Skov DA 1211 Flange Inlet Anti-freeze Mounting Guide

Brand: Skov

Model: DA 1211 Flange Inlet Anti-freeze

Type: Mounting Guide

DA 1211 Flange Inlet

Anti-freeze

Mounting Guide

604242 • 2023-11-24

DA 1211 Flange Inlet

Mounting Guide 3

Product and Documentation Changes

SKOV A/S reserves the right to change this document and the product herein described without further notice.

In case of doubt, please contact SKOV A/S.

The date of change appears from the front and back pages.

Note

• All rights belong to SKOV A/S. No part of this manual may be reproduced in any manner whatsoever without

the expressed written permission of SKOV A/S in each case.

• All reasonable efforts have been made to ensure the accuracy of the information contained in this manual.

Should any mistakes or imprecise information occur in spite of this, SKOV A/S would appreciate being noti-

fied thereof.

• Irrespective of the above, SKOV A/S shall not accept any liability with regard to loss or damage caused or

alleged to be caused by reliance on any information contained herein.

• Copyright by SKOV A/S.

DA 1211 Flange Inlet

Mounting Guide

1 Product description ....................................................................................................................................... 5

2 Product survey ............................................................................................................................................... 6

2.1 Flange inlet ................................................................................................................................. 7

2.2 Accessories................................................................................................................................ 7

3 Mounting guide............................................................................................................................................. 12

3.1 Recommended tools................................................................................................................ 12

3.2 Mounting of sandwich screws................................................................................................ 13

3.3 Wall inlet positioning............................................................................................................... 14

3.4 Mounting inlet .......................................................................................................................... 14

3.4.1 Preparing hole in wall................................................................................................................. 14

3.4.2 Mounting of inlet in wall.............................................................................................................. 16

3.4.3 Foaming ..................................................................................................................................... 18

3.4.4 Mounting the net ........................................................................................................................ 19

3.4.5 Mounting of external flange and net........................................................................................... 19

3.4.6 Pointing ...................................................................................................................................... 20

3.4.7 Check the assembly................................................................................................................... 20

3.5 Mounting of operation kit........................................................................................................ 21

3.5.1 Operation kit with advanced inlet control ................................................................................... 21

3.5.1.1 Check the position of the string at advanced inlet control.......................................................... 23

3.5.2 Regulation set with advanced inlet control................................................................................. 24

3.5.2.1 Check the position of the string at advanced inlet control.......................................................... 27

3.5.3 Adjustment of wall inlets ............................................................................................................ 28

3.6 Mounting of accessories......................................................................................................... 28

3.6.1 Air direction plate ....................................................................................................................... 28

3.6.2 Extension rod ............................................................................................................................. 30

3.6.3 Baffle plate ................................................................................................................................. 31

3.6.4 Regulation set for 2 inlets .......................................................................................................... 31

3.6.5 LPV door set for pull rod ø8 ....................................................................................................... 32

3.6.6 Door set for wire drive................................................................................................................ 32

4 Maintenance.................................................................................................................................................. 33

4.1 Recycling/Disposal .................................................................................................................. 33

5 Technical data .............................................................................................................................................. 34

5.1 Dimensioned sketch ................................................................................................................ 35

5.1.1 Flange inlet ................................................................................................................................ 35

5.1.2 Light trap complete/outside flange ............................................................................................. 35

5.1.3 Inlet Cover.................................................................................................................................. 36

5.1.4 Light trap for inlet cover ............................................................................................................. 36

5.1.5 Fly screen for inlet cover............................................................................................................ 37

DA 1211 Flange Inlet

Mounting Guide 5

1 Product description

The DA 1211 anti-freeze flange inlet is designed for areas with extremely low outside temperatures. The inlet

frame itself is insulated to reduce the formation of ice.

Flange inlet DA 1211 is a universal wall inlet which is used for ventilating livestock houses with natural, LPV or

Combi-Tunnel ventilation.

The inlet is fixed on the inside wall by screws through the flange itself. It cannot be built or cast directly into wall

elements.

The Advanced inlet control of the inlets is patent pending and is supplied with a regulation set which makes it

easy to adjust the air inlet in accordance with the current conditions.

The inlet is easy-to-clean due to its open and smooth construction. Also, the thermoplastic stands high-pressure

cleaning. Furthermore, the choice of material makes the inlet resistant to UV radiation. The inlet is made of high-

impact material; it is dimensionally stable and 100% recyclable.

