Skov BF 50 LPC-3 Manual

BF 50 LPC -3
Wall Fans
Technical User Guide
604490 • 2022-03-01
English For other language variants of this document we refer to:
Español Para otras variantes del idioma de este documento, visite:
Français Pour les versions dans d'autres langues de ce document veuillez consulter:
http://docs.skov.com/1241

BF 50 LPC -3
Technical User 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.
IMPORTANT!
Notes concerning alarm systems
Breakdowns, malfunctions or faulty settings may cause substantial damage and financial losses when regulat-
ing and controlling the climate in a livestock house. It is therefore essential to install a separate, independent
alarm system that monitors the house climate concurrently with the climate and production controller. According
to EU-directive No. 98/58/EU, an alarm system must be installed in all mechanically ventilated houses.
We would like to draw your attention to the fact that the product liability clause of general terms and conditions
of sale and delivery specifies that an alarm system must be installed.
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.

BF 50 LPC -3
Technical User Guide
1 Product description........................................................................................................................................7
2 Product survey ...............................................................................................................................................8
2.1 BF 50 wall fans .......................................................................................................................... 9
2.1.1 Type key ...................................................................................................................................... 9
2.2 Accessories.............................................................................................................................. 11
3 Mounting guide.............................................................................................................................................13
3.1 Recommended tools................................................................................................................ 13
3.2 Placement of BF 50 ................................................................................................................. 15
3.3 Preparing hole in wall.............................................................................................................. 15
3.3.1 Necessary space for BF 50 with LPC motor controller .............................................................. 15
3.3.2 Necessary space for BF 50 without cone .................................................................................. 15
3.3.3 Measurements for square hole in wall ....................................................................................... 16
3.3.4 Measurements for square hole in wall with cone ....................................................................... 17
3.4 Measure and saw out the holes.............................................................................................. 18
3.5 Drainage holes ......................................................................................................................... 19
3.6 Mounting in wall....................................................................................................................... 20
3.6.1 Mounting with four brackets ....................................................................................................... 21
3.6.2 Mounting of four angle bars ....................................................................................................... 22
3.6.3 Mounting in wooden frame......................................................................................................... 23
3.6.4 Foaming ..................................................................................................................................... 24
3.6.5 Pointing ...................................................................................................................................... 27
3.7 Removing the transport bracket............................................................................................. 28
3.8 Mounting of inside safety net ................................................................................................. 29
3.9 Manual opening of motor controlled shutter ........................................................................30
3.10 Mounting of accessories......................................................................................................... 33
3.10.1 Cone .......................................................................................................................................... 33
3.10.2 Outside safety net ...................................................................................................................... 34
3.10.2.1 Without cone .............................................................................................................................. 34
3.10.2.2 With cone ................................................................................................................................... 35
3.10.3 Insulation plate........................................................................................................................... 36
3.10.4 Shading kit ................................................................................................................................. 37
3.10.5 Light trap .................................................................................................................................... 39
4 Installation guide ..........................................................................................................................................40
4.1 Electrical connection............................................................................................................... 40
4.1.1 Disclaimer at retrofitting fans ..................................................................................................... 40
4.1.2 Mains supply dimensioning regarding harmonic distortion ........................................................ 40
4.1.3 Overvoltage protection............................................................................................................... 40
4.1.4 Position of motor controller/frequency converter ....................................................................... 41
4.1.5 Mounting distances for the motor controller/frequency converter .............................................. 41
4.1.6 Cabling into the motor controller/frequency converter ............................................................... 41
4.1.7 Cabling to connection box and LPC motor controller................................................................. 42
4.2 Connection in the LPC motor controller/frequency converter ............................................ 43
4.2.1 Terminals for one-phase supply................................................................................................. 44
4.2.2 Terminals for three-phase supply .............................................................................................. 44
4.2.3 Terminals for power supply of fan.............................................................................................. 44
4.2.4 Signal terminals ......................................................................................................................... 45
4.3 LED indication on display ....................................................................................................... 46
4.4 Operation .................................................................................................................................. 46
4.4.1 Change 10-0 V analog input into 0-10 V.................................................................................... 48
4.5 Emergency opening for BF 50 actuator – house controller................................................. 50
4.5.1 Fan active at power failure......................................................................................................... 50
4.5.2 Fan not active at power failure................................................................................................... 51
4.6 Connection to actuator............................................................................................................ 52

