Skov BF 50 LPC -3 wall fans Technical User Guide

Brand: Skov

Model: BF 50 LPC -3 wall fans

Type: Technical User Guide

BF 50 LPC -3

Wall Fans

Technical User Guide

604490 • 2023-08-04

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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............................................................................................................................................. 14

3.1 Recommended tools................................................................................................................ 14

3.2 Placement of BF 50 ................................................................................................................. 16

3.3 Preparing hole in wall.............................................................................................................. 16

3.3.1 Necessary space for BF 50 with LPC motor controller .............................................................. 16

3.3.2 Necessary space for BF 50 without cone .................................................................................. 16

3.3.3 Measurements for square hole in wall ....................................................................................... 17

3.3.4 Measurements for square hole in wall with cone ....................................................................... 18

3.4 Measure and saw out the holes.............................................................................................. 19

3.5 Drainage holes ......................................................................................................................... 20

3.6 Mounting in wall....................................................................................................................... 21

3.6.1 Mounting with four brackets ....................................................................................................... 22

3.6.2 Mounting of four angle bars ....................................................................................................... 23

3.6.3 Mounting in wooden frame......................................................................................................... 24

3.6.4 Foaming ..................................................................................................................................... 25

3.6.5 Pointing ...................................................................................................................................... 28

3.7 Removing the transport bracket............................................................................................. 29

3.8 Mounting of inside safety net ................................................................................................. 30

3.9 Manual opening of motor controlled shutter ........................................................................ 31

3.10 Mounting of accessories......................................................................................................... 34

3.10.1 Cone .......................................................................................................................................... 34

3.10.2 Outside safety net ...................................................................................................................... 35

3.10.2.1 Without cone .............................................................................................................................. 35

3.10.2.2 With cone ................................................................................................................................... 36

3.10.3 Insulation plate........................................................................................................................... 37

3.10.4 Shading kit ................................................................................................................................. 38

3.10.5 Light trap .................................................................................................................................... 40

4 Installation guide.......................................................................................................................................... 41

4.1 Electrical connection............................................................................................................... 41

4.1.1 Disclaimer at retrofitting fans ..................................................................................................... 41

4.1.2 Mains supply dimensioning regarding harmonic distortion ........................................................ 41

4.1.3 Overvoltage protection............................................................................................................... 41

4.1.4 Position of motor controller/frequency converter ....................................................................... 42

4.1.5 Mounting distances for the motor controller/frequency converter .............................................. 42

4.1.6 Cabling into the motor controller/frequency converter ............................................................... 42

4.1.7 Cabling to connection box and LPC motor controller................................................................. 43

4.2 Connection in the LPC motor controller/frequency converter ............................................ 44

4.2.1 Terminals for one-phase supply................................................................................................. 45

4.2.2 Terminals for three-phase supply .............................................................................................. 45

4.2.3 Terminals for supply of the fan motor ........................................................................................ 45

4.2.4 Signal terminals ......................................................................................................................... 46

4.3 LED indication on display ....................................................................................................... 47

4.4 Operation .................................................................................................................................. 47

4.4.1 Change 10-0 V analog input into 0-10 V.................................................................................... 49

4.5 Emergency opening for BF 50 actuator – house controller................................................. 51

4.5.1 Fan active at power failure......................................................................................................... 51

4.5.2 Fan not active at power failure................................................................................................... 52

4.6 Connection to actuator............................................................................................................ 53

BF 50 LPC -3

4.6.1 BF 50 LPC actuator time-controlled........................................................................................... 53

4.6.2 BF 50 LPC actuator stepless ..................................................................................................... 53

4.7 Connection of extra 24 V power supply................................................................................. 54

4.8 General information about circuit diagrams ......................................................................... 55

4.8.1 Color code.................................................................................................................................. 55

4.8.2 Power supply isolator................................................................................................................. 55

4.8.3 Letter code ................................................................................................................................. 55

4.9 Cable plans and circuit diagrams........................................................................................... 56

4.9.1 Circuit diagram for OFF/AUTO/ON switch ................................................................................. 56

4.9.1.1 BF 50 LPC -3 ............................................................................................................................ 56

4.9.2 Circuit diagram for emergency opening ..................................................................................... 56

4.9.2.1 BF 50 LPC -3 ............................................................................................................................ 56

4.9.3 BF 50 LPC -3 with reverse (1x230 V) ....................................................................................... 57

4.9.3.1 Cable plan.................................................................................................................................. 57

4.9.3.2 Circuit diagram........................................................................................................................... 57

4.9.4 BF 50 LPC -3 with alarm relay (1x230 V) .................................................................................. 58

4.9.4.1 Cable plan.................................................................................................................................. 58

4.9.4.2 Circuit diagram........................................................................................................................... 58

4.9.5 BF 50 LPC -3 BF 50 LPC -3 1x230 V variable ON/OFF (435444) ............................................ 59

4.9.5.1 Cable plan.................................................................................................................................. 59

