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Old 05-29-2013, 02:58 AM   #11
packet
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Originally Posted by jacobg83 View Post
Where did you get your conicals from?
Spraysmarter. Agrimart has them with free shipping if you leave them in your cart for a day or two though.

I had ordered them from Rural King,but they had an 8 week backorder on them.

My only complaint about the ones from Spraysmarter is that they must have been sitting in a barn or something. the outside of the conicals were filthy when they showed up. A quick blast with the hose fixed that though.
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Old 05-29-2013, 03:26 AM   #12
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Looking forward to seeing your progress! This is on my to-do list as well. Unfortunately, my list is getting really long. ;-)

edit: One thought on your design. Instead of controlling the pump with the bcs, couldn't you just get a pressure activated diaphragm pump and then just use the bcs to control the solenoid valves for the glycol going to each conical? This way the pump will turn on automatically as needed. My apologies if this is your plan and I misunderstand your description.

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Old 05-29-2013, 04:11 AM   #13
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Looking forward to seeing your progress! This is on my to-do list as well. Unfortunately, my list is getting really long. ;-)

edit: One thought on your design. Instead of controlling the pump with the bcs, couldn't you just get a pressure activated diaphragm pump and then just use the bcs to control the solenoid valves for the glycol going to each conical? This way the pump will turn on automatically as needed. My apologies if this is your plan and I misunderstand your description.
I suppose I could, but it wouldn't gain me a ton. With the current plan, I can have the pump turned on to circulate the glycol in the reservoir. The BCS has more than enough outputs to control the pump anyways. It's just another relay to add to the controller. The main restriction with the BCS is the number of temp probes.

I looked in to solenoid valves since they're quite a bit cheaper than mechanical ball valves, but they have very small diameter openings, which could be a problem if I get a small chunk of ice in the line.

The downside to the ball valves is they're apparently a major pain to find in the US. Everywhere I looked was out of stock. So, I had to order them from the factory in china.
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Old 05-29-2013, 04:31 AM   #14
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Subscribed to see how you go about this. Looks good so far.

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Old 05-29-2013, 05:36 AM   #15
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Subscribed. It will be great to follow the progress on this.

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Old 05-29-2013, 12:50 PM   #16
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Old 05-29-2013, 02:03 PM   #17
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Quote:
Originally Posted by packet View Post

When a fermenter needs to be chilled, the BCS will turn on the pump to start circulating the glycol and then turn on a motorized ball valve to send the glycol to the specific fermenter.
Turning the pump on and off to many times per hour may not be the best solution.
Check with the manufacturer or look at the data sheet how many start & and stops per hour the pump can handle.
My glycol pump runs 24/7 and the controller turns the solenoid valves on and off.
Cheers,
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Old 05-29-2013, 02:27 PM   #18
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Thanks for posting this build.. I may be looking to do something glycol-y if/when I start brewing lagers.

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Spraysmarter. Agrimart has them with free shipping if you leave them in your cart for a day or two though.
The fine print is "orders over $250"... already checked that.
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Old 05-29-2013, 02:49 PM   #19
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Quote:
Originally Posted by ClaudiusB View Post
Turning the pump on and off to many times per hour may not be the best solution.
Check with the manufacturer or look at the data sheet how many start & and stops per hour the pump can handle.
My glycol pump runs 24/7 and the controller turns the solenoid valves on and off.
Cheers,
ClaudiusB
Eh, it's a $40 pump. If it's a problem I can always replace it.
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Old 05-30-2013, 10:25 PM   #20
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How often do you expect the AC unit to run?

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