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Sweetestgreen

Xpelair WAC1...no hum?

61 posts in this topic

I hated my WAC1, the build quality is really really bad, on my one the sliders didnt even line up properly with the casing so every time you touched it the plastic piece fell off :kwasny: and then it stopped working on any setting but the highest after about 3 weeks :kwasny:

Sent it back and got and SMS also pretty shit and made my fan buzz.

Sent it back and built myself a proper variac and couldnt be happier :)

:smokin:

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I hated my WAC1, the build quality is really really bad, on my one the sliders didnt even line up properly with the casing so every time you touched it the plastic piece fell off :kwasny: and then it stopped working on any setting but the highest after about 3 weeks :kwasny:

Sent it back and got and SMS also pretty shit and made my fan buzz.

Sent it back and built myself a proper variac and couldnt be happier :)

:smokin:

I think you probably just had a dodgy one which is just as annoying anyway. They seem to have ok feedback on here? I'm pretty handy and would have built one myself but I couldn't even find a variac, let alone the enclosure for the £26 inc postage I paid for the WAC1

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I hated my WAC1, the build quality is really really bad, on my one the sliders didnt even line up properly with the casing so every time you touched it the plastic piece fell off :kwasny: and then it stopped working on any setting but the highest after about 3 weeks :kwasny:

Sent it back and got and SMS also pretty shit and made my fan buzz.

Sent it back and built myself a proper variac and couldnt be happier :)

:smokin:

Mine had done the same thing , I have to use it with the front facia off otherwise the plastic part that joins the step control falls off and then there is no control at all . It's dangerous actually but its the only controller I have atm .

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anyone else had a bad time with this?

How is it dangerous mate

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anyone else had a bad time with this?

How is it dangerous mate

Hi , I would have thought its dangerous as the internal steppings are exposed and if touched would give an electric shock ? Although its never happened to me if i need to change the speed i turn the power off first .

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I reckon McDonald's happy meal toys have better build quality than the WAC 1 lol

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I reckon McDonald's happy meal toys have better build quality than the WAC 1 lol

I'm hoping the one I have on order isn't a dud! Likely I'd have ordered one anyway even with these reports of crap build quality as even if I've got to mess around and fix the case or modify it, Id've bought one anyway as I couldn't find anywhere I could buy the components to make one for less than the WAC1. Mine should be delivered today.

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here is the inside for the wires, i have a ruk fan any help with the wiring would be great

Cheers guys and gals :)

gallery_84578_8251_5228.jpg

Edited by judgey

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LF = fan live

NF = fan Neutral

L = live from plug

N = neutral from plug

vb

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thanks mate, its got a sticker with big letters saying it needs to be earthed is that done via the mains plug or do i have to wire it

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You should wire it mate. Theres an earthing block in one of the corners of the wac1 housing .

Wire the live and neutrals how i said earlier .

Then wire the earth from the plug into the earth block and the earth from your fan to the earth block.

vb

E2a ; Cant remember if my fan has an earth connection when i wired mine . Make sure you wire it nice and neatly also allow enough play in the wires ( live/neutral) because its a bit awkward where the terminals are positioned . IMO

Edited by VibratingBallast
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nice all done and working first time ;)

can not tell about the noise untill its late will update

thanks again

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nice all done and working first time ;)

can not tell about the noise untill its late will update

thanks again

Yeh nice one mate ! :yahoo:

What setting you going to run it at?

vb

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on highest right now, i live on a busy road so can not hear the fan for traffic, about 11 i should hear the fan and ill change the settings :)

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These are industrial duct fans, wac1 controllers are designed more for ceiling fans and axial fans.... your fan isn't going to catch fire on setting 1 or anything... It will run hotter than it should, current isn't proportional to voltage or fan speed in induction motors, the only reason you can even control these types of fans with voltage instead of frequency control is due to the fans having external rotors to allow the air movement to cool them, normal motors require frequency modulation control... If you look at the data sheets for say, an Rvk, the flow/voltage curve (with no filter attached) goes to virtually 0 at 105v... 33% is about 80v so basically no airflow, the motor still won't burn out but the life will be drastically reduced, if you slow a fan so far the rotor stops turning but still a voltage applied (say 40v) you only have the resistance of the windings to determine current, say 20 ohms, your fan will start pulling 2A, when it's rating is less than 1.... These fans usually ( not always) have built in thermal protection so the fan will just cutout until it cools down... but this again is seriously effecting your fans life, and should never happen anyway, because if your running your fan that slow (even at 33%) you may as well not have a fan, just get a smaller fan if you have to slow it down that much!!

Edited by scraglor
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