BF 50 Wall Fans
Technical User Guide
1 Product description........................................................................................................................................8
2 Product survey ...............................................................................................................................................9
2.1 BF 50 wall fans ........................................................................................................................ 10
2.1.1 Type key .................................................................................................................................... 10
2.2 Accessories.............................................................................................................................. 13
3 Mounting guide.............................................................................................................................................16
3.1 Recommended tools................................................................................................................ 16
3.2 Placement of BF 50 ................................................................................................................. 18
3.3 Preparing hole in wall.............................................................................................................. 18
3.3.1 Necessary space for BF 50 without LPC motor controller ......................................................... 18
3.3.2 Necessary space for BF 50 with LPC motor controller .............................................................. 18
3.3.3 Necessary space for BF 50 without cone .................................................................................. 19
3.3.4 Necessary space for BF 50 wth air shutter ................................................................................ 19
3.3.5 Measurements for square hole in wall ....................................................................................... 20
3.3.6 Measurements for square hole in wall with cone ....................................................................... 21
3.4 Measure and saw out the holes.............................................................................................. 22
3.5 Drainage holes ......................................................................................................................... 23
3.6 Mounting in wall....................................................................................................................... 24
3.6.1 Mounting with four brackets ....................................................................................................... 25
3.6.2 Mounting of four angle bars ....................................................................................................... 26
3.6.3 Mounting in wooden frame......................................................................................................... 27
3.6.4 Foaming ..................................................................................................................................... 28
3.6.5 Pointing ...................................................................................................................................... 31
3.7 Removing the transport bracket............................................................................................. 32
3.8 Mounting of inside safety net ................................................................................................. 33
3.9 Mounting of air controlled shutter .........................................................................................34
3.9.1 Outside air controlled shutter ..................................................................................................... 35
3.9.2 Inside air controlled shutter........................................................................................................ 36
3.10 Manual opening of motor controlled shutter ........................................................................37
3.11 Mounting of accessories......................................................................................................... 40
3.11.1 Cone .......................................................................................................................................... 40
3.11.2 Outside safety net ...................................................................................................................... 41
3.11.2.1 Without cone .............................................................................................................................. 41
3.11.2.2 With cone ................................................................................................................................... 42
3.11.3 Insulation plate........................................................................................................................... 43
3.11.4 Shading kit ................................................................................................................................. 44
3.11.5 Light trap .................................................................................................................................... 46
4 Installation guide ..........................................................................................................................................47
4.1 Electrical connection............................................................................................................... 47
4.1.1 Disclaimer at retrofitting fans ..................................................................................................... 47
4.1.2 cUL............................................................................................................................................. 47
4.1.3 Mains supply dimensioning regarding harmonic distortion ........................................................ 47
4.1.4 Cabling to connection box and LPC motor controller................................................................. 48
4.1.5 Cabeling and placement of LPC motor controller ...................................................................... 48
4.1.6 Connection in the motor controller ............................................................................................. 49
4.1.6.1 Terminals for power supply........................................................................................................ 49
4.1.6.2 Terminals for power supply of fan.............................................................................................. 50
4.1.6.3 Signal terminals ......................................................................................................................... 50
4.1.6.4 Terminals on relay module......................................................................................................... 50
4.1.7 LED indication on the motor controller....................................................................................... 51
4.1.8 Alarms........................................................................................................................................ 51
4.1.9 Emergency opening for BF 50 actuator – house controller........................................................ 52
4.1.9.1 Fan active at power failure......................................................................................................... 52
4.1.9.2 Fan not active at power failure................................................................................................... 53