AI Air Duct Systems 1020

Assembly, measuring, balancing and maintenance

Air Duct Systems

l indab | air duct systems

2ContentType-approved ducts and ttings Lindab Safe and Lindab Safe Click .......................................................3

Cleaning covers EPFH, ESHU, KCU, KCIVU, KCRU, KC ..............................................10EPFH with bayonet locking .................................................................11EPFH, KCU, KCIVU, KC ......................................................................12

Access doors IPRD ....................................................................................................13IPF .......................................................................................................14IPLR .....................................................................................................15

Silencers SLCU, SLBCU, SLGU, SLBGU, BSLCU, LRCA, LRCB, LRBCB ........16

Dampers DRU, DSU, DTU, DTHU, DTBU, DTBCU, DTPU,PSDRU, TDRU, TDSU, TASU, TATU, TATBU .......................................17LKSR ...................................................................................................20

Constant/variable ow dampers DAU, DA2EU, DAVU ............................................................................21DAU, DA2EU, DAVU ............................................................................23

Measuring bends MBU, MBFU ........................................................................................24

Flow meters FMU, FMDRU ......................................................................................25FMDU ..................................................................................................26

Damper with ow meter DIRU ....................................................................................................27DIRBU ..................................................................................................32DIRVU ..................................................................................................33

Duct systems Transfer ................................................................................................34

Sealing clamp SVK ......................................................................................................35

Membrane lead-throughs MG, MGL .............................................................................................36

Roof hoods H, HV, HU, HN, HF, VHL, HRR, HVR, LHR, HKOMR, TGR, TGKOMR 37

Sliding dampers SKMTR, SKPTR ...................................................................................38

Exhaust air terminal device SLKNU .................................................................................................41

Flexible ducts . ............................................................................................................42

Rectangular duct system RJFP ....................................................................................................45

Diffuser VVTK ....................................................................................................50VTTB ....................................................................................................52SHH .....................................................................................................54

Valve KPT ......................................................................................................56KI .........................................................................................................58KIR .......................................................................................................60TAV ......................................................................................................62KVB......................................................................................................63KDPF ...................................................................................................65KVG ....................................................................................................67KU ........................................................................................................71KSU .....................................................................................................73KSUL ...................................................................................................75KPF ......................................................................................................77

Valve and re damper KSUB ...................................................................................................79

Cover TLO ......................................................................................................81

397TG

1358/88

64

TG 1

358/

88

1819

/533

/90 Lindab Safe Click

BU 125 90 GALV

97TG 1358/88

The Lindab Safe and the Lindab Safe Click duct system are type-approved, as per certi cate no. 1358/88 issued by SITAC and are subject to continuous production checks.

This means that the requirements for air tightness class D are met if ducts and ttings of the systems are used and if assembly is performed as per these instructions.

The products covered by the type approval are either speci ed on the delivery note or are supplied with the following labelling. Labelling can comprise a sticker or an embossing on the sheet metal.

NOTE! The assembly methods described herein only cope with the forces from the Static pressure limits de ned in EN 12237. Forces from other sources, e.g. gravity or wind, have to be dealt with using other means, e.g. suspensions or supports.

NOTE! If the system shall be tested for air tightness, this shall be done before integration and insulation so that there is an opportunity for inspection and taking action. Any complaints regarding air tightness will only be dealt with provided the system is fully accessible for inspection.

Joining systems (general characteristics)

Lindab Safe Lindab Safe Click

Is joined with screws or blind rivets.Is joined with snapping heels, below called notches. Is based on Lindab Safe.

Spans all dimensions.Spans only a restricted number of dimensions. See table 2. For the other dimensions use Lindab Safe.

Lindab Safe Click can be complementary joined with screws or blind rivets.

This may be done in order to:

achieve a stronger joint

prevent a joint from twisting

join a Click product with a non-Click product

join a Click product with a non-Click product to create an openable joint.

Type-approved ducts and ttings

Lindab Safe and Lindab Safe Click

4H

L

Preparations for assembly Check that ducts and ttings to be used in the system are labelled as shown above.

Store ducts and ttings in a well-ordered and weatherproof storage area to minimize the risk of damage. Do not use ducts or ttings that have been damaged in such a way that they jeopardise the air tightness or structural strength of the system.


Cut ducts at right angles. Carefully remove any burrs from cut edges. Installation is easier and the risk of damaging the gasket is reduced if there are no burrs.Also cut away the two needles created from the fold.

Cut ducts at right angles. This is an uncompromisable demand for Lindab Safe Click. Carefully remove any burrs from cut edges. Installation is easier and the risk of dam-aging the gasket is reduced if there are no burrs.Also cut away the two needles created from the fold.

If a duct is cut make notches around its circumference. See table 1 and 2.

Carefully seal any holes left by measurements, removed screws, blind rivets, etc.

Carefully seal any holes left by measurements etc.

Table 1. Size and location of notches

Table 2. Number of fasteners and notchesLindab Safe Lindab Safe Click

Click Pliers"old" 40.1 60.1

[mm]

Minimum number of fasteners required to achieve suf cient strength.

Recommended number of notches required to achieve suf cient strength.

63 2

80112 2 4 2

125160 3 4 4

180224 3 8 4

250315 4 4

355630 4

7101250 6

14001600 10

Depending on the means of suspension, a larger number of fasteners than this may be required to achieve suf cient structural strength of a duct system.

Depending on the means of suspension, a larger number of notches than this may be required to achieve suf cient structural strength of a duct system. A greater number of notches makes it harder to assemble the parts

Click Pliers

"old" 40.1 60.1

[mm]

Hmin[mm]

Hmin[mm]

Hmin[mm]

L[mm]

80224 1,4 2,0 30,532,5

250315 2,5 50,552,5

5GTG

1358/88

G

TG 13

58/88

Lindab Safe ClickLindab Safe

G

TG 13

58/88

GTG

1358/88

TG 13

58/88

1

3

4

5

6

Assembly


1 Insert the ttings turned-over edge into the duct. 1 Insert the ttings turned-over edge into the duct.

2 Check that the gasket's rst lip is in contact with the duct's edge all the way around and points straight out so that the lip is not twisted in any direction.

2 Check that the gasket's rst lip is in contact with the duct's edge all the way around and points straight out so that the lip is not twisted in any direction.

3 Push the rest of the tting into the duct. Twisting the tting slightly aids insertion.

3 Push the rst part of the tting into the duct to just before the notches. Twisting the tting slightly aids insertion.

4 Secure the tting in the duct using self-tapping screws or airtight blind rivets. NOTE! Use only the types allowed by Lindab when going for tightness class C or D. See table 3.

4 Push the rest of the tting into the duct and over the notches. Bend the tting or duct back and forward slightly in order not to pass all notches at the same time aids insertion.

5 Fasteners should be positioned 1015 mm from the duct's end to prevent damage to the gasket.

5 The tting is secured to the duct when the tting's end has snapped behind all the notches.

6 Always position fasteners at the present largest radial gap between tting and duct. Be sure to achieve an even distribution around the circumference.

6 After assembly it's possible to rotate the tting.

GTG

1358/88

Screw or blind rivet

6d

D

LL

d

D

L

Table 3. Allowed and banned screws and blind rivets

Screw with sharp tip

Very tight

Strong since it forms a collar in the thin sheet metal

Allowed by Lindab

Screw with reduced drill tip

Very tight

Strong since it only drills off a small part of the thin sheet metal

Allowed by Lindab

Screw with drill tip

Not tight

Weak since it drills off a big part of the thin sheet metal

Banned by Lindab

Pressure-tight blind rivet

Very tight

Strong

Very laborious to install

Allowed by Lindab

Blind rivet

Not tight if the inner splint falls out

Strong

Laborious to installBanned by Lindab

7Lindab Safe Click

Hints!Turning and bending the tting slightly as you insert it into the duct aids assembly and removal.

If ducts and ttings are round, assembly is much easier. Lindab has placed high demands on roundness during the design and production stages, but large heavy ttings in particular have a tendency to be slightly oval because of their weight. These often become round when suspended, which is why you should use the brackets to make the compo-nents round and in this way simplify assembly.

Carefully tapping the surface of the duct with your hand normally makes assembly a lot easier, as it reduces the friction between duct and tting, and the tting tries to move to the right side if there are burrs and irregularities.

When cutting, be sure to remove burrs properly. Also cut away the two needles created from the fold.

For larger dimensions, Lindab has moved the gasket away from the edge, which makes assembly much easier.

If you have to reinstall a product, take care to seal old holes from screws or blind rivets which can cause leaks and noise.

Products with special sealsSome ttings, such as the collar saddle PSU, T-pieces TSTCU, TSTU and take-offs ILRU, ILU, ILF, have one more con-nection than Lindab Safe or Lindab Safe Click. This connection must be sealed so that they de nitely meet the require-ments for air-tightness class C or D. Sealing material used must be durable and permanently elastic.

