2023.10.04 • 604275
DA 150B HD Pad Cooling
Technical User Guide
DA 150B HD Pad Cooling
Product and documentation changes
SKOV A/S reserves the right to change this manual and the product described herein without further notice. In
case of doubt, please contact SKOV A/S.
Date of change appears from the front and the back page.
In case of misoperation or improper use, cooling systems can result in production loss or cause
loss of lives among animals.
SKOV A/S recommends that cooling systems be mounted, operated and serviced only by
trained staff and that a separate emergency opening unit and an alarm system be installed as well
as maintained and tested at regular intervals, according to SKOV A/S’s terms and conditions of
sale and delivery.
Qualified personnel must perform installation, service and fault-finding of all electrical
equipment in accordance with the applicable national and international standard EN 60204-1
and any other EU standards that are applicable in Europe.
The installation of a power supply isolator is required for each motor and power supply to
facilitate voltage-free work on the electrical equipment. SKOV A/S does not supply the power
supply isolator.
Note
• All rights reserved. No part of this manual may be reproduced in any manner whatsoever without
the express written permission of SKOV A/S in each case.
• SKOV A/S has made reasonable efforts 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 notified thereof.
• Irrespective of the above, SKOV A/S shall not have any liability with respect to loss or damage
caused or alleged to be caused by reliance on any information contained herein.
• Copyright by SKOV A/S.
Technical User Guide 3
DA 150B HD Pad Cooling
1 Product description ................................................................................................. 5
1.1 Overview of DA 150B HD pad cooling system .................................................................. 6
1.1.1 Check valve, PVC glue union and pad cooling HD mounting parts ........................................................ 6
1.1.2 DA 150B HD pad cooling, supply unit ..................................................................................................... 7
1.1.3 DA 150B HD pad cooling, middle/end kit 6 m ......................................................................................... 8
1.1.4 DA 150B HD pad cooling, extension 2x3m ............................................................................................. 9
1.1.5 DA 150B HD frequency converter ......................................................................................................... 10
1.1.6 Pad ........................................................................................................................................................ 11
1.1.7 DA 150B Pump ...................................................................................................................................... 11
1.1.8 DA 150B Glue kit - max. 12 m ............................................................................................................... 12
2 General information ................................................................................................13
2.1 Recommended tools ......................................................................................................... 13
2.2 Safety guidelines - intended use ...................................................................................... 15
2.3 Electrical system ............................................................................................................... 15
2.3.1 Circuit diagram 1x230 V ........................................................................................................................ 16
2.3.2 Circuit diagram frequency converter and pump .................................................................................... 16
2.3.3 Circuit diagram frequency converter and two pumps ............................................................................ 17
3 Mounting guide .......................................................................................................18
3.1 Mounting of sandwich screws ......................................................................................... 18
3.2 Total height of pad cooling system, wall ......................................................................... 18
3.3 Total height of pad cooling system, floor ........................................................................ 19
3.4 Opening for pad cooling ................................................................................................... 19
3.5 Bracket for water gutter .................................................................................................... 20
3.5.1 Even number of extension sets ............................................................................................................. 20
3.5.2 Uneven number of extension sets ......................................................................................................... 20
3.6 Water gutter ....................................................................................................................... 21
3.7 Top bracket........................................................................................................................ 22
3.8 Water distribution pipe ..................................................................................................... 23
3.9 Deflector ............................................................................................................................ 24
3.10 Inner pad guide ................................................................................................................. 25
3.11 Piping ................................................................................................................................. 25
3.11.1 Supply unit ............................................................................................................................................. 26
