Skov DA 820 Installation instructions manual

DA 820 chimney/wall outlet
Mounting Guide
604346 • 2021-06-29
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DA 820 chimney/wall outlet
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 820 chimney/wall outlet
Mounting Guide
1 Product description........................................................................................................................................6
2 Product survey ...............................................................................................................................................7
2.1 Outline of chimney..................................................................................................................... 7
2.1.1 Above the roof.............................................................................................................................. 8
2.1.2 Lead-through.............................................................................................................................. 10
2.1.3 Attic/section................................................................................................................................ 12
2.1.4 Inlet ............................................................................................................................................ 13
2.2 Outline of wall exhaustion ...................................................................................................... 16
3 Mounting guide.............................................................................................................................................18
3.1 Recommended tools................................................................................................................ 18
3.2 Mounting examples ................................................................................................................. 20
3.2.1 Long chimney............................................................................................................................. 20
3.3 General drawing....................................................................................................................... 21
3.4 Mounting the duct.................................................................................................................... 22
3.4.1 Shortening ducts ........................................................................................................................ 22
3.5 Mounting the outlet cone and roof duct ................................................................................ 23
3.6 Mounting the roof duct and duct............................................................................................ 23
3.7 Mounting roof sheet ................................................................................................................24
3.7.1 Roofing sheet in a corrugated roofing sheet construction.......................................................... 24
3.7.2 Flat roofing sheet in a sandwich panel roofing sheet construction ............................................ 24
3.8 Roof duct in roof ...................................................................................................................... 26
3.8.1 Flat roofing sheet in a corrugated steel plate construction, ridge .............................................. 27
3.8.2 Flat roofing sheet in a corrugated steel plate construction, side................................................ 28
3.8.3 Check if the top is level .............................................................................................................. 30
3.9 Mounting duct unit on roof sheet........................................................................................... 30
3.10 Mounting the environment module ........................................................................................ 31
3.11 Mounting roof cap.................................................................................................................... 32
3.12 Long chimney with outside duct ............................................................................................ 32
3.12.1 Outside duct on roofing sheet .................................................................................................... 32
3.12.2 Outlet cone and roof duct on outside duct ................................................................................. 33
3.12.3 Mounting the insulation .............................................................................................................. 33
3.12.4 Mounting storm protection kit on roof duct with outside duct ..................................................... 34
3.13 Long chimney, single layer..................................................................................................... 35
3.13.1 Shortening of roof ducts............................................................................................................. 35
3.13.2 Mounting the duct in roof duct.................................................................................................... 35
3.13.3 Duct, outlet cone and roof duct up to 4 meters .......................................................................... 38
3.13.4 Mounting storm protection kit on roof duct................................................................................. 39
3.14 Lead-through in ceiling ........................................................................................................... 39
3.15 Mounting the fan ...................................................................................................................... 40
3.15.1 Mounting the fan suspension ..................................................................................................... 40
3.15.2 Mounting air direction baffles ..................................................................................................... 41
3.16 Mounting the bell mouth ......................................................................................................... 41
3.17 Foaming and sealing of the duct unit .................................................................................... 42
3.18 Mounting the safety net........................................................................................................... 42
3.18.1 Mounting safety net on roof duct................................................................................................ 42
3.18.2 Mounting safety net on bell mouth ............................................................................................. 42
3.19 Mounting the light tray ............................................................................................................ 43
3.20 Mounting the light bowl........................................................................................................... 43
3.21 Mounting the drip tray ............................................................................................................. 44
3.22 Wall exhaustion........................................................................................................................ 45
3.22.1 Mounting screws in sandwich panel .......................................................................................... 45

DA 820 chimney/wall outlet
3.22.2 Mounting wall exhaustion........................................................................................................... 45
3.22.3 Mounting supporting ring and relief wire .................................................................................... 48
3.22.4 Mounting wall exhaustion onto a box......................................................................................... 49
3.22.5 Mounting light trap ..................................................................................................................... 51
4 Maintenance instructions ............................................................................................................................52
4.1 Cleaning.................................................................................................................................... 52
4.2 Recycling/Disposal .................................................................................................................. 52
5 Technical data...............................................................................................................................................53
5.1 Dimensioned sketch ................................................................................................................ 53
Mounting Guide