Products without ClickSome ttings, such as the slide-in female coupling SMFU, the end caps EPF and ESU and of course the cleaning covers EPFH, ESHU, KCU and KCIVU, do not have any Click function in order to make them easier to remove.

Use of products other than Lindab Safe or Lindab Safe ClickProducts that do not formally ful l the requirements for air tightness class C or D may only be used to a small extent. If such items are used, they must be carefully checked with regard to seal design and strength. They must be sealed so that they de nitely meet the requirements for air-tightness class C or D. Sealing material used must be durable and permanently elastic.

To join parts temporarily to check if length of duct or system run is all right.


Solution:

1 Join together to check.2 Then take apart and cut if necessary the duct length.3 Join together with screws or blind rivets.

Solution 1:

1 Use a duct without notches in the end/ends.2 Join together to check.3 Then take apart and cut if necessary the duct length.4 Make notches in the duct.5 Click-join together.

Solution 2:

1 Use a duct with notches in the end/ends.2 Join together to check but dont join the parts com-

pletely so they click together.3 Then take apart and cut if necessary the duct length

and make new notches.4 Click-join together.

8To lengthwise adjust joined products instead of cutting the duct.


Solution:

1 Use products with sliding property. E.g. slide-in cou-pling SNPU or slide-in female coupling SMFU.

2 Join together with screws or blind rivets.

Solution:

1 Use products with sliding property. E.g. slide-in cou-pling SNPU or slide-in female coupling SMFU.

2 Join together with screws or blind rivets.

Slide-in female couplingSlide-in coupling

Cutting duct with the SR Cutter

Suspension

Mount the hangers in a straight line and as close to every joint as possible. Fix with an extra screw when needed for extra stability.

Corners out of angle and curved walls

Mount the next piece of duct at an angle, but make sure that the rubber sealant is not visible. Put screws or blind rivets where the notches have not clicked in position.

In situations where the mounting must be locked, e.g. when a bend is mounted to a duct and it twists down-wards the oor. Mount the rst hanger and mount the bend, then lock the joint with a screw or blind rivet.

The joint must be locked

9Lindab Safe Click

To separate joined products.


Solution:

1 Unscrew the screws or drill away the blind rivets.2 Twist the product loose.3 The tting will now have leaking holes but can be

reused if these holes are carefully sealed off with mastic or tape.

Solution:

1 Drill a 5 mm hole in the duct 4 mm behind the notch with the drill angled backward and

2 turn in the same moment the drill back so the tting and duct are separated somewhat from each other. With the right technique the tting remains undamaged and can be reused.

3 Repeat if necessary at more notches.4 Twist the product loose.5 Cut away the drilled through duct end.

Dismantling

5 mm drill Angle and press the drill backwards

Take apart

10

Cleaning covers

EPFH, ESHU, KCU, KCIVU, KCRU, KC

Assembly The simplest way to install the cleaning covers is by turning and pressing them at the same time.

The simplest way to remove the cleaning covers is by turning and pulling them outwards at the same time (not KCRU).

MaintenanceThe cleaning covers normally don't require any mainte-nance, but as they are used in duct systems that need to be cleaned, they should be cleaned at the same time as the system.

11

Cleaning cover

EPFH with bayonet locking

Assembly The cover can, if you prefer, be installed simply by putting it into position.

However, if there is a risk that it can be pushed off (e.g. at positive pressure), you should ensure that it is held in position by two suitable blind rivets. In that case, proceed as follows:

Mark the holes for the rivets.

Remove the cover and drill holes for the rivets.

Insert the rivets so that they extend past the drilled holes. A recommended airtight blind rivet has 4.0 and is 9.5 mm long, for example.

Press on the cover again so that the rivets enter the slots and then turn clockwise to snap into place.

Attach the cover at its intended location and in a suitable position. Ensure that it is secure and level all around.

12

Cleaning covers

EPFH, KCU, KCIVU, KC

Risk of gaps Insulation sealed tight around casing

Cleaning cover Joint in insulation

Edge of cover

Fire protection assembly instructionCovers with different levels of re protection are avail-able. The re class is speci ed on the covers label. In certain cases, the re class requires that covers be placed at a speci c safety distance from in ammable materials in a structural element or in ammable xed equipment.

Fire protection classes for ventilation systems require cleaning covers to have at least the same class as con-necting system or system part.

When lining the duct system with re-resistant material, check:a) that the insulation forms a tight seal around the

casing of cleaning covers.The risk of gaps occurring is particularly signi cant if insulation with joints is applied to covers.

b) that the insulation is level with the edge between the covers casing and top.

13

Access doors

IPRD

1. Required aperture for door is 32mm smaller than door size being used, eg 250 x 250mm door hole size is 218 x 218mm.

2. Mark location on duct surface at correct dimensions required for hole size and cut out aperture.

3. Remove door panel.

4. Offer frame into aperture ( g1) and hold in place by pressing down two tabs from diagonally opposite corners ( g2).

5. Fix frame in position by hammering down the remain-ing tabs onto the interior of the duct wall ( g3).

6. The door panel is placed into the frame ( g 4) and located by setting the cam fasteners to provide the degree of tightness required.

Complete panel, frame and gasket tape system.

User friendly cam fasteners.

Rockwool in ll provides thermal insulation.

Compression locking stop which locates the cam fasteners thus holding the door panel in position.

Radiused formed tabs which reduce the risk of injury on site from sharp edges, allow easy xing to the duct wall.

Self Adhesive Gasket tape is tted to the inside and outside doorframe, thus the door panel is sealed against the frame and the frame is sealed against the duct wall.

High performance acoustic integrity eliminating the need to be covered when acoustic duct lagging is to be applied to the duct

14

Access doors

IPF

Ductmate sandwich access doors offer a cost effective and convenient solution to the problem of gaining access to rectangular ductwork for maintenance or cleaning. Manufactured in a wide variety of sizes Ductmate sandwich access doors also offer the following bene cial features:

Two sheet metal construction formed by precision stamping to provide increased strength.

Aesthetic appearance.

User friendly hand knobs to facilitate easy opening and closing without the need for special tools.

Conical pring design which enables the two piece door to perform as a single unit.

Opening cut in the duct wall permits the back plate or inner plate to slip easily through and due to the neoprene gasket, form an airtight seal.

Three piece thermally insulated version available.

Installation

1. A self adhesive template is provided with certain doors to assist in cutting the correct apertures size. If a template is not provided, the door can be utilised as a template. Position the door and mark around the perimeter. Cut aperture 15mm inside the de ned perimeter.

2. Unscrew hand knobs until the knobs sit at the end of the screw. Slip inner plate through duct opening at an angle. Align into position and tighten up the hand knobs.

15

Access doors

IPLR

Two sheet metal construction formed by precision stamping to provide increased strength.

Aesthetic appearance.

User friendly hand knobs to facilitate easy opening and closing without the need for special tools.

Conical spring design which enables the two piece door to perform as a single unit.

Oval shaped opening cut in the duct wall permits the back plate or inner plate to slip easily through and due to the neoprene gasket, form an airtight seal.

Installation

1. A self adhesive template is provided with certain doors to assist in cutting the correct apertures size. If a template is not provided, the door can be utilised as a template. Position the door and mark around the perimeter. Cut aperture 15mm inside the de ned perimeter.

2. . Unscrew hand knobs until the knobs sit at the end of the screw. Slip inner plate through duct opening at an angle. Align into position and tighten up the hand knobs.

1. Stick self adhesive template on to duct (a template is provided with each door).

2. Cut out aperture (there is a tolerance of + 3 mm).

3. Install door by unscrew-ing the hand knobs until thread is level with top of bolt. Using both hands place the door in the hole at an angle, turn straight and pull out slightly to align. Then tighten knobs.

16

Silencers

SLU, SLCU, SLGU, SLBU, SLCBU, SLBGU, BSLU, BSLCU, LRCA, LRCB, LRBCBAssembly In order to fulfil the requirements for air-tightness class D, the silencers must be installed as per Assembly Instruction Lindab Safe.

LRCA, LRCB and LRBCB comply with air-tightness class C.

For dimension 400 and larger, the loose inlet plugs must first be secured in the silencer (does not apply to LRCA, LRCB and LRBCB).

Catalogue values for attenuation are specified for installations in a straight duct, where the sound field have been guided straight. Positioning in a diffuse sound field, e.g. immediately after a fan or bend, means better attenuation.

Installation of two similar silencers in line immediately after each other means that you cannot completely count the silencing of the second silencer. For large draughts, the second silencer only contributes a few dB at 1000 Hz and 10 or so dB at high and low frequencies.

