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AFCA Forums > Antique Fan Collectors Association > Pre-1950 (Antique) > Help ! Antique Ventor / Calor wiring questions

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 Posted: Wed May 16th, 2018 09:21 am
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Nicolas Deschamps
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Hi
I'm Nicolas , a french collector of all antique electric appliances and i own lots of fans so i bought recently a Ventor/Calor french antique fan from 1920.
It doesn't work at first test so i decided to dissassemble it in order to rewire it and to restore it .. I'm not accustomed to fan wiring and what i discovered let me puzzled .
I tried to take enough picture of the actual wiring which seem strange ..
I know that there's on this forum owner
of this rare model or similar ( the calor one) .
I need help to understand why there is a ceramic heater in the base ... ??? 
The speed selector seemed to be unusable because of the wiring  ?? 

If you have any idea of how the wiring  have to be for working and why this electric part like a heater are inside i'm interested by !!!
Thank you for your answer !!

Bests .
Nicolas








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 Posted: Wed May 16th, 2018 09:53 am
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Lane Shirey
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Hi Nicolas, It's hard to see, but it seems you have a D.C. Current fan. The "heater" is a nichrome resistance coil that is used to provide speed regulation. High speed is likely directly wired and the other speeds go through that coil to reduce the voltage for slow speeds. 



I'm not sure what that rectangular thing is on the bottom, though it's possible that it's a rectifier to convert the fan so it will run on AC. If it's an old selenium rectifier, it might no longer work and can be replaced by a modern bridge rectifier. That's IF it's a rectifier. 


I'm sorry, but I'm not able to help you with the actual wiring without looking at the fan. Hopefully someone else will provide assistance. 


I hope that helps just a little bit. 

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 Posted: Wed May 16th, 2018 10:03 am
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Nicolas Deschamps
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Hi Lane
Thank you for your answer ..
I thought that the " heater" could be use as a speed regulator ! why are the B & C point not wired ? only A is linked to this piece and no wire between AB or AC or BC ....maybe it has been changed by the time !! ..
I will take a look to rectifiers !
:)

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 Posted: Wed May 16th, 2018 10:11 am
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Lane Shirey
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I wish I could help more. Often the nichrome coils are bad, and it's possible they bypassed it so it would only run on high. 

The other possibility is that the device on the bottom is a resistor. Maybe the nichrome coil went bad and they found another resistor that gave them the speed they wanted and used it in place of the nichrome. Resistors get hot, and maybe that's why they mounted it to the bottom, so that it could get some air to cool it. The numbers you posted aren't consistent with a resistor though. I'm just guessing . 

Last edited on Wed May 16th, 2018 10:19 am by Lane Shirey

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