To install the beam, panel or facade unit, the following tools are required.
2.7 Installation
It is important to use the correct hangers and the
recommended amount for all installation principles. Different
possible installation principles are shown in the installation
instruction and hangers from Lindab should be used to
ensure, that they are intended for the purpose and are safe
to use.
Lindab´s water products can be ordered, to be adapted
to a wide range of different ceiling systems, please check
installation instruction to ensure best adaptation.
The Lindab water products should always be installed
separately hanged up from the recessed ceiling. The weight
of the product should not be covered by the ceiling system.
Use plastic folio or other to protect the product during on
site construction continually to keep the products in best
condition and avoid any scratches.
2.8 Where to find additional instructions or
technical documentation
In the following chapters we will refer to additional technical
documents or/and instructions by a certain keyword written
as a link.
You can also find relevant related documents with our
Lindab Quick selection tool:
1. Visit www.lindQST.com
2. Select “documentation finder”
3. Select product
4. Find relevant document under “Related documents”
2.9 Cleaning after assembly/ before
commissioning
Please remember to remove plastic folio and other protection
material before commissioning and clean the product before
hand over.
Knife Tape measure
Pencil
Tectite tool 12mm
(Order no: 884087)
Spirit level
Dust-cleaner
Deburring tool Bits and drills
Gloves
Drill machine Spanner
Tectite tool small 12mm
(Order no: 646881)
Lindab PC410
(Order no: 103344)
Vacum cleaner
Shoes with soft soles
Percussion drill
Crowbar Screwdriver

5
10-25
kg !
Installation instruction Plexus
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2.10 Packing, unpacking guideline

6
Date Pstat [Pa] qa [l/s] 1 2 3 4 Signature
JetCones
1 3
2 4
Pos.
0-9
Rev. 04-2012
30
40
50
60
70
80
100
120
20 30 40 50 60 70 80 100 150
0123456789
qa [l/s]
Δp
Stat
[Pa]
qa [m3
/h]
45678910 15 20 25 30 35 40
Plexus S60 Position of JetCone adjustment pins
Plexus_label.indd 1 09-02-2016 14:15:56
Order : xx-xxxxx
Project : xxxxxx xxxxxxxx
Mark : xxxxx
Nozzles : N/A
Product ID : xxxxxxx
Plugs : N/A Sign. :
Pos : xx
Munio-I-xxx-12-125-AX
Pressure: AA Pa Flow: BB l/s
x,xx m
Plexus x-x-xx-xx-xxx-Xx
xx
xx xx xx
xx
xx
xxxx-xxxx-xxxx
xx-xx
xx-xx
Installation instruction Plexus
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2021-03-02
Lindab reserves the right to make changes without prior notice
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lindab | we simplify construction
2.11 Product labelling

