Insteon & Induction Cooktop

OTA

New Member
Does anyone else here have an induction cooktop in their kitchen and use Insteon? I just installed a bunch of Switchlinc V2 dimmers & a KPLv2 in my kitchen, and I'm aware that two of the dimmers are fed from the same circuit which feeds the cooktop. Whenever I dim the lights and am cooking on the induction unit, the induction cooktop makes a very angry buzzing sound, somewhat proportional to the level of dimming, with the worst buzzing happening around 50% dimming of the lights and gradually fading to 0 at 0% and 100% dimming. Any suggestions/thoughts/comments? I don't recall this happening with the old slide-dimmer I had on the circuit, but in the previous setup, I only had 1 dimmer and the rest of the lighting circuits were on switches.
 
OTA said:
and I'm aware that two of the dimmers are fed from the same circuit which feeds the cooktop.
Not sure about the specific problem, but wanted to note in most locations a cooktop should be on its own dedicated circuit. I believe usually it is its own 40A circuit. Perhaps if the switches were on a different circuit you would not have the problem?
 
Steve said:
OTA said:
and I'm aware that two of the dimmers are fed from the same circuit which feeds the cooktop.
Not sure about the specific problem, but wanted to note in most locations a cooktop should be on its own dedicated circuit. I believe usually it is its own 40A circuit. Perhaps if the switches were on a different circuit you would not have the problem?
IIRC it's required by NEC code Steve.
 
First off, this is an induction cooktop and not a traditional stove. Induction cooktops run around 84-90% efficient, whereas most gas and electric stoves only are 35-45% efficient. Because of this, it only draws 12A @ 120VAC, so a typical 40A/240VAC circuit wouldn't be appropriate. I know most cooks/chefs would think this isn't anywhere near enough power, but so far I've found it to be much faster than gas/electric and actually has better control/response than gas.

and I was actually incorrect, it's on the same phase, but not the same breaker/circuit as the lighting. So much for using a sensitive toner on the line. In light of this, I'd imagine the problem would be really nasty if everything was on the same circuit.
 
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