2-pole voltage detector = much better instrument.
.... to the op .... I know Vent Axia have a few extractors that run permanently ("trickle") and whose overrun timers control a variable speed boost. Not one of those is it ? Just checkin' .....
Not a timer model, nor it appears to have a trickle mode but seems to have a two speed arrangement set at the installation.Thanks again, it's a Vent Axia vasf 100b, much quieter than old unit. Maybe some distorsion, so I'll check that too.
Given that it's apparently not a timer model, it should run with a neutral and switched live when the switched live is live (i.e. switched on!) - that's how non-timer fans work.Scratch that, it doesn't run without the permanent live, will see if I can swop for a timed version.
Have I missed something? I though we'd decided that it was a non-timer model, in which case it surely would not have/need a permanent live? What have I missed?You need to connect the switched live conductor to BOTH L and SL terminals. It's quite logical.
You need to connect the switched live conductor to BOTH L and SL terminals.
It's quite logical.
It needs power to the L to 'go' and power to the SL to switch it on.
You will just be doing both at the same time.
Oh sorry, when it was said it wouldn't work with just the switched live, I reverted to timer mode.Have I missed something? I though we'd decided that it was a non-timer model, in which case it surely would not have/need a permanent live? What have I missed?You need to connect the switched live conductor to BOTH L and SL terminals. It's quite logical.
Kind Regards, John
I'm actually rather confused, and can understand your having 'reverted to timer mode', since the OP is still talking about 'live and switched live connections', even though he's also talking about trying to swap it for a timer model.Oh sorry, when it was said it wouldn't work with just the switched live, I reverted to timer mode.Have I missed something? I though we'd decided that it was a non-timer model, in which case it surely would not have/need a permanent live? What have I missed?
Yes, that was my understanding from the posts above - which, as I said, is why I was confused that the OP was still talking about 'live' and 'switched live' connections. However, having looked at the instructions, I think I now understand teh confusion...He has a vasf 100b. This is a NON TIMER fan.
As you will be aware, it's a bit more complicated than that - assuming that the 100b and 100t have essentially the same layout, there are actually seven terminals in total. The main connector block has four terminals - N, L, S/L (not used, but I presume present, on non-timer model) and 'MN' (which I suspect is 'motor neutral'). There is then a separate block with three terminals ('1', '2' & '3') to which one connects the trailing 'motor L' wire (and adds a link for low speed, with the non-timer model) to determine speed.This fan has three terminals ... A neutral and one terminal for low and another for high speed operation.
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