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Old 12-18-2008, 12:06 PM   #1
bmarley5780
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Default Elec. HERMS Wiring Diagram

Been working on a wiring diagram for my electric HERMS.

Can anyone spot any mishaps going on in there?

I am also considering using a air pump to agitate the water in the HLT instead of the motor/paddle setup.
Anyone have any experience with this?

Thanks;
Joe

my-herms-system.jpg  
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Old 12-18-2008, 12:15 PM   #2
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That is almost exactly how I am wiring mine. Nice diagram!

Except I am only running (3) wires to the elements... (2) hots and (1) ground... there is no place for a neutral on them.

I am running a three prong, 30A cord to my element from a 30A three prong dryer outlet.

I am also always going to have power to the PID, and a switch after the SSR that controls the (2) hots to the element... one from the SSR and one from the HOT bar.

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Old 12-18-2008, 12:23 PM   #3
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Only thing I see off hand is your heaters won't have a neutral, so you can drop back to a 3-pole plug on them.
Also, chances are your PID control may not have a ground either.

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Old 12-18-2008, 12:42 PM   #4
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My panel will have (3) swithes and a PID on the face of it. I will have the three pronged outlet (30A) and (2) 20A outlets on the back of the box for the following.

Switch #1 controls the HLT Mixer/A419 for the HLT
Switch #2 controls the March Pump
Switch #3 controls the (2) hots running to my 5500W element

I am thinking of using a 12 x 12 x 6 junction box for the control panel. I have already drawn a template of the switch and PID locations.

Also, to split your incoming Hot, Neautral and Ground... are you using terminal strips? OR are those going to be distribution blocks?

I am ordering my PID, SSR and Heat Sink from Auber Inst. today... once that is placed, all I need to get is the junction box and the distribution blocks to split up my hot, ground and neutrals

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Old 12-18-2008, 01:09 PM   #5
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Pol- Your thread was the inspiration for this diagram. There seems to be a lot of info out there but not a lot "visual" guidance, which helps a lot more then a written explanation. At least for me...

Ya, I was lame on the PID wiring cuz I don't have the first clue on the spec wiring on it.

There is still a lot that I wanted to incorporate on the diagram, but I just wanted to start the thread for proofing reasons. I wish the size limitations were higher on the board to get a better picture up.

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Old 12-18-2008, 01:14 PM   #6
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I like it, your diagram is a GREAT visual for those wanting to do this on thier own.

Are you using terminal strips or distribution blocks for the control box wiring?

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Old 12-18-2008, 01:19 PM   #7
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I dont know yet?!

What is better suited for this kinda thing?

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Old 12-18-2008, 01:24 PM   #8
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I think you need a distribution block for this sort of thing... automation direct sells them.

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Old 12-18-2008, 01:29 PM   #9
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Like this...
http://web2.automationdirect.com/adc/Shopping/Catalog/Power_Products_(Electrical)/Power_Distribution_Blocks/PB1043

Allows three LINES, and 4 LOADS for each line. I will probably have a separate grounding bar.

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Old 12-18-2008, 01:55 PM   #10
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Awesome Diagram Bmarley!!!!! I guarentee that I will be using this after Christmas when I begin buildng my System.

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