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Installation instruction VentilationInstallation, measuring, adjustment and maintenance

l indab | a ir duct systems

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Contents

Page

Type-approved ducts and fittings Lindab Safe ...................................................................................................... 3

Cleaning covers EPFH, ESHU, KCU, KCIVU, KCRU, KC ........................................................... 5

EPFH with bayonet locking .............................................................................. 6

KCIVU, KCU, EPFH, KC ................................................................................... 7

Silencers SLU, SLVU, SLBU, SLVBU, SLGU, SLBGU, BSLU,

BSLVU, SLKNU, LRCA, LRCB, LRBCB ........................................................... 8

DLD, DLDY, DLDR, BDLD, LRLB ..................................................................... 9

Dampers DRU, DSU, DTU, DTHU, DTBU, DTBCU, DTPU, PSDRU,

TDRU, TDSU, TASU, TATU, TATBU ................................................................ 10

LKSR .............................................................................................................. 11

Constant/variable flow dampers DAU, DA2EU, DAVU ....................................................................................... 12

Measuring bends MBU, MBFU ................................................................................................... 14

Flow meters FMU, FMDRU ................................................................................................. 15

FMDU ............................................................................................................. 16

Duct system Transfer ........................................................................................................... 17

Sealing clamp SVK ................................................................................................................. 18

Ventilation hoods H, HV, HU, HN, HF, VHL, HRR, HVR, LHR, HKOMR,

TGR, TGKOMR ............................................................................................... 19

Sliding dampers SKHTR, SKPTR .............................................................................................. 20

3

Lindab Safe

The Lindab Safe duct system is type-approved, as per certificate no. 1358/88 and is subject to continuous production checks.

This means that the requirements for air tightness class D are met if Lindab Safe ducts and fittings are used and if assembly is performed as per these instructions. It also means that air tightness testing does not need to be performed.

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

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

Preparations for assembly• Check that ducts and fittings to be used in the

system are labelled as per above.

• Store ducts and fittings in a well-ordered and weath-erproof storage area to minimize the risk of damage. Do not use ducts or fittings 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.

Assembly 1 Start by inserting the turned-over edge of the fitting

into the duct.

2 Check that the first lip of the gasket is in contact with the edde of the duct all the way around and sticks straight out so that the lip is not twisted in one direc-tion or the other.

3 Then push the end of the fitting into the duct. Turning the fitting slightly aids insertion. (Removal, if neces-sary, is also aided by turning.)

4 Then secure the fitting in the duct using self-tapping screws or airtight blind rivets. NOTE! Local authori-ties may specify which fastener should be used.

5 Fasteners should be positioned 10–15 mm from the end of the duct to prevent damage to the gasket.

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

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

Dimension

Ø

[mm]

Minimum number of fasteners required to achieve sufficient air

tightness [pcs]

63 – 125 2

160 – 250 3

315 – 630 4

800 – 1250 6

1600 10

NOTE!

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

G

TG 1

358/

88

1819

/533

/90

GTG

1 3 5 8/ 88 BT

G

1 3 5 8/ 88 ST

G

1 3 5 8/ 88

GTG

1358/88

G

T G

13

58/

88

G

T G

13

58/

88

GTG

1358/88

GTG

1358/88

10 – 15 mm

T G

13

58/

88

4


Hints!In certain instances, installation can be simplified by preassembling parts of the system on the floor before lifting them into place.

Turning the fitting slightly as you insert it into the duct aids assembly and removal, as the gasket’s lips align themselves in the right direction.

If ducts and fittings are round, assembly is much easier. Lindab has placed high demands on roundness during the design and production stages, but large heavy fit-tings 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 components 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 fitting, and the fitting tries to move to the right side if there are burrs and irregularities.

When cutting, be sure to remove burrs properly.

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

If you have to reinstall a product, take care to seal old screw/pop rivet holes which can cause leaks and noise.

Products with special sealsSome fittings, such as the collar saddle PSU, T-pieces TSTCU, TSTU and take-offs ILRU, ILU, ILF, have one more connection than Lindab Safe. This connection must be sealed in the same way as non-Lindab Safe products in the next section.

Use of products other than Lindab SafeProducts that do not formally fulfil the requirements for air tightness class 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 definitely meet the requirements for air-tightness class D. Sealing material used must be durable and permanently elastic.

Lindab Safe

5

Cleaning covers EPFH, ESHU, KCU, KCIVU, KCRU, KCInstallation 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 require no maintenance, but as they are used in duct systems that need to be cleaned, they should be cleaned at the same time as the system.