MaintenanceThe silencers normally don't require any maintenance.

Silencer Insulationthicknessnominalmm

Diameternominal

mm

Fireclasses

SLCUBSLCU

5080400

125315EI 30, E 120

SLCUBSLCUSLCBU

10080800

125630315800

EI 60, E 120

SLGUSLBGU

10080800

315800EI 15, E 60

SLGU 150 80250 EI 30, E 60

Alternative to fire classes according to BBR 5:6213To make use of the silencer's alternative to fire classes:

must the protective distance according to the table below be embodied.

mustn't the silencer's surface be changed, e.g. by paint coating.

Silencer Insulationthicknessnominal

mm

Diameternominal

mm

Alternative tofire classesaccording toBBR 5:6213

Protective distance atthe radiation intensity of

3 kW/m(evacuationperson)mm

10 kW/m(fittings mtrl.)

(combust. mtrl.)mm

30 kW/m(building mtrl.)

(wood)mm

SLCU BSLCU

5080400

125315EI 120 50 5 5

SLCU BSLCU SLCBU

10080800

125630315800

EI 120 50 5 5

SLGU 100

80315 EI 6050

5 5400800

EI 30

EI 60 500

SLBGU 100

315 EI 6050

5 5400800

EI 30

EI 60 500

SLGU 150 80250 EI 60 50 5 5

Fire classes

17

Dampers

DRU, DSU, DTU, DTHU, DTBU, DTBCU, DTPU,PSDRU, TDRU, TDSU, TASU, TATU, TATBUAssembly In order to ful l the requirements for air-tightness class D, the dampers must be installed as per Assembly Instruction Lindab Safe.

For certain manual dampers, there is the option of adding a motor later on.

The dampers allow 50 mm duct insulation without the knob being hidden. For 100 mm duct insulation, there is an insulation cup, IK, for DRU, DSU, DTU, TASU and TATU.

Accessories to use when assembly damper motors on site

MotorDamper type

Standard damper with knob and standard shaft

Damper DTHU with KOMHY and long shaft

Belimo LM LMOK + VREDF 15 60 (The motor ts immediately)

Belimo NM LMOK + VREDF 15 100 or KOMHY + VREDF 15 60 (The motor ts immediately)

Belimo SM KOMHY + VREDF 15 60 (The motor ts immediately)

Belimo LF KOMHY + VREDF 15 100 (The motor ts immediately)

Belimo AF KOMHY + VREDF 15 100 (The motor ts immediately)

Sauter AK 31 P KOMHY + VREDF 15 100 + MSATS AK 31 P MSATS AK 31 P

Sauter AK 41 P KOMHY + VREDF 15 100 + MSATS AK 41 P MSATS AK 41 P

Sauter AK 42 P Special shelf + VREDF 15 100 + MSATS AK 42 P The motor does not t

Dampers in dimension 7101000 can not be motorized on site.

PSDRU, TDRU and TDSUThe dampers are installed by inserting the two guide pins on the T-piece or saddle into the L-shaped slots on the dampers. The dampers are then locked by turning them slightly clockwise.

BalancingOn DRU, PSDRU and TDRU the damper blade is step-less adjustable through 090 (0=fully open, 90=com-pletely closed) using the knob in the cup. Locking is performed using screws for Pozidrive (PZD2) and the damper angle can be read off a stamped grade on the edge of the cup. Other types of damper normally only work in the fully open or completely closed positions.

On motorized shut-off dampers, DTBU, DTBCU, TATBU and DTPU and on damper DTHU, which is adapted for a motor, the shaft end for the motor is equipped with a notch showing the position of the damper blade.

Manual dampers

18

Dampers

DRU, DSU, DTU, DTHU, DTBU, DTBCU, DTPU, PSDRU, TDRU, TDSU, TASU, TATU, TATBUTechnical data for the motors LM 24 A-F LM 230 A-FPower supply ............................ AC 19,228,8 V, 50/60 Hz AC 65265 V, 50/60 Hz

DC 19,228,8 V Power consumption .................. 1 W 1,5 WFor wire sizing ........................... 2 VA 4 VAConnection ................................ Cable 1 m, 30,75 mm2 Cable 1 m, 30,75 mm2Operating angle ......................... Max. 95, adjustable 0100% Max. 95, adjustable 0100%Torque at rated voltage ............. Min. 5 Nm Min. 5 NmDirection of rotation ................... Switch selectable Switch selectable

0 or 1 0 or 1 Position indication ..................... Mechanical MechanicalRunning time for 95 ................ 150 s 150 sSound power level..................... Max. 35 dB (A) Max. 35 dB (A)Protection class ......................... III Safety extra-low voltage II Safety insulatedProtection type .......................... IP 54 IP 54Ambient temperature range ...... -30 to +50C -30 to +50CAmbient moisture ...................... 95 % RH 95 % RH

NM 24 A-F NM 230 A-FPower supply ............................ AC 19,228,8 V, 50/60 Hz AC 85265 V, 50/60 Hz

DC 19,228,8 V Power consumption .................. 1,5 W 2,5 WFor wire sizing ........................... 3,5 VA 6 VAConnection ................................ Cable 1 m, 30,75 mm2 Cable 1 m, 30,75 mm2Operating angle ......................... Max. 95, adjustable 0100% Max. 95, adjustable 0100%Torque at rated voltage ............. Min. 10 Nm Min. 10 NmDirection of rotation ................... Switch selectable Switch selectable


SM 24 A SM 230 APower supply ............................ AC 19,228,8 V, 50/60 Hz AC 85265 V, 50/60 Hz



+

1 2 3

0

1

+

1 2

0

3

0

1

+

1 2 3

0

1

+

1 2

0

3

0

1

+

1 2 3

0

1

+

1 2

0

3

0

1

19

Dampers

DRU, DSU, DTU, DTHU, DTBU, DTBCU, DTPU, PSDRU, TDRU, TDSU, TASU, TATU, TATBU

GM 24 A GM 230 APower supply ............................ AC 19,228,8 V, 50/60 Hz AC 85265 V, 50/60 Hz

DC 19,228,8 V Power consumption .................. 4,5 W 4,5 WFor wire sizing ........................... 7 VA 7 VAConnection ................................ Cable 1 m, 30,75 mm2 Cable 1 m, 30,75 mm2Operating angle ......................... Max. 95, adjustable 0100% Max. 95, adjustable 0100%Torque at rated voltage ............. Min. 40 Nm Min. 40 NmDirection of rotation ................... Switch selectable Switch selectable


+

1 2 3

0

1

+

1 2

0

3

0

1

Dampers with dimension 9001000 are equipped with two GM motors. The two motors must be activated with the same control signal so the motors do not work counteract to each other.

20

Damper

LKSR

Assembly In order to ful l the requirements for air-tightness class C, the damper must be installed as per Assembly Instruction Rectangular air duct systems.

For the damper, there is the option of adding a motor later on.

The damper allows a 50 mm duct insulation without the knob being hidden. For 100 mm insulation, an insulation cup, IK, is available.

BalancingOn LKSR the damper blade is adjusted through 090 (0 = fully open, 90 = completely closed) using the knob in the cup. Locking is performed using screws for Pozidrive (PZD2) and the damper angle can be read off a stamped grade on the edge of the cup.

Manual damper can be supplemented with a sturdy handle to facilitate adjustment.

MaintenanceThe damper and motor normally don't require any main-tenance.

21

Assembly In order to ful l the requirements for air-tightness class D, the devices must be installed as per Assembly Instruction Lindab Safe.

The devices must be installed with the air ow in the direction of the arrow.

The devices allow 50 mm duct insulation without the scale or any motor being hidden.

Pressure range

501000 Pa over the unit.

Interference sensitivity

In order to achieve stated precision for the set ow, a straight duct of at least 3d before and 1.5d after the devices is required. A assembly close to a source of interference (bend, saddle, etc.) reduces control accu-racy and the ow can deviate from the set value.

Changes in direction

The units are independent of their direction of installa-tion; you can deviate from the projected direction and install them in any direction you like without affecting accuracy.

Systematic error

Control accuracy

The devices are calibrated within their entire operating range at the factory. This means the devices keep the ow constant to within approx. 5 to 10 % of the set ow. Larger deviations occur at lower ows, especially with small sizes.

MaintenanceThe devices normally don't require any maintenance, but should be protected from contaminated air wherever possible.

CE markingOur dampers with electrical actuator are regarded as a component in the duct system and does not need to be CE marked separately.

Their electrical actuators on the other hand are part of the electrical system and are CE marked. Declaration of compliance with the essential requirements can be found at www.belimo.ch .

Scale arrow

Center nut

Balancing

DAU

The ow is adjusted by loosening the central nut and using the knob to turn the scale arrow so that it points to the desired ow on the scale. The nut is then locked.

