Advice on control panel wiring - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Electric Brewing > Advice on control panel wiring

Reply
 
Thread Tools
Old 04-12-2011, 06:30 PM   #1
HempelNet
 
HempelNet's Avatar
Recipes 
 
Oct 2009
Indianapolis, IN
Posts: 100
Liked 2 Times on 1 Posts



After looking at several PJ wiring diagrams I came up with this. (Thanks PJ for the examples it made making this a lot easier.)

Please comment on what I have incorrect here as it just does not seem correct for some reason.

Thanks in advance..
Click image for larger version

Name:	Wire-Post.jpg
Views:	2135
Size:	45.9 KB
ID:	23956  
__________________

╔═══════════════════════════════════════════╗
: Primary#1 : N/A : Primary#2 : N/A
: Secondary#1 : N/A : Secondary#2 : N/A
: Bottled : Hand-outs ONLY
: Keg #1 : Apfelwein : Keg #2 : Belgian Wit
: Keg #3 : Gumball Head Clone : Keg #4 : Oatmeal Stout
╚═══════════════════════════════════════════╝

 
Reply With Quote
Old 04-12-2011, 09:21 PM   #2
Walker
I use secondaries. :p
HBT_LIFETIMESUPPORTER.png
 
Walker's Avatar
Recipes 
 
Sep 2005
Cary, NC
Posts: 10,987
Liked 101 Times on 89 Posts


What's the yellow button? An emergency stop implemented by forcing GFCI to trip?
__________________
Ground Fault Brewing Co.

 
Reply With Quote
Old 04-12-2011, 09:47 PM   #3
Walker
I use secondaries. :p
HBT_LIFETIMESUPPORTER.png
 
Walker's Avatar
Recipes 
 
Sep 2005
Cary, NC
Posts: 10,987
Liked 101 Times on 89 Posts


The only comment I would make is that the e-stop (if that's what it is) is going to cause 7.2 watts in your 2k resistance. Probably not really an issue that this is over spec of the resistor because the GFCI will trip pretty fast, but something to think about.

The only other thing I can think of is that you might want a very small fast acting fuse to protect the PIDs and some small slow-blow fuses protecting the pumps.
__________________
Ground Fault Brewing Co.

 
Reply With Quote
Old 04-13-2011, 01:05 AM   #4
P-J
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Mar 2010
Charlotte, NC
Posts: 3,336
Liked 302 Times on 235 Posts


Quote:
Originally Posted by Walker View Post
What's the yellow button? An emergency stop implemented by forcing GFCI to trip?
Yes. The circuit is in place to trip the GFCI in the main panel. It is setup as an "Emergency Stop" that provides 0.06A of ground fault current.

Quote:
Originally Posted by Walker View Post
The only comment I would make is that the e-stop (if that's what it is) is going to cause 7.2 watts in your 2k resistance. Probably not really an issue that this is over spec of the resistor because the GFCI will trip pretty fast, but something to think about.

The only other thing I can think of is that you might want a very small fast acting fuse to protect the PIDs and some small slow-blow fuses protecting the pumps.
Come on Walker, Do you REALLY think that your calculated 7.2 watts of power drawn will damage the resistors? Really? Come on. We are talking about a millisecond here.

The fuse illustrated to protect the PID is a "1A Fast Blow". Do you have a suggestion for some other device? How about a link?

Re: The pump. Say you have a pump that you set up to plug into a 120V outlet. (Hey, it's a simple system, Ok?) Would you add a fuse in line to protect the pump? I think not. The diagram shows that the pump is protected by a 15A breaker in the panel. Now what?

Walker, I sincerely apologize for a somewhat curt answer. Sometimes we tend to over think 'stuff'. I'd love to have the opportunity to talk with you about "stuff". I think it would be a fun conversation.

HempelNet,

Once you come up with the 'final' plan and would like a diagram for your records, I'd be more than happy to draw it out for you.

BTW, Thank you for honoring my diagram. I have lots more.

Paul
(P-J)

 
Reply With Quote
Old 04-13-2011, 01:21 AM   #5
Walker
I use secondaries. :p
HBT_LIFETIMESUPPORTER.png
 
Walker's Avatar
Recipes 
 
Sep 2005
Cary, NC
Posts: 10,987
Liked 101 Times on 89 Posts


Quote:
Originally Posted by P-J View Post
Come on Walker, Do you REALLY think that your calculated 7.2 watts of power drawn will damage the resistors? Really? Come on. We are talking about a millisecond here.
No, I don't think it will be a problem, and that's why I specifically said "probably not really an issue".