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Cleaning cover EPFH with bayonet locking

Installation 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 Ø 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.

7

Cleaning covers KCIVU, KCU, EPFH, KC

Fire protection installation instructionCovers with different levels of fire protection are avail-able. The fire class is specified on the cover’s label. In certain cases, the fire class requires that covers be placed at a specific safety distance from inflammable materials in a structural element or inflammable fixed 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 fire-resistant material, check:a) that the insulation forms a tight seal around the

casing of cleaning covers.

The risk of gaps occurring is particularly significant if insulation with joints is applied to covers.

b) that the insulation is level with the edge between the cover’s casing and top.

Cleaning cover

Insulation sealed tight around casing

Insulation

Cleaning cover

Risk of gap

Risk of gap

Joint in insulation

InsulationInsulation

InsulationInsulation

Edge of cover

Cleaning coverDuct wall

8


Silencers SLU, SLVU, SLBU, SLVBU, SLGU, SLBGU, BSLU, BSLVU, SLKNU, LRCA, LRCB, LRBCB

Installation 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 Ø 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 instal-lations 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 require no maintenance.

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Rectangular silencers DLD, DLDY, DLDR, BDLD, LRLBInstallation In order to fulfil the requirements for air-tightness class C, the silencers must be installed as per ‘Assembly Instruction Rectangular air duct systems’.

Catalogue values for attenuation are specified for instal-lations 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.

MaintenanceThe silencers normally require no maintenance.

CleaningThe top layer of insulation can be cleaned with rotating plastic whisks. NB! Not steel.

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

Installation In order to fulfil 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 insula-tion cup, IK, for DRU, DSU, DTU, TASU and TATU.

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 damp-ers. The dampers are then locked by turning them slightly clockwise.

Accessories to use when installing damper motors on site

MotorDamper type

Standard damper with knob and standard shaft

Damper DTHU with KOMHY and long shaft

Belimo LM LÖMOK + VREDF 15 60 – (The motor fits immediately)

Belimo NM LÖMOK + VREDF 15 100 or KOMHY + VREDF 15 60 – (The motor fits immediately)

Belimo AM KOMHY + VREDF 15 60 – (The motor fits immediately)

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

Belimo AF KOMHY + VREDF 15 100 – (The motor fits 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 fit

AdjustmentOn DRU, PSDRU and TDRU the damper blade is stepless adjustable through 0–90° (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. Other types of damper normally only work in the fully open or com-pletely 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 Ø <355 can be supplemented with a sturdy handle to facilitate adjustment. Larger dimensions are equipped with a handle as standard.

MaintenanceDampers and motors normally require no maintenance.

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Damper LKSR

Installation In order to fulfil 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.

AdjustmentOn LKSR the damper blade is adjusted through 0–90° (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 require no maintenance.

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Scale arrow

Center nut

L

R

LM24 BELIMO R

screwsEnd stoppers

LM 24 LM 24 LM 230

24 V– + 24 V–

24 V– + 24 V–

L1N230 V

1 2 3 1 2 3 1 2 3Wiremarking

Constant/ DAU, DA2EU, DAVU variable flow dampersInstallation In order to fulfil 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 flow in the direction of the arrow.

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

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

Changes in directionThe 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.

Adjustment

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

DA2EUThe two flows are adjusted by moving the end stoppers screws.

On delivery, the screws are adjusted to the largest pos-sible distance.

Technical data for the motors

LM 24 LM 230Power supply ............................ 24 V~ ±20 % 50/60 Hz 230 V~ ±5 % 50/60 Hz 24 V– ±20 % Power consumption .................. 2 W 1 WFor wire sizing ........................... 3 VA 12 VAConnection ................................ Cable 1 m, 3×0,75 mm² Cable 1 m, 3×0,75 mm²Operating angle ......................... Adjustable, max. 95° Adjustable, max. 95°Torque at rated voltage ............. Min. 4 Nm Min. 4 NmDirection of rotation ................... Switch selectable L/R Switch selectable L/RRunning time for 95° ................. 80–110 s (0–4 Nm) 80–110 s (0–4 Nm)Protection class ......................... IP 54 IP 54Ambient temperature range ...... -30 to +50 °C -30 to +50 °CSound power level .................... Max. 35 dB(A) Max. 35 dB(A)

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L

R

100%20%

LM24SR BELIMO R

Potentiometer

Clamp

LM 24-SR

1 2 3 5

24 V– + 24 V–

Wiremarking

U 2–10 V-

Y 2–10 V-

Constant/ DAU, DA2EU, DAVU variable flow dampersDAVUThe flow is adjusted by entering an external control signal. This control signal, 2–10 V, turns the motor 0–90° (equivalent to 0–100 %).

