theminor

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Thanks for the replies. I guess my concern was whether most freezers go above 10 amps. I haven't picked out my freezer yet, but I'm wondering if any freezers go higher than 10. My recollection on compressor motors is that 10 amps would be about a 1 HP motor, which seems awfully high for a freezer compressor, so I doubt it is an issue. I just wanted to be sure.

But it sounds like plenty of people are using this controller on freezers with no problems, so I'll probably go for it!

Thanks again.

Bjornbrewer

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I don't think you'll find many freezers that would go above 5 amps or so. you're house AC compressor probably only draws 10-15 amps.

Good luck

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hlumbard

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I will be buying one of these soon. Thanks to the OP for the info!

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Csuho

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I know my mini fridge draws 3 amps not sure how much the heating pad draws either but I have 1 of them hooked up too for the heating. But he will send you a 110v since you are in the US and it will be 10 amps at 110v. Which I questioned myself before I bought it and then looked at amperage on the fridge and was quite surprised so I just took a chance and got 1.

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millstone

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I purchased two of these and like the size. I have tested them to make sure they work and they do. But I just can't get my head around the F4 setting, so I'm looking for some help. Please tell me if I'm on the correct track. F1 is the temp setting you want for heating or cooling, F2 is the degree difference for the unit to shut off or turn on. F3 is the delay in minutes before the cooling or heating unit turns on. F4 setting allow from 1 to 10 but I don't know what it is used for.

any help is appreciated

thanks

tom

BillKlineVT

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the paper that comes with it says f4 is for sensor calibration so I'm guessing if your temp probe isn't accurate it's some sort of scaling factor. Mine was pretty accurate when I tested it with my calibrated digital thermometer in a glass of water

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Bjornbrewer

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yes. I'd leave it alone unless you notice (with some other calibrated thermometer) that the temperature the controller is reading is off.


I'll be hacking up my fridge pretty soon, installing one of these and making it a fermentation chamber. I'll post pics of this and the keggerator soon (hppfully).

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millstone

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BillKlineVT, Bjornbrewer - thanks for clarifying that

tom

sharpstick

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i don't understand why the probe is inside a jug of water. it looks like you are deliberately handicapping a very sensitive temp controller.
maybe you could just close it up inside an empty container. might be a bit more responsive to air temp fluctuations that way. or just hang it out in the open.
the air temp could get pretty warm or cold before the carboy water temp catches up.

i would also be concerned that it doesn't stay waterproof forever. i ruined a couple of oven probes by submerging them in my brew kettle.

sharpstick

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if you're concerned about running a high power device, you can use the device to switch a 30 amp(or bigger) relay that switches the outlet.