Skov DA 50-920 Technical User Manual
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Skov DA 50-920 Technical User Manual

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DA 50-920
Technical User´s Guide

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Summary of Contents for Skov DA 50-920

  • Page 1 DA 50-920 Technical User´s Guide...

  • Page 2: Table Of Contents

    Mounting of Suspension ....................18 2.3.18 Fastening of Air Supply Unit to Pull Rod ..............18 Adjustment of DA 50-920 Air Supply Unit ............19 INSTALLATION GUIDE Cable Chart for Recirculation Fan ..............20 Wiring Diagram for Recirculation Fan ............. 21 Diagram for Rotating Direction of the Recirculation Fan .......

  • Page 3: Technical User´s Guide

    Technical User´s Guide SPARE PARTS TECHNICAL DATA Dimensioned Sketch DA 50-650 (in mm) ............27 Dimensioned Sketch DA 50-920 (in mm) ............28 Tensile Force ...................... 29 Air Output ......................29 Technical Data Recirculation Fan ..............29 APPENDIX 1 10.1 Mounting Guide, Garret ..................

  • Page 4: Product Description

    DA 50-650 performs up to 12,250 m /h at 40 Pa negative pressure. DA 50-920 performs up to 18,000 m /h at 40 Pa negative pressure. The high output is obtained without the use of a fan.

  • Page 5: Mounting Guide

    Check that all DA 50-920 units can be placed freely in relation to other equipment, which may be mounted later, such as feed lift, water etc., however, as agreed with the building owner. NB: Note the diameter of the plates for the DA 50-920 units when lifting them past the feed lift, water etc.

  • Page 6: Examples Of Placement In The House

    According to DS/EN 294, the distance must be minimum 270 cm. 2.2.1 Examples of Placement in the House Figure 1 Example of a 50 m long house with one winch motor. Figure 2 Example of a 100 m long house with two winch motors. DA 50-920...

  • Page 7: General Mounting

    Technical User´s Guide General Mounting 2.3.1 General Drawings DA 50-920...
  • Page 8 4. Assemble the next duct and mount it down into the splicing sleeve. 5. Possibly reduce the duct at the top. 6. Press the cloth down over the duct end and fasten it to the roof sheets. 7. Mount the roof cap complete on the duct end. DA 50-920...

  • Page 9: Assembling Of Ducts

    Mount the splicing sleeve 500 mm onto each duct end.  Assemble by means of the enclosed PH TORX 25 A2-70 screws which are to be placed according to the marking-out and drilled holes on the splicing sleeve. DA 50-920...

  • Page 10: Assembling Of Duct And Funnel Tube

    M6×25 bolts, sixteen M6 nuts and 32 washers.  NB: Fasten the supporting ring by means of four wood screws down into the wooden frame. Remember that roles on the funnel tube must be turned lengthwise of the building. See section 2.2.1. DA 50-920...

  • Page 11: Roof Flashing With Neoprene Cloth

    15cm above roof. Pull the cloth into place over the duct and spread it properly on the roof. Place the top roofing sheets over the cloth. Mount various screws for fixation of cloth and roofing sheets. DA 50-920...

  • Page 12: Roof Flashing With Roofing Felt

    Roof Flashing with Roofing Felt  Begin by fastening small strips of roofing felt to the roof and the duct with a burner.  Finish by fastening a strip of roofing felt all the way around the duct with a burner. DA 50-920...

  • Page 13: Mounting Of Bell Mouth On Duct

    Assemble the bell mouth and the net by means of eight holders for wire mesh, eight 5×30 mm screws and eight washers.  NB: The groove in the holder for wire mesh must engage with the wire at the bottom of the net. DA 50-920...

  • Page 14: Mounting Of Rain Screen On Net

    2.3.12 Fastening of Mounting Fitting (433491) on Duct Figure 11  Use four mounting fittings per unit. Place the mounting fitting on the outside of the duct.  Drill twelve Ø6.5 mm holes in the duct according to the holes in the mounting fittings. DA 50-920...