3.11.2 Mounting check valve (system 2) .......................................................................................................... 26
3.11.3 Water distribution .................................................................................................................................. 27
3.11.4 Prior start up .......................................................................................................................................... 27
3.11.1 End cover with overflow protection ....................................................................................................... 28
3.11.2 Use of frequency converter (system 2) ................................................................................................. 29
3.11.3 Frequency converter settings: ............................................................................................................... 30
3.12 Glue instruction ................................................................................................................ 31
3.12.1 Glued connections ................................................................................................................................. 31
3.12.2 Safety advice – Tangit PVC-U/C ........................................................................................................... 32
3.12.3 Glue water gutter and pipes .................................................................................................................. 33
3.13 Covers ................................................................................................................................ 35
3.14 Bleed off valve ................................................................................................................... 36
3.15 Pad ..................................................................................................................................... 37
3.16 Outer pad guide ................................................................................................................ 37
3.17 Pointing sealing edge ....................................................................................................... 38
3.17.1 Flat and smooth wall ............................................................................................................................. 38
3.17.2 Uneven and not smooth wall ................................................................................................................. 38
4 Technical User Guide
DA 150B HD Pad Cooling
4 Maintenance instructions .......................................................................................39
4.1 Maintenance routines ....................................................................................................... 39
5 Technical data .........................................................................................................42
5.1 DA 150B HD pad cooling .................................................................................................. 42
5.2 Frequency converter ......................................................................................................... 43
5.3 Load on the bracket .......................................................................................................... 43
5.4 Water quality ..................................................................................................................... 43
Technical User Guide 5
DA 150B HD Pad Cooling
1 Product description
DA 150B HD pad cooling is applied for cooling of large air quantities in tunnel ventilation systems. Fresh air is
directed through pads by means of negative pressure in the house. When cooling is required, the pads are kept
moist with water, which circulates from lower gutter to the top of the pad. Pad cooling can be mounted on the
wall or on the floor.
Pad cooling DA 150B HD is specially designed for cooling in hot and dry climate zones (zones with high
cooling potential). This is a result of optimization of the water amount and cooling on-time, which creates a
uniform cooling across the pads.
The system exists in 2 versions:
1. The water performance is aligned to 9 liter/min/meter pad. (System 1)
2. The water performance is aligned down to below 9 liter/min/meter pad. (System 2)
Figure 1: Pad cooling overview
Figure 2: Pad cooling with frequency converter overview
Frequency converter
Controller
6 Technical User Guide
DA 150B HD Pad Cooling
1.1 Overview of DA 150B HD pad cooling system
The “DA 150B HD pad cool basic 6m” is a complete 6 m pad cooling system and consist of a check valve,
PVC glue union, pad cooling HD mounting parts, supply unit and a middle element with end kit.
The following part numbers are available:
• 437785 DA 150B HD pad cool basic 6m 1x230V 50Hz
• 437786 DA 150B HD pad cool basic 6m 1x230V 60Hz
If a DA 150B HD pad cooling system longer than 6 m is required use part number:
• 437825 DA 150B HD pad cool extension 2x3m
The total length of a DA 150B pad cooling system must not exceed 24 metres.
1.1.1 Check valve, PVC glue union and pad cooling HD mounting parts
Check valve, PVC glue union and pad cooling HD mounting parts are included in the “DA 150B HD pad
cooling, basic 6 m”.
The following part numbers is available:
• 510109 Check valve brass 2" sl/sl
• 522511 PVC glue union 2", BOA
• 560242 DA 150B HD pad cool mounting parts
510109/522511/560242 Parts
Pos.
Number
Description
Pos.
Number
Description
1*
1
Check valve brass 2" sl/sl
5
1
PAD cooling throttle disk, 9 meter
2
1
PVC adhesive union 2", BOA
6
1
PAD cooling throttle disk, 12 meter
3
1
2" Nylon Washer 79x61x4 mm
7
1
PAD cooling throttle disk, 15 meter
4
1
2" EPDM sealing 59x83x4 mm
8
1
PAD cooling throttle disk, 18 meter
Technical User Guide 7
DA 150B HD Pad Cooling
1.1.2 DA 150B HD pad cooling, supply unit
DA 150B HD pad cooling, supply unit is included in the “DA 150B HD pad cool basic 6m”, can be ordered
separately.
The following part numbers are available:
• 437770 DA 150B pad cool supply 1x230V 50Hz
• 437771 DA 150B pad cool supply 1x230V 60Hz
437770/437771 DA 150B pad cool supply 1x230V 50/60Hz
Pos.
Number
Description
Pos.
