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LindabPlexus
Active chilled beam
Installation instructions
© 2025.02 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).
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Summary of Contents for Lindab Plexus I-60
- Page 1 Active chilled beam Installation instructions © 2025.02 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).
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Page 2: Table Of Contents
Water pipe dimensions and placement ....16 Turnable battery ...........36 4.2. Air connections............. 17 4.2.1 Air connection installation ........17 8. Accessories ..............38 4.2.2 Possible connections supply air ......17 Lindab reserves the right to make changes without prior notice 2025-02-01... -
Page 3: Lindab | F O R A Be Tt Er Cli Mat E
| f o r a be tt er cli mat e Installation instruction Plexus 1.2 Symbols 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 Heavy Load - 2 man job - place them on a dry and plain surface/ground. -
Page 4: Tools
You can also find relevant related documents with our Lindab Quick selection tool: Lindab´s water products can be ordered, to be adapted to a wide range of different ceiling systems, please check instal- 1. Visit www.lindQST.com... -
Page 5: Packing, Unpacking Guideline
| f o r a be tt er cli mat e Installation instruction Plexus 2.10 Packing, unpacking guideline 10-25 kg ! Lindab reserves the right to make changes without prior notice 2025-02-01... -
Page 6: Product Labelling
Goods mark: xx-xxxxxx-x Product ID: Sign: Plexus S60 Position of JetCone adjustment pins [Pa] JetCones Stat Date [Pa] [l/s] Signature stat Pos. [l/s] Rev. 04-2012 Plexus_label.indd 1 09-02-2016 14:15:56 Lindab reserves the right to make changes without prior notice 2025-02-01... -
Page 7: Order Code
| f o r a be tt er cli mat e Installation instruction Plexus 2.12 Order code Plexus I Plexus F xx-xxxxxxxx Order : xx-xxxxxx Batch : Integrated Free hanging PLE-X-X-xx-xx-xxx-Xx-xxxx- xx-xx-xx xx xxxxxx xx Goods mark: xx-xxxxxx-x Product ID:... -
Page 8: Contents Of Order
See also Adapter ring. 2.16.5 Integrated Regula components Order no: 647690, 884050 and 642623 (12 mm) Accessories › STANDBY COOL SERVICE HEAT Condensation sensor Regula Combi and Regula Secura Lindab reserves the right to make changes without prior notice 2025-02-01... -
Page 9: Product Specification
| f o r a be tt er cli mat e Installation instruction Plexus 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). -
Page 10: General Structure
Detailed information on this is formulated in BTGA Rule 3.002. This means the maximal working pressure for the products at a water temperature of 20°C must not exceed 10 bar. Lindab reserves the right to make changes without prior notice 2025-02-01... -
Page 11: Air Quality
| f o r a be tt er cli mat e Installation instruction Plexus • The water system must be filled (and re-filled) with clean • It can be further recommended (VDI/BTGA 6044 Part drinking water that complies with the “EC directive 4: 2023) to install a sensor-supported continuous moni- 98/83/EC”. -
Page 12: Connections
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. -
Page 13: Push On Valve
• Please refer to the suppliers manual. = 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. Lindab reserves the right to make changes without prior notice... -
Page 14: Possible Connections Water Cooling (2-Pipe, Standard)
Plexus I-60 A5, A6, B5, B6 Plexus I-120 A5, A6, B5, B6 Plexus IH-120 Plexus F-60 A5, A6 A1, B1 Plexus F-120 / FH-120 Plexus F-120 Possible 2-pipe water connections. Lindab reserves the right to make changes without prior notice 2025-02-01... -
Page 15: Possible Connections Water Cooling And Heating (4-Pipe, Plus Feature)
| f o r a be tt er cli mat e Installation instruction Plexus 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. -
Page 16: Water Pipe Dimensions And Placement
Plexus F 60 F-60: 2-pipe battery (standard). 27,5 27.5 F-120: 2-pipe battery (standard). 334,5 (F120 = 634,5) 334.5 (F120 = 634.5) F model: 2-pipe battery (standard). F model: 4-pipe battery (plus-feature). Lindab reserves the right to make changes without prior notice 2025-02-01... -
Page 17: Air Connections
Installation instruction Plexus 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 beneficially 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 direc- tions between connection and duct and avoid sound will be diverted from piping system to the ceiling. -
Page 18: Electrical Connections
Heating link - S Cooling link - S Supply link - N Supply link - L Supply in - N Supply in 24V - L LINDAB (with protection covers, optional). Lindab reserves the right to make changes without prior notice 2025-02-01... -
Page 19: Example
| f o r a be tt er cli mat e Installation instruction Plexus 4.4.2 Example 1: Regula Combi Wiring scheme with Regula Connect multi › Please visit www.lindQST.com and check out the “Wiring scheme configurator” for your set-up. -
Page 20: Regula Connect 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 Regula Secura Cable to Regula Secura from sensor Inlet pipe Strip Condensation sensor Strip Battery Faceplate Lindab reserves the right to make changes without prior notice 2025-02-01... -
Page 21: Installation Of Product
| f o r a be tt er cli mat e Installation instruction Plexus 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... -
Page 22: Adaption To Ceiling System
(S, L, M, H) 60 (S, H) 120 09, 11 Plexus I (S, L, M, H) 60 (S, H) 120 01, 21, 31 08, 09, 10, 11 10-25 kg ! Lindab reserves the right to make changes without prior notice 2025-02-01... - Page 23 | f o r a be tt er cli mat e Installation instruction Plexus Ceilingtype 03, Permanent ceiling, Plexus I Cutout dimensions in permanent ceiling: Plexus I (S/SA, L, M, H) 60 = 544 x 544 mm Plexus I (S/SA, H) 120...