7
Plexus F X XXX 12 XXX XX XX XX
I
X
Y
ZS*
L*
M*
H*
SA***
60
62
67
120*
122*
Ø12
(2 x 2 )
Ø125**
Ø160**
( x1 )
A5
A6
B5
B6
A1
B1F
60
120*
Plexus X X XXX 12 XXX XX XX XX
x 2
x 2
x 2
x 2
Order : xx-xxxxx
Project : xxxxxx xxxxxxxx
Mark : xxxxx
Nozzles : N/A
Product ID : xxxxxxx
Plugs : N/A Sign. :
Pos : xx
Munio-I-xxx-12-125-AX
Pressure: AA Pa Flow: BB l/s
x,xx m
Plexus x-x-xx-xx-xxx-Xx
xx
xx xx xx
xx
xx
xxxx-xxxx-xxxx
xx-xx
xx-xx
Order : xx-xxxxx
Project : xxxxxx xxxxxxxx
Mark : xxxxx
Nozzles : N/A
Product ID : xxxxxxx
Plugs : N/A Sign. :
Pos : xx
Munio-I-xxx-12-125-AX
Pressure: AA Pa Flow: BB l/s
x,xx m
Plexus x-x-xx-xx-xxx-Xx
xx
xx xx xx
xx
xx
xxxx-xxxx-xxxx
xx-xx
xx-xx
Order : xx-xxxxx
Project : xxxxxx xxxxxxxx
Mark : xxxxx
Nozzles : N/A
Product ID : xxxxxxx
Plugs : N/A Sign. :
Pos : xx
Munio-I-xxx-12-125-AX
Pressure: AA Pa Flow: BB l/s
x,xx m
Plexus I-S-60-12-125-A5
60 Pa
xx N/A
24 l/s
Order : xx-xxxxx
Project : xxxxxx xxxxxxxx
Mark : xxxxx
Nozzles : N/A
Product ID : xxxxxxx
Plugs : N/A Sign. :
Pos : xx
Munio-I-xxx-12-125-AX
Pressure: AA Pa Flow: BB l/s
x,xx m
Plexus I-S-60-12-125-B6
60 Pa
xx N/A
24 l/s
Order : xx-xxxxx
Project : xxxxxx xxxxxxxx
Mark : xxxxx
Nozzles : N/A
Product ID : xxxxxxx
Plugs : N/A Sign. :
Pos : xx
Munio-I-xxx-12-125-AX
Pressure: AA Pa Flow: BB l/s
x,xx m
Plexus F-S-60-12-125-A1
60 Pa
xx N/A
24 l/s
Plexus I -S -60 - 12 - 125 - A5 - 60 Pa - 24 l/s
Plexus I- S- 60 - 12 - 125 - B6 - 60 Pa - 24 l/s
Plexus F - S- 60 - 12 - 125 - A1 - 60 Pa - 24 l/s
Plexus I, (X, U, Y, Z)
Installation instruction Plexus
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2.12 Order code
2.13 Order code examples
2.14 Label
On the label you will find:
• Order: Order identification number.
• Pos: Order position.
• Product: Product configuration.
• Project: Project name.
• Mark: Marking noted on order.
• Product ID: Product number.
• Sign: To be signed when checked and commissioned on site.
Plexus F
* 120 and 122 only available when S-configuration has been selected. L, M, H configurations only available in 60, 62, 67 versions.
**ØH(Side air connection (A)) = 125 only.
**ØV(Top air connection (B)) = 125 only for S-configuration. ØV= 160 only for L,M,H configurations. (See also dimension table 3.2).
***The type SA (integrated steel frame) is available for version ISA-60 and 120 only, (for T24/T15 lay-in 600, ceiling type 1).
Preset static pressure
before nozzles [Pa]
Preset airflow [l/s]

8
Rc LINK
LINDAB
N = Neutral L = Load S = Signal
RC in/out
CO2 in - S CO2 in - S
CO2 out - N CO2 out - L
Presence in - S
Presence in - S Presence out - N Presence out - L Damper out - S
Damper out - N
Damper out - L
Heating out - S
Heating out - N
Heating out - L
Cooling out - S
Cooling out - N
Cooling out - L
Supply in - N Supply in 24V - L
REGULA CONNECT
Heating in - S Cooling in - S Supply out - N Supply out - L Heating link - S
Cooling link - S Supply link - N Supply link - L
Heating link - S
Cooling link - S
Supply link - N
Supply link - L
Multi
Rc LINK
›
STANDBY
SERVICE
COOL
HEAT
OFF
M8
Lindab reserves the right to make changes without prior notice
2021-03-02
Installation instruction Plexus
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2021-03-02
Lindab reserves the right to make changes without prior notice
2021-03-02
lindab | we simplify construction
Regula Combi Condensation sensor and Regula Secura
Regula Multi connect card
The actuators can be pre-installed on the integrated/
enclosed valves and connected to the integrated Regula
connect card /Regula Secura (plus feature). Go to Actuators
for details. See also Adapter ring.
2.16.5 Integrated Regula components
See LinFlow-A and LinFlow-S for details.
2.16.4 Thermoelectric actuators
2.15 Contents of order
Standard package/order contains:
• Beam
• Plus features (pre-installed in factory)
• 4 pc/beam of copper insets (separate in smaller box)
• Accessories (separate in smaller box)
2.16 Plus features
The plus features offer a wide range of combinations with
pre-installed accessories integrated into the product on
production site. This reduces the installation time on site.
2.16.1 Inlet faceplates
Not relevant for Plexus
2.16.2 Outlet front grilles
Not relevant for Plexus
2.16.3 Integrated valves
Go to Regula for details.
LinFlow-S, straight valve LinFlow-A, angled valve
A-40405
Actuator
APR-40405
Actuator
VA 64
Adapter ring
2.16.6 Airguides
Not relevant for Plexus.
2.16.7 Heating
The product can be equipped with an extra water circuit
with 12 mm connections in the battery to provide a heating
function.
2.17 Accessories
Here are some general accessories. For full range and
order numbers, see separate Accessories document. The
components under 2.16.3 to 2.16.5 are also available as
accessories. Go to "8. Accessories" in this document to find
accessories order numbers.
2.17.1 Threaded rod kit (Hangers)
Order no: See Accessories
2.17.3 Transformer
Order no: See Transformers
2.17.4 Tectite fittings
Order no: 647690, 884050 and 642623 (12 mm)
see Accessories
M8 x4 per beam
Go to 5.4 "Preparation for installation on the product" for
more details. Order no: See Accessories
2.17.2 Flexible hoses

