Skov DA 1540 ceiling inlet Mounting Guide

Brand: Skov

Model: DA 1540 ceiling inlet

Type: Mounting Guide

DA 1540 Ceiling Inlet

Mounting Guide

604158 • 2022-08-03

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DA 1540 Ceiling Inlet

2 Mounting Guide

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 1540 Ceiling Inlet

1 Product description ....................................................................................................................................... 4

1.1 Principle of application ............................................................................................................. 4

2 Product survey ............................................................................................................................................... 5

2.1 Accessories................................................................................................................................ 5

3 Mounting guide............................................................................................................................................... 7

3.1 Recommended tools.................................................................................................................. 7

3.2 Placement in ceiling .................................................................................................................. 8

3.3 Mounting in ceiling .................................................................................................................... 9

3.4 Pointing of insert module and inlet funnel .............................................................................. 9

3.5 Mounting lengthwise of boarding .......................................................................................... 10

3.6 Mounting across boarding...................................................................................................... 10

3.7 Mounting of string and holder for pull rod ............................................................................ 11

3.8 Advanced Inlet Control............................................................................................................ 12

3.9 Adjustment ............................................................................................................................... 12

3.10 Tensile length........................................................................................................................... 12

4 Maintenance instructions ............................................................................................................................ 13

4.1 Recycling/Disposal .................................................................................................................. 13

5 Technical data .............................................................................................................................................. 14

5.1 Dimensioned sketch DA 1540/DA 1540 HP ........................................................................... 15

Mounting Guide

DA 1540 Ceiling Inlet

4 Mounting Guide

1 Product description

The DA 1540 ceiling inlet is an efficient, compact fresh air inlet for ceiling constructions. The inlet opens by

pulling the cord. DA 1540 is used when the ceiling is flat, while DA 1540 HP has more powerful springs, so it

can be used for ceiling pitches up to 15°.

The ceiling inlet is made of dirt-repellent, easy-to-clean, injection-moulded PS, PA and POM.

The inlet is delivered fully assembled. The ceiling inlet consists of an inlet casing, a draw hook with a cord, and

an inlet flap.

Clamp for pull rod

Inlet flap

Inlet casing

1.1 Principle of application

During cold periods, it is possible to

supply the necessary volume of air

at a low air velocity.

During warm periods with high ven-

tilation requirements, DA 1540

maintains the Coanda-effect of the

air along the ceiling.

During hot periods with high ventila-

tion requirements, a large volume of

air can be directed down into the

animal zone.

DA 1540 Ceiling Inlet

Mounting Guide 5

2 Product survey

401350 DA 1540 ceiling inlet

DA 1540 ceiling inlet is a universal air inlet, which brings fresh air into the

house through the attic. DA 1540 ceiling inlet is insulated.

Is supplied incl. operation kit, Advanced Inlet Control and one 526194 DA

1540 clamp for pull rod.

To be used when the ceiling pitch is 0°.

The inlet funnel must be ordered separately if required.

401370 DA 1540 HP ceiling inlet

DA 1540 HP ceiling inlet is a universal air inlet, which brings fresh air into

the house through the attic. DA 1540 HP ceiling inlet is insulated.

Is supplied incl. operation kit, Advanced Inlet Control and one 526194 DA

1540 clamp for pull rod. DA 1540 HP has a reinforced spring compared to

DA 1540 and thus poses a significantly increased winch motor load.

To be used when the ceiling pitch is between 0° and 15°.

If high-pressure cooling is installed, see Technical user guide for high-pres-

sure cooling rearding cooling pipe suspension in the ceiling.

The inlet funnel must be ordered separately if required.

2.1 Accessories

401359 DA 1540 chill inlet update kit

The DA 1540 chill inlet update kit is used for updating the DA 1540 inlet to

the 1540 chill inlet, or as a spare part for the DA 1540 chill inlet.

Note that the required tensile force is increased by an update.

401323 DA 1500/1800 inlet funnel - short

401337 DA 1540/1800 inlet funnel - long

The purpose of using the inlet funnel is partly to increase the incorporation

height of the inlet to a total of 250/400 mm from the lower edge of the ceil-

ing to the upper edge of the inlet funnel. Furthermore, the aerodynamic de-

sign of the inlet funnel ensures optimized inflow conditions which reduce the

pressure loss and thus the energy loss at a given amount of air. This re-

duces the necessary negative pressure in the house.

Use one unit per inlet.