Constant/variable ow dampers

DAU, DA2EU, DAVU

22


DAU, DA2EU, DAVU

DA2EU

Setting of ows

The two ows are set by moving the end stops. At deliv-ery the stops are set at largest possible distance. If you want to limit the ow span proceed in the following way:

1. The one ow is set by turning the spindle so that the scale arrow points at the desired ow and thereafter move one of the end stops close up to the clamp's one heel and lock the stop there.

2. The other ow is set by turning the spindle so that the scale arrow points at this ow and thereafter move the other end stop close up to the clamp's other heel and lock this stop there.

Choice of ows

The one ow is chosen by feeding an operating voltage. This voltage, 24 or 230 V, turns the motor to one of the stops.

The other ow is chosen by breaking the operating volt-age. The motor then goes to the other stop.

Technical data for the motors LM 24 A LM 230 APower supply ............................ AC 19,228,8 V, 50/60 Hz AC 65265 V, 50/60 Hz



+

1 2 3

0

1

+

1 2

0

3

0

1

BELIMO REnd stop screws

Made in Switzerland

LM230A

0

1

23

DAVU

Setting of ow limits

The two ow limits are set by moving the end stops. At delivery the stops are set at largest possible distance. If you want to limit the ow span proceed in the following way:

1. The one ow limit is set by turning the spindle so that the scale arrow points at the desired ow and thereaf-ter move one of the end stops close up to the clamp's one heel and lock the stop there.

2. The other ow limit is set by turning the spindle so that the scale arrow points at this ow and thereaf-ter move the other end stop close up to the clamp's other heel and lock this stop there.

3. The motor shall then be adapted so that the regulat-ing span 210 V adapts to the thus set ow span. This is done by a push on the "gear disengagement" button. The motor then automatically performs a stroke between the ow limits.

Choice of ow

The ow is chosen by feeding a control signal. This signal, 210 V, sets the motor in a proportional position between the ow limits.

BELIMO RMade in Switzerland

LM24 A-SX

0

1

End stop screws

Technical data for the motor LM 24 A-SXPower supply ............................ AC 19,228,8 V, 50/60 Hz

DC 21,628,8 VPower consumption .................. 2 WFor wire sizing ........................... 4 VAConnection ................................ Cable 1 m, 40,75 mmOperating angle ......................... Max. 95, adjustable 0100 %Torque at nominal voltage ......... Min. 5 NmDirection of rotation ................... Switch selectable 0/1Position at Y=0 V ....................... Switch selectable 0 or 1 Position indication ..................... MechanicalRunning time for 90 ................ 150 sSound power level..................... 35 dB (A)Protection class ......................... III Safety extra-low voltageProtection type .......................... IP 54Ambient temperature range ...... -30 to +50 CAmbient humidity ...................... 95 % RH


DAU, DA2EU, DAVU

+

1 2 3 5

UY DC 010 V

DC 210 V

24

Measuring bends

MBU, MBFU

Assembly In order to ful l the requirements for air-tightness class D, the bends must be installed as per Assembly Instruc-tion Lindab Safe.

The bends allow 50 mm duct insulation without the measuring points being hidden. For 100 mm insulation, an insulation cup, IK, is available.

MeasurementBy measuring the pressure difference p in Pa at the measuring points, you can achieve a ow q in l/s using the equation on the devices.

The speci ed ows only apply for air with a density of 1.2 kg/m3. For air of another density (other) the ow (qother_density) is achieved as per the formula:

qother_density = qequation

DeviceDimension

mmk-factor

MBU

100 6.85

125 10.3

160 17.0

200 26.3

250 41.7

315 65.0

MBFU

400 115

500 179

630 283

Systematic errorStraight stretches are required in order to achieve ows as per equations with speci ed accuracy. The sys-tematic error m2 is 5% and 10% below the minimum requirements for straight stretches as speci ed.

MaintenanceThe measuring bends normally don't require any main-tenance.

CleaningThe device does not limit cleaning opportunities.

other

25

Flow meters

FMU, FMDRU

Assembly In order to ful l the requirements for air-tightness class D, the devices must be installed as per Assembly Instruction Lindab Safe.

FMDRU must be installed with the air ow in the direc-tion of the arrow.

The devices allow 100 mm duct insulation without sticker or measuring points being hidden. The cup around FMDRUs damper knob allows 50 mm duct insulation without the knob being hidden. For 100 mm insulation, an insulation cup, IK, is available.

For optimum readability (regardless of the installation position), the plate with the sticker can be turned, folded up to prevent it disappearing in any insulation or to be easily removed and positioned separately from the device.

MeasurementBy measuring the pressure difference p in Pa at the measuring points, you can achieve a ow q in l/s using the equation on the devices.

With FMDRU you can set the desired ow, as the damper blade is adjustable through 090 (0=fully open, 90=completely closed) using the knob in the cup. Lock-ing is performed using screws for Pozidrive (PZD2) and the damper angle can be read off a stamped grade on the edge of the cup.



Dimensionmm

k-factor

80 63 4.40

100 80 7.32

125100 11.2

160125 18.0

200160 29.4

250200 45.7

315250 73.3

400315 116

500400 191

630500 283

Systematic errorStraight stretches are required in order to achieve ows as per equations with speci ed accuracy. The sys-tematic error m2 is 5% and 10% below the minimum requirements for straight stretches as speci ed. For these minimum straight requirements do not install measuring points in line with the nearest bends inside radius.

MaintenanceThe devices normally don't require any maintenance.

CleaningFMU does not limit cleaning opportunities.

other

26

Flow meter

FMDU

Assembly In order to ful l the requirements for air-tightness class D, the device must be installed as per Assembly Instruc-tion Lindab Safe.

The device must be installed with the air ow in the direction of the arrow.

The device allows 50 mm duct insulation without sticker or measuring points being hidden.

The cup around the damper knob allows 50 mm duct insulation without the knob being hidden. For 100 mm insulation, an insulation cup, IK, is available.

For optimum readability (regardless of the installa-tion position), the plate with the sticker can be turned or easily removed and positioned separately from the device.

MeasurementBy measuring the pressure difference p in Pa at the measuring points, you can achieve a ow q in l/s using the equation on the device.

You can set the desired ow, as the damper blade is adjustable through 090 (0=fully open, 90=completely closed) using the knob in the cup. Locking is performed using screws for Pozidrive (PZD2) and the damper angle can be read off a stamped grade on the edge of the cup.



Dimensionmm

k-factorColour coding for measuring

points

80 2.99 transparent

100 4.90 red

125 7.95 green

160 13.8 yellow

200 21.3 blue

250 34.6 black

315 57.8 white

400 88.8 transparent

500 146 red

630 234 green

other1,2

Systematic errorStraight stretches are required in order to achieve ows as per equations with speci ed accuracy. The sys-tematic error m2 is 5% and 10% below the minimum requirements for straight stretches as speci ed.

MaintenanceThe device normally doesn't requires any maintenance.

27

Damper with ow meter

DIRU

AssemblyMount the dampers according to Assembly Instructions Lindab Safe to meet with the requirements fro Tight-ness class C.

Consider required straight distance after or before disturbance, as mentioned on the card attached to the measurement nozzles, to obtain accurate ow meas-urement. Dampers with dimension 400, 500 and 630 are provided with transport protections. Remove these before assembly.

The damper may not be loaded with weight from con-nected ducts, specially when assembly vertically.

MeasuringBy measuring the pressure difference p in Pa between the measure nozzles, you can through the equation q = k p on the damper derive the ow q [l/s]. Do not forget to plug up the nozzles after measuring.

The received ow is counts for air with the density 1.2 kg/m (at 20C). For air with other density (other) calcu-late the ow (qother density) with the formula

qother density = qequation other1,2

2

2

33

1

BalancingConnect the measuring hoses to the damper measuring nozzles.

Loosen the locking screws (3), which have Philips slot no.1. adjust the handle so that requisited pressure drop receives. Fasten the screws (3) and remount the tight-ness screws (2), so that the slot gets airtight.

For dimension 400,500 and 630 - remove the tightness screws (2). Then loosen the locking screws (3), which have Philips slot no. 2. Adjust the handle so that requis-ited pressure drop receives. Fasten the screws (3) and remount the tightness screws (2), so that the slot gets airtight.

Disconnect the hoses and plug the nozzles.

Measurement accuracyConsider required straight distance after or before disturbance, as mentioned on the card attached to the measurement nozzles, to obtain accurate ow measure-ment.

MaintenanceThe product normally doesn't requires any maintenance.

CleaningBy fully open the damper, one get access to the duct. Do not forget to readjust the damper after cleaning.