Number
Description
1*
1
DA 150B pump 230 V 60 Hz
DA 150B pump 230 V 50 Hz
7
1
Motor cover
2
1
T- glue coupler 2"
8
1
Transition piece (glued)
3
4
Elbow glue coupler 2"
9
1
Bleed off valve (glued)
4
1
Ball Valve 2"
10
1
Tube ¾” black
5
6
Washer A 6,4
11
1
Clamp ¾”
6
6
Fasteners 6x40
8 Technical User Guide
DA 150B HD Pad Cooling
1.1.3 DA 150B HD pad cooling, middle/end kit 6 m
DA 150B HD pad cooling, middle/end kit is included in the “DA 150B HD pad cool basic 6m”.
The following part number is available:
• 437787 DA 150B HD pad cool middle/end kit 6m
437787 DA 150B HD pad cool middle/end kit 6m
Pos.
Number
Description
Pos.
Number
Description
1
4
Pad guide coupler cpl.
11
7
Bracket for water gutter
2
2
Deflector 3000 mm hinged
12/13
56
Fasteners 6x40
3
4
Pad guide 3000 mm
14/15
56
Washer A 6.4
4
2
Water distribution pipe 2" 3/125-3000
mm
16
4
Clamp for pipe connector 50-70 mm
5
1
Water gutter 2500 mm
17
2
Pad end-cover 6"
5
1
Water gutter 3000 mm
18
2
End cover deflector 6” hinged
6
8
Top bracket hinged 150 mm Pad
19
2
End cover for drain off
7
2
Pipe connector
20
2
Sealing cap 2"
8
3
Joint for water gutter
21
2
Flat gasket 59x75x2
9
2
Pad Support 3000 mm
22
2
Transition piece 2“
10
2
Deflector coupler hinged
23
1
Water pipe 2” 2500 mm
Technical User Guide 9
DA 150B HD Pad Cooling
1.1.4 DA 150B HD pad cooling, extension 2x3m
DA 150B HD pad cooling, extension 2x3 m is used if a pad cooling system longer than 6 meter is required.
The total length of a pad cooling system can be up to 24 metres.
The following part number is available:
• 437825 DA 150B HD pad cool extension 2x3m.
437825 DA 150B HD pad cool extension 3m (middle element)
Pos.
Number
Description
Pos.
Number
Description
1
4
Pad guide coupler cpl.
8
2
Joint for water gutter
2
2
Deflector 3000 mm hinged
9
2
Pad Support 3000 mm
3
4
Pad guide 3000 mm
10
2
Deflector coupler hinged
4
2
Water distribution pipe 2" 3/125-3000
mm
11
8
Bracket for water gutter
5
2
Water gutter 3000 mm
12/13
48
Fasteners 6x40
6
8
Top bracket hinged 150 mm Pad
14/15
48
Washer A 6.4
7
2
Pipe connector
16
4
Clamp for pipe connector 50-70 mm
10 Technical User Guide
DA 150B HD Pad Cooling
1.1.5 DA 150B HD frequency converter
DA 150B HD Frequency converter with pad cooling HD adjustment kit is used if the water performance is
aligned down to below 9 liter/min/meter pad (system 2).
The following part number is available:
• 437764 DA 150B HD Frequency converter
• 560243 DA 150B HD pad cool adjustment kit
437764 DA 150B HD Frequency converter
Pos.
Number
Description
Pos.
Number
Description
1
1
Frequency converter FXET10AMQ
5
2
Set screw M5x12, A2
2
2
Push-in fitting M5x6 mm
6
2
O ring ø3,68x1,78
3
1
Threaded Stud M5
7
0.6 m
Ø6 mm Plast hose transperant
4
1
Drill Ø4,1 mm HSS
Technical User Guide 11
DA 150B HD Pad Cooling
1.1.6 Pad
Pad
Pos.
Number
Item no.