9
!Plexus (I, X, Y, Z) - (S)
=> Øv= 125
Plexus (I, X, U,Y, Z) - (L, M, H)
=> Øv= 160
Øv
476
40
128
11
40
220
49
B
480 (Plexus 120 = 1080)
ØH
365
A
Øv
476
40
128
11
40
220
49
B
480 (Plexus 120 = 1080)
Ø
H
365
A
A
mm
B
mm
ØH
mm
ØV
mm
F ( S, L, M, H) 60 669 669 125 125/160
F S 120 669 1269 125 160
!Plexus (F) - (S)
=> Øv= 125
Plexus (F) - (L, M, H)
=> Øv= 160
Øv
Øv
17.5
40
225
225
14
B
ØH
70
76.2
BA32
334,5
( Plexus F120=634,5)
79
333
ØvØv
17.5
40
225
225
14
B
ØH
70
76.2
BA32
334,5
( Plexus F120=634,5)
79
333
A
mm
B
mm
ØH
mm
ØV
mm
I ( S/SA, L, M, H) 60 594 594 125 125/160 1, 2, 3, 8
X ( S, L, M, H) 60 599 599 125 125/160 4, 5, 6, 7, 14
U ( S, L, M, H) 60 599 599 125 125/160 USA 2’ x 2’
Y ( S, L, M, H) 60 575 575 125 125/160 9, 11
Z ( S, L, M, H) 60 584 584 125 125/160 10
I ( S, L, M, H) 62 619 619 125 125/160 21
I( S, L, M, H) 67 669 669 125 125/160 31, 32
I S/SA 120 594 1194 125 160 1, 2, 3, 8
X S 120 599 1199 125 160 4, 5, 6, 7, 14
Y S 120 575 1174 125 160 9, 11
Z S 120 584 1183 125 160 10
U S 120 599 1209 125 160 USA 2' x 2'
I S 122 619 1244 125 160 21
F 60
I 60
I 120
F 120
Installation instruction Plexus
Lindab reserves the right to make changes without prior notice
2021-03-02
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Lindab reserves the right to make changes without prior notice
2021-03-02
3. Product specification
3.1 Product description
The Plexus beam is a 360° comfort unit and is standardly prepared for ventilation and cooling (2-Pipe connection).
It is available in an integrateable (I 60 / I 120) and an exposed version (F 60 / F 120).
3.2 Dimensions
Plexus I, ( X, U, Y, Z )
Ceiling type
Plexus F
Table 1. Plexus dimensions and ceiling systems
Table 2. Plexus F dimensions