BF 50 LPC -3
4.6.1 BF 50 LPC actuator time-controlled........................................................................................... 52
4.6.2 BF 50 LPC actuator stepless ..................................................................................................... 52
4.7 Connection of extra 24 V power supply................................................................................. 53
4.8 General information about circuit diagrams ......................................................................... 54
4.8.1 Color code.................................................................................................................................. 54
4.8.2 Power supply isolator................................................................................................................. 54
4.8.3 Letter code ................................................................................................................................. 54
4.9 Cable plans and circuit diagrams........................................................................................... 55
4.9.1 Circuit diagram for OFF/AUTO/ON switch ................................................................................. 55
4.9.1.1 BF 50 LPC -3 ............................................................................................................................ 55
4.9.2 Circuit diagram for emergency opening ..................................................................................... 55
4.9.2.1 BF 50 LPC -3 ............................................................................................................................ 55
4.9.3 BF 50 LPC -3 with reverse (1x230 V) ....................................................................................... 56
4.9.3.1 Cable plan.................................................................................................................................. 56
4.9.3.2 Circuit diagram........................................................................................................................... 56
4.9.4 BF 50 LPC -3 with alarm relay (1x230 V) .................................................................................. 57
4.9.4.1 Cable plan.................................................................................................................................. 57
4.9.4.2 Circuit diagram........................................................................................................................... 57
4.9.5 BF 50 LPC -3 BF 50 LPC -3 1x230 V variable ON/OFF (435444) ............................................ 58
4.9.5.1 Cable plan.................................................................................................................................. 58
4.9.5.2 Terminals in LPC 1x230 V fan ................................................................................................... 58
4.9.5.3 Circuit diagram........................................................................................................................... 59
4.9.6 BF 50 LPC -3 1x230 V stepless (435443) ................................................................................ 60
4.9.6.1 Cable plan.................................................................................................................................. 60
4.9.6.2 Terminals in LPC 1x230 V fan ................................................................................................... 60
4.9.6.3 Circuit diagram........................................................................................................................... 61
4.9.7 BF 50 LPC -3 3x400 V variable ON/OFF (435421/435424) ..................................................... 62
4.9.7.1 Cable plan.................................................................................................................................. 62
4.9.7.2 Terminals in LPC 3x400 V fan ................................................................................................... 62
4.9.7.3 Circuit diagram........................................................................................................................... 63
4.9.8 BF 50 LPC -3 3x400 V stepless (435422/435423) ................................................................... 64
4.9.8.1 Cable plan.................................................................................................................................. 64
4.9.8.2 Terminals in LPC 3x400 V fan ................................................................................................... 64
4.9.8.3 Circuit diagram........................................................................................................................... 65
4.9.9 BF 50 LPC -3 3x230 V variable ON/OFF (435412) .................................................................. 66
4.9.9.1 Cable plan.................................................................................................................................. 66
4.9.9.2 Terminals in LPC 3x230 V fan ................................................................................................... 66
4.9.9.3 Circuit diagram........................................................................................................................... 67
4.9.10 BF 50 LPC -3 3x230 V stepless (435411) ................................................................................ 68
4.9.10.1 Cable plan.................................................................................................................................. 68
4.9.10.2 Terminals in LPC 3x230 V fan ................................................................................................... 68
4.9.10.3 Circuit diagram........................................................................................................................... 69
5 Maintenance instructions ............................................................................................................................70
5.1 Cleaning.................................................................................................................................... 70
5.1.1 Fan............................................................................................................................................. 70
5.1.2 Motor controller/frequency converter ......................................................................................... 70
5.2 Recycling/Disposal .................................................................................................................. 70
6 Trouble shooting instructions.....................................................................................................................71
6.1 Resetting errors ....................................................................................................................... 73
7 Technical data...............................................................................................................................................74
7.1 BF 50 LPC -3 1x230 V ............................................................................................................. 74
7.1.1 ErP/Ecodesign BF 50 LPC -3 1x230 V ..................................................................................... 76
7.2 BF 50 LPC -3 3x400 V ............................................................................................................. 77
7.2.1 ErP/Ecodesign BF 50 LPC -3 3x400 V ..................................................................................... 79
7.3 BF 50 LPC -3 3x230 V ............................................................................................................. 80
7.3.1 ErP/Ecodesign BF 50 LPC -3 3x230 V ...................................................................................... 82
Technical User Guide

BF 50 LPC -3
Technical User Guide
7.4 Actuators .................................................................................................................................. 83
7.5 Metal and plastic parts ............................................................................................................ 84
7.6 Light traps ................................................................................................................................ 85
7.7 Number of wall fans in a container ........................................................................................ 86
7.8 Dimensioned sketch ................................................................................................................ 87
7.8.1 BF 50 LPC -3 ............................................................................................................................ 87
7.8.2 LPC motor controller .................................................................................................................. 88
7.8.3 Light trap .................................................................................................................................... 88
7.8.4 Outside safety net ...................................................................................................................... 89

BF 50 LPC -3
Technical User Guide 7
1 Product description
BF 50 is a direct driven corrosion-free wall fan.
BF 50 is available with air controlled and motor controlled shutters.
The fan is available in several different versions focusing on low power consumption, as well as standard ver-
sions.
BF 50 can be mounted using a cone for optimal air output and reduced power consumption.
BF 50 is specially designed for harsh livestock house environments. This applies to both climatic and electrical
influences.