Description
1
1
437269
Pad 150x600x1500 45/15 S
1
1
437270
Pad 150x600x1800 45/15 S
1
1
437271
Pad 150x600x2000 45/15 S
1
1
437269F
Pad 150x600x1500 45/15 S
2
1
437256F
Pad 150x600x1200 45/15 H
2
1
437251F
Pad 150x600x1800 45/15 H
2
1
437250F
Pad 150x600x2000 45/15 H
3
1
437290
Pad 150x600x1500 45/15 G
3
1
437291
Pad 150x600x1800 45/15 G
3
1
437292
Pad 150x600x2000 45/15 G
4
1
437313
Pad 150x600x1500 green stripe 45/15
4
1
437314
Pad 150x600x1800 green stripe 45/15
4
1
437315
Pad 150x600x2000 green stripe 45/15
4
1
437314F
Pad 150x600x1800 green stripe 45/15
5
1
437287
Pad 150x600x1500 45/15 black coated S
5
1
437288
Pad 150x600x1800 45/15 black coated S
5
1
437289
Pad 150x600x2000 45/15 black coated S
5
1
437288F
Pad 150x600x1800 45/15 black coated S
5
1
437289F
Pad 150x600x2000 45/15 black coated S
6
1
437284
Pad 150x600x1500 45/15 black coated
6
1
437285
Pad 150x600x1800 45/15 black coated
6
1
437286
Pad 150x600x2000 45/15 black coated
7
1
437279
Pad 150x600x2000 45/45 S
1.1.7 DA 150B Pump
DA150B pump
Item no.
Description
437371
DA 150B pump 1x230V 50Hz
437370
DA 150B pump 1x230V 60Hz
1
2
3
4
6
5
7
12 Technical User Guide
DA 150B HD Pad Cooling
1.1.8 DA 150B Glue kit - max. 12 m
437584 DA 150B Glue Kit - max. 12 m
Pos.
Number
Item no.
Description
1
1
530187
PVC-U glue Tangit 500g
2
1
530181
PVC-U cleaning fluid Tangit 1000ml
3
1
530003
Brush
4
4
530186
PVC-U glue Tangit 125 g paste tube
-
1
604170
Safety advice – Tangit PVC-U/C
1
4
2
3
Technical User Guide 13
DA 150B HD Pad Cooling
2 General information
2.1 Recommended tools
Below is a list of tools required for installation of your SKOV pad cooling system.
Item
Description
Electrical jig saw
Blades for cutting steel
Blades for cutting wood
Angle grinder
With grinder disk for steel/iron
Impact drill for cement/concrete work
With various sized bits for drilling
Step ladder that can reach all the way up to ceiling
Hand saw
Cordless battery drill with spare batteries
With various metric sized bits for screws
With various metric sized socket (must have
8/10/13mm)
With various metric sized bits for drilling steel/wood
Spirit level (1 meter in length)
Tape measure/measure tools
14 Technical User Guide
DA 150B HD Pad Cooling
Item
Description
Chalk string
Hammer
Screwdriver set
Pliers wrench
Vise-grip
Knife/cutter
Marking pencil
Spanner/wrench set in metric measurement
Adjustable spanner 10”
Ratchet tie down 20 meters
Hole saw 76 mm
Market pen
Technical User Guide 15
DA 150B HD Pad Cooling
2.2 Safety guidelines - intended use
These Operating Instructions include the most important information in connection with operating the pad
cooling system in a safe manner.
The relevant guidelines for the prevention of accidents as well as other generally recognised
technical safety and medical regulations for the workplace must be observed.
Check that the safety and functional equipment works safely and correctly:
• prior to start-up
• at appropriate intervals
• after modifications or maintenance.
The specifications outlined by the water and energy utility companies must also be observed.
The system is exclusively intended for cooling/air-conditioning. Usage for other purposes is not intended, like
e.g. pumping other liquids than water. The manufacturer/supplier is not responsible for damage resulting from
this. The user is solely responsible for the use.
To the intended use also belongs the attention of the manual and the adherence to of the maintenance
conditions.
2.3 Electrical system
Qualified personnel must perform installation, service and fault-finding of all electrical
equipment in accordance with the applicable national and international standard EN 60204-1 and
any other EU standards that are applicable in Europe.
The installation of a power supply isolator is required for each motor and power supply to
facilitate voltage-free work on the electrical equipment. SKOV A/S does not supply the power
supply isolator.
Mount the pump according to the supplier instruction manual.
The pump must be shielded from direct sunlight (50°C).
Mount the frequency converter according to the supplier instruction manual.