10
Installation instruction Plexus
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Air inlet
3.7 Water quality
Lindab recommend water treatment and quality to be
according to VDI 2035-2.
• The water preparation and maintenance for the chilled
beam water circuit must be handled by a specialist.
• To prevent corrosion, the water circuit must be airtight.
• The water system must also be equipped with aerators
to remove any build-up air in the system.
• The water must be oxygen free, to prevent corrosion.
• The water system must be filled with potable water that
complies with the “EC directive 98/83/EC”.
• pH value of water must be between approximately 6-9 pH.
• The water velocities should not exceed 1m/s, and should
be kept as close to the nominal flow as possible to
minimize noise and optimize the energy yield.
• Use in-line strainers to remove dirt particles from the
water.
• If the water contains any additive inhibitor, then it must
be appropriate to use with copper and solder.
3.8 Air quality
Primary supply air have to be clean, dry and filtered before
reaching the beam.
3.9 Capacity test
Lindabs active chilled beams are Eurovent-certified and
tested according to EN-15116.
Please visit Plexus on www.lindQST.com and see Eurovent
for more details.
3.5 Environmental Declarations
Please follow the links below
• Building product declaration
• Declaration of conformity
• Eurovent certificate
3.6 Pressure Class
The waterborne products in Lindab, active chilled beams
(battery products), passive chilled beams (battery and strips
products), facade units (battery) and radiant panels (strips
and panels) are produced according to pressure class PN10
according to EN 1333: 2006.
This means the maximal working pressure for the products
at a water temperature of 20°C must not exceed 10 bar.
3.4 Material data
3.3 General structure
Type Plexus I 60 Plexus I 120 Plexus F 60 Plexus F 120
Cooling/Heating Cooling/Heating Cooling/Heating Cooling/Heating
Dry weight, kg 11.6 18.6 20 17.2 28.9 30.3
Water content, cooling, l 1.0 1.3 1.0 1.3
Water content, heating, l 0.2 0.4 0.2 0.4
Water content, cooling only, l 1.2 1.3 1.2 1.3
Copper pipes, quality EN-12735-2-CU-DHP
Pressure class PN10
Perforated air inlet plate
Battery (sliced)
Faceplate (sliced)
JetCone frame
JetCones
Service wire
Measuring tube
Angled nozzles
Adjustment pins
for JetCones (x4)
Water inlet/outlet
Table 3. Material data

11
Installation instruction Plexus
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2021-03-02
lindab | we simplify construction
• After removing the protection cover, make sure that the pipe is intact and undamaged, especially at the pipe end, as even
small dents and scratches potentially pose a risk of leakage in the system.
• Eventually deburr the pipe ends on the inside and the outside, using a deburring tool before installation.
4. Connections
4.1. Water connections
Flow indication arrows are shown on the inlet and return pipes in order to assist the installer.
If the control valves have been ordered separately, a special direction of the flow must be upheld to ensure correct flow through
the control valve. Please note the flow direction indicator on the valve to insure correct installation in relation to the desired flow.
When connecting a panel or a beam with the piping system either a push-on fitting or a compression coupling should be
used. Lindab have tested and recommends John Guest push on fittings as well as push-on fittings from Tectite (available as
accessory. See Accessories).
To avoid sound being transported over the beam, we recommend to use our flexible hoses between the piping and the beam
connections. See Accessories.
NB! Every control valve can create sound when it is installed directly connected to the water in- or outlet (or into the piping in
close distance to the in- or outlet of the water product). To avoid unwanted sound generation we recommend to always use a
Lindab control valve LinFlow-A (angled) or LinFlow-S (straight) and calculate the beam with the valve in LindQST\waterborne
calculator.
4.1.1 Before installation
• Notice! The connection pipes are internally soft-welded, therefore it is not allowed to solder the beam to the pipes. For
other than Lindab fittings and valves, please consult the installation guide for the specific fitting for further details on proper
installation.
• Both inlet- and return pipes are covered by a plastic or rubber protection cover, which must be removed before installation.
• Always remember to do a pressure test after assembly of the pipe work.

