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SwiCago / HarviaWiFi

Wifi Control of Harvia KIP Sauna Heater
GNU Lesser General Public License v3.0
41 stars 10 forks source link

Bypassing timer #11

Closed TristanBrotherton closed 3 years ago

TristanBrotherton commented 3 years ago

Hi there, I apologies for the format of this as it's not an issue with your project, but I had a question if you have the time.

I'd like to externally control the power to our KIP and bypass the timer.

I wondered if I could ask your opinion on how to safely take the timer out of the equation so that the heater came on when power was supplied, but still used it's thermostat / limiter.

Warm regards,

Tristan

SwiCago commented 3 years ago

Hi @TristanBrotherton , yes this can be done. You would swap the timer out with a heavy duty toggle switch. (On/off switch) There are three wires going to the timer. The two in the left side of the timer on the diagram(also next to each other on physical device) would be connected to the toggle switch. The 3rd wire on the right side of timer on the diagram would be disconnected and wrapped in electrical tape. It would not be connected to anything. Make sure to disconnect power before doing mods. Green = toggle switch Red = disconnected and wrapped 20210803_201913 NOTE: the timer is to prevent the sauna from being accidentally left ON. Removing the timer safety feature could void your home insurance, should a fire break out from accidentally leaving the sauna heater running longer than it should.

TristanBrotherton commented 3 years ago

I really appreciate your response - thank you. I intend to keep a timer, just external to the sauna so it can be toggled on remotely. Whilst taking my time to implement your solution. Thank you again!

aypodf commented 2 years ago

Hi, thank you so much for putting this useful project together! I'm also interested in this alternative, is there a particular heavy-duty toggle switch you would recommend. Presumably the amp rating should match the heater, right?

Thanks again!

SwiCago commented 2 years ago

@aypodf any standard automotive or home switch will work. The main current goes through the giant relay/contactor. The timer/limiter themselves do not feed much current to turn that giant relay/contactor on/off.