28


DIRU, DIRBU, DIRVU

15 20 30 40 50 100q

10

20

30

4050

100

200

300

p

k

[m/s]

[l/s]

[Pa]

2 3 4 5 10v

1,5 2,0 2,5 3,0 3,5 4,0 4,5

5,0 5,56,0

100

25 30 40 50 100 150q 10

20

30

4050

100

200

300

p

k

[m/s][l/s]

[Pa]

3 4 5 10v

1,5 2,0 3,0 4,0 5,0

6,0 7,0 8,0

9,0

10

125

35 40 50 100 150 200q

10

20

30

4050

100

200

300

p

k

[m/s]

[l/s]

[Pa]

2 3 4 5 10v

3,5 4,0 5,0 6,0 7,0 8,0 9,0 1012

15

150

40 50 250100 150 200q

10

20

30

4050

100

200

300

p

k

[m/s]

[l/s]

[Pa]

2 3 4 5 10v

3,5 4,0 5,0 6,0 7,0 8,0 109,0 1215

16

160

60 400300100 150 200q

10

20

30

4050

100

200

300

p

k

[m/s]

[l/s]

[Pa]

2 3 4 5 10v

7,0 8,0 9,0 10 12 15 20

25

29

200

q1510 20 30 40 50 6010

20

30

4050

100

200

300

v111098765432

[Pa]

[l/s]

[m/s]

p

k80

1,51,0 2,0 2,5 3,0 3,5

4,0

Flow graph for balancingThe curves show the ow, q, as a function of the pres-sure difference in the measurement nozzles. Flow data for dimensioning differ from this graph.

29


DIRU, DIRBU, DIRVU

100 600400 500150 200 300q

10

20

30

4050

100

200

300

p

k

[m/s]

[l/s]

[Pa]

3 4 5 10v

8 10 12 15 20 25 30

35

40

45

250

150 900200 300 400 500q

10

20

30

4050

100

200

300

p

k

[m/s]

[l/s]

[Pa]

3 4 5 10v

14 15 20 25 30 35 40 50

60

65

300

150 1000200 300 400 500q

10

20

30

4050

100

200

300

p

k

[m/s]

[l/s]

[Pa]

32 4 5 10v

13 15 20 25 30 35 40 50

7060

75

315

250 1500300 400 500 1000q

10

20

30

4050

100

200

300

p

k

[m/s]

[l/s]

[Pa]

32 4 5 10v

15 20 30 40 50 60 70 8090

100

130

400

2500400 1000500 1500 2000q

10

20

30

4050

100

200

300

p

k

[m/s]

[l/s]

[Pa]

3 4 5 10v

25 504030 60 8070 90 100

150

190

500

4000600 1000 1500 2000q

10

20

30

4050

100

200

300

p

k

[m/s]

[l/s]

[Pa]

33 4 5 10v

38 40 50 60 70 90 100

150

80 200

250

300

310

630

30


DIRU, DIRBU, DIRVU

Measurement accuracyIf the velocity pro le is asymmetric, the measurement values can differ from the ideal values. For this reason, the ow meter should never be located right up to any ow disturbance. The method error in the table below will differ, depending on the distance to the ow distur-bance.

l = straight distance before and after disturbances

Method error

7%

D

l

l 1 D

l

D

l l 1 D

l

l

D

l 3 D

l

D

l 3 D

31


DIRBU, DIRVU

AssemblyThe Damper which is considered as a component (not ready-to-use-product) are only to be put into operation after it has been built into machines or duct systems and when the system is found to be in conformity with all relevant regulations.

Mount the damper according to Assembly Instructions Lindab Safe to meet the requirements for Tightness Class C.

Dampers with dimension 400, 500 and 630 are provided with transport protections. Remove these before assem-bly. Consider required straight distance after or before disturbance, as mentioned on the card attached to the measurement nozzles, to obtain accurate ow measure-ment.

The damper may not be loaded with weight from con-nected ducts, specially when assembly vertically. Make sure that there is enough free space for moving parts.

Installation, electrical connection and commissioning are only to be performed by authorised personnel and in accordance with the requirements of the installation.

Electrical connection shall be done according to the wiring diagram on the motor, in the catalogue and the markings on the cable.

The damper must not be used in an explosive atmos-phere or connected to ue ducts.

The damper can have sharp edges and corners which may cause injuries. It also has moving parts.

Do not lift the dampers by the connecting cable.

Before initial operation, check the following:

electrical connection has been properly completed.

Safety devices are in place.

Leftover installation materials and foreign materials have been removed from the casing.

Make sure the damper is functional by checking the end positions: press the button on the motor and move the lever to each end.

When putting in operation, check the following:

Smoothness of motor operation and no abnormal noises.

MeasuringBy measuring the pressure difference p in Pa between the measure nozzle, you can through the equation q = k p on the damper derive the ow q[l/s]. Do not forget to plug up the nozzles after measuring.

qother density = qequation other1,2

BalancingThe damper is delivered fully open. Set the maximum and minimum ow by connecting hoses to the meas-urement nozzles. Press the button on the motor and move the lever until required pressure for maximum ow receives. Fasten the left screw on the motor. Repeat the procedure to set the minimum ow and fasten the right screw.

Measurement accuracyConsider required straight distance after or before disturbance, as mentioned on the card attached to the measurement nozzles, to obtain accurate ow measure-ment. The accuracy is 7% when required distances is complied.

MaintenanceThe product normally doesn't requires any maintenance but before maintenance, service or repair make sure that:

power supply is interrupted (all-pole circuit breaker)

observe personnel safety regulations

Do not use high-pressure cleaner when cleaning the damper. Care must be taken during cleaning so that mo-tor are not damaged.

End stop screws

CleaningBy fully open the damper, one get access to the duct. Do not forget to readjust the damper after cleaning.

CE-markingOur dampers with electrical actuators are considered as ductwork components and does not need to be separately marked. Their electrical actuators however are a part of the electrical system and are consequently marked. Declaration of Conformity is to be found at www.belimo.com.

32


DIRBU

Technical data for the motors NM 24 A-F NM 230 A-FPower supply ............................ AC 19,228,8 V, 50/60 Hz AC 85265 V, 50/60 Hz

DC 19,228,8 V Power consumption .................. 1,5 W 2,5 WFor wire sizing ........................... 3,5 VA 6 VAConnection ................................ Cable 1 m, 30,75 mm2 Cable 1 m, 30,75 mm2Operating angle ......................... Max. 95, adjustable 0100% Max. 95, adjustable 0100%Torque at rated voltage ............. Min. 10 Nm Min. 10 NmDirection of rotation ................... Switch selectable Switch selectable


SM 24 A SM 230 APower supply ............................ AC 19,228,8 V, 50/60 Hz AC 85265 V, 50/60 Hz



+

1 2 3

0

1

+

1 2

0

3

0

1

+

1 2 3

0

1

+

1 2

0

3

0

1

33

NM 24 A-SRPower supply ............................ AC 24 V, 50/60 Hz

DC 24 VPower consumption .................. 2 W vid nominellt vridmomentFor wire sizing ........................... 4 VAConnection ................................ Cable 1 m, 40,75 mm2

Operating angle ......................... Max. 95, adjustable 0100% Torque at rated voltage ............. Min. 10 NmDirection of rotation ................... Switch selectable

0 eller 1 Position indication ..................... MechanicalRunning time for 95 ................ 150 sSound power level..................... Max. 35 dB (A)Protection class ......................... III Safety extra-low voltageProtection type .......................... IP 54Ambient temperature range ...... -30 till +50CAmbient moisture ...................... 95 % RF

SM 24 A-SRPower supply ............................ AC 24 V, 50/60 Hz

DC 24 VPower consumption .................. 2 W vid nominellt vridmomentFor wire sizing ........................... 4 VAConnection ................................ Kabel 1 m, 40,75 mm2

Operating angle ......................... Max. 95, justerbar 0100% Torque at rated voltage ............. Min. 20 NmDirection of rotation ................... Switch selectable

0 eller 1 Position indication ..................... MechanicalRunning time for 95 ................ 150 sSound power level..................... Max. 35 dB (A)Protection class ......................... III Safety extra-low voltageProtection type .......................... IP 54Ambient temperature range ...... -30 till +50CAmbient moisture ...................... 95 % RF

+

1 2 3 5

UY DC 010 V

DC 210 V

+

1 2 3 5

UY DC 010 V

DC 210 V


DIRVU

34

Duct systems

Transfer

Areas of applicationThe Transfer duct system is used to advantage for com-fort ventilation, extraction systems for improved working environments, particle transport within timber industries, e.g. sawmills, joineries, furniture manufacturers, wood-work rooms, and plasma cutting facilities.

Contact your supplier if other areas of application or transport of other materials are required, or if special operating conditions apply.