401364 DA 1540/1800 insert module

DA 1540/1800 insert module is used to reduce the air capacity in a single

pen, often at the end of an inlet row.

The insert module can be used with or without the inlet funnel, the inlet fun-

nel will not affect the capacity significantly.

The insert module reduces the air capacity to approx. 55 % at DA 1540 chill

inlet with inlet funnel in chill mode (90-degree opening).

Use one unit per inlet.

DA 1540 Ceiling Inlet

6 Mounting Guide

437482 DA 1500/1800 pipe holder

For DA 1540/1800 ceiling inlet a special pipe hanger has been developed,

which can be used for securing high pressure cooling pipes from SKOV A/

S, if high pressure cooling is installed. The pipe holder can only be used

when the ceiling pitch is 0°.

If the distance between the inlets exceeds approx. 1.5 m supplement the in-

let by item no. 437480 DA 1540/1800 pipe holder with adapter.

If the length of the cooling piping exceeds 40 m, the pressure impact from

the start/stop of pump may cause breakage of the rather long pipe holder.

One per inlet.

437480 DA 1540/1800 pipe holder with adapter - 0.5 m

Used where extra support of the cooling pipe is required. Height approx. 49

cm which means that it is suited for the 437482 pipe holder for DA

1540/1800. The pipe holder can only be used when the ceiling pitch is 0°.

Mount it directly on the ceiling with the two screws supplied.

In Denmark one unit per 1.2 m free-hanging cooling pipe is used - corre-

sponding to normal lath distance.

If the length of the cooling piping exceeds 40 m, the pressure impact from

the start/stop of pump may cause breakage of the rather long pipe holder.

401349 All-purpose holder for pull rod

Is applied if the distance between the inlets exceeds 2 m. The distance from

the ceiling to the pull rod is 6.5 cm when the all-purpose holder is mounted.

Mounted vertically with 2 screws in the ceiling.

413109 Pull rod M8x5500 galv. incl. sleeve

The pull rods are 5.5 m long and the number of pull rods can be determined

using the table below. Please note that house length means the length of

the inlet row in those cases when the pull rods go across the house.

Determine the number of pull rods.

One side with inlets in one row = 1 x house length / 5.5

One side with inlets in two rows = 2 x house length / 5.5

Two sides with inlets in one row = 2 x house length / 5.5

Two sides with inlets in two rows = 4 x house length / 5.5

415033 Coil spring ø30x300 mm stainless

The standard mounting sets for DA 175 contain 2 pcs. coil springs per row.

If the DA 1540 inlet is used with the DA 75A winch motor, it is necessary to

order one extra coil spring per inlet row beside the standard mounting set.

2 coil springs are necessary in continuation of each other due to the long

tensile length.

At assembly, the pretension of the 2 springs in continuation of each other

must be 2300 mm.

DA 1540 Ceiling Inlet

Mounting Guide 7

3 Mounting guide

Before mounting check that

• the building matches the drawings as regards placement, ceiling pitch and ceiling type.

• the part delivery matches the order/item lists.

3.1 Recommended tools

A list of the recommended tools for mounting purposes can be seen below.

Item Description

Cordless drill

Screwdriver bits

Drill kit

Utility knife

Spirit level

Marker pens

Tape measure

Ladder

Try square

DA 1540 Ceiling Inlet

8 Mounting Guide

3.2 Placement in ceiling

The inlet should not to be placed over trough as dripping may occur.

Make sure that there is free space for pull rod and inlet flap.

The insulation material must fit tightly around the inlet.

Take care of various obstacles such as pipes, light fittings, electric cables, etc.

Here, the inlet is shown from above.

Cutout dimension 510 mm x 380 mm.

Dimension between screws 570 mm x 435 mm.

The arrow shows the direction of the air jet.

The outer dimensions of the inlet 590 mm x 584 mm.

Adapt a template of cardboard or a wooden board with the dimensions 510 × 380 mm.

Make sure that there is room for the outer dimensions of the inlet; see below dimensions.

• Minimum 220 mm to the back wall.

• Minimum 120mm between the inlets.

• Minimum 1000 mm to the end wall.

• Minimum 220 mm between the inlets (*500 mm when heating pipes are mounted).

Mark the selected position and cut out.

DA 1540 Ceiling Inlet

Mounting Guide 9

3.3 Mounting in ceiling

Insert four 5 mm screws.

3.4 Pointing of insert module and inlet funnel

If you need to attach the insert module and inlet funnel,

SKOV A/S recommends Sikaflex 111 Stick & Seal.