12
Lmin*
Installation instruction Plexus
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4.1.2 Push-on valve
• Mount a push-on valve to the pipe. Make sure the valve has the correct flow direction (see indication arrow on the valve) and
that you have the correct valve, when integrated valve has been chosen (see indication on valve or follow cabelling to Regula
Connect card). Cooper inserts aren't required !
• Please refer to the suppliers manual.
4.1.3 Compression fitting
• While mounting a compression fitting, the pipe will be exposed to a big amount of force, creating a risk of crushing the pipe.
To ensure that the pipe won’t be crushed when mounting the compression fitting, a copper insert must be inserted into the
pipe (always part of the delivery).
• The copper insert should be placed inside the pipe on the beam. Always support the copper pipe coil when inserting the
copper insert into position.
• Mount a compression coupling and/or a valve to the pipe. Don’t stress the nut too much, since this may crush the pipe.
• Please refer to the suppliers manual.
4.1.4 Flexible hoses
• Our flexible hoses with straight ends can be used with both push-on and compression fitting.
• We recommend to use our flexible hoses with push-on fittings, for easier and faster mounting.
• For the connection to an enclosed valve with integrated push on coupling a flexible hose with straight end (male) or with push
on (female) and a short copper pipe can be used.
• Please refer to the suppliers manual.
* Lmin = 70 mm (to ensure you can open the couplings again).
Lindab flexible hoses are available with straight end (male) for direct connection to Lindab valves also.

13
F 60/120
1
1
5
5
6
6
Installation instruction Plexus
Lindab reserves the right to make changes without prior notice
2021-03-02
lindab | we simplify construction
4.1.5 Possible connections water cooling or heating (2-pipe, standard)
All the Plexus active chilled beams are in the standard version equipped with a so called “2-pipe connection” and contain
one water circuit (cooling or heating).
The dimension for all water pipe connections are Ø =12 mm.
Plexus 60: I, (X, U, Y, Z) cooling or heating (standard) Plexus 120: I, (X, U, Y, Z) cooling or heating (standard)
Plexus F 60: cooling or heating (standard) Plexus F 120: cooling or heating (standard)

14
60 120
F 60/120
1
6
6
1
5
5
Installation instruction Plexus
Lindab reserves the right to make changes without prior notice
2021-03-02
Lindab reserves the right to make changes without prior notice
2021-03-02
lindab | we simplify construction
4.1.6 Possible connections water cooling and heating (4-pipe, Plus feature)
All Plexus’ can have a 4-pipe water connection (plus feature), which beside the cooling circuit also includes a heating circuit.
The dimension for all water pipe connections are Ø =12 mm.
Plexus 60: I, (X, U, Y, Z) cooling and heating Plexus 120: I, (X, U, Y, Z) cooling and heating
Plexus F 120: cooling and heatingPlexus F 60: cooling and heating

15
238
70
327
17.5
35
238
70
327
192.5
385
238
105 70 35
17.5
70
327
238
35
70
327
192.5
10587.5
385
Øv
55
17.5
225B
ØH
70
A
334,5 (Plexus F120 = 634,5)
79
333
Øv
17.5
225B
ØH
70
A
334,5 (Plexus F120 = 634,5)
79
333
79
44
79
44
Installation instruction Plexus
Lindab reserves the right to make changes without prior notice
2021-03-02
lindab | we simplify construction
4.1.7 Water pipe dimensions and placement
Plexus 60: I, (X, U, Y, Z) cooling or heating (standard) Plexus 120: I, (X, U, Y, Z) cooling or heating (standard)
Plexus 120: I, (X, U, Y, Z) cooling and heatingPlexus 60: I, (X, U, Y, Z) cooling and heating
Plexus F 60/120: cooling (standard) Plexus F 60/120: cooling and heating