Note that the frequency converter must be placed next to the controller.
All tasks extending beyond the framework of system maintenance may only be carried out by qualified
personnel.
Always isolate the power supply when working on the device and secure against unauthorised reactivation by
another person.
Examine electrical cables for visible damage prior to commissioning.
Replace any damaged lines before putting the device into operation.
Damaged or destroyed plug devices must be replaced by a qualified electrician.
Covering electrical components can give rise to heat concentration with high temperatures which can in turn
destroy the equipment and cause fires.
16 Technical User Guide
DA 150B HD Pad Cooling
2.3.1 Circuit diagram 1x230 V
2.3.2 Circuit diagram frequency converter and pump
Technical User Guide 17
DA 150B HD Pad Cooling
2.3.3 Circuit diagram frequency converter and two pumps
18 Technical User Guide
DA 150B HD Pad Cooling
3 Mounting guide
3.1 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]
5
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
3.2 Total height of pad cooling system, wall
Overview of the total height of a wall-mounted pad cooling system.
A = Wall opening = D minus 115 mm
B = Measure from the lower edge of the
top
bracket to the top of the pad support.
1540 mm
1840 mm
2040 mm
C = Wall
D = Height of pads:
1500 mm
1800 mm
2000 mm
E = Bracket for water gutter
F = Water gutter and bracket (340 mm)
G = Substructure, concrete, wood or steel
(optional)
H = Full height of system, L1/L2 + A + F
J = The opening in the wall should have a
frame made of a water-resistant
material. The frame is not supplied by
SKOV A/S.
Important: The frame must be
smooth, in level and able to hold the
weight of the pad cooling system, see
section 5.3 and 3.17.
L1 = 170 mm
L2 = 320 mm
Figure 3: Total height – wall-mounted
Technical User Guide 19
DA 150B HD Pad Cooling
3.3 Total height of pad cooling system, floor
Overview of the total height of a floor-mounted pad cooling system.
A Wall opening = D minus 115 mm
B = Measure from the lower edge of the top
bracket to the top of the pad support.
1540 mm
1840 mm
2040 mm
C = Wall
D = Height of pads:
1500 mm
1800 mm
2000 mm
E = Bracket for water gutter
F = Water gutter and bracket (340 mm)
G = Substructure, concrete, wood or steel
(optional)
Important, must be smooth and in level
H = Full height of system, L1/L2 + A + F
J = The opening in the wall should have a
frame made of a water-resistant
material. The frame is not supplied by
SKOV A/S.
Important: The frame must be smooth
and in level, see section 3.17.
L1 = 170 mm
L2 = 320 mm
Figure 4: Total height – floor-mounted
3.4 Opening for pad cooling
The following measurement are required to make the
opening in the wall:
• Minimum 340 mm from level floor.
• Height of opening = Pad height minus 115 mm.
• Length of opening = Pad length minus 50 mm.
It is important that the vertical sides are
perpendicular to the horizontal sides.
• Use a square to make the sides perpendicular.
• Use a chalk line as guide when cutting the
opening.
Figure 5: Wall opening
Pad height
(minus 115mm)
Height from floor
Min. 340mm
Chalk line
20 Technical User Guide
DA 150B HD Pad Cooling
3.5 Bracket for water gutter
Make sure that the edge of the opening is covered and waterproof before mounting the pad system.
Following measurements must be done:
• Make a horizontal chalk line 340 mm from the row of
openings along the edge.
• When you mark out for bracket screw holes, the base
of the bracket must follow the chalk line.
• Mark out for position of the supply unit to start with.
See below if necessary.
• Hereafter, there should be an interval of max. 750
mm between the brackets
• End brackets must be placed with a distance of 100
mm from the end of the opening.
• Mount the brackets for the supply unit in the desired
position, in that way the water gutter follows a
horizontal line.
Figure 6: Flashing
3.5.1 Even number of extension sets
Dimensions in mm.
3.5.2 Uneven number of extension sets
Dimensions in mm.
Center of the hole
Bracket for
supply unit
Max. 750 mm between
brackets for pad support
Center of the hole
Bracket for
supply unit
Max. 750 mm between
brackets for pad support
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