Assembly The following types of joint are available:

Strap with handle SB(as standard for 500 mm)

Strap with screw SB2(as standard for 500 mm)

Flange FL(only as standard for > 500 mm)

Strap SB or S B-2 with open gasketFirst thread the strap over the entire bulge of one end and in over the duct.

Then position both bulges next to one another and put the strap back over both bulges.

Ensure that the ends of the gasket are not twisted. Then tighten the strap.

Locking pin, which secure the strap against unintentional opening, is available as an accessory.

FlangePlace the anges next to one another, possibly with seal-ant or sealing compound between them if air-tightness class C applies. Then tighten the screws alternately.

SuspensionThe number of suspension positions and the distances between them must be determined to ensure there is no de ection of the duct system.

SafetyDust and shaving extraction systems must be designed to minimise potential re or explosion risks.

More information about these risks can be found in: Draft of CE standard from CEN/TC 142/WG 10 Chips and dust extraction systems

MaintenanceThe duct system normally doesn't requires any mainte-nance but a regular check of wear and tear should be performed.

35

Sealing clamp

SVK

Assembly When installing the duct system leave an opening that is one or more cm longer than the tting you may want to remove later on.

It is preferable to install the clamp before the t-ting, in the direction of air ow, as this increases the likelihood of the tting not being pushed out at the end, which is only pushed in. In particular, this applies to ttings with a large pressure drop, such as closed dampers.

First install the clamp by inserting it from the side of the opening and then pushing it further along the duct past the end so that the opening remains free.

Then install the tting by inserting it from the side of the opening and then pushing it in the opposite direction along the duct in the same way. A gap then develops between the tting and the end of the duct.

This gap is covered by the clamp by pushing it back a bit. Then lock the clamp by closing the two eccentric locks.

MaintenanceThe sealing clamp normally doesn't requires any maintenance.

Opening

Gap

DuctDirection of air

Fitting

Sealing clamp

l indab | we simplif y construct ion

MG MGL

Mounting instructionMembranelead-through

2l indab | we simplif y construct ion

MG

Contents

Membrane lead-through

Vapour diffusion tight membrane grommet for all types of air ducts, venti-lation ducts or cables, for roof pitches of 0 - 55.

Application

MG use as wind barrier.

Content Application - MG . . . . . . . . . . . . . . . . . . . . . . . . . . 3Product description . . . . . . . . . . . . . . . . . . . . . . . . 3 Assembly example . . . . . . . . . . . . . . . . . . . . . . . . 4Assembly sequence . . . . . . . . . . . . . . . . . . . . . . . 5Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Application - MGL . . . . . . . . . . . . . . . . . . . . . . . . . 6Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7


.

MG


The EnEC prescribes that the air exchange rate due to leaks in the building envelope for buildings with ventilating and air conditions systems at 50 Pa must not exceed the value 1.5h-1 (Blower - Door - Test).

Above all it is about saving energy, but also as a result preventing moisture damage due to conden-sation in the insulation.

Amongst other things this requires leak tight con-nections and installations in the wall and roof area.

Vapour diffusion tight building component imple-mentations are therefore indispensable in the low energy and passive house building area.

With the Lindab membrane grommets a completely leak tight implementation as a vapour barrier can be realised - both in the roof area and on the outside wall.

Lindab membrane grommets are used, where com-pletely leak tight solutions to installation of air ducts, pipes or cables are required.

Product descriptionThe MG membrane grommet is made from a 1.0mm thick aluminium frame, which is integrated into a special flexible 2 component rubber membrane.

The grommet is available in various sizes for pipe diameters up to 710mm.

The membrane grommet can be glued on or scre-wed on.

Diverse applications, according to roof construction.

MG application on both sides, can be used according to installation situa-tion.

External

Membrane grommet

Roof support system / wind barrier

Insulation

Vapour barrier

Membrane grommet

Internal


MG


Assembly exampleThe Lindab membrane grommet can be used for roof pitches of 0 to 55 without additional measu-res.

In the roof ridge the grommet must be bent in the middle and then adjusted to the appropriate roof pitch.

The membrane can be adjusted easily, by cutting a hole that is 20mm smaller than the size of the building component to be implemented.

The membrane can be affixed with double sided sticky tape or glue.

To attach to rigid roof support structures, concrete and/or storey roofs, screw holes are provided.

When assembling with screws the points of con-tact must be sealed with sealing agent.

After assembly the impact points between imple-mented building component and membrane, in particular in the area of pipe joints, should be jointed with sealing agent.

As an adhesive and for sealing the sealing agent cartridges with an MS polymer base that are optionally available with the membrane grommets should be used.

If the plate is rotated, the Linab membrane grom-met can be used for fixed roof support system with roofing membrane.

The roofing membrane can then be carefully welded onto the aluminium sheet.

Advantages flexible application

quick and easy assembly

ensures highest airtightness

prevents structural damages due to water vapour diffusion

Assembly through-roof ridge

Bend the membrane grommet in the middle, stick on and screw on if necessary.

Affix to sealing course

Stick on the membrane grommet.

Assembly on fixed roof support system

Stick on and poss. screw on the membrane grommet.Assembly on fixed roof support system with roofing membrane

Stick on and poss. screw on the membrane grommet, before attaching the welding seam.

Wall assembly

After assembly of the vapour barrier/wind barrier stick on the membrane grommet.

Concrete or storey ceiling

Stick on and poss. screw the membrane grommet onto the raw ceiling, before further floor construction.


MG

B 80

5

L


Assembly sequence1. Cut a hole 20mm smaller than the building

component to be implemented (if necessary consider roof pitch).

Dimensions

Special dimensions, can be used for 0 pitch and pipes of 100 - 160 diameter

Type

Max. pipe dimension

/ diameter

mmW L C

mmm kg

MG 1016 160 200 200 50 0,32

Standard installations

Type

Max. pipe dimension

/ diameter

mmW L C

mmm kg

MG 100 110 150 235 80 0,40

MG 200 200 240 390 80 0,78

MG 315 315 355 565 80 1,36

MG 400 405 445 750 80 1,76

MG710 710 750 1280 80 2,00

2. Coat the aluminium frame with glue.

3. Pull the membrane grommet over the com-ponent.

4. Glue the membrane grommet onto the con-necting building component or screw on and seal.

5. If necessary seal permeation.

As an adhesive and for sealing the sealing agent cartridges with an MS polymer base that are optionally available with the membrane grom-mets should be used.


MGLMembrane lead-through

ApplicationFor sealing building components which penetrate the roof or wall construction and/or the vapour bar-rier.

Specially for low energy and/or passive house buil-ding.

Membrane grommet light - an adhesive design for a completely tight implementation of air ducts, ventila-tion pipes, cables or other building components up to 355mm diameter.

Membrane grommet made of special, flexible synt-hetic rubber with double sided adhesive strips. In particular for bonding to sheets or roofing mem-branes.

AssemblyThe membrane is easy to adjust; the recess is cut 20mm smaller than the building component to be implemented.

The membrane is bonded to the vapour block with the adhesive strip attached in the factory.

Only for bonding to smooth, clean surfaces.

After assembly the impact points between imple-mented building component and membrane, in particular in the area of pipe joints, should be jointed with sealing agent.

As an adhesive and for sealing the sealing agent car-tridges with an MS polymer base that are optionally available with the membrane grommets should be used.

Vapour diffusion seal, self adhesive membrane grommet for all types of building component penetrations for slight pitches.

With double sided adhesive tape on one side.


MGLA

B


Dimensions

Standard installations

Type

Max. pipe dimension

/ diameter

mmW L C

mmm kg

MG 80 80 200 200 0,10

MG 125 125 250 250 1,10

MG 160 160 300 300 0,15

MG 250 250 400 400 0,20

MG 355 355 500 500 0,25

37

Roof hoods

H, HV, HU, HN, HF, VHL, HRR, HVR, LHR, HKOMR, TGR, TGKOMRAssembly H, HV and HF in 4001250; HRR and HVR in sizes 79 and HKOMR in sizes 214 are equipped with three or four wire eyelets to make lifting easier. The eyelets can be turned and even used as attachments to anchor the product.

An individual anchoring eyelet must not be subjected to forces in excess of 1,500 N.

MaintenanceThe hoods normally don't require any maintenance but depending on the position, checks that leaves or other items are not blocking the flow of air may be necessary. Checks of the anchoring may also be recommended.

Connection schemeTo connect some of our roof hoods to the roof transition TGR, an adapter is needed.

The TGR is fixed to the roof with the profiles delivered with the TGR.

Roof hood

H HV HU HN HF VHL LHR HRR HVR

Hoods with circular connectionHoods with rectangular

connection

Hood to adapter Screw or boltGuiding profile

The hood is attached directly to

the roof transition. No adapter is

needed.