You can limit the flow range as follows:

1 The maximum flow is set by loosening the clamp around the shaft and turning the scale arrow so that it points to the desired flow. The clamp is then locked.

2 The minimum flow is set by turning the potentiometer so that the scale arrow points to the desired flow.

The maximum flow is equivalent to a control voltage of 10 V and the minimum flow a control voltage of 2 V.

The maximum and minimum flows cannot be set to any degree of closeness, as the potentiometer cannot be adjusted to a narrower angle than 18° (20 %).

Technical data for the motor LM 24-SRPower supply ............................ 24 V~ ±20 % 50/60 Hz 24 V– ±10 % Power consumption .................. 2 WFor wire sizing ........................... 4 VAConnection ................................ Cable 1 m, 4×0,75 mm²Control signal Y ......................... 0–10 V- Ballast resistor = 100 kWWorking range ........................... 2–10 V- for 0–100 % rotationOperating angle ......................... Adjustable, max. 95°Torque at rated voltage ............. Min. 4 NmDirection of rotation ................... Switch selectable L/RRunning time for 95° ................. 80–110 s (0–4 Nm)Protection class ......................... IP 54Ambient temperature range ...... -30 to +50 °CSound power level .................... Max. 35 dB(A)

Systematic error

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

MaintenanceThe devices normally require no maintenance, but should be protected from contaminated air wherever possible.

14


Measuring bends MBU, MBFU

Installation In order to fulfil 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 flow q in l/s using the equation on the devices.

The specified flows only apply for air with a density of 1.2 kg/m3. For air of another density (ρother) the flow (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

1.2ρother√

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

MaintenanceThe measuring bends normally require no maintenance.

CleaningThe device does not limit cleaning opportunities.

15

Flow meters FMU, FMDRU

Installation In order to fulfil 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 flow in the direc-tion of the arrow.

The devices allow 100 mm duct insulation without sticker or measuring points being hidden. The cup around FMDRU’s 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 flow q in l/s using the equation on the devices.

With FMDRU you can set the desired flow, as the damper blade is adjustable through 0–90° (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.



Dimension mm

k-factor

80– 63 4.40

100– 80 7.32

125–100 11.2

160–125 18.0

200–160 29.4

250–200 45.7

315–250 73.3

400–315 116

500–400 191

630–500 283

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

MaintenanceThe devices normally require no maintenance.

CleaningFMU does not limit cleaning opportunities.

1.2ρother√

16


Flow meters FMDU

Installation In order to fulfil 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 flow 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 flow q in l/s using the equation on the device.

You can set the desired flow, as the damper blade is adjustable through 0–90° (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.



Dimension mm

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

1.2ρother√

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

MaintenanceThe device normally requires no maintenance.

17

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.

Installation The following types of joint are available:

• Strap with handle SB (as standard for Ø ≤ 500 mm)

• Strap with screw SB–2 (as standard for Ø ≤ 500 mm)

• Flange FL (only as standard for Ø > 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 flanges 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 deflection of the duct system.

SafetyDust and shaving extraction systems must be designed to minimise potential fire 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 requires no maintenance but a regular check of wear and tear should be performed.

18


Sealing clamp SVK

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

It is preferable to install the clamp before the fitting, in the direction of air flow, as this increases the likelihood of the fitting not being pushed out at the end, which is only pushed in. In particular, this applies to fittings 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 fitting 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 fitting 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 requires no maintenance.

Fitting

DuctOpening Direction of air

Sealing

clamp

Gap

19

Roof hoods H, HV, HU, HN, HF, VHL, HRR, HVR, LHR, HKOMR, TGR, TGKOMRInstallation H, HV and HF in Ø 400–1250; HRR and HVR in sizes 7–9 and HKOMR in sizes 2–14 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 require no maintenance but depend-ing 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.

20


Sliding dampers SKHTR, SKPTR

Installation Install the damper as per instructions for straps or flanges.

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 floor.

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 qualified 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 valveThe 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 volt-age.

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.

21

Control signal from light sensorIn 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 sensorIn 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


22


Structure of the automatic damper

RK design


1. Cylinder

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)

FM design with damper blade protection (SPZZ)

VM

A5

084

2005

-05-

20

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