Quote:
Originally Posted by P-J View Post
The fuse illustrated to protect the PID is a "1A Fast Blow". Do you have a suggestion for some other device? How about a link?
No other suggestion. I simply overlooked it when I looked at the diagram the first time.


Quote:
Originally Posted by P-J View Post
Re: The pump. Say you have a pump that you set up to plug into a 120V outlet. (Hey, it's a simple system, Ok?) Would you add a fuse in line to protect the pump? I think not. The diagram shows that the pump is protected by a 15A breaker in the panel. Now what?
If I were just plugging the pump into the wall, then... no... I probably wouldn't have a fuse there because it would be a PITA to build a box with a fuse and receptacle or whatever.

But... if given the opportunity to spend $3 for fuse to put into a box I was already building to better protect a piece of equipment that cost over $100, then I would ABSOLUTELY do it. No doubt about it.

Quote:
Originally Posted by P-J View Post
Walker, I sincerely apologize for a somewhat curt answer.
Apology accepted.
__________________
Ground Fault Brewing Co.

 
Reply With Quote
Old 04-13-2011, 01:36 AM   #6
Walker
I use secondaries. :p
HBT_LIFETIMESUPPORTER.png
 
Walker's Avatar
Recipes 
 
Sep 2005
Cary, NC
Posts: 10,987
Liked 101 Times on 89 Posts


I must have accidentally erased the last part of my post (in response to the "over thinking").

I am 100% certain that I over think things. It's in my nature and what I get paid to do when I am disguised as a mild mannered engineer.

e-stop resistors : not a big deal

PID fuse : already there. I didn't see it.

Pump fuse : a well spent $3

I do have to ask you, P-J: why suggest a fuse for the PID (a $45 item) but not for the pump (a $125 item)?
__________________
Ground Fault Brewing Co.

 
Reply With Quote
Old 04-13-2011, 01:50 AM   #7
P-J
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Mar 2010
Charlotte, NC
Posts: 3,336
Liked 302 Times on 235 Posts


Quote:
Originally Posted by Walker View Post
...
I do have to ask you, P-J: why suggest a fuse for the PID (a $45 item) but not for the pump (a $125 item)?
You made me laugh. thanks.!
The PID can be wired wrong in a way that it can easily be damaged. No so with the pump. The pump is most commonly wired to a 15A circuit without issues. Just to mention: The pump was designed for circulation of water in a heating system - not for brewing. It is most commonly wired to breakers that protect the wiring. (15A - 14 gauge wire)
I do see your point however.

Thanks for the added post.

 
Reply With Quote
Old 04-13-2011, 01:52 AM   #8
Walker
I use secondaries. :p
HBT_LIFETIMESUPPORTER.png
 
Walker's Avatar
Recipes 
 
Sep 2005
Cary, NC
Posts: 10,987
Liked 101 Times on 89 Posts


Quote:
Originally Posted by P-J View Post
You made me laugh. thanks.!
The PID can be wired wrong in a way that it can easily be damaged. No so with the pump. The pump is most commonly wired to a 15A circuit without issues. Just to mention: The pump was designed for circulation of water in a heating system - not for brewing. It is most commonly wired to breakers that protect the wiring. (15A - 14 gauge wire)
I do see your point however.

Thanks for the added post.
I saw no mention of what pump he was using, so I made no assumptions.
__________________
Ground Fault Brewing Co.

 
Reply With Quote
Old 04-13-2011, 01:56 AM   #9
pickles
 
pickles's Avatar
Recipes 
 
Feb 2008
Columbus
Posts: 2,007
Liked 49 Times on 41 Posts


I've never seen the e-stop that trips the GFCI is this common practice? I think I'd like to add the to mine.
__________________
Gaptooth Brewhouse

 
Reply With Quote
Old 04-13-2011, 02:01 AM   #10
P-J
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Mar 2010
Charlotte, NC
Posts: 3,336
Liked 302 Times on 235 Posts


Quote:
Originally Posted by Walker View Post
I saw no mention of what pump he was using, so I made no assumptions.
Congrats!!!

Uncle.! You win!

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Control Panel VS Computer Bru Electric Brewing 14 01-26-2012 02:35 AM
Yoopers New Control Panel lschiavo Electric Brewing 69 04-13-2011 01:39 PM
Quick control panel wiring question ExHempKnight Electric Brewing 3 02-03-2011 04:03 AM
Simple control panel wiring help HossTheGreat Electric Brewing 27 01-15-2011 05:31 PM
panel to spa panel wiring buffalobrewer Electric Brewing 4 11-29-2010 12:06 AM


Forum Jump