DA 1211 Flange Inlet

6 Mounting Guide

2 Product survey

DA 1211 Flange Inlet

Mounting Guide 7

2.1 Flange inlet

433044 DA 1211 flange inlet 11 cm, Anti-freeze

The DA 1211 anti-freeze flange inlet is designed for areas with extremely

low outside temperatures. The inlet frame itself is insulated to reduce the

formation of ice.

The inlet is supplied with operation kit and parts for Advanced Inlet Control.

The 4 screws for mounting must be ordered separately. When mounting in

a sandwich wall, 351585 can be used.

2.2 Accessories

433016 DA 1200 net, fine 10x10 mm

The net for DA 1211/1211B is ordered separately. Fine net prevents the

ingress of mice and rats.

Net size 10x10 mm. Self-supporting, but it is recommendable to fasten it

with screws if used together with the extension.

Fine net reduces inlet capacity by approx. 10 %.

One per inlet.

433015 DA net, coarse 65x20 mm

The net for DA 1211/1211B is ordered separately.

Net size 65x20 mm. Self-supporting, but it is recommendable to fasten it

with screws if used together with the extension.

Coarse net does not reduce the inlet capacity.

One per inlet.

433117 DA 1211/1911 net holder set for 25 inlets

The net holder is used for mounting the net when mounting is required on

the outer wall instead of directly on the inlet, for example, at deep window

openings.

Contains 100 pcs.

One set for each 25 inlets.

433043 DA 1211/1911 screw kit f. flange, 10/5 set

Used for mounting of flange inlet. Contains 40 4.8x70 tapping screws.

DA 1211 Flange Inlet

8 Mounting Guide

433054 DA 1211 screw kit x 10 f. ceiling mount

Used when DA 1211 is used for Combi-Diffuse.

One set for each 10 inlets.

433112 DA 1200 air direction baffle, short

The air direction baffle is 7.5 cm. Air direction baffle (short/long) can be

used for adjusting the air jet under cold weather conditions and to avoid ad-

hesion on the wall. The baffle is used for all inlets. However, in connection

with 2 rows of inlets the baffle is only required for the top row if the inlets

are placed right above each other.

One per inlet or one for every second inlet.

433114 DA 1200 air direction baffle, long incl. side plate

The air direction baffle is 15 cm and includes side plates. Air direction baffle

(short/long) can be used for adjusting the air jet under cold weather condi-

tions and to avoid adhesion on the wall. The baffle is used for all inlets.

However, in connection with 2 rows of inlets the baffle is only required for

the top row if the inlets are placed right above each other.

Long air direction baffle is applied where the air jet range and Coanda-ef-

fect are particular important, for instance in wide livestock houses.

One per inlet or one for every second inlet.

433014 DA 1200 baffle plate

For reduction of external actions on the DA 1200 or DA 1211/1211B, baffle

plates are offered in connection with one or more of the following condi-

tions:

• The volume of the livestock house is low (narrow and low livestock

house with a flat ceiling)

• In detached wind-affected buildings without windbreaks and the like.

The baffle plate must be mounted on all inlets in the same room and are not

to be used together with Advanced Inlet Control.

The baffle plate increases the requirements to the tightness of the building

and cannot replace external windshield.

The baffle plate does not reduce the inlet capacity.

One per inlet.

560195 DA 1200 regulation set w. long U-shackle

Used where obstacles such as lopsided walls, steel trusses projecting up to

70 mm out from the wall, etc. impede the free movement of the pull rod.

The current system of Advanced inlet control cannot be used with the kit

and therefore an extra string with spring to reduce the slack is included by

which you can make Advanced inlet control.

The inlet flap should as a maximum open to a horizontal position; otherwise

it may overload the winch motor.

One per inlet.

DA 1211 Flange Inlet

Mounting Guide 9

433039 DA 1200 extension piece 240 mm

S433037B DA 1200 extension piece 400 mm, type B

The extension rod is used if you want to run the pull rod round heavy con-

crete pillars or the like, where it is not possible to run the pull rod directly

through the pillar by making a through-going hole. The extension rod is

made of stainless steel.

One per inlet.

401902 DA 1000/1200 single operation set

If individual operation of each inlet is required, DA 1200 single operation

set is mounted.

One per inlet.

401349 All-purpose holder for pull rod

If the distance between the inlets exceeds 2 m, the pull rod will bend down-

wards causing inaccuracies if all-purpose holders are not used.

One unit for each 2 meters free-hanging pull rod.

433021 DA 1200 regulation set for 2 inlets

DA 1200 regulation set for 2 inlets at different heights.