Point the insert module in these grooves.

Point the inlet funnel in these grooves.

DA 1540 Ceiling Inlet

10 Mounting Guide

3.5 Mounting lengthwise of boarding

Fixing point

25 × 100 mm

Fixing point

25 × 100 mm

Screw

Place an extra board on the continuous formwork, if nec-

essary.

Lift the inlet into place and fasten it with four screws.

Lay out insulation material tightly to the inlet funnel.

Place the inlet funnel as shown.

3.6 Mounting across boarding

Screw Screw

Fixing point

25 × 100 mm

Fixing point

25 × 100 mm

Lay out insulation material tightly to the inlet funnel.

Place the inlet funnel as shown.

It is important that the inlet flap closes tightly.

Adjust misalignments by tightening/slackening the four mounting screws.

DA 1540 Ceiling Inlet

Mounting Guide 11

3.7 Mounting of string and holder for pull rod

Mount holder for pull rod.

Knock the piece out.

Push the holder for the pull rod up into the slot.

Then screw the holder for the pull rod into place.

Mounting of clips for pull rod if the distance between

the inlets is less than 600 mm.

Mount clips with the string on the pull rod.

The arrow shows the direction of the pull rod when the

inlet is opened.

Note that pull rod clips must not collide with the clamp

for pull rod.

Mounting of clips for pull rod if the distance between

the inlets exceeds 600 mm.

DA 1540 Ceiling Inlet

12 Mounting Guide

3.8 Advanced Inlet Control

Normal pull (factory-assembled)

Here the inlet is shown with the draw pawl in

normal pull position.

Place the pawl as shown.

Advanced Inlet Control

The inlet flap opens later compared to nor-

mal pull.

Move the pawl to the position shown.

3.9 Adjustment

Mount the pull rods on the inlets.

Check if all inlets close tightly at slack.

Adjust all inlets with Advanced Inlet Control to open simultaneously, and adjust all inlets with normal opening to

open simultaneously.

3.10 Tensile length

Set the inlets so that nominal opening corresponds to a pull length of 435 mm.

The maximum tensile length is 575mm.

Please note that the tensile length is adjusted from the point where the tension string is tense. Then the inlet be-

gins to open after 40 mm.

DA 1540 Ceiling Inlet

Mounting Guide 13

4 Maintenance instructions

TheDA 1540 does not require special maintenance. Periodically, string and spring are checked for wear.

The product may be cleaned by a high-pressure cleaner without using:

• solvents

• corrosive/caustic agents

4.1 Recycling/Disposal

Products suitable for recycling are marked with a pictogram.

It must be possible for customers to deliver the products to local collection sites/recycling stations in accordance

with local instructions. The recycling station will then arrange for further transport to a certified plant for reuse,

recovery and recycling.

DA 1540 Ceiling Inlet

14 Mounting Guide

5 Technical data

Mechanical

Material 100% recyclable thermoplastic, high-impact material, dimensionally

stable

and UV stabilized

Color Black

Tensile force per inlet

(DA 1540)

kg 2.9

Tensile force per inlet

(DA 1540 HP)

kg 6.1

Tensile length mm 575

Pretension at 2

coil springs

mm 2300

Fan output

30 cm opening With inlet funnel Excl. inlet funnel

Air output at -5 Pa m3/h 1050 850

Air output at -10 Pa m3/h 1450 1250

Air output at -20 Pa m3/h 2100 1750

Air output at -30 Pa m3/h 2550 2100

Air output at -40 Pa m3/h 2950 2450

Environment

Temperature, operation °C (°F) -40 to +40 (-40 to +104)

Storage temperature °C (°F) -40 to +65 (-40 to +149) – and protected against direct sunlight.

Ambient humidity, opera-

tion

% RH 0-95 % RH

Shipment

Weight g 4130

DA 1540 Ceiling Inlet

Mounting Guide 15

5.1 Dimensioned sketch DA 1540/DA 1540 HP

Dimensions in mm

604158 • 2022-08-03 • en-US • Made in Denmark

SKOV A/S • Hedelund 4 • Glyngøre • DK-7870 Roslev

Tel. +45 72 17 55 55 • www.skov.com • E-mail: [email protected]

Skov DA 1540 ceiling inlet Mounting Guide

Skov DA 1540 ceiling inlet Mounting Guide

Skov DA 1540 ceiling inlet Mounting Guide

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