16
I, (X, U, Y, Z) 60
I, (X, U, Y, Z) 60
I, (X, U, Y, Z) 120
I, (X, U, Y, Z) 120
F60
F60
F120
F120
5
5
6
6
1
1
A
A
A
A
A
A
A
B
B
B
B
B
A
B
B
B
Lindab reserves the right to make changes without prior notice
2021-03-02
Installation instruction Plexus
Lindab reserves the right to make changes without prior notice
2021-03-02
Lindab reserves the right to make changes without prior notice
2021-03-02
lindab | we simplify construction
4.2 Air connections
4.2.1 Air connection installation
The primary air supply must be connected with instructions
from a ventilation specialist. Lindab’s chilled beams can ben-
eficially be used together with Lindab’s Safe®duct systems.
We recommend a flexible duct connection, like Lindab
DRATMFU-125/160, to balance out different installation
heights or directions between connection and duct and avoid
sound will be diverted from piping system to the ceiling.
4.2.2 Possible connections supply air
4.2.3 Possible connections exhaust air
Not relevant for Plexus
4.3 Possible combination of connections
Possible Plexus I, (X, U, Y, Z) connections
Supply air ( A, B ) and water ( 5, 6 ).
A5, A6, B5, B6
Possible Plexus F connections,
Supply air ( A, B ) and water ( 1 ).
A1, B1

17
Regula Combi
Multi Pascal Basic
1
7
Regula Convert
6
4
3
2
5
Regula Sensor Philips
Regula Convert
Power
Rc LINK
LINDAB
N = Neutral
L = Load
S = Signal
RC in/out
CO2 in - S
CO2 in - S
CO2 out - N
CO2 out - L
Presence in - S
Presence in - S
Presence out - N
Presence out - L
Damper out - S
Damper out - N
Damper out - L
Heating out - S
Heating out - N
Heating out - L
Cooling out - S
Cooling out - N
Cooling out - L
Supply in - N
Supply in 24V - L
REGULA CONNECT
Heating in - S
Cooling in - S
Supply out - N
Supply out - L
Heating link - S
Cooling link - S
Supply link - N
Supply link - L
Heating link - S
Cooling link - S
Supply link - N
Supply link - L
Multi
Rc LINK
REGULA CONNECT
Heating in - S
Cooling in - S
Supply out - N
Supply out - L
Heating link_S
Cooling link_S
Supply link - N
Supply link - L
Heating link_S
Cooling link_S
Supply link - N
Supply link - L
Cooling out - S
Cooling out - N
Cooling out - L
Heating out - S
Heating out - N
Heating out - L
Supply in - N
Supply in - 24V - L
LINDAB
N = Neutral
L = Load
S = Signal
Basic
Pascal
REGULA CONNECT
Rc LINK
Rc LINK
CO2 in - S1
CO2 in - S2
CO2 out - N
CO2 out - L
Presence in - S1
Presence in - S2
Presence out - N
Presence out - L
Damper in - Pos
Damper out - S
Damper out - N
Damper out - L
Heating 0-10V- S
Heating 0-10V- N
Heating 0-10V- L
Supply Link2 - N
Supply Link2 - L
Supply Link1 - N
Supply Link1 - L
Supply in - N
Supply in-24V - L
LINDAB
N = Neutral
L = Load
S = Signal
RC in / out
Regula Secura
Installation instruction Plexus
Lindab reserves the right to make changes without prior notice
2021-03-02
lindab | we simplify construction
Lindab reserves the right to make changes without prior notice
2021-03-02
4.4 Electrical connections
Electrical connections on the beam are only necessary, when plus features are chosen and thanks to the pre-fabrication it is as
easy as “plug and play”. The components are always installed near the water-connection at the end of the beam.
For further information, see Regula.
4.4.1 Regula components on the beam
Presence sensor
Regula Secura Sensor
On cooling inlet pipe
inside beam, see 4.4.5
Regula Connect Cards
(with protection covers, optional).
Cooling valve with actuator Heating valve with actuator

