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Old 07-22-2012, 07:27 PM   #1
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Default Ebay Temp Controller (STC-1000) Wiring diagram

Hey everyone. I'm in the process of building a fermentation chamber. I have it about half done, but I'm going to wait til its finished to post pictures.

I'm posting because I want to get some feedback on my wiring diagram, to make sure its going to work like I want it to.

I am using a single STC-1000 dual control (heat and cool) controller. I have gutted a dorm fridge and I'm using the compressor and coils from that for the cooling. I will probably set up the light bulb in a can or a small space heater this winter if the laundry room gets too cold (unlikely, but you never know).

As far as wiring goes, I'm going to have 2x double outlets mounted on the ferm chamber. 1 will be for heating, 1 will be for cooling, and the other two will always be on (1 will be running a pair of computer fans that I have rigged up). The 2nd always on plug with be in case I ever need anything else, or maybe one to mount a small light inside or something. I am going to use the top of the ferm chamber as a countertop, and could probably use this last outlet for my yeast starter stirplate, or whatever else I might need.

I'm using a 10 foot, 14 guage, 15 amp, 3-prong plug to connect to the wall. Take a look at my wiring diagram and see if I'm missing anything... Thanks!
Conner

wiring-diagram.gif  
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Old 07-22-2012, 07:32 PM   #2
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looks right to me. you may consider putting a fuse in there.

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Old 07-22-2012, 07:37 PM   #3
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Quote:
Originally Posted by gx1400 View Post
looks right to me. you may consider putting a fuse in there.
Would I just splice it into the hot line going to terminal 1 on the controller?
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Old 07-22-2012, 10:18 PM   #4
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Looks correct to me also.
For the fuse, you can put it where you mentioned, or put it before that on the hot just as it comes into the box. That way the fuse protects both the controller and the always on outlet.

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Old 07-22-2012, 10:22 PM   #5
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Ok. I assume I would use a 15amp fuse, since that is what the outlets and the power cord are rated for?

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Old 07-22-2012, 10:26 PM   #6
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Yeah, I believe the relays on the STC-1000 are only rated for 15 amps also.

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Old 07-23-2012, 12:42 AM   #7
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What's the point of a 15amp fuse? Tie into a 15amp breaker off your panel.

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Old 07-23-2012, 12:50 AM   #8
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I didn't fuse the ones I made for that reason. However many garages have 20A circuits in them, so in that case I would fuse it.

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Old 07-23-2012, 12:55 AM   #9
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Quote:
Originally Posted by mux View Post
What's the point of a 15amp fuse? Tie into a 15amp breaker off your panel.
Well, this should be going into my laundry/furnace/storage room. Which is where the fuse box is. I will have to check the wall outlet(s) I can use and see what breaker they are run to.

I don't think I'll need a fuse, but we'll see.
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Old 07-23-2012, 11:34 PM   #10
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So any consensus on whether or not I need to add a 15 amp? I can't determine if the outlets available are 15amp or 20amp, without turning actual breakers on and off (poorly labeled box). I don't want to do that because I have 4 aquariums and 2 reptile cages running off of one of the basement circuits, and they don't always respond well to having their power cut like that.

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