A pull rod row for each row of inlets is preferred and using 433021 should

therefore be regarded as a cheaper alternative.

One for each inlet in the upper row.

413214 LPV door set for pull rod 8 mm

If there are doors or the like in the wall where the inlets are mounted and

you temporarily want to end the pull rod, a special kit containing the neces-

sary parts can be acquired. The kit makes it possible to manually maintain

correct ventilation level and easily reestablish the pull rod.

One per door.

413223 Door set for wire tension

The mounting set is used where the pull rod is directed along the door

frame by means of wire and reels.

One per door.

DA 1211 Flange Inlet

10 Mounting Guide

433065 DA 1211 light trap complete

Used for DA 1211/1211B flange inlet if dimming of light is required.

The light-tightness of the light trap is 99.9 %, corresponding to 20,000 lux

outside and 0.05 lux inside (0.05 lux corresponds to 2.5 ppm).

One per inlet.

433281 DA 1211 external flange

The flange is included in 433065 but can also be mounted on the outside in

connection with DA 1211/1211B flange inlets to

• increase the output to the same level as DA 1200. Correct the number of

inlets, if needed.

• make a nicer finish on the outside of the building and the net can subse-

quently be mounted on the flange.

433281 can be used when the lateral distance between the inlets is 5 cm or

less.

One per inlet.

433066 DA 1200 light trap ex. flange

Used for retrofitting on DA 1200/1211/1211B when the flange is already on

the building and light dimming is required.

The light-tightness of the light trap is 99.9 %, corresponding to 20,000 lux

outside and 0.05 lux inside (0.05 lux corresponds to 2.5 ppm).

One per inlet.

433155 DA 1200 inlet cover

DA 1200 inlet cover can be used together with the inlets of the DA 1200 se-

ries.

The inlet cover is designed to protect the livestock house against rain/snow

and to provide a certain amount of wind and light dimming effect.

One per wall inlet.

433312 DA 1200 light trap for inlet cover

DA 1200 light trap for inlet is always used together with DA 1200 inlet

cover.

The light trap prevents a large amount of daylight from seeping into the

building ("brown out"). The light trap is made of injection-molded PP

(polypropylene) which is dirt-repellent and easy to clean.

Use one for each DA 1200 inlet cover.

DA 1211 Flange Inlet

Mounting Guide 11

433334 DA 1200 fly screen

DA 1200 fly screen for inlet cover is always used together with DA 1200 in-

let cover.

The fly screen prevents the ingress of flies and the screen is self-support-

ing.

Can only be used for inlets in 1 row.

With regular and sufficient cleaning, the capacity of the inlet is not reduced

by the use of the fly screen.

One per inlet.

433317 Fly screen - 25 m x 1.37 m

Fly screen on a roll prevents the ingress of flies.

With regular and sufficient cleaning there will be no significant pressure

loss, but an emergency opening should be provided via bypass in case the

fly screen is choked.

Use 1 m2 fly screen per 2000 m3/h max. air.

433138 DA 1200 hen net, hinged

The hen net prevents the fledged hens from sitting in the air inlet. The net is

top-hinged, allowing easy access when servicing the inlet.

Screw kit (560333) is ordered separately.

560333 Screw kit DA 1200/1911 hen net

The screw kit is used to mount the hen net.

1 set per hen net.

351585 Tapp. screw 5x30 pan TX25 ZnNi spec.

Used when mounting inlet and accessories in sandwich walls.

DA 1211 Flange Inlet

12 Mounting Guide

3 Mounting guide

Check that all ordered parts are present and undamaged prior to starting the work. Read the directions carefully

before starting mounting.

3.1 Recommended tools

See a list of tools recommended for the installation of the flange inlet below.

Item Description

Cordless drill

Jigsaw

Saw

Hammer

Screwdriver

Sealant gun

Marker pen

Tape measure

Spirit level

Water pump (multi-grip) pliers

Utility knife

Chisel

Try square

DA 1211 Flange Inlet

Mounting Guide 13

Item Description

Atomizer

Wedge

Foam gun

Ladder

3.2 Mounting of sandwich screws

To ensure that the screw makes the right thickening and the best possible thread on the back, the correct hole

must be drilled first and the screwing must be done with the correct momentum depending on the thickness of

the metal in the sandwich panel.