Adapter

TGR-OA

80315 4001250

TGR-VHL

100315 400500

TGR-LHR

Adapter to roof transition

Screw

Roof transition

TGR

Roof transition to connector

Guiding profile

ConnectorTGR-NA

The roof transition is attached directly to the duct. No connector is needed.

Connector to duct Screw, blind rivet or Lindab Click

DuctSR LKR

38

Sliding dampers

SKMTR, SKPTR

Assembly Install the damper as per instructions for straps or anges.

Check that the space before/beyond the damper allows the damper blade to be fully opened.

When installing SKPTR with automatic opening and closing function, the risk of personal injury must be considered. The damper must therefore be installed outside any possible contact zone, for example min. 2.1 m above the oor.

Connecting conduits must be suspended so that the damper is not exposed to destructive forces. These can cause the damper to jam or stick.

Example of horizontal installation.

Electrical connectionElectrical connection must not be performed before the damper is connected to the pipe system or the pipe connections are covered in some other way.

Electricity must be connected by a quali ed electrician. Connection must be carried out in accordance with the adjoining diagram.

The motor must, however, be preceded by a multi-pin switch with a break distance of at least 3 mm.

Wiring diagram

Example of control for automatic damper

Electrical signal to solenoid valve

The solenoid valve on the damper is connected to 230 V or 24 V from the governing process (e.g. a processing machine).

Connection:

Compressed air 5-8 bar is connected by a 6 mm compressed air hose to the solenoid valve.

The solenoid valve is connected to the required voltage.

Options:

If the supply voltage from processing machines is 400 V, you must use an EMI-04 transformer in order to be able to connect the solenoid valve on the damper to the machine. EMI-04 is connected to 400 V and supplies 24 V AC to the solenoid valve.

39

Sliding dampers

SKMTR, SKPTR

Control signal from light sensor

In light sensor EMI-02, a circuit is closed when the sensor is activated by the beam from an arc. Via control unit EMI-01 the solenoid valve is supplied with 230 V when the sensor is activated. The control unit contains a potentiometer where damper closing can be delayed by 30 seconds.

Connection:


The control unit is connected to 230 V and the sole-noid valve (230 V) on the damper is connected to the control unit.

The light sensor that must be installed close to the light source is connected to the control unit.

Control signal from current sensor

In a current sensor EMI-03 a circuit is closed when the sensor is activated by a suitable electric current. Via control unit EMI-01 the solenoid valve is supplied with 230 V when the sensor is activated. The control unit contains a potentiometer where damper closing can be delayed by up to 30 seconds.

Connection:


The control unit is connected to 230 V and the sole-noid valve (230 V) on the damper is connected to the control unit.

The current sensor that is to be installed on the power cable to the governing machine is connected to the control unit.

CommissioningCheck that the damper blade moves easily (must be performed after mechanical installation).

Check that the damper opens and closes as per pro-jected function.

MaintenanceThe damper is maintenance free. If necessary, cleaning can carefully be performed.

Spare partsWhen ordering spare parts, state damper designation and size. See product plate on damper.

Designation Description

T-08 Microswitch

T-12 Microswitch socket

T-901 Damper blade

T-902 Sealing kit

T-920 Damper blade protection

TroubleshootingDamper blade jams or sticks.

1. The damper needs to be cleaned

2. Breaking forces are affecting the pipe system

3. The blade is damaged

4. Sealing is loose

40

Structure of the automatic damper

RK design1. Cylinder

Sliding dampers

SKMTR, SKPTR

FM design with damper blade protection (SPZZ)

2. Connection

3. Sealing housing

4. Throttle valves

A. Closing

B. Opening

5. Solenoid valve

6. Compressed air supply (6 mm)

7. Cable contact

8. Solenoid

9. Screw for manual operation of valve

10. Socket for microswitch

11. Damper housing

12. Damper blade

13. Damper blade protection

(SPZZ)

41

Exhaust air terminal device

SLKNU

Assembly In order to ful l the requirements for air-tightness class D, the device must be installed as per Assembly In-struction Lindab Safe.

For dimension 400 and larger, the loose connector must rst be secured in the device.

Catalogue values for attenuation are speci ed for instal-lations in a straight duct, where the sound eld have been guided straight. Positioning in a diffuse sound eld, e.g. immediately after a fan or bend, means better attenuation.

MaintenanceThe device normally doesn't requires any maintenance.

.42

Flexible ductsTo mount exible ducts correctly, the next items should be considered. The items will be explained shortly and the drawings will illustrate how to mount the duct.

Mounting instructions (general)

Shortening of ducts

Making a connections

Suspension points

Bending radius

Support

Connection to ducts and armatures

Static electricity

Situations in practice

Mounting instructions (general) The duct has to be stretched completely. A duct that has not been stretched completely causes a lot of pressure

loss.

Do not use more of the duct than necessary.

Use about 1 1,5 m of the duct for each connection piece. If more length will be needed (e.g. for acoustic ducts) the duct has to be fastened correctly with circular duct rings.

During mounting take care that the duct will not be damaged (e.g. a co-ordination with respect to light armatures and ceiling constructions).

Replace damaged ducts by new ones. Replace also damaged outer jackets of insulated ducts (in connection with loss of air and density of steam).

Shortening of ducts The duct has to be stretched completely.

Measure the correct length and mark it with a felt marker.

Cut the duct into two pieces over the entire diameter right in a winding.

Cut the spiral

Making a connection Shorten the duct correctly.

Push the duct 50 mm beyond the connection piece.

Seal the connection airtight with aluminum tape.

Fix the sealed duct with a duct clamp. A non-insulated duct can also be xed with a nylon duct clamp.

Suspension pointsThe maximal sagging of the duct, between two fastening points, should not exceed 50 mm/m (see g 1) The distance between two suspension points varies from 1,5 up to 3 m depending of the duct type. A exible duct above a ceiling construction needs a 1 m centre-to-centre distance support.

Fig. 1

Max. sagging 50 mm/m

43

Bending radius The minimal bending radius of each product has been described on the product information page. The bending should be as large as possible. A minimal bending radius provides a greater pressure loss. The bending should be twice the diameter for minimizing the effect of a bend. D

1 x D

D

D

R 1 x D

SupportA duct is, generally, very exible and can be transformed easily. In case of transformation the inner diameter will decrease and the pressure loss will increase. Much attention should be paid to fastening the ducts, in case of using duct clamps. Use the correct clamp diameter and make sure that the clamp support the duct half of the diameter minimally (see g. 2).

Fig. 2.

Connections to ducts and armaturesThe connection of exible ducts to ducts and diffusers should be performed very carefully. Because many ducts have been mounted with a bend, right after the connection to a duct or diffuser, a supporting clip will be needed.

Fig. 3 The right connection is too sharp

correct

incorrect

Metal ducts can produce a crack if the duct connections are too sharp ( g. 3) If the duct has to be connected to light armatures or air diffusers the connection should be as direct as possible. The instructions should be consulted. Too many bends close to a diffuser will cause increasing of pressure loss. It will also cause unnecessary noise. Fig. 4 shows a incorrect diffuser connection. Fig. 5 shows a correct connection.

Fig. 4 Fig. 5

correctincorrect

Static electricityBuilding up and discharging electricity can cause explosion risk. This could happen if air, with organic solvents, ows through a synthetic or a laminate duct with high speed. Making a connection between the spiral wire of the duct and an earth wire can minimize building up static electricity. For machine exhausting a connection can be made between the metal wire of the duct and the casing of the machine. The earthing of the machine and the connection between machine and duct, however, has to be controlled frequently. Especially if the exhaust system is in motion or the machine causes vibrations.

Earth wire

Flexible duct

Connection piece

44

Situations in practice During mounting there are often situations where a longer exible duct is recommended. An example is the bridging between the difference in height where no standard connection pieces can be used.

Take care that there is no contact between the duct and other existing components with a high temperature. A duct provided with a PVC layer will quickly fall apart, if it is in contact with the tube of the central heating for a while. Even a central heating tube can increase the ageing process of such a duct.The lifespan of ducts can rather be shortened if ducts with different metals (also from other ducts) will be in contact intensively. Rooms, which are warm and damp, could cause a quicker corrosion.

Fig. 6 Fig. 7

Flexible insulated ductsFor insulated exible ducts there are more points to consider. These points are mainly concentrated on the processing of the duct. For various applications a difference has been made between thermically and acoustically insulated ducts.

Thermically insulatedThe product series has no ducts, which have already been sealed. But this is possible on request.

Ducts which have not been sealed have a maximal output, if the items below have been considered (see g. 9)

Shorten the duct correctly.

Push the duct over the connection piece 50 mm minimally.

Pull back the insulation blanket in order to apply the tape on the inner duct.