  • Page 15: Mounting Of Adjustment Fitting With Spring On The Bottom Plate

    2.3.14 Mounting of Intermediate Plate (optional equipment) and Bottom Plate Figure 13  Mount the intermediate plate (optional equipment) with string and bushes. Place the string up around the horizontal black fitting.  Mount the bottom plate with wires and bushes. DA 50-920...

  • Page 16: Mounting Of Recirculation Fan (Optional Equipment)

    Fasten the contact box on the plate by means of two 5×20 mm screws.  NB: It is important to observe the 110 mm measurement! Make sure not to drill/screw through the plate, as this would allow water to leak into the cavity of the plate. DA 50-920...

  • Page 17: Measuring And Mounting Of Pull Rod

    NB: When the winch motor is completely closed, the pull rod must extend 200 mm from the last wheel holder opposite the winch motor.  It is not necessary to use a coil spring. There is a back-pull of 15-25 kg from each air supply unit. DA 50-920...

  • Page 18: Mounting Of Suspension

    The pull rod must be placed to the left of the DA 50-920. See section 2.2.1. This also means that you must make sure that the large wire lock of the DA 50-920 funnel tube is to the left. ...

  • Page 19: Adjustment Of Da 50-920 Air Supply Unit

    Technical User´s Guide Adjustment of DA 50-920 Air Supply Unit The distance from the bottom of the drip nose (point a) of the air supply unit to the edge of the intermediate plate (point c) must be c 150 mm. (Is delivered prefabricated in correct length).

  • Page 20: Installation Guide

    Level detector and switch may possibly be mounted in the controller/computer on a DIN bar.  A Switch must be used if there are more than three fans. Is not supplied by SKOV A/S.  NB: Power to the recirculation fan should be supplied by means of a watertight CE plug in view of dismantling during cleaning.

  • Page 21: Wiring Diagram For Recirculation Fan

    If a recirculation fan is installed, it must be connected according to the above diagram.  NB: Power to the recirculation fan should be supplied by means of a watertight CE plug in view of dismantling during cleaning. DA 50-920...

  • Page 22: Diagram For Rotating Direction Of The Recirculation Fan

    NB: Diagram for correct connection of the rotating direction. 4 EC Declaration of Conformity We, SKOV A/S, hereby declare that the DA 50 recirculation fan was manufactured in conformity with the provisions in the COUNCIL DIRECTIVE of 14 June 1989 on mutual approximation of the laws of...

  • Page 23: User's Guide

    Take down the DA 50 units and separate them into metal parts, plastic parts, fibreglass parts and electronic parts and dispose of them in accordance with the instructions of the local authorities. You can also return the DA 50 units to SKOV A/S. We will then ensure correct disposal. DA 50-920...

  • Page 24: Trouble Shooting Instructions

    Condensation and await thawing DA 50 plates are swinging Check if the recirculation The recirculation fan is Connect the recirculation fans runs in the right connected incorrectly fan according to the direction diagram under Installation Guide DA 50-920...

  • Page 25: Spare Parts

    Technical User´s Guide 8 Spare Parts Figure 27 DA 50-920...
  • Page 26 DA 50-920 Bell mouth, grey 433582 ** DA 50-920 Bell mouth, black 433483 * DA 50-920 Net 433489 * DA 50-920 Rain screen for roof cap, grey 433589 ** DA 50-920 Rain screen for roof cap, black 433482 DA 50-920 Bell mouth, grey 433582...

  • Page 27: Technical Data

    Technical User´s Guide 9 Technical Data Dimensioned Sketch DA 50-650 (in mm) DA 50-920...

  • Page 28: Dimensioned Sketch Da 50-920 (In Mm)

    Technical User´s Guide Dimensioned Sketch DA 50-920 (in mm) DA 50-920...

