Hello,
I'm looking to control the speed of a fan in 230V.
Do you know which device is compatible with Hubitat and this voltage?
Thank you
What kind of fan? And are you in North America or outside?
If you're in North America, and this is a whole house fan, the ones I've seen use different sets of windings for different speeds, so it is possible to use a set of Hubitat-controlled switch to control the coil of heavy-duty 240V relays that are wired to control the fan itself.
Hello,
I'm in Europe.
I want to control the speed of a cheminair 600 from vendor solerpalau
The max power is 100W
I would use one of these behind the switch. That way you don't have to worry about trying to find something with that kind of power and simply use the power from the existing switch
Are you speaking about Shelly Plus 1 UL ?
The link is not working for me and neither with vpn set to los angeles.
If yes, I didn't saw the functionality to control the speed (dimm) for this shelly.
Since the speed of Cheminair 600 is continuously variable, you need a fan controller that supports variable speeds. I don't know of any zigbee or z-wave fan controller that does that. The Shelly is rated to turn the fan on and off, but won't control its speed.
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Yes, to turn on and off, if I'm not wrong, any switch will do the job.
But to control the speed, in hubitat docs, I found only devices working with 110V.
I'm surprised there are no Zigbee/ Z-wave 220v fan controllers out there. I looked at the product bulletin for the fan, and lower on the page, they are also selling what looks like a voltage chopper-type speed control. If you have the space available, you could try a 120v z-wave fan controller with a 120 to 220 step-up transformer before the fan. This would need to be a utility or furnace room setup.
I would first try a regular wall dimmer. I'll guess every Hubitat user has a hand full of them lying around 
The Fan specification cites 100Watt power requirement. Should be easy for a incandescent dimmer.
If that works OK then you can find something "Smart". You also might find a "fan" capable dimmer or an "ELV" dimmer a better choice.
I want to use it for two cases:
1: when the furnace is heating, the thermostat turn on the fan to send hot air in the rooms. By security against overheating, I will not connect any smart controllers on this part.
2: when the furnace is off, I want to control on/off + speed to refresh the house or just bring new air with a smart speed controller.
Now, I can do that working connecting a smart switch (case 2) to the low temperature side on the temp controller.
There's a plenty of tuya fan speed controllers but I can't figure out if they are working with Hubitat.
As the max current is 0.45A and the fan is expensive, I want to be sure the device that I can use to not burn the fan. The original controller is the reb-1n but is not smart.
I see everywhere on internet that it's not recommended to use a smart dimmer for that case but I don't understand why and I can't believe that it doesn't exist any fan speed controller compatible with Hubitat in 230V.
Thank you for your help
Fan controllers are designed to handle Inductive Motor Loads, whereas as lighting dimmers are definitely not. Using a lighting dimmer to try to control a motor load may result in an electrical fire, and thus is a terrible idea.
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In Inductive loads the current lags the voltage both turning on and turning off. A "standard" dimmer is not expecting this lag and can fail to turn on and/of not turn off at the correct time.
Conservative approach: (only two speeds, full and a manually set slow speed)
- Purchase a recommended REB dimmer.
- Set it to an acceptable slow speed.
- Switch it in an out with a Smart device with a relay output.
OR
Contact the mfg, tell them you want a smart dimmer and ask them what type of dimmer the REB is. i.e. ELV etc. Then try to find a smart dimmer of that type.
Note: The REB info states there is a preset minimum speed so if you do find a dimmer you need to insure it doesn't go below the required minimum speed.
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Thanks @JohnRob I'll try your conservative approach. I find the REB very expensive for the job that is supposed to do. But it's still a good solution.
I hope that works for you. When I looked at the REB I felt I knew how it worked but with no way to verify and the possibility there could be some unique properties I think its not worth the risk.
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