Seal the connection piece of the inner duct with aluminum tape (TAPE) at least two windings around the duct.

Push back the insulation blanket to its original position.

Attach the outer jacket with aluminium tape to the inner duct, at least two complete windings around the duct.

Take care that the end piece of the duct has been sealed air-tight.

Attach outer jacket and inner duct together with duct clamps.

min. 50 mm

Alutape

Alutape

Never constrain the insulation blanket

Duct Clamp

Fig. 9

Mistakes in practiceA mistake which has been made often, is the xing of the insulation blanket with a clamp, without sealing with tape. There is no guarantee that this way of working is effective, because the sealing is not airtight.

RJFP

45

Lindab's rectangular duct system featuring its RJFP pro le complies with the European Standard EN 1507 classi cation C2 where C stands for the leakage class and the 2 for the pressure class (+1000 Pa, 750 Pa). The standard covers both leakage and strength.

Rectangular duct system

Preparation Use only ducting and other parts with factory- tted

pro les.

Ensure that ducting and other parts are stored under cover.

The suspension distance for ducting and parts, regardless of dimension, shall not exceed 2400 mm. Additionally there shall never be more than one joint between two suspended sections. Suspended sections may be placed at a maximum of 500 mm from a joint.

In order to achieve a good result, ensure you have A well-organised and protected storage site for ducts

and other parts that are to be assembled.

Use undamaged parts only.

Properly planned assembly sequence.

Carefully executed assembly in accordance with the instructions.

46

Assembly of ducts and parts

Apply the seal moulding (RJSM) to the inner edge of the connection pro le.

The seal moulding must cross over each other.

The seal moulding is to be applied only to one of the two surfaces to be mated together

Mastic the countersunk part of the corner section (RJCL) and internally in the product's corners.

1

2

3

4Assemble the guide strip RJSP from the side of the duct.

RJFP

Press the ends together and x the corners with the bolt RJB and nut RJN.

The ange will be 20, 30,40 mm high depending on the width of the duct and the pressure class the system shall withstand. (The anges are called Rectangular Joint Flange Pro le RJFP 20, RJFP 30 and RJFP 40.)

The 9 mm seal moulding (RJSM 9) is to be used with RJFP 20 pro le.

The 12 mm seal moulding (RJSM 12) is to be used with RJFP 30 and 40 pro les.

The M8 bolt and nut is to be used with the RJFP 20 pro le.

The M10 bolt and nut is to be used with RJFP 30 and 40 pro les.

Assemble the Rectangular Joint Bolt Clamp RJBC over the anges.

To reach air tightness class B it is enough to have a distance of 700mm between the clamps. To reach air tightness class C a maximum dis-tance of 400 mm is allowed.

Guide methode Clamp methode4

47

Unit

Connects to

Socket with thread for units with bayonet

holder

Socket with groove for units with

spring holder

Cover socket

with groove

for units with wire

spring holder

Smooth socket

for units with plate

spring holder

Duct/Fitting

Sup

ply

air

VVTK Diffuser

VRFU VRFM VRR

VTTB Diffuser

VRFU VRFM VRR

SHH Diffuser Duct

KPT Valve

ILDuct/Fittings

KI Valve

VRGU VRGL VRGM

KIR Valve

VRGU VRGL VRGM

Sup

ply

and

ex

haus

t ai

r

TAV Valve Duct

Overview diffusers, valves and cover

48

Unit

Connects to

Socket with thread for units with bayonet

holder

Socket with groove for units with

spring holder

Cover socket

with groove

for units with wire

spring holder

Smooth socket

for units with plate

spring holder

Duct/Fitting

Exh

aust

air

KVB Valve

VRFU VRFM VRR

KDPF Valve

VRGU VRGL VRGM VRFU VRFM VRR

KVG

100160

Valve

VRFU VRFM VRR

KVG

200Valve

VRGU VRGL VRGM

KU Valve

VRGU VRGL VRGM

KSU Valve

VRGU VRGL VRGM

KSUL Valve

VRGU VRGL VRGM

KSUBValve and re damper

VRGU VRGL VRGM

KPF Valve

IL

Duct/Fitting

No

air

TLO Cover

VRFU VRFM VRR

49

< 3

d

d

d

> 3

d

d

d

k-factor type: B (Bend 90) k-factor type: D (Duct)

k-factor type: T (T-piece) k-factor type: D (Duct)

< 3

d > 3

d

ExplanationsMeasurement of air ow

where

q is air ow [l/s]

pm is measuring pressure difference [Pa] k is correction factor, see table []

Tables

a is setting of valve disc or cone [mm]

n is setting of valve disc or cone [number of opening turns]

D is valve mounted in a duct

B is valve mounted in a bend 90

T is valve mounted in a T-piece

WOSP is without sector plate

WSP is with sector plate

is recommended method is not recommended method

When to use the different k-factor types

50

100

125Alt 1

125Alt 2

VVTKR 125

Diffuser VVTK

51

mm

a 6 8 10 12100 k 1,14 1,44 1,85 2,48

a 6 7 8 10 12 16125 k 1,25 1,51 1,87 2,16 2,73 3,61

mm

Valvemounted

in

Settinga

[mm]

Duct

Duct

Diffuser VVTK

mm

Valvemounted

in

Settinga

[mm]

Duct

Duct

52

Diffuser VTTB

53

a 4 5 6 7 8 10 12 16100 k 0,919 0,967 1,17 1,45 1,58 1,89 2,00 3,24

a 4 5 6 7 8 10 12 16125 k 1,11 1,47 1,69 2,01 2,21 2,72 3,46 4,54

a 5 8 10 12 16 20160 k 2,05 2,93 3,51 3,92 5,19 7,20

Diffuser VTTB

mm

Valvemounted

in

Settinga

[mm]

Duct

Duct

Duct

54

Diffuser SHH

55

n 2 4 6 8 10 12 14100 k 0,7 1,2 1,7 2,3 2,7 3,1 3,6

n 2 4 6 8 10 12 14125 k 0,7 1,2 1,8 2,3 2,8 3,3 3,9

q

p

Diffuser SHH

mm

Diffusermounted

in

Settingn

[number of open rows]

Duct

Duct

2 taped rows

n = 10

2 taped rows

4 taped rows

n = 6

4 taped rows

56

Valve KPT

57

n 1 2 3 4 6 880 k 1,08 1,42 1,83 2,30 2,92 3,77

n 2 3 4 6 8 10100 k 1,12 1,69 2,20 3,36 4,21 4,86

n 4 5 6 7 8 9125 k 1,23 1,50 1,79 2,09 2,30 2,66

n 6 8 10 12160 k 2,34 3,06 3,73 4,35

n 7 9 11 13 15200 k 4,55 5,47 6,35 7,39 8,37

n

Valve KPT

mm

Valvemounted

in

Settingn

[number of opening turns]

Duct

Duct

Duct

Duct

Duct

58

Valve KI

59

a 2 4 6 9 1280 k 0,779 1,36 2,05 2,65 2,80

a 2 4 6 9 12100 k 1,00 1,10 2,31 3,19 4,12

a 3 5 7 9 12 15125 k 1,23 1,85 2,83 3,74 5,08 6,21

a 4 6 9 12 15 20150 k 2,35 3,37 4,50 5,74 7,40 10,3

a 4 6 9 12 15 20160 k 1,66 3,10 4,31 6,04 7,34 10,3

a 5 6 9 12 15 20200 k 3,66 5,17 7,05 8,00 10,4 12,9

Valve KI

mm

Valvemounted

in

Settinga

[mm]

Duct

Duct

Duct

Duct

Duct

Duct

60

Valve KIR

61

a 2 4 6 9 12100 k 0,882 1,45 1,75 2,49 2,89

a 4 6 9 12 15125 k 1,97 2,65 3,40 4,23 4,77

a 4 6 10 15 20160 k 1,69 2,73 4,39 5,91 7,35

a 2 4 6 9 12100 k 1,09 1,56 2,11 2,81 4,31

a 4 6 9 12 15125 k 1,95 2,99 4,41 5,72 7,41

a 4 6 10 15 20160 k 2,10 3,74 5,83 9,66 12,8

Valve KIR

mm

Valvemounted

in

Settinga

[mm]

Duct

Duct

Duct

mm

Valvemounted

in

Settinga

[mm]

Duct

Duct

Duct

Without sector plate

With sector plate

62

Valve TAV

63

Valve KVB

64

100

a -11 -9 -6 0 6 9

k0,600 0,693 1,29 1,42 2,16 2,380,590 0,655 1,01 1,53 2,12 2,240,606 0,707 1,04 1,55 2,01

125

a -18 -12 -6 0 6

k1,32 1,88 2,47 3

AI Air Duct Systems 1020

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