Diameter of

screw [mm]

Thickness of metal in

sandwich panel

[mm]

Size of holes in

sandwich panel

[mm]

Tightness

torque

[Nm]

0.63 - 0.75 ø3.8 2.5

0.75 - 0.88 ø4.1 3.0

0.88 - 1.00 ø4.2 3.5

1.00 - 1.25 ø4.3 3.5

1.25 - 1.50 ø4.4 4.0

DA 1211 Flange Inlet

14 Mounting Guide

3.3 Wall inlet positioning

The positioning of the inlet in a wall depends on the layout of the building and the house layout. The positioning

may therefore only be made according to directions communicated by SKOV A/S or representatives of the com-

pany.

The inlet must be placed horizontally in the wall. The inlet flap should be pointing into the livestock house.

Place the insulation of the brickwork against the inlet all the way round (like in other categories of constructions).

This way you prevent a cold bridge along the side of the inlet from being formed.

The inlet is fixed on the inside wall by screws directly through the flange itself, see section Mounting of inlet in

wall [}16]. In connection with brick and concrete walls, use mounting foam to fix the inlet, see section Foaming

[}18].

3.4 Mounting inlet

3.4.1 Preparing hole in wall

Mark out the correct number of holes according to measurements. Be aware of tolerance.

Distance to coil spring

Min. distance between holes

Min. distance to the wall on the

tensile side, see table below

1200 mm

571 mm

100 mm

xxx mm

280 mm

Distance to the ceiling

283 mm

571 mm

Positioning of actuator Min. distance to the wall on the tensile side

[mm]

Min. 2100 mm

637 mm

637

700 mm 950 mm

1650

Min. 2100 mm

2100

DA 1211 Flange Inlet

Mounting Guide 15

Remember always to use a spirit level.

Drill 4 holes of roughly 10 mm right through the wall.

Cut the holes.

DA 1211 Flange Inlet

16 Mounting Guide

3.4.2 Mounting of inlet in wall

Make sure that the inlet flap is closed.

Use the 2 center marks in the upper flange and the

center marks 2 in the lower flange.

Drill ø6 mm holes in the flange using the center marks.

Use the holes in the flange to mark out holes in the

wall.

An extension piece must be used if the wall thickness

exceeds 11 cm.

Push the extension piece on to the inlet before mount-

ing in the wall.

DA 1211 Flange Inlet

Mounting Guide 17

When mounting in oblique walls it is important to make

corrections otherwise the flap will not close tightly when

the inlet is inserted.

It may be necessary to mount a heavy-duty plate or

wedges between the inlet and the wall in order to avoid

distortion of the inlet.

Use the 2 wedges enclosed with the inlet.

Mount the inlet in the wall using the screws suitable for

the wall type.

At sandwich walls see table Mounting of sandwich

screws [}13].

Remember to use a spirit level and make sure not to

over-tighten the screws as they are tightened directly

against plastic.

Each time a screw is tightened, check that the inlet flap

still closes tightly. Otherwise, you must adjust the

wedges until the inlet flap closes tightly again.

Remove the redundant part of the wedge when all the

screws have been tightened.

DA 1211 Flange Inlet

18 Mounting Guide

3.4.3 Foaming

SKOV A/S recommends one-component polyurethane foam or similar.

Check how much the foam expands before foaming.

Wet the faces with water from a mist sprayer before

proceeding with the foaming.

Foam around the inlet, as shown in the drawing.

Foam the entire depth of the inlet in the corners and

approx. 100 mm to each side of the corners.

It is important only to foam the edge in the middle of

the inlet as the joint would otherwise make the inlet

skew.

Push the foam in against the inlet (5-10 mm) after the

foam has dried a little to allow adequate space for

pointing.

We recommend using a sealant gun.

DA 1211 Flange Inlet

Mounting Guide 19

3.4.4 Mounting the net

Mount the net on the inlet until the click engages.

3.4.5 Mounting of external flange and net

Mount the external flange on the inlet (the wall thick-

ness must be minimum 50 mm).

Next mount the net on the external flange until the click

engages.

DA 1211 Flange Inlet

20 Mounting Guide

3.4.6 Pointing

SKOV A/S Sikaflex AT Connection, single-component MS polymer, or similar.

Complete by applying a sealing edge both inter-

nally and externally when the foam is dry.

Point flat the surface of the pointing.

If the distance between the wall and the edge of

the inlet exceeds 6 mm, sealant tape can be used

before making a sealing edge.

3.4.7 Check the assembly

Check that all the edges are tight and that the inlet flap

closes tightly at both ends.

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Skov DA 1211 Flange Inlet Anti-freeze Mounting Guide

Skov DA 1211 Flange Inlet Anti-freeze Mounting Guide

Skov DA 1211 Flange Inlet Anti-freeze Mounting Guide

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