Author Topic: Range (Kitchen) hood automation z-wave?  (Read 956 times)

Offline hellovn

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Range (Kitchen) hood automation z-wave?
« on: January 22, 2017, 01:53:41 pm »
Hi All,

I am planning to automate my kitchen hood with two fan modes (low/high). The hood wiring is attached. The 3-terminals are for the fan (high/low/off) and the two terminals are for the lights.

I searched a lot in google, vera and smarthings but there is no specific example. Could I just use an in-wall smart switch like aeon or fibaro?

Thanks,


Offline JohnRob

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Re: Range (Kitchen) hood automation z-wave?
« Reply #1 on: January 22, 2017, 04:23:38 pm »
Not sure about the specific controller(s) that could be used but I think you will need two channels because you have three states.

Can you tell if there will be a fault current of both the Hi and Low are enabled at the same time.  If so you should use a hi/low relay controlled by a Z Wave module of some sort.  As I think it unwise to allow a fault state to occur is a control module does not react to a command.




Offline hellovn

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Re: Range (Kitchen) hood automation z-wave?
« Reply #2 on: January 22, 2017, 06:54:11 pm »
Can you tell if there will be a fault current of both the Hi and Low are enabled at the same time.

I am not sure how to test this.

Offline JohnRob

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Re: Range (Kitchen) hood automation z-wave?
« Reply #3 on: January 24, 2017, 01:17:28 pm »
Looking at your switch photo, I would assume the following:
  • In the photo the fan switch is on the left and is likely a rocker switch.  (Hi / Off / Lo)
  • On the fan switch it looks to me that power comes into the center terminal.
  • That would mean only one of the two outer connections can be connected at one time.  Else you will short out part of the motor (not good)
I've attached a suggested wiring.  Note Control 2 wiring.  With a mechanical relay it will be impossible for the  Hi and Lo connections to be made at the same time, so there is no worry about creating a fault condition if Vera misses a command.


Good Luck

Offline hellovn

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Re: Range (Kitchen) hood automation z-wave?
« Reply #4 on: January 06, 2018, 08:57:44 pm »
Sorry for a year late reply. I just bought an enerwave double switch and a sptd relay. My current wiring is as below.  When I toggle the z-wave switch, it seems it does not do anything. My range hood is still working with the manual buttons. I have two things that I am not sure:

1. should the 120V and Common be connected to the load or aux terminals of the z-wave switch?

2. Should I connect the common output of spdt to the off position of the range hood?

Thanks.