BF 50 LPC -3
8 Technical User Guide
2 Product survey

BF 50 LPC -3
Technical User Guide 9
2.1 BF 50 wall fans
2.1.1 Type key
BF 50 ON/OFF EL HF 400V3 50Hz 1.5hp TH
Fan name
BFBlue fan
Fan size
Impeller diameter in inches” 50
Fan type
AC fan
LPC fan
ON/OFF
LPC
Shutter type
Motor controlled
Air controlled
ON/OFF
Stepless 0-100%
EL
AIR
ON/OFF
VAR
Fan characteristics
High flow
Low energy
HF
LE
Rated voltage
3x400 V AC
3x230 V AC
1x230 V AC
400V3
230V3
230V1
Supply frequency
50 Hz and 60 Hz
50 Hz
60 Hz
50/60Hz
50Hz
60Hz
Horsepower / motor performance
hp
1.5
Thermal cutout
TH
Thermal cutout
435444 BF 50 LPC -3 ON/OFF LE 230V1 50/60Hz
Fan control method - variable ON/OFF.
435443 BF 50 LPC -3 VAR LE 230V1 50/60Hz
Fan control method - stepless.
Safety net outside must be mounted to comply with CE marking, in coun-
tries where this is required.
LPC motor controller
PM motor 1,5 kW.
0,7 m motor cable.
Is supplied assembled.
ErP 2015 approved.
435444 and 435443 should not be used for negative pressure higher than
80 Pa.

BF 50 LPC -3
10 Technical User Guide
435421 BF 50 LPC -3 ON/OFF HF 400V3 50/60Hz
435424 BF 50 LPC -3 ON/OFF LE 400V3 50/60Hz
Fan control method - variable ON/OFF.
435422 BF 50 LPC -3 VAR HF 400V3 50/60H
435423 BF 50 LPC -3 VAR LE 400V3 50/60Hz
Fan control method - stepless.
Safety net outside must be mounted to comply with CE marking, in coun-
tries where this is required.
LPC motor controller
PM motor 1,5 kW.
0,7 m motor cable.
Is supplied assembled.
ErP 2015 approved.
435421 and 435422 should not be used for negative pressure higher than
100 Pa.
435424 and 435423 should not be used for negative pressure higher than
80 Pa.
435412 BF 50 LPC -3 ON/OFF LE 230V3 50/60Hz
Fan control method - variable ON/OFF.
435411 BF 50 LPC -3 VAR LE 230V3 50/60Hz
Fan control method - stepless.
Safety net outside must be mounted to comply with CE marking, in coun-
tries where this is required.
LPC motor controller
PM motor 1,5 kW.
0,7 m motor cable.
Is supplied assembled.
ErP 2015 approved.
435412 and 435411 should not be used for negative pressure higher than
80 Pa.

BF 50 LPC -3
Technical User Guide 11
2.2 Accessories
435397 BF 50 safety net outside wo/cone, A2
435398 BF 50 safety net outside wo/cone, galv
The outside safety net is used on BF 50 without cone where extra safety is
required.
Supplied with mounting parts.
One for each fan.
435395 BF 50 cone
The cone is used for ensuring better performance and energy efficiency.
Supplied with mounting parts.
1 per wall fan.
435396 BF 50 safety net outside for cone, A2
The outside safety net for cone is used where extra safety is required.
Supplied with mounting parts.
1 per wall fan.

