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Old 01-26-2011, 08:44 PM   #1
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Default Electric Herms Schematic

Hi, just looking for some feedback on my diagram. I am hoping to begin building in the next week or two. 3 - 30 gallon kettles, HLT & BK each have 2 5500w elements. Panel will also serve as control for cooler and 2 - 15 gallon fermenters while not brewing as indicated in the schematic. Thanks for taking a look.
https://docs.google.com/viewer?a=v&p...thkey=CPbJxKwD


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Old 01-26-2011, 09:09 PM   #2
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You might need to explain the notation you used on the schematic.

Like...

I get what "SSR" and "LED" are, but what are the "SS" and "CR" items?

SS = some kind of switch?

CR = receptacle maybe?


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Old 01-26-2011, 09:26 PM   #3
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Sorry

SS = Selector Switch
SSR = Solid State Relay
CR = Contact Relay
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Old 01-26-2011, 09:35 PM   #4
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Here is what the panel will look like to help with the electrical schematic...thanks electric brewery, definitely stole a little of your layout ideas.
https://docs.google.com/viewer?a=v&p...thkey=CPWulvgK
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Old 01-26-2011, 09:40 PM   #5
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I'm not understanding what you are doing with the relays inside the PIDs.

For the HLT/Fermenter#1 PID, both alarm relays are set-up so that one of them closing will cause the PID-side of the SS-2 to be active. I can see that this will cause a light and a buzzer to go off if SS-2 is selecting those items.

If SS-2 is set to select CR-7, then CR-7 will close when either one of the PID alarms fires. What does CR-7 control?

Oh... wait... is the circle CR-7 showing the coil and the | | CR-7 showing the load?

Sorry for the questions... this is just a slightly confusing schematic.
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Old 01-26-2011, 09:47 PM   #6
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Yes, you got it, this is a single line schematic, not technically how every wire would run, but significantly easier to draw this way.
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Old 01-26-2011, 10:19 PM   #7
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I guess I am confused about how many actual things you are plugging into this at one time and why there is so much flexibility. Not that flexibility is bad, just seems like it might be overdone here?

Example:

The PID labeled "HLT/Fermenter#1" has the ability to activate two SSRs. one of those feeds "HLT#1/Fermenter#1". one of them feeds "HLT#2".

Do you really have to HLTs?

Anyway... To really activate heat in HLT#2, you have to have SS-10 set to the "HLT#2" position. To really control HLT#1, you have to have SS-9 set to the "HLT#1" position.

So... it's possible here to have that one PID really heating both HLT elements at the same time with the switches in the right configuration.

Likewise, the PID for "BK/Fermenter#2" can control two boil kettles, but the selectors mentioned above have to be flipped the other way.

Do you really have two boil kettles?

I promise I am looking at this, and I see how it's wired.... I am just trying to figure out why it's wired that way.
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Old 01-26-2011, 10:33 PM   #8
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Oh, wait! Do you have 2 element in the BK and 2 in the HLT and you wasn't to be able to distribute power in different ways? (2xHLT,1xHLT+1xBK, or 2xBK)
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Old 01-26-2011, 10:34 PM   #9
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I am only bringing 2 30A 220V lines into the panel. I only have 1 HLT tank with two 5500w elements in it (HLT #1 & HLT #2), also I only have 1 BK tank with two 5500w elements in it (BK #1 & BK #2) Since I only have enough power to fire two elements at any one time I came up with that configuration, this way I can fire one element in the HLT and one in the BK or two in the HLT (none in the BK) or vice versa, depending on the selector switch position. Does this help explain? Thanks for your questions and time.
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Old 01-26-2011, 10:35 PM   #10
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Just saw your reply once I posted, you beat me to it!


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