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-   -   Hop Rehab E-Herms build (http://www.homebrewtalk.com/f170/hop-rehab-e-herms-build-374500/)

smittygouv30 12-16-2012 12:23 AM

Hop Rehab E-Herms build
 
1 Attachment(s)

Hello all,
I've changed my mind about 1000x's since deciding to construct a HERMS system about 4 months ago. The idea started off very very small and gradually built and built into what it is today. I blame this site, theelectricbrewery.com, auberins.com, and ebrewsupply.com for giving us wanna-be DIYers the confidence (or stupidity, however you look at it) to try to put together things of this magnitude.
None-the-less, I was initially going to try to keep and keep this thing at 120V so I didn't have to mess with the electrical in my house. After researching the installation process of a 30A 240V breaker, a 4 prong dryer receptacle, and a spa panel I felt it was simple enough to not let it hold me back! So here I am. I've revamped my plan to now include a single 240v 5500W element controlled by a SYL-2352. A second SYL-2352 will be installed for MLT temperature readings with utilization of its alarm features to monitor abnormal temperatures and inform me when the sparge temp is reached. A timer (JSL-71) will also be included. No electric boil kettle as I will continue to control the boil with propane. Lastly, the control panel will have switches to turn on/off 2 pumps, and a switch to turn off the element. For now I've chosen to not include an e-stop mostly because I think they are hideous, but have a feeling i'm going to be talked into including it.

I have yet to order my electrical parts but have finally sat down to design the control panel face. I have a a bunch of wiring diagrams saved to my desktop that I have jacked from other build threads. I plan to hack them all up in the coming week or two to come up with something that will suit my build. I have been back and forth deciding if I want to beg PJ to help me out, but for now I will resist. Regardless, I will certainly require lots of help/feedback along the way. A special thanks to badnewsbrewery for all of his guidance thus far.

One of the things unique about my build is that I want to use a digital photo frame as my "Power on" indicator instead of a plane ol' boring blue light . It looks like it'll be straight forward to wire, as the frame comes with an AC power adapter. I'm not quite sure how I'll mount it but I'm thinking i'll just put a slit in the control panel and slide the thin leg stand on the back of the frame inside the panel and seal it with some silicone to keep anything from getting into the panel. I think it has potential to look very cool but the negative is it takes up a lot of space on the panel front. Any thoughts on this? Cool idea or is it going to look "cheesy"? http://www.amazon.com/gp/product/B00...=ATVPDKIKX0DER

Here is my control panel face which should be to scale:


smittygouv30 12-16-2012 03:06 PM

1 Attachment(s)

I'd also be interested to hear others input about alarm controls. As of now I just have one on/off switch that will control one buzzer. Inputs to the buzzer will come from one PID to as well as the timer. Will I regret not having individual on/off switches for each. I see many builds that have reset buttons and on/off switches, both. I just don't want to regret anything once I get this thing built.

Also, I've tried re-attaching my control panel image as it wasn't showing up on my phone when I checked the thread this morning.

Corey


smittygouv30 12-17-2012 02:17 AM

1 Attachment(s)

Finally finished my wiring diagram. Please don't hold back, be as critical as you can. I had zero electrical knowledge prior to becoming a home brewer. Now I have zero electrical knowledge plus a working grain mill, keezer, and temperature controlled fermentation chamber.

I'm seeking feedback on everything, but specifically panel design, safety of the panel, and of course making sure it will work.

Thanks,
Corey


smittygouv30 12-17-2012 05:45 PM

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Hey Kevin,

Thanks for the feedback. Yea I don't know why I didn't add the second hot line to the dual pole breaker. I blame it on my brain being mush from the hours of reading/researching I did yesterday prior to putting together the wiring diagram. I have fixed that now.

As for pin 8 on the timer that should be the alarm output that will join together with the PID outputs from pin 1 and 14. I just put it together sloppy so you couldn't tell that it was jumping over the timer power inputs at 6 and 9. This is also fixed now.

I thought about the illuminated switches/pushbuttons for my pumps. To me I don't think it looks as clean which is why I went with the standard black switches and a green LED.

I get the whole EPO switch for safety. Honestly my main reason for not wanting one is I think they look really cheesy. Like I said I think I can be convinced but seriously what is the difference between squishing the "hideous gigantic red mushroom" or flipping the 2-way power on/off switch, .003 seconds? The thing that is going to be the problem is how long it takes for me to move from wherever I am standing to the control panel, not how long it takes me to push the button vs turn the switch. Of course this is all in my very biased opinion.

Corey


smittygouv30 12-18-2012 11:16 PM

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Here is another updated wiring diagram with the 3rd alarm mode from the HLT added.


smittygouv30 12-20-2012 01:59 AM

3 Attachment(s)

More small changes to the diagram and control panel sketch based on the feedback.



Edit: added a better quality pdf attachment


smittygouv30 12-20-2012 01:59 AM

3 Attachment(s)

More small changes to the diagram and control panel sketch based on the feedback.



Edit: added a better quality pdf attachment


smittygouv30 12-20-2012 01:59 AM

3 Attachment(s)

More small changes to the diagram and control panel sketch based on the feedback.



Edit: added a better quality pdf attachment


smittygouv30 12-29-2012 12:45 AM

2 Attachment(s)

Unfortunately the only way I can attach a decent quality diagram is through a pdf. Re-sizing my diagram as a bmp distorts it, and the jpeg is terrible for some reason.

So, my apologies in advance for the attachment method, but here is both the control panel face and the wiring diagram. They are both finalized to the best of my ability. I'm looking for any and all last minute critiques. The enclosure is the Auber 16x12x6. I have a march pump already and have ordered greatbreweh's pump but who knows when I will get that. I plan to source all my electrical stuff from mouser, ebrewsupply, auberins, amazon, home depot, and radioshack.

Thanks,

Corey


smittygouv30 12-29-2012 12:45 AM

2 Attachment(s)

Unfortunately the only way I can attach a decent quality diagram is through a pdf. Re-sizing my diagram as a bmp distorts it, and the jpeg is terrible for some reason.

So, my apologies in advance for the attachment method, but here is both the control panel face and the wiring diagram. They are both finalized to the best of my ability. I'm looking for any and all last minute critiques. The enclosure is the Auber 16x12x6. I have a march pump already and have ordered greatbreweh's pump but who knows when I will get that. I plan to source all my electrical stuff from mouser, ebrewsupply, auberins, amazon, home depot, and radioshack.

Thanks,

Corey



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