Help wiring sunbed

interlude · Aug 31, 2011

Hello all, I'll try and keep this brief. My neighbour owns a salon and has taken a sunbed home for personal use. They have informed me that it was supplied via a 32A commando but switched via a computer (which is still in the salon). I'm after some help as to how I can bypass the current method of operation and instead have it operate via a switched commando socket.

I have the following picture of wiring..

[ElectriciansForums.net] Help wiring sunbed

The brown that goes via a grey connection block to A1 (along with a neutral/earth) is from a flex that ran to the switching computer. The black live and neutral coming in from the top is the mains feed and i would like it to operate straight from there. Any ideas?

Thanks for your time, Darren.

vernam616 · Aug 31, 2011

Looks like a contactor to me, that flex will have more than likely activated the contactor to flick the bed on

Id mount a switch on the side of the bed to activate the contactor, as well as wiring in the 32a supply required as you say above

interlude · Sep 6, 2011

bump for any other input?

HandySparks · Sep 6, 2011

I don't know anything about sunbeds, but the timer relay (top terminals A1, 15, Y1) may well be to limit the time the sunbed is on, to prevent the user getting burned in case they fall asleep. If so, you would be unwise to bypass this.

Is the "neutral" of the flex to the switching computer really a neutral or is it a switched live? If so, where is it connected to? It may be easiest to connect a manual switch in place of the computer.

JamesBrownLive · Sep 6, 2011

Whatever you do, don't wire em up like these ones...

Final Destination 3 part 4 - YouTube

:74:

interlude · Sep 7, 2011

HandySparks said:
I don't know anything about sunbeds, but the timer relay (top terminals A1, 15, Y1) may well be to limit the time the sunbed is on, to prevent the user getting burned in case they fall asleep. If so, you would be unwise to bypass this.

Is the "neutral" of the flex to the switching computer really a neutral or is it a switched live? If so, where is it connected to? It may be easiest to connect a manual switch in place of the computer.

Sorry bypass was probably the wrong word for me to use, i don't want to remove the use of the contactor, i just want another means of bringing it on. The 'neutral' is definitely a neutral, i traced it back to the neutral block.

*someone from work has suggested the following..

Take a live off the main 32a feed and fuse down with an mcb. Out the mcb into a switch, then out the switch back to a1. Does that sound about right?

Cheers, Darren.

HandySparks · Sep 8, 2011

interlude said:
The 'neutral' is definitely a neutral, i traced it back to the neutral block.

Just to make sure, the flex I was referring to was this one:
"The brown that goes via a grey connection block to A1 (along with a neutral/earth) is from a flex that ran to the switching computer." (Not the 2 core flex disappearing off bottom right.) If it's really a neutral (not a switched line), is there any sign of how the output of the computer was connected to the sunbed?

interlude said:
*someone from work has suggested the following..

Take a live off the main 32a feed and fuse down with an mcb. Out the mcb into a switch, then out the switch back to a1. Does that sound about right?

Cheers, Darren.

Timer terminal A1 currently appears to be connected to the incoming supply "line", so probably isn't the input terminal. It would be useful to get hold of the data sheet for the timer relay so you know what each terminal does. Often available online.

Incidentally, the item that you describe as a "grey connection block" looks like a fuseholder to me.