18 Lindab reserves the right to make changes without prior notice
2021-03-02
Installation instruction Plexus
Lindab reserves the right to make changes without prior notice
2021-03-02
Lindab reserves the right to make changes without prior notice
2021-03-02
lindab | we simplify construction
Regula Sensor Philips
Regula Convert
Power
Regula Presence SL
4 wire RJ11 6P4C, Straight through Presence
adapter
Blu
Bro
NB: Wire colours
differ from standard
Actuator on/off
24V cooling
A
ctuator on
/
off
24
V
h
eat
i
n
g
g
Blu
B
ro
NB
:
Wi
re co
l
our
s
d
i
ff
er
f
rom standard
5
4
Blu
Bro
2
1
Blu
Bro
1 Whi
2 Red
7
8
NB: Wire colours differ from standard
Condensation sensor
121 White/Orange
2
22 Orange
3
40 White/Green
4
32 Blue
5
31 White/Blue
6
41 Green
7
White/Brown
8Brown
ends must
be insulated {
T568B
Rc LINK
LINDAB
N = Neutral
L = Load
S = Signal
RC in/out
CO2 in - S
CO2 in - S
CO2 out - N
CO2 out - L
Presence in - S
Presence in - S
Presence out - N
Presence out - L
Damper out - S
Damper out - N
Damper out - L
Heating out - S
Heating out - N
Heating out - L
Cooling out - S
Cooling out - N
Cooling out - L
Supply in - N
Supply in 24V - L
REGULA CONNECT
Heating in - S
Cooling in - S
Supply out - N
Supply out - L
Heating link - S
Cooling link - S
Supply link - N
Supply link - L
Heating link - S
Cooling link - S
Supply link - N
Supply link - L
Multi
Rc LINK
Whi
Grn
Bro
Yel
23
24
11
10
›
STANDBY
SERVICE
COOL
HEAT
OFF
Regula Combi
4
3
2
1
To other Regula Connect Multi
4
3
2
1
To other Regula Connect Multi
Transformator
230 V 24 V
G0-
Blk
G+
Red
Blk
Red
NB: Wire colours
differ from standard
4.4.2 Example 1: Wiring scheme with
Regula Connect multi
Please visit www.lindQST.com and check out the
“Wiring scheme configurator” for your set-up.
4.4.3 Example 2: Wiring scheme with Regula
Connect basic
When a 4-pipe water connection
is ordered (plus feature),
an actuator can be connected on the
heating circuit as well.
(Geyed out).
When a 4-pipe water connection
is ordered (Plus feature),
an actuator can be connected on the
heating circuit as well.
(Geyed out).
Blu
Bro
NB: Wire colours
differ from standard
Actuator on/off
24V cooling
A
ctuator on/off
24
V
h
eat
i
n
g
g
Blu
B
r
o
NB
:
Wi
re co
l
our
s
d
i
ff
er
f
rom standard
5
4
Blu
Bro
2
1
Blu
Bro
1 Whi
2 Red
7
8
NB: Wire colours differ from standard
Condensation sensor
›
STANDBY
SERVICE
COOL
HEAT
OFF
Regula Combi
To other Regula Connect Basic
To other Regula Connect Basic
REGULA CONNECT
Heating in - S
Cooling in - S
Supply out - N
Supply out - L
Heating link_S
Cooling link_S
Supply link - N
Supply link - L
Heating link_S
Cooling link_S
Supply link - N
Supply link - L
Cooling out - S
Cooling out - N
Cooling out - L
Heating out - S
Heating out - N
Heating out - L
Supply in - N
Supply in - 24V - L
LINDAB
N = Neutral
L = Load
S = Signal
Basic
4
3
2
1
4
3
2
1
Whi
Grn
Bro
Yel
23
24
11
10
Transformator
230 V 24 V
G0-
Blk
G+
Red
Blk
Red
NB: Wire colours
differ from standard

