Skov BF 50 User Manual

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BF 50 Wall Fans

Technical User Guide

604383 • 2021-11-26

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

Table of Contents

Questions and Answers:

A
angela91Aug 16, 2025
What to do if Skov BF 50 stopped after multiple restart attempts?
- T
  Tracy SantiagoAug 16, 2025
  If the Skov Fan stops after 5 restart attempts due to the same error within 60 minutes, it could be due to several reasons. The supply voltage might be too high, so measure it. The motor's power consumption could be excessive, so check for motor errors. There might be phase errors, indicating interrupted phases (L1, L2, L3), so measure the voltage between the phases. A blocked impeller could be the cause, so remove any blockage. The rotation direction might be incorrect, so invert it. There could be a phase error on the motor supply (U, V, W), so measure the voltage going to the motor. Finally, an internal communication error could exist, requiring you to replace the LPC motor controller.
S
sharon09Aug 22, 2025
Why Skov Fan has reduced performance?
- S
  Sean KingAug 22, 2025
  If the Skov Fan demonstrates reduced performance, start by measuring the supply voltage, as it may be too low. Also, the internal temperature of the LPC motor controller might be too high (above 95°C). Check the assembly of the LPC motor controller. If the motor current has reached its limit, and the negative pressure in the livestock house is too high, inspect the air inlets. An error in the internal circuit of the LPC could also be the cause, requiring you to replace the LPC motor controller. Finally, measure the supply phases, as the ripple voltage might be too high.
R
rachelwilliamsAug 26, 2025
How to troubleshoot Skov BF 50 Fan motor that is not running?
- M
  Mikayla ClineAug 26, 2025
  If the Skov Fan motor is not running, and it's an AC motor, the motor protection might have switched off. Check the size of the protective motor switch. Replace the motor protection, changing to the correct size if needed. Also, check if the fan motor is blocked and remove any obstruction. Too high negative pressure in the livestock house could be the issue, so check the air inlets. Another possible cause is the control voltage to the motor contactor, so check the signal to the contactor.
M
mrayAug 28, 2025
What to do if Skov Fan inlet flap is not operating?
- D
  daniel08Aug 28, 2025
  If the Skov Fan inlet flap is not operating, check the 24 V DC supply voltage and the assembly according to the connection and circuit diagram. If the actuator is not running, replace it.
S
Sheryl ScottAug 31, 2025
What to do if Skov BF 50 motor keeps running?
- K
  kellyrebekahAug 31, 2025
  If the Skov Fan motor is running and does not turn off (AC motor), check the 24 V DC supply voltage to the winch motor (Terminal H1).
C
Colin CalhounSep 3, 2025
Why Skov BF 50 Fan makes abnormal noise?
- A
  Arthur MorrisonSep 3, 2025
  If you notice abnormal noise coming from the Skov Fan, it could be due to a few reasons. Check the mounting of the fan according to the provided document and retighten if required. The noise could also be bearing noise, in which case you should replace the motor. If the fan is vibrating, check whether the fan blades are defective, correctly assembled, or dirty. Replace or clean them as necessary.
T
Todd MillerSep 6, 2025
What to do if Skov Fan inlet flap won't close?
- N
  nathanbriggsSep 6, 2025
  If the Skov Fan inlet flap will not close or open, it might be obstructed by the ventilation duct, so remedy the damage. The linkage between the flap and actuator could be faulty, so replace any defective parts.
P
Peter Gonzalez Jr.Sep 9, 2025
What to do if the Skov BF 50 inlet flap is not operating?
- J
  joneskellieSep 9, 2025
  If the Skov Fan inlet flap isn't working, first verify the 24 V DC supply voltage and check the assembly against the connection and circuit diagram. If the actuator is still not running, consider replacing it.
D
Dr. Laurie UnderwoodSep 10, 2025
Why Skov Fan motor is not running?
- J
  Jonathan ShawSep 12, 2025
  If the Skov Fan motor is not running, it could be due to several reasons. First, check the signal from the controller, as it might be sending a stop signal (10V = stop terminal 5). Next, verify the signal from the winch motor, as the start/stop signal might be indicating a stop (24 V = stop terminal 8). Also, check the power supply to ensure it is providing power. Lastly, a defective LPC motor controller could be the issue, requiring replacement.
C
chris94Sep 12, 2025
Why won't my Skov BF 50 Fan inlet flap close or open?
- M
  Michael GraySep 12, 2025
  If the Skov Fan inlet flap won't close or open, it might be obstructed by the ventilation duct. In this case, remedy the damage. Another cause may be a faulty linkage between the flap and actuator, which would require replacing the defective parts.

Skov BF 50 Specifications

General

Brand	Skov
Model	BF 50
Category	Fan
Language	English

Summary

Product and Documentation Changes

Product Description

Product Survey

BF 50 Wall Fans Overview

Details about BF 50 wall fans, including type key.

Accessories

Lists and describes various accessories for BF 50 fans.

Mounting Guide

Recommended Tools

Lists the recommended tools for mounting the BF 50 fan.

Wall Preparation and Hole Cutting

Guidelines for preparing the wall opening for fan installation.

Fan Mounting Procedures

Detailed steps for physically mounting the fan into the wall.

Shutter and Accessory Mounting

Steps for mounting shutters and other accessories.

Installation Guide

Electrical Connection and Safety

Guidelines and requirements for connecting the fan electrically and safety compliance.

LPC Motor Controller Setup

Cabling, placement, and connection details for the LPC motor controller.

Wiring Diagrams and Schematics

General information and legend for cable plans and circuit diagrams.

Fan Model Wiring Configurations

Wiring details for various BF 50 fan models, e.g., LPC, EL, AIR.

Maintenance and Troubleshooting

Maintenance Instructions

Procedures for cleaning and maintaining the fan and motor controller.

Troubleshooting Guide

Diagnosing and resolving common fan and controller issues.

Technical Data and Specifications

BF 50 LPC Fan Specifications

Technical specifications for BF 50 LPC fan models, including air output.

BF 50 ON/OFF Fan Specifications

Technical specifications for BF 50 ON/OFF fan models, including air output.

Actuator Specifications

Technical specifications for various actuator types used with the fans.

Dimensioned Sketches

BF 50 Fan Dimensions

Visual representations of BF 50 fan dimensions and mounting clearances.

LPC Motor Controller Dimensions

Dimensional drawings of the LPC motor controller.

Accessory Dimensions

Dimensions for light traps and safety nets.

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