DA 820 chimney/wall outlet
6 Mounting Guide
1 Product description
The DA 820 components are used for extracting air from livestock houses. The DA 820 is aerodynamic and pro-
vides high air output with low energy consumption. TheDA 820 is made of a special polypropylene material,
which withstands heavy high-pressure cleaning The special polypropylene is smooth and anti-soiling and DA
820 is thus easy to clean. Polypropylene is environmentally sound, it is recyclable and no contaminants are gen-
erated in the manufacturing process.
The labyrinth sealing between the roof duct and the roofing sheet ensures a life-long impermeability of the unit
without using silicone, rubber sealing or plastic cover.

DA 820 chimney/wall outlet
Mounting Guide 7
2 Product survey
2.1 Outline of chimney
Above the roof
Lead-through

DA 820 chimney/wall outlet
8 Mounting Guide
Attic/section
Inlet
2.1.1 Above the roof
434610 DA 820 roof cap ø1400, gray
434611 DA 820 roof cap ø1400, black
The roof cap reduces water penetration problems; note, however, that the
chimney output will also be reduced.
Supplied with mounting set.
434612 DA 820 roof cap ø1400 with net, gray
434613 DA 820 roof cap ø1400 with net, black
The roof cap with net prevents birds from entering the house and reduces
water penetration problems, but please note that the chimney output will
also be reduced. Supplied with mounting set.

DA 820 chimney/wall outlet
Mounting Guide 9
434655 DA 820 bird protection f. outlet cone, set
Used to prevent birds making contact with the outlet cone.
Supplied with screws.
434600 DA 820 outlet cone, grey
434601 DA 820 outlet cone, black
Outlet cone which reduces water penetration problems and the pressure
loss. This increases the output of the chimney.
Supplied with screws.
434602 DA 820 roof duct gray
434603 DA 820 roof duct black
Used for roof ducts in roof, outlet cone assembly, and for wall exhaust units.
Supplied with screws, bit and DA 820 mounting guide.
434661 DA 820 environment module
The environment module concentrates the air from the fan to increase the
air jet range over the roof.
434604 DA 820 duct 750 mm, gray
434605 DA 820 duct 750 mm, black
Duct without fan suspension.
Supplied with screws.
434652 DA 820 supporting ring
Use it if there are more than 1.5 meters of duct above the roof, and you use
one supporting ring for each commenced 1.5 m of duct above the roof.
You also use it to stabilize the duct by the fan in the wall exhaustion, so the
duct remains circular.

DA 820 chimney/wall outlet
10 Mounting Guide
434616 DA 820 duct,out ø880x1000 gray
434617 DA 820 duct out ø880x1000 black
It is used as an outer duct around the DA 820 duct when extending the duct
above the roof.
You typically apply the outer duct if customers want a double duct construc-
tion for the sake of being able to insulate to prevent condensation, or if they
experience that it provides increased robustness in the duct construction it-
self. However, there is no requirement to use an outer duct for the DA 820
series.
Remember that insulation (item number 434650) must be purchased sepa-
rately and that a reinforced roofing sheet (item number 434642/434643) is
also required.
It comes with a mounting set.
434650 DA 820 insulation 1200 mm
20 mm insulation with aluminum foil/vapor barrier, which is used together
with 434616/434617.
It comes with the tape.
434449 DA 600/DA820 storm protection kit
To be used if the chimney is extended by more than 1.5 m above the roof.
The storm protection kit stabilizes the exhaust unit with steel wires between
the roof duct and the roof.
Supplied with 24 m Ø4 wire.
2.1.2 Lead-through
434654 DA 820 net, roof duct
The protective net is used for wall exhaustion or where extra protection is
required.
Supplied with cable ties.
434602 DA 820 roof duct gray
434603 DA 820 roof duct black
Used for roof ducts in roof, outlet cone assembly, and for wall exhaust units.
Supplied with screws, bit and DA 820 mounting guide.
407665 DA 600/DA 820 roof flashing PVC 1500 x 1500mm
To be used where roofing sheets are not used.