- Page 24 | f o r a b e t t er c l i ma t e Installation instruction Plexus Ceilingtype 04, 05, 06, 07, 14, Plexus I (X) 04, 05, 06, 07, 14 10-25 kg ! Lindab reserves the right to make changes without prior notice 2025-02-01...
- Page 25 | f o r a be tt er cli mat e Installation instruction Plexus Freehanging, exposed, Plexus F Lindab reserves the right to make changes without prior notice 2025-02-01...
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Page 26: General Installation Principles
5.3.4 Free hanging above perforated or egg-crate ceiling 5.3.2 Exposed, sealed to the ceiling 5.3.5 Recessed in suspended (permanent) ceiling 5.3.3 Exposed, free hanging 5.3.6 Recessed in suspended (permanent) ceiling without cover flanges Lindab reserves the right to make changes without prior notice 2025-02-01... -
Page 27: Preparation For Installation On The Product
| f o r a be tt er cli mat e Installation instruction Plexus Ø 5.4 Preparation for installation on the product The beam is prepared for installation by hangers (4 x per beam). 4 turnable/bendable brackets on the Plexus’ models ensures the possibility to use different hanger systems. - Page 28 | f o r a b e t t er c l i ma t e Installation instruction Plexus 2. Pendulum hangers (in different sizes) 3. Wiring hanger system Please check local Lindab branches for local assortment. Lindab reserves the right to make changes without prior notice 2025-02-01...
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Page 29: Adjustment And Commissioning
The JetCone System enables an easy and fast adjustment in both pressure and air volume (primary airflow rate) through the front side. 6.1.1 Jetcone adjustment pins Plexus I-60 seen from below with faceplate of, showing the adjustment pin versions in plastic and aluminium. Adjustment pins Adjustment pins... -
Page 30: Finding Values For Jetcone Pins
Position of JetCone adjustment pins Δp [Pa] stat nature [l/s] 25-02-2016 15:48:12 6.1.3 Adjusting air flow and pressure with JetCone pins Symmetric adjustment Asymmetric adjustment Keep average value as read in diagram. (=4) Lindab reserves the right to make changes without prior notice 2025-02-01... -
Page 31: Adjustment Of Air Distribution Profile
6.3.1 Measuring static nozzle pressure and air pressure • To measure the air pressure, a manometer, ( analogue or digital ) will be needed. Lindab recommends PC410. • Insert the measuring tube onto the specialized measuring nozzle. -
Page 32: Plexus Pressure / Airflow Diagram
Position of JetCone adjustment pins Δp [Pa] stat gnature [l/s] 25-02-2016 15:48:12 Plexus M60 Position of JetCone adjustment pins Plexus M60 Position of JetCone adjustment pins Δp [Pa] stat nature [l/s] 09-02-2016 14:16:00 Lindab reserves the right to make changes without prior notice 2025-02-01... -
Page 33: Water Flow Rate
(planned) water flow rates (calculated with LindQST\waterborne calculator). Lindab refers to the proportional method, where all beams (panels or facade units) are balanced to the same proportion of the requested water flow rate. Lindab reserves the right to make changes without prior notice... -
Page 34: Maintenance
• Clean the top side of the battery, nozzle plate, JetCones and the mixing chamber with a dust cleaner / vacuum cleaner. 7.1 Remove the outlet front grille Not relevant for Plexus. 7.2 Open inlet faceplate 7.3 Opening inspection hatch Service wires Lindab reserves the right to make changes without prior notice 2025-02-01... -
Page 35: Lower Battery
| f o r a be tt er cli mat e Installation instruction Plexus 7.4 Lower battery Battery can only be lowered when the plus feature ”dropdown battery” is ordered. This plus feature is only available for Plexus-I models and not in combination with any other plus features integrated in the front plate (e.g. Regula Combi or/and presence... -
Page 36: Turnable Battery
(x2). H - Take out plugs from A6 holes. To be reused (x2). Battery has sharp edges! Press plug from outside into the Plexus for reuse Lindab reserves the right to make changes without prior notice 2025-02-01... - Page 37 | f o r a be tt er cli mat e Installation instruction Plexus 2. Reinstall battery as an A6 model Plug must be flush with A - Reattach faceplate service wires (x2) to brackets in A6 side inside wall.
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Page 38: Accessories
| f o r a b e t t er c l i ma t e Installation instruction Plexus 8. Accessories Ask Lindab for the accessories mentioned in this document. Additional accessories (or additional dimensions) are available on request.** Order code Order number... - Page 39 Lindab | For a better climate www.lindab.com www.lindab.com For a better climate Lindab reserves the right to make changes without prior notice 2025-02-01...
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