19
Rc LINK
LINDAB
N = Neutral L = Load S = Signal
RC in/out
CO2 in - S
CO2 in - S
CO2 out - N CO2 out - L
Presence in - S
Presence in - S Presence out - N Presence out - L Damper out - S
Damper out - N
Damper out - L
Heating out - S
Heating out - N
Heating out - L
Cooling out - S
Cooling out - N
Cooling out - L
Supply in - N
Supply in 24V - L
REGULA CONNECT
Heating in - S
Cooling in - S
Supply out - N
Supply out - L
Heating link - S
Cooling link - S
Supply link - N
Supply link - L
Heating link - S
Cooling link - S
Supply link - N
Supply link - L
Multi
Rc LINK
REGULA CONNECT
Heating in - S Cooling in - S Supply out - N Supply out - L Heating link_S Cooling link_S Supply link - N Supply link - L Heating link_S Cooling link_S Supply link - N Supply link - L Cooling out - S Cooling out - N Cooling out - L Heating out - S Heating out - N Heating out - L Supply in - N Supply in - 24V - L
LINDAB
N = Neutral L = Load S = Signal
Basic
Pascal
REGULA CONNECT
Rc LINK Rc LINK
CO2 in - S1
CO2 in - S2
CO2 out - N CO2 out - L
Presence in - S1 Presence in - S2 Presence out - N Presence out - L Damper in - Pos Damper out - S Damper out - N Damper out - L Heating 0-10V- S Heating 0-10V- N Heating 0-10V- L Supply Link2 - N Supply Link2 - L Supply Link1 - N Supply Link1 - L Supply in - N Supply in-24V - L
LINDAB
N = Neutral L = Load S = Signal
RC in / out
Regula Secura
Installation instruction Plexus
Lindab reserves the right to make changes without prior notice
2021-03-02
lindab | we simplify construction
Lindab reserves the right to make changes without prior notice
2021-03-02
4.4.4 Regula Connect on the beam
Connect cards are pre-installed when the beam is ordered
with PLUS-features. See Regula Connect for more details.
Regula Connect Basic
Regula Connect Pascal
Regula Connect Multi
4.4.5 Regula Secura on the beam
Regula Secura is pre-installed when the beam is ordered
with PLUS-features. See Regula Secura for more details.
Condensation sensor and Regula Secura
Cable to Regula Secura
from sensor
4.4.6 Valves and Actuators on the beam
Description, see 2.16.3 and 2.16.4.
4.4.7 Regula Combi on/with the beam
The Regula Combi can be
controlled and programmed
locally in the display, or at a remote
location by a EXOLINE or MODBUS
communication system. Handles
both 24V and 0-10V devices.
See the Regula Combi
documentation.
4.4.8 Actuators
Description, see 2.16.4.
Inlet pipe
Strip
Strip
Battery
Faceplate
Condensation sensor

20
669x669
31
32
T24/T15 Lay-in-675 ( I-67 ) Water
T24/T15 Lay-in-
not cleanable
675
( I-67 ) Water
619x619
21
22
T24/T15 Lay-in-625 ( I-62 ) Water
T24/T15 Lay-in-
not cleanable
625 ( I-62 ) Water
( X ) Water
Ecophon Focus DS
Rockfon Sonar X
14
599x599
15
( Y ) Water
Danotile Markant
11
575x575
13
( Z ) Water
Rockfon E10 15
Ecophon - E / T15
10
584x584
10
( Y ) Water
Rockfon E10 24
Ecophon - E / T24
9
575x575
10
( I ) Water
Ecophon Focus DG
8
592x592
15
8
( X ) Water
Danotile Contur
Ecophon D
Rockfon D-XL
7
599x599
11
( X ) Water
Luxalon SQ Clip-In
6
600x600chamfer 45°x3
26
( X ) Water
Dampa Clip-in square edge
5
600x600
13
( X ) Water
Dampa Clip-in bevelled edge
4
600x600chamfer 45°x5
16
( I ) Water
Permanent ceiling
3
( I-60 ) Water
T24/T15 Lay-in 600
notcleanable
2
595x595
( I-60 ) Water
T24/T15 Lay-in 600
Danotile T24/T25
Echophon T24
Rockfon A24
1
595x595
Frame follows the box
Installation instruction Plexus
Lindab reserves the right to make changes without prior notice
2021-03-02
Lindab reserves the right to make changes without prior notice
2021-03-02
lindab | we simplify construction
5. Installation of product
5.1 Handling of product
For the handling of the product please refer to 2.5.
5.2 Adaption to ceiling systems
5.2.1 Ceiling systems