  • Page 29: Tensile Force

    The test of the DA 50-650 has been accomplished by SKOV A/S (unofficial test). The test of the DA 50-920 has been accomplished by DJF, task no. 2002-10 (unofficial test). The test has been made with ducts without fan and mounted with net, rain screen, bell mouth, intermediate plate and bottom plate, 12.5 cm + 25 cm.

  • Page 30: Appendix

    The unit must rise above the insulation.  Check if a net is mounted in the eaves of the building; if not, it must be mounted on the ceiling on top of the bell mouth of the DA 50-920. Figure 29 ...

  • Page 31: Appendix

    In areas with much snow, unfavourable wind actions etc. it may be relevant with a higher placement.  The measure of 1500 mm from the edge of the funnel tube and horizontally out to the roof must be observed also; otherwise it may cause problems with the air velocity among the birds. DA 50-920...
  • Page 32 2. Keep horizontal. Must be moved up/down and around until the marking-out is finished. 3. Draws the marking-out. Figure 34  Cut the hole in the roof according to the marking-out.  It is important that the cutting tool be held vertically so that the hole through the roof is vertical. DA 50-920...

  • Page 33: Mounting Guide, Free Hanging Ridge

    The measure of 150 mm, as shown in the figure, must be observed for the sake of the roof flashing.  The measure of 1500 mm from the edge of the funnel tube and horizontally out to the roof must be observed also; otherwise it may cause problems with the air velocity among the birds. DA 50-920...
  • Page 34 2. Keep horizontal. Must be moved up/down and around until the marking-out is finished. 3. Draws the marking-out. Figure 40  Cut the hole in the ridge according to the marking-out.  It is important that the cutting tool be held vertically so that the hole through the ridge is vertical. DA 50-920...

  • Page 35: Appendix

    The two measures of 150 mm, as shown in the figure, must be observed for the sake of the roof flashing. Water may leak into the unit and down into the house if the measurements are not observed. In areas with much snow, unfavourable wind actions etc. it may be relevant with a higher placement. DA 50-920...
  • Page 36 Use an “adjustable” compass for marking out the hole for the unit. Adjust the compass to 480 Keep vertical. Keep horizontal. Must be moved up/down and around until the marking-out is finished. Draws the marking-out. Figure 46  Cut a Ø960 mm hole in the ceiling. DA 50-920...
  • Page 37 Mount a wooden frame on the underside of the roof construction and fasten it to the roof construction.  Fasten the duct to the wooden frame by means of twelve 5×40 mm screws and washers, which must be fastened from inside the duct and out into the wooden frame. DA 50-920...

  • Page 38: Mounting Guide, Ridge Through Garret

    Mark out the centre of the unit in the ridge. The marking-out from the ridge towards the ceiling can be made by means of a string and a plumb bob.  Check that the duct passes rafters etc. centrally and freely. DA 50-920...
  • Page 39 Cut a Ø960 mm hole in the ceiling.  Cut the hole in the roof according to the marking-out.  It is important that the cutting tool be held vertically so that the hole through the roof is vertical. DA 50-920...
  • Page 40 Mount a wooden frame on the underside of the roof construction and fasten it to the roof construction.  Fasten the duct to the wooden frame by means of twelve 5×40 mm screws and washers, which must be fastened from inside the duct and out into the wooden frame. DA 50-920...

  • Page 41: Mounting Guide, Monoblock House

     Check that the duct passes rafters etc. centrally and freely.  Cut a Ø960 mm hole in the ceiling.  Fasten the mounting fitting by means of two 6×50 mm wood screws down into the roof construction. DA 50-920...

  • Page 42: Mounting Guide, Flat Roof

     Check that the duct passes rafters etc. centrally and freely.  Cut a Ø960 mm hole in the ceiling.  Fasten the mounting fitting by means of two 6×50 mm wood screws down into the roof construction. DA 50-920...
  • Page 44 SKOV A/S • Hedelund 4 • Glyngøre • DK-7870 Roslev Tlf. +45 72 17 55 55 • Fax +45 72 17 59 59 • www.skov.com • E-mail: skov@skov.dk...

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