BF 50 LPC -3
12 Technical User Guide
435998 BF 50 insulation plate
The insulation plate is used for mounting on a BF 50 wall fan where extra
insulation is necessary.
Used to avoid problems with condensation and cold air down draft, espe-
cially during the winter.
Insulation plates should always be used on all wall fans if dimensioned out-
side temperatures are below 0 °C.
Insulation plate cannot be immediately used, if the air controlled shutter is
mounted inside. If this solution is required, a frame for mounting insulation
plate must be established. Such a frame is not supplied by SKOV but must
be produced locally.
The insulation plate is mounted and removed with only one handle.
H x W x D: 1380 x 1380 x 29 mm.
Includes various mounting parts.
1 per wall fan.
435442 50" shading kit for wall fan
The shading kit is used for light reduction when using insulation plate or an-
other type of plate.
It reduces the light from outside.
The shading kit contains mounting parts for mounting on plate and wall fan.
At an angle of 60 degrees measured between the fan and plate, the air out-
put will be reduced by approx. 5%
The shading kit can be used on all sizes of wall fans, provided the plate is
square.
1 per wall fan.
435156 50" light trap brown out
Used if dimming is required in the livestock house.
Light reduction factor 175.000:1.
The light trap reduces the air output of the fan without cone by approx. 15
% at 0-70 Pa pressure difference.
The light trap reduces the air output of the fan with cone by approx. 18 % at
0-70 Pa pressure difference.
Supplied as an unassembled unit incl. brackets.
1 per wall fan.
435158 50" light trap black out
Used if a large amount of dimming is required in the livestock house.
Light reduction factor 1.300.000:1.
The light trap reduces the air output of the fan without cone by approx. 31
% at 0-70 Pa pressure difference.
The light trap reduces the air output of the fan with cone by approx. 35 % at
0-70 Pa pressure difference.
Supplied as an unassembled unit incl. brackets.
1 per wall fan

BF 50 LPC -3
Technical User Guide 13
3 Mounting guide
Check that the parts ordered are present and undamaged before starting work. Please read through the entire
guide before starting assembly and fitting.
If the BF 50 is installed in areas with risk of ice/snow slide, precautions must be made to
avoid damage to the BF 50.
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
Atomizer
Sealant gun
Hammer
Utility knife
Wedge
Marker pen
Torque wrench
Tape measure
Combination spanner kit
Screwdriver

BF 50 LPC -3
14 Technical User Guide
Item Description
Foam gun
Ladder
Jigsaw
Socket wrench set
Spirit level
Try square

BF 50 LPC -3
Technical User Guide 15
3.2 Placement of BF 50
BF 50 must be placed in the livestock house according to the drawing supplied. Contact SKOV A/S if major
changes are made.
Check that all BF 50 can be placed freely in relation to other housing equipment upon agreement with the client.
Place the insulation of the brickwork all the way in against the BF 50 and all the way round (as in other building
constructions). This way you prevent a cold bridge along the side of BF 50 from being formed.
3.3 Preparing hole in wall
3.3.1 Necessary space for BF 50 with LPC motor controller
(B)
(C)
(D)
(E)
(A)
There must be a minimum of (A) space inside the live-
stock house for the wall fan.
There must be a minimum of (B) space including the
wall thickness outside the livestock house for the wall
fan.
Wall thickness (C).
The recommended space in front of the cone is (D).
Recommended installation height from floor is mini-
mum (E) in order to ensure space for dung removal.
3.3.2 Necessary space for BF 50 without cone
(B)
(C) (E)
(A)
(D)
There must be a minimum of (A) space inside the live-
stock house for the wall fan.
There must be a minimum of (B) space including the
wall thickness outside the livestock house for the wall
fan.
Wall thickness (C).
The recommended space in front of the cone is (D).
Recommended installation height from floor is mini-
mum (E) in order to ensure space for dung removal.

BF 50 LPC -3
16 Technical User Guide
3.3.3 Measurements for square hole in wall
The dimensions below are given in mm .
Recommended measurements for individual mounting of BF 50 wall fan.
(A) Minimum distance is 550 mm, when mounting the LPC motor controller above BF 50.
(B) Minimum distance is 300 mm, when mounting the LPC motor controller between BF 50.
(A)
(B)
Minimum distance from BF 50 to wall, floor and ceiling

BF 50 LPC -3
Technical User Guide 17
3.3.4 Measurements for square hole in wall with cone
The dimensions below are given in mm.
Recommended measurements for individual mounting of BF 50 wall fan with mounted cone.
(A) Minimum distance is 550 mm, when mounting the LPC motor controller above BF 50.
(B) Minimum distance is 300 mm, when mounting the LPC motor controller between BF 50.
(B)
(A)
Minimum distance from BF 50 to wall, floor and ceiling

BF 50 LPC -3
18 Technical User Guide
3.4 Measure and saw out the holes
Remember to always use a spirit level.
Drill 10 mm holes all the way through the wall.
Cut the holes.

BF 50 LPC -3
Technical User Guide 19
3.5 Drainage holes
Yellow
Black
Please note that the yellow blanking plug must be at
the top.
If parts of BF 50 are outside the wall, on the outside, it
is recommended to drill 4 pcs. 5 mm drain holes in the
bottom on the four markings.

BF 50 LPC -3
20 Technical User Guide
3.6 Mounting in wall
190 mm
(A)
Lead the cables into the livestock house.
Make sure that there is free space for cables.
Measure from the top of BF 50 down (A) make a hole
in the wall for the cables as the bending radius of the
fan cables is 50 mm.
Use wedges to center BF 50 in the hole.
BF 50 must be level.