4.9.5.2 Terminals in LPC 1x230 V fan ................................................................................................... 59

4.9.5.3 Circuit diagram........................................................................................................................... 60

4.9.6 BF 50 LPC -3 1x230 V stepless (435443) ................................................................................ 61

4.9.6.1 Cable plan.................................................................................................................................. 61

4.9.6.2 Terminals in LPC 1x230 V fan ................................................................................................... 61

4.9.6.3 Circuit diagram........................................................................................................................... 62

4.9.7 BF 50 LPC -3 3x400 V variable ON/OFF (435421/435424) ..................................................... 63

4.9.7.1 Cable plan.................................................................................................................................. 63

4.9.7.2 Terminals in LPC 3x400 V fan ................................................................................................... 63

4.9.7.3 Circuit diagram........................................................................................................................... 64

4.9.8 BF 50 LPC -3 3x400 V stepless (435422/435423) ................................................................... 65

4.9.8.1 Cable plan.................................................................................................................................. 65

4.9.8.2 Terminals in LPC 3x400 V fan ................................................................................................... 65

4.9.8.3 Circuit diagram........................................................................................................................... 66

4.9.9 BF 50 LPC -3 3x230 V variable ON/OFF (435412) .................................................................. 67

4.9.9.1 Cable plan.................................................................................................................................. 67

4.9.9.2 Terminals in LPC 3x230 V fan ................................................................................................... 67

4.9.9.3 Circuit diagram........................................................................................................................... 68

4.9.10 BF 50 LPC -3 3x230 V stepless (435411) ................................................................................ 69

4.9.10.1 Cable plan.................................................................................................................................. 69

4.9.10.2 Terminals in LPC 3x230 V fan ................................................................................................... 69

4.9.10.3 Circuit diagram........................................................................................................................... 70

5 Maintenance instructions ............................................................................................................................ 71

5.1 Cleaning.................................................................................................................................... 71

5.1.1 Fan............................................................................................................................................. 71

5.1.2 Motor controller/frequency converter ......................................................................................... 71

5.2 Recycling/Disposal .................................................................................................................. 71

6 Trouble shooting instructions .................................................................................................................... 72

6.1 Resetting errors ....................................................................................................................... 74

7 Technical data .............................................................................................................................................. 75

7.1 BF 50 LPC -3 1x230 V ............................................................................................................. 75

7.1.1 ErP/Ecodesign BF 50 LPC -3 1x230 V ..................................................................................... 77

7.2 BF 50 LPC -3 3x400 V ............................................................................................................. 78

7.2.1 ErP/Ecodesign BF 50 LPC -3 3x400 V ..................................................................................... 80

7.3 BF 50 LPC -3 3x230 V ............................................................................................................. 81

7.3.1 ErP/Ecodesign BF 50 LPC -3 3x230 V ...................................................................................... 83

Technical User Guide

BF 50 LPC -3

Technical User Guide

7.4 Actuators .................................................................................................................................. 84

7.5 Metal and plastic parts ............................................................................................................ 85

7.6 Light traps ................................................................................................................................ 86

7.7 Number of wall fans in a container ........................................................................................ 87

7.8 Dimensioned sketch ................................................................................................................ 88

7.8.1 BF 50 LPC -3 ............................................................................................................................ 88

7.8.2 LPC motor controller .................................................................................................................. 89

7.8.3 Light trap .................................................................................................................................... 89

7.8.4 Outside safety net ...................................................................................................................... 90

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%

AIR

ON/OFF

VAR

Fan characteristics

High flow

Low energy

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

1.5

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.

435517 BF 50 cover for cone

Use for BF 50 ON/OFF to prevent ice, snow etc. from settling in the cone,

which can damage the shutter system.

The cover is blown off automatically at start-up and must be fitted manually

again.

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.

BF 50 LPC -3

Technical User Guide 13

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

435490 BF 50/BF 55/DA 1700 PM motor cable 4-core 4 m

Is used for LPC fans in cases where 0.7 m motor cable from the fan box is

insufficient.

After replacing the existing motor cable for BF 50/BF 55/DA 1700 PM motor

cable 4-core 4 m, the motor cable out of the fan box will be 2.7 m.

BF 50 LPC -3

14 Technical User Guide

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 load of snow or 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

Technical User Guide 15

Item Description

Foam gun

Ladder

Jigsaw

Socket wrench set

Spirit level

Try square

BF 50 LPC -3

16 Technical User Guide

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)

(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

Technical User Guide 17

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

18 Technical User Guide

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

Technical User Guide 19

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

20 Technical User Guide

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.

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Skov BF 50 LPC -3 wall fans Technical User Guide

Skov BF 50 LPC -3 wall fans Technical User Guide

Skov BF 50 LPC -3 wall fans Technical User Guide

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