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Old 03-17-2013, 02:30 PM   #1
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Default 1 pid, 2 ssr, 110v?

Hi all,

I'm getting ready to start ordering the supplies to build a very basic e-bib 110v system. I would like to keep things relatively simple but still have everything run through one control box. I have seen on 110v systems where two elements are used, one through the pid and the other one its own cord into its own circuit (I.e. not through the control box).

I know I can wire both elements through the control box independently but I was wondering if their is a way for the pid to control both elements while each element is on its own 20a circuit. Sorry if my electrical terms are off, I'm an accountant...so basically can the pid control two ssrs with each Ssr on its own electrical circuit?

If so, any ideas on a wiring diagram? This is to be a simple control panel, no pumps, just maybe an on off switch unless you guys suggest something that I am overlooking that you feel I absolutely need.

Thank you for your help.


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Old 03-17-2013, 03:05 PM   #2
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How about something like this:

As always - click on the image to see (and save) a full scale diagram printable on Tabloid paper (11" x 17")



Hopes this helps.

P-J


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Old 03-17-2013, 04:32 PM   #3
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Thank you so much PJ! That is exactly what I'm thinking of. Nice and simple. Thanks for including the pumps just in case. One more question: as long as I plug the box into two gfci outlets I shouldn't need to include any other type of protection right?
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Old 03-17-2013, 04:41 PM   #4
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Quote:
Originally Posted by Vellum View Post
Thank you so much PJ! That is exactly what I'm thinking of. Nice and simple. Thanks for including the pumps just in case. One more question: as long as I plug the box into two gfci outlets I shouldn't need to include any other type of protection right?
That is correct.

Just another note: With the 2000W elements the current draw on each will be 17A. This means you would need each outlet to be on a 20A circuit and on seperate breakers.

If you use 1500W elements you can use 2 - 15A circuits as the current draw would be 12.5A on each.
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Old 03-17-2013, 06:20 PM   #5
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Thanks so much PJ. Your help is invaluable.
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Old 03-17-2013, 08:18 PM   #6
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PJ,
Dude you rock. I was also looking for a simplified PID set up for my tower. I plan to run two pids, one pump, and various other switches to control air solenoid valves for the tippy dump and leg extensions. This diagram give me a perfect base circuit to doublle and then add the remaining control circuits as needed. Thanks man!!!!

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Old 03-17-2013, 09:02 PM   #7
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Quote:
Originally Posted by P-J View Post
That is correct.

Just another note: With the 2000W elements the current draw on each will be 17A. This means you would need each outlet to be on a 20A circuit and on seperate breakers.

If you use 1500W elements you can use 2 - 15A circuits as the current draw would be 12.5A on each.
Or you can use two 1650 Watt elements and be just below 15 Amps each (13.75 A).
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Old 03-17-2013, 09:15 PM   #8
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Or you can use two 1650 Watt elements and be just below 15 Amps each (13.75 A).
Sounds good - but?
Then the pump(s)?
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Old 03-17-2013, 09:31 PM   #9
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Sure, a MARCH 0809-0196-0600 pump is rated at 1.4 Amps, but I checked mine with a amprobe and it draws less than 1 Amp running. The reason is a motor's current draw is dependent on load & apparantly these, or at least mine, is not under full load whan running.

So, the pump + the element should draw slightly less than 15 Amps.

Here's what my pump is running.
http://www.instructables.com/id/Buil...el-RIMS-tube-/
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Old 03-18-2013, 08:37 PM   #10
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What would the minimum wattage required be to boil 5-7 gallons of wort? I have a 20a 110v outlet and I think another 15-20A 110v outlet in separate portions of my workshop.


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