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Operation 

 

Single Channel Transmitters 

 
Single channel transmitters only allow simultaneous control of all 

channels in a room.   

 
 

Installation 

 

Before assembly ensure that the rear cover is firmly fixed and that the 

aerial is positioned in a way as to not foul other components. 

 

Warning 

 

Rako wall-switches are designed to operate at safety extra low voltages 
(6V).  When fixing the wall-plates to existing back-boxes there may be 

mains wiring present, if this is the case then the wiring should be made 
safe, properly insulated and any metal back-boxes earthed.  Earthing of 

the back box is essential if a decorative metal front plate is being used. 
Should there be any doubt in how to do this contact a qualified 

electrician. 

Rako Ltd accepts no responsibility for any damage or injury caused by 
incorrect installation of a Rako product. 

 

Surface fixing to UK back box. 

 

Orientate the patress so that the bossed inserts are aligned vertically and 
locate the PCB retainer in the patress.  Then using

 the 25mm fixing 

screws fix the front plate to the retainer and patress and back-box.   

 

Flush fixing to a UK back-box 

 

Fit the PCB retainer in the back-box so that the clear flange is flush to 

the wall.  Then using the 12mm fixing screws (or 25mm if needed) secure 
the front plate to the PCB retainer and back-box. 

Note.  Transmission range is greatly enhanced if the aerial can be 

positioned outside of the back-box.  This is because the front plate and 

back-box will form a ‘Faraday cage’, which will give very poor radio 

transmitting conditions.  To position the aerial correctly a hole must be 
cut in the back-box and a small diameter hole drilled into the wall.  

Straighten the aerial and push the aerial into the hole.  The best radio 
transmission will be achieved when all of the aerial fully extended and 

outside of the back-box.  If, because of physical constraints, it is not 
possible to drill the hole in a position close to where the aerial emerges 

from the PCB retainer, then the rear cover can be removed and the aerial 

re-positioned in a more convenient aerial cut-out (see fig 2). 

Surface fixing with no back-box 

 

Take the universal backing plate and screw this to the wall (screws not 
included) using the fixing slots.  Rotate the patress so that the bossed 

inserts are aligned horizontally and then, using the 2 x self-tapping 

screws, fix the patress to the universal backing plate taking sure not to 

over-tighten the screws.  Insert the PCB retainer into the patress and 
then using the 2 x 6mm fixing screws, secure the front plate to the 

patress fixing the screws through the PCB retainer and into the bossed 

inserts. 

Surface fixing to European back-boxes. 

 

For fixing to European DIN or French standard back-boxes the Rako 
universal backing plate has been designed so that two of the fixing slots 

match European DIN standard back-box fixings and two match standard 
French back-box fixings.  To mount the assembly, orientate and mount 

the universal backing plate as applicable (screws not provided) and then 

follow the instructions for ‘Surface fixing with no back-box’.

 

Care and maintenance 

 

Battery replacement 

 

The Rako series of wall-switches are designed to be powered by batteries.  
The designed battery life is better than 3 years (based on 30 button 

presses daily) but the batteries will eventually need replacing.  In normal 

use the LED on the front panel illuminates momentarily when a button is 

pressed to indicate that a (radio) transmission has been made.  When the 

batteries are approaching the end of their useful life the LED will 
continue to blink after a button has been pressed.  When this starts to 

happen the batteries should be replaced as soon as possible.  
 

Always use two CR2016 type batteries. 

 

To replace the batteries unscrew the front plate and remove the PCB 

retainer, taking care not to damage the aerial (note that when flush 

mounted the aerial may be located in a hole outside the back-box).  

Remove the rear cover and carefully slide out the batteries.  Replace with 
new batteries ensuring that the positive (+) terminal makes contact with 

the battery clip and the negative (-) terminal with the pad on the circuit 
board.   

To ensure reliable operation always ensure that battery contacts and 

battery surfaces are kept clean of any grease, moisture or other 
contamination. 

 
 

 
 

 

Warning 

 

Lithium batteries may explode if handled incorrectly.  Always dispose of 

used batteries in accordance with manufacturer’s recommendations. 

 

NOTE 

 

Early Versions of the RACUB are set up for Scene Setting Latching mode 

and may need to be reprogrammed using RASOFT to pulsing mode.  
 

 
 

Rako thanks you for having purchased a Rako product and hopes that 
you are pleased with your system.  Should for any reason you need to 

contact us please contact us via our website 

www.rakocontrols.com

 or by 

phoning our customer help line on 01634 226666 

 

 
 

 

 

 
 

 

 
 

 
 

 

 